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Home My WebLink About7 Gateway Ph 2 04-36 Creek CrossingDEVELOPMENT PERMIT MINIMUM SUBMITTAL REQUIREMENTS ~ $200.00 development permit fee. ~ Drainage and erosion control plan, with supporting Drainage Report two (2) copies each ON/A Notice of Intent (N.0.1.) if disturbed area is greater than 5 acres Date of *Required Preapplication Conference: Aug. 2002(0verall Project with emphasis on development under Morrison CLORM-Fl. Nov. 18, 2002 (Overall Project), Mar. 2003 (Master Prelim. Plat Phases 2-4-inclusive of creek crossing), April 2004 (Phase 3-inclusive of crossing) *(Required for areas of special flood hazard) LEGAL DESCRIPTION Portions of: The Gateway Phase 2 & the B.G .P .D. 7.54 Ac tract (Future Phase 4) APPLICANT'S INFORMATION (Primary Contact for the Project): Name Kling Engineering & Surveying I Fred Paine E-Mail ---"'""fr...;;;;.e=d@""""'"k=lin:..:.;g;;L.:e::..:..n=g=.c=o;.:..:m_,__ __ _ Street Address ______________ 4:.....:1-=0-=-1-=T-=e=x=as=-=-=Ac.:...ve=-=S=u=it=e-=-A-=---------- City Bryan State Texas Zip Code 77802 Phone Number 979-846-6212 -------~~----Fax Number 979-846-8252 PROPERTY OWNER'S INFORMATION: Name Brazos Gateway Place Dev. I David Scarmardo E-Mail -~da ..... v ...... id~@ .......... s~ca ..... rm~a~rd ..... o~f~oo ..... d~s~.c~o~m"'---_ Street Address -----------------1=28.._9---...N"""". ~H~a ..... rv~e ..... Y ..... M---it~c ...... h""""el"--1 ..... P ...... kwy~------ City ____ ....:B=ry~an....__ _____ State Texas Zip Code 77803 Phone Number 979-779-7209 Fax Number 979-822-1763 ARCHITECT OR ENGINEER'S INFORMATION: Name DCI Engineers, Inc. I Steve Davidow E-Mail sdavidow@dci-engineers .com Street Address _________________ 4=2~1 ...... W~ ....... R_i_ve_r_s_id_e_A_v_e~S_ui_te_6_0_6 _____ _ City Spokane State Washington Zip Code 99201 Phone Number 509-455-4448 Fax Number 509-455-7492 Application is hereby made for the following development specific site/waterway alterations : Private Access Drive Creek Crossing with associated Culverts & Utilities Crossing ACKNOWLEDGMENTS: I, David Scarmardo, design engineer/owner, hereby acknowledge or affirm that: The information and conclusions contained in the above plans and supporting documents comply with the current requirements the City of College Station, Texas City Code, Chapter 13 and its associated Drainage olicy dD ~S ~ 6/13/03 1 of 2 As a condition of approval of this permit application , I agree to construct the improvements proposed in this application according to these documents and the requirements of Chapter 13 of the College Station City Code Contractor CERTIFICATIONS: A. I, , certify that any nonresidential structure on or proposed to be on this site as part of this application is des ignated to prevent damage to the structure or its contents as a result of flooding from the 100-year storm . Engineer Date B. I, , certify that the finished floor elevation of the lowest floor, includ ing any basement, of any residential structure , proposed as part of this application is at or above the base flood elevation established in the latest Federal Insurance Administration Flood Hazard Study and maps , as amended . Eng ineer Date Engineer Engineer Date In accordance with Chapter 13 of the Code of Ordinances of the City of College Station , measures shall be taken to insure that debris from construction , erosion , and sedimentation shall not be deposited in city streets , or existing drainage fac ilities . All development shall be in accordance with the plans and specifications subm itted to and approved by the City Engineer for the above named project. All of the applicable codes and ordinances of the City of College Station shall apply . 6/1 3/03 2 of 2 DEVELOPMENT PERMIT PERMIT NO. 04-36 CITY OF COLLEGE STATION Pla nning d-Dewlopment Snvicn FOR AREAS INSIDE THE SPECIAL FLOOD HAZARD AREA RE: CHAPTER 13 OF THE COLLEGE STATION CITY CODE SITE LEGAL DESCRIPTION: Gateway Subdivision Phases 2 - 4 DATE OF ISSUE: 5/3/6 OWNER: Brazos Gateway Place Dev I David Scamardo 1289 N. Harvey Mitchell Pkwy Bryan, TX 77803 SITE ADDRESS: DRAINAGE BASIN: Burton Creek VALID FOR 1 MONTHS CONTRACTOR: TYPE OF DEVELOPMENT: Full Development Permit SPECIAL CONDITIONS: All construction must be in compliance with the approved construction plans All trees required to be protected as part of the landscape plan must be completely barricaded in accordance with Section 7.5 .E., Landscape/Streetscape Plan Requirements of the City's Unified Development Ordinance, prior to any operations of this permit. The cleaning of equipment or materials within the drip line of any tree or group of trees that are protected and required to remain is strictly prohibited . The disposal of any waste material such as, but not limited to , paint, oil, solvents, asphalt, concrete, mortar, or other harmful liquids or materials within the drip line of any tree required to remain is also prohibited. Permit must be in compliance with all local, state and federal requirements and permits -i.e . TPDES TXR150000. The Contractor shall take all necessary precautions to prevent silt and debris from leaving the immediate construction site in accordance with the approved erosion control plan as well as the City of College Station Drainage Policy and Design Criteria. If it is determined the prescribed erosion control measures are ineffective to retain all sediment onsite, it is the contractors responsibility to implement measures that will meet City, State and Federal requirements. The Owner and/or Contractor shall assure that all disturbed areas are sodden and establishment of vegetation occurs prior to removal of any silt fencing or hay bales used for temporary erosion control. The Owner and/or Contractor shall also insure that any disturbed vegetation be returned to its original condition, placement and state . The Owner and/or Contractor shall be responsible for any damage to adjacent properties, city streets or infrastructure due to heavy machinery and/or equipment as well as erosion, siltation or sedimentation resulting from the permitted work. In accordance with Chapter 13 of the Code of Ordinances of the City of College Station, measures shall be taken to insure that debris from construction, erosion, and sedimentation shall not be deposited in city streets , or existing drainage facilities. I hereby grant this perm it for development of an area inside the special flood hazard area. All development shall be in accordance with the plans and specifications submitted to and approved by the City Engineer in the development permit application for the above named project and all of the codes and ordinances of the City of College Station that apply. A~lnlStratorfRePresentative Date KL iNG ENGINEERING & SURVEYING Consulting Engineers • Land Surveyors 4101 Texas Avenue, Suite A Bryan, Texas 77802 Tel. 979/846-6212 Fax 979/846-8252 TO: City of College Station -Development Services DATE: PROJECT NO.: 1/20/05 P.O . Box 4234 Bryan , Texas 77805 PROJECT NAME: Gateway Phases 2-4 Creek Crossing ATTENTION: Bridgette George WE TRANSMIT: 0 Under Separate Cover ./Enclosed VIA: OMail ./ Messenger O Federal Express O Lone Star Overnight OU PS 0 Special Courier O Picked Up By Your Office NO . REFERENCE : THE FOLLOWING: D Prints D Copies D Originals D Plat 0 Field Notes 0 Plans ./Report 0 Estimate D Cut Sheets D Computer Printout D File D Contract D Other -Invoice DESCRIPTION 1 Hydraulic Comparison I Analysis *Information Requested by Engineering Dept. for Final plan approval. Please expidite Thanks Case #04-00100036 FOR : ./Your Review & Approval 0 Your Review & Comment 0 Your Review & Distribution 0 Your Review, Revision & Return 0 Your Signature & Return ./Your File and/or Use 0 As Requested By : D Please Acknowledge Receipt of Enclosures D Please Return Enclosures To D Copies Of This Letter Of Transmittal Sent To : If Enclosures Are Not As Noted Please Notify Us At Once . Signed : Fred Pai ~ / .. hi f ''t I' ttl 111 tr ~ I II I It ,, 2 7r;, 3 2 7';."'; <27 . t; 2-7~ 8 KLING ENGINEERING & SURVEYING Consulting Engineers • Land Surveyors • 4101 Texas Avenue, Suite A Bryan, Texas 77802 Memo : To : From: B.J. Kling, P.E., R.P.L.S. S.M. Kling, R.P.L.S. Telephone 979/846-6212 Fax 979 / 846-8252 City of College Station -Development Services Development Engineering 8.J. Kling Post Office Box 4234 Bryan, Texas 77805 Re: DP-Gateway Phase 2-4 Creek Crossing, Case #04-00100036 : 1 '11 \llO~~~ The purpose of this memo is to document the water surface elevation for the Tributary to Burton Creek before and after proposed construction of the box culvert. Current and future development within the area has and will require the placement of fill in the floodway fringe as allowed by FEMA. Initial CLOMR-F(s) have been filed and accepted for this action . A final LOMR.-F which will incorporate as-built conditions of fill placement and culvert construction will be submitted upon construction completion Attached to this memo are the following : input for key cross sections, summary result tables, and graphical representations of the water surface profiles and key channel cross sections. Documeni_ation for both the duplicate effective model (DEM) and the proposed conditions model (PCM) are included . Additionally, accompanying this memo is a disk containing the HEC-RAS computer files used in the analysis. The duplicate effective model is based on a LOMC effective October 30, 2003 (FEMA case no. 03-06-102P). The proposed conditions model is a copy of the effective model with the necessary add itional cross sections inserted to analyze the proposed culvert . It should be noted that River Station 512 on the DEM was renumbered to River Station 554 on the PCM . The renumbering is based on the actual stream channel reach length defined in the effective model. As shown in the summary results, the addition of the box culvert structure does not increase the base flood elevation above allowable floodway water surface elevations . The following table is provided for reference . Results jor DEM I PCM River Station 387 512(Culvert) 510/554 . 632 Q total (cfs) 941 / 941 I 941 941 / 941 I 941 941 / 941 I 941 941 / 941 I 941 Q channel (cfs) 479.9 / 627.2 / 477.4 NA/ 941 543 .31756.0 / 499.9 323 .0 / 345 .8 / 316 .1 WSEL (ft) 274 .2 / 275 .1 / 274.2 NA/ 274 .6 275.0 / 275.9 / 275.3 275 .6 / 276 .5 / 275.8 Depth of Flow (ft) 6 .217.1 / 6.2 NA/ 5 .9 6.0 / 6.9 / 6 .3 8.4 / 9.3 / 8.6 Results organized as follows (DEM floodplain I DEM floodway I PCM floodplain) Duplicate Effective Model (D.E.M.) Plan : Plan 05 RIVER-1 Reach-1 RS : 387 Profile: PF 1 0.080 0 .065 0.080 190.00 285.00 160.00 200.81 126.47 64.47 200 .81 126.47 64.47 365 .51 479.88 95.62 135.20 33 .00 52.73 1.82 3.79 1.48 1.49 3.83 1.22 5231 .7 6868 .7 1368.6 135 .31 34.54 52.77 }NndfrE i(i:tH:••••••••.• 0.45 1.12 0.37 0 .82 4.23 0.55 2.83 2.41 0 .15 1.97 1.08 0 .15 Plan : Plan 05 RIVER-1 Reach-1 RS : 510 Profi le: PF 1 • i~ltbS: • )l ¢~~H~ei; •Hti96tC>:i3 ..................... 0 .080 0.065 0.080 124.00 167.00 124.40 135.28 133.32 84.33 135.28 133.32 84.33 253 .38 543 .27 144.35 102.22 41 .00 73.06 )ieiT:Oiaitru&}• :::••·••··· 2.61 •Av9 UveLWsF•t•••:•.•::•L•• 1.87 4 .08 1.71 1.32 3 .25 1.15 3024.3 6484.4 1723.0 102.44 42.95 73 .09 0 .58 1.36 0 .51 1.08 5 .54 0.87 3 .31 2.91 0.36 - 2.31 1.22 0 .33 Plan : Plan 05 RIVER-1 Reach-1 RS : 632 Profile : PF 1 :::· r••w~~P:ij ···••t•¢ti~fi~~ •••••• R~6i!¢13 V~iH~~lHM •:-:••:•·•••······ 0.080 0 .065 0 .080 w:s /l:i~vtrtY. ......... . 106.00 122.00 115 .00 :CiitWiS/(ft)i:::••••••:• 245 .63 87.39 54.67 245 .63 87.39 54.67 543 .67 323 .04 74.28 85 .2 6 15.00 38 .02 •vefT:.otafltftisV • • • •·• • · · · · 2 .2 1 3.70 1.36 2.88 5 .83 1.44 9450 .8 5615 .6 1291 .3 85 .51 18.55 38 .13 •Min dhEi •ti:tJ•:••••·•····· 261 .20 .•·st:1eafoo1sCift1 rn·•t•J>ff 0.59 0 .97 0.30 1.31 3.60 0 .40 3 .78 3 .2 1 0.55 2.54 1.30 0.48 ----------------------------------- HEC-RAS Plan : Plan 05 River : RIVER -1 Reach : Reach-1 ~~~~h ••·• ~Ne! $.i~ • Y ~r c;(i 1 ~: / • 9J9.t ~i •••• M i ~ ¢h~l / W i $~ ¢1~v Gii t \i\(S . ~[~j ~l~V ~.(?; $1o?Ei ......... • • (~f~} HY / (ft)/ (iff n (rtl t rti H @rtF V~i¢hnl W~F - Fi~A r~~ / •HfCiii li\/id.ih f'fo®.~ ~¢RI{ (~:#t H it •(m ••••••••···· ••·•·• L ••• ( r-R_,_,e.,..,ac.,,.,iJ.,,.,i1,,....,,,.•: •,,,.:E bo=·.,.,.,,,··.,,.,··.,,.,•• ~P,,.,.F,,,,1,,_,,:••,,.,,•••,,.,,••·.,,,·•·,,.,j·· __ 9_4 __ 1.0Q.~. 269.60 _ -·· !fO. 73 __ _E.q]3_~ ____ 27 ~. ~~-_ o .07!_266 ____ 5_.8_3+--__ 1_99_.66--+ ___ 25_5_.5_2+--___ 1_.06--1 Re a ch·) < ij HY RF2 / > 941 .00 269.60 271 .17 271.17 271 .84 0 .059206 6 .80 146.06 110.00 1.02 •••••••••••••••••••••••• ••••• ••••••••••• •••••••••••••••••••••• Reab il,1 / 2 15 HH .. PF2 > R ~~¢h-1 ••••••• .~~! . EI R ¢~!;h~f ®t / . > Pfi.. + ........ . React1~1 ·:n••· sfo ••••••·•···•••• P F1 R ¢~¢h+~ <• sfo · H f:;F:~ d:. • •••••••••.•• /< ••<•• •Reac:il.:1 •··•·••••• P:F:1 n > ... Rea cilij + w ~ ......... PF2 .. • •• 941 .00 941.00 941.00 941 .00 941 .00 941.00 941 .00 941.00 866 .00 866 .00 268.00 268 .00 268.00 268 .00 269.00 269.00 267.20 267.20 270.00 270.00 273.47 274 .35 274 .20 275.13 275 .03 275 .93 275 .63 276 .54 276 .38 277.26 271 .96 273 .52 274.44 274.33 275 .32 275 .20 276 .20 275.75 276.65 276 .46 277.53 0.002380 0 .002427 0 .004881 0 .004537 0.007019 0 .006607 0 .003309 0 .002335 0.003513 0.005848 2 .19 2 .60 3 .79 3 .99 4 .08 4 .45 3 .70 3.42 3.10 4.42 574.60 396.20 391 .76 287.47 352.92 237.73 387.69 377 .16 467.45 215 .75 287 .43 114.00 220 .92 79 .00 216 .28 66 .00 138 .28 85 .00 276 .72 53 .00 0.23 0 .24 0 .34 0 .32 0.40 0 .39 0.27 0 .23 0 .29 0 .38 ~:~~J :i:.·H~.· .. : ___ :_:_lv~-rt-+-__ 2_1_1._10-+-__ 27_7_.3_5-+--__ 27_4_.5_1-+--__ 27_7_.3_7-+--_._o_.000_1_0_2-+--__ 1_.56-+-__ 8_37_.06-+ ___ 29_2_.48--+-____ o_.1--<3 R ~~~ljij • • 866.oo 211 .1 o 279 .97 275 .34 280 .03 0 .000837 2 .34 473 . 76 91 .60 0 .16 m ~~-=------_-++-------=-----:_-_-_-_---+-+---_-_-_-:_-_-_-_-:_,___ _______ -:_-_-_-_-++---_-_-_--:_-_-_-_---+--+---_-_-_-=: Rij ~!*i~~ < : H$Q : / H Pf i: •• .. .................... / ········.···. ··<•? 866.00 866 .00 866 .00 866 .00 429 .00 429 .00 Culvert 274.50 274.50 277.20 277.20 278 .40 278 .40 280.22 280.80 ·-· 281 .86 282.40 282 .04 282 .52 280 .22 281 .09 0.027387 280 .80 281 .74 0.026727 T-----+-----~ 281 .90 282 .43 282 .10 282.55 0 .001428 0 .001062 0 .003693 0.001561 8 .94 8 .77 2.26 1.81 2.10 1.59 159.59 136.17 642 .40 594.88 230 .94 302.94 . 110.74 65 .00 263.99 160.00 159.36 149.70 0 .79 0.72 0 .19 0 .15 0.27 0.18 Reac:il.:1 < • 1643 +: ~R~~a*•~*~~j ~••.•~l+I .,,,.~.~ • .,,, •• .,,, •• r.,,,•••P,.,..,,,.,,,.,,,.,,,,.,,,f---4-29-.-oo-+---2-19-.oo--+--2-86-.1-8+---2-8-2.-45-+---28-6-.2-1 t---o .-ooo-49-9+----1.-49-+---4-13-.66--+--1-68-.48--+----o .___,12 R¢#i:@ H t 7$L •••• PP2 / 429 .oo 279 .oo 286.23 282 .45 286 .26 0 .000528 1.55 373 .89 138.34 0 .12 Rea ct:\.:f H • 1953 •< fi ii:i H •: n 429.00 279 .60 286.26 286.29 0 .000510 1.63 379.92 115 .46 0 .12 ... . . ... . .. 429 .00 279.60 286.33 286 .45 0 .002018 2.73 157.14 27 .00 0 .20 429 .00 280.40 286 .30 286 .38 0 .001369 2.49 249.14 95.28 0 .19 429 .00 280.40 286 .51 286 .69 0 .003122 3 .44 126.83 24.00 0 .26 HEC -RAS Plan: Plan 05 River : RIVER-1 Reach : Reach-1 (Continued) .. R e~c:h •L ~ivl#$t~ H P rcifii ~• a J~t ~i U. M in¢~.~,. :V{if ~fe.V.•• ¢r~W ~~k · ~:(3;e 1~ ••e .{3.!$.i~P.E! .• Y~!¢h ~l ) f l ~A r~~ T9P.Wi4.lh •f1fo®~ti ¢h!H H•H ·•••:•••I ••• ········ < .. < Hiff ••• Hf!F >> H @Y • ((ff Wfi F > Hrtts fr ••• •<~f:\L ? •• Jf:\FU ••·• • IH • ·•>••·········· ....... : .. ::•·•••···· ...•... :.•••• 429 .00 281 .50 286 .61 286 .91 0 .009429 5 .21 121 .97 65.31 0.47 429 .00 281.50 287 .24 287 .96 0 .021343 6.83 62.84 14.00 0 .57 ............. ··········1••···················· ........................ . 429 .00 287 .00 291.44 290 .73 291 .80 0 .012130 5.07 107.49 71 .93 0 .52 429 .00 287.00 292.41 292 .65 0 .005153 4 .00 119.06 35 .00 0 .36 HEC-RAS Plan: Plan 05 River: RIVER-1 Reach: Reach-1 Reach I ~ivef. $1~ I ~riifil¢ l $~$; :~1e~ I •wl$/E;I~ :I V~! 1:1~aj d Frhlh ~~~ I ¢~ ~ ~~~ I 9 ~~1t ' <rtE < < @ + H lftF H~faF 270.73 0.39 458.66 Reach-¥ ... = 211.84 211.11 0.61 129.34 R~ac@ y 12t$ !PIH .. 273.52 273.47 0.05 2.33 0.07 471.54 Reacf.ii1 J2i5 H IP:F2 ( 274.44 274.35 O.ilii 2.48 0.12 213.83 R¢~ch~F • 13137 1PF1 274.33 274.20 0.14 0.78 0.03 365.51 R~ach~1 1®1 + IPF2 . 275.32 275.13 0.19 0.84 0.04 313.81 .. ·:::::: :-c:,~:::::c1::::: :::: :: fReacN1 ·=.••••Is@ ··•<TleF1 n··· 275.20 275.03 0.17 0.86 0.01 253.38 1R~[CBW •••!$~() L• y IAF~,/Y'" 276.20 275.93 0.27 0.84 0.03 185.00 .Read1i1 <•·1632 •• OHP:FF >::··· 275.75 275.63 0.12 0.53 0.01 543.67 iReacfi.:j ·••·••••lroi :Jfiif2T··••·•••••••= ,. ................... . 276.65 276.54 0.11 0.43 0.03 471.22 R~ac(M >1$27 ?•IP:F.:F•·•••==:··· 276.46 276.38 0.08 0.70 0.01 493.57 'Relfof.i.;1: =•••••19.27 •••>:: H lP:F.:2/ • ,, ... 277.53 277.26 0.27 0.81 0.06 197.18 :R~[cl'@T01®2 :.:it•!.•.•>•••===··=·=·=··.: Culvert ·:Reafali1 •:••••l~ir>•••• .:: •IP:tf&•• ==·= 277.37 277.35 0.02 721.06 1R~~~ffi~ >••••l$q:::•••••in•lf:l\1~:•H•••nY 280.03 279.97 0.06 500.05 -R~a¢im •••<IH$o ••n••nrleffi:t:•>•·•t•• 281.09 280.22 0.87 0.31 0.34 116.48 ·R¢a¢fr:1 MT6P •• : ?lfiitz r = .. 281.74 280.80 0.93 0.37 0.35 227.25 CiGh~rih~l l QJ{igh~ l •Tili:iWi®i) HGMH n h : {GfsF H Hitl 475.26 811.66 464.84 727.17 479.88 627.19 543.27 756.00 323.04 345.77 372.43 668.82 143.58 342.68 568.34 638.75 7.08 4.61 95.62 144.35 74.28 124.02 1.37 23.26 181.18 255.52 110.00 287.43 114.00 220.92 79.00 216.28 66.00 138.28 85.00 276.72 53.00 292.48 91.60 110.74 65.00 1R~~¢l;i+TLJi~~1• •••• IP.Ft ···••A 281.901 281.861 0.031 0.641 0.171 70.961 163.921 631.131 263.99 R~aPh~~ ••-•••• 1?<M +<• • Pit~/• .... ::·•i:::::: ······r······················· 1Reacllff ·•<•1102 >•·••== R~ach~i Inez HIPFZ.C. ... fSS:::::: ...... .... ......... . . ............. . . ............... ....... , ....................... , ........ . .. Reac~1 ::::::: 1953 =:=::=::•.=:: Alf:t:::::::::: ,., 0R~~¢~E Hh~$:3 / . •. IPF'~ •••)••• 'Reacf.1~1 :Jzo41T ••• HIP:Ff • :: 'Reachifr 1'2o4+ • • IP.F.'2 282.43 282.40 0.03 0.52 0.18 147.97 718.03 160.00 282.10 282.55 Culvert 286.21 286.26 286.29 286.45 286.38 286.69 282.04 282.52 286.18 286.23 286.26 286.33 286.30 286.51 0.06 0.03 0.03 0.03 0.03 0.12 0.07 0.18 0.19 0.12 0.08 0.15 0.07 0.22 0.01 0.00 0.00 0.03 0.02 0.03 0.00 103.80 87.87 28.86 18.22 1.77 370.90 353.50 290.46 303.30 253.64 429.00 297.68 427.23 58.10 75.50 34.74 37.83 146.51 113.11 159.36 149.70 168.48 138.34 115.46 27.00 95.28 24.00 HEC-RAS Plan : Plan 05 River : RIVER-1 Reach : Reach-1 (Continued) 286.91 286 .61 0 .30 0 .42 0 .12 67 .09 281 .78 80.14 65 .31 287 .96 287.24 0 .72 1.00 0 .27 429.00 14.00 Reacl'IW 269'1 /' PF1 291 .80 291.44 0 .35 4.85 0 .03 47 .18 373 .34 8 .47 71 .93 Reach"i 269 1 PF'2 292 .65 292.41 0 .23 4 .53 0.15 21 .24 391 .26 16.50 35 .00 Errors Warnings and Notes for Plan : Plan 05 Location : River: RIVER-1 Reach : Reach-1 RS : 2691 Profile : PF 1 Warning : The energy loss was greater than 1.0 ft (0.3 m). between the current and previous cross section . This may indicate the need for additional cross sections. Location : River: RIVER -1 Reach : Reach-1 RS : 2194 Profile : PF 1 Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than .0 .7 or greater than 1.4. This may indicate the need for additional cross sections. Location : River: RIVER-1 Reach : Reach-1 RS : 2041 Profile : PF 1 Warning : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0 .7 or greater than 1.4. This may indicate the need for additional cross sections. Location : River: RIVER-1 Reach : Reach-1 RS : 1504 Profile : PF 1 Warning : Divided flow computed for this cross-section. Warning : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. Location : River: RIVER-1 Reach : Reach-1 RS : 1384 Profile : PF 1 Warning : The velocity head has changed by more than 0 .5 ft (0.15 m). This may indicate the need for additional cross sections. Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0 .7 or greater than 1.4. This may indicate the need for additional cross sections. Location : River : RIVER-1 Reach : Reach-1 RS :1160 Profile : PF 1 Warning : The energy equation could not be balanced within the specified number of iterations . The program used critical depth for the water surface and continued on with the calculations . Warning : The velocity head has changed by more than 0 .5 ft (0.15 m). This may indicate the need for additional cross sections . Warning : The conveyance rat io (upstream conveyance divided by downstream conveyance) is less than 0 .7 or greater than 1.4. This may indicate the need for additional cross sections. Warning: The energy loss was greater than 1.0 ft (0 .3 m). between the current and previous cross section . Th is may indicate the need for additional cross sections. Warning : During the standard step iterations , when the assumed water surface was set equal to critical depth, the calculated water surface came back below critical depth . This indicates that there is not a valid subcritical answer. The program defaulted to critical depth . Location : River: RIVER-1 Reach : Reach-1 RS: 927 Profile : PF 1 Warning : Divided flow computed for this cross-section . Location: River: RIVER-1 Reach : Reach-1 RS : 632 Profile : PF 1 Warning : Divided flow computed for this cross-section. Warning : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0 .7 or greater than 1 .4 . This may indicate the need for additional cross sections. Location : River: RIVER -1 Reach : Reach -1 RS : 387 Profile : PF 1 Warning : Divided flow computed for this cross-section. Warning : The conveyance ratio (u pstream conveyance divided by downstream conveyance) is less than 0 .7 or greater than 1.4. This may indicate the need for additiona l cross sections . Location : River: RIVER-1 Reach : Reach -1 RS : 215 Profi le: PF 1 Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4 . This may indicate the need for additional cross sections. Warning : The energy loss was greater than 1.0 ft (0 .3 m). between the current and previous cross section . This may indicate the need for additional cross sections . Location : River: RIVER-1 Reach : Reach-1 RS : 0 Profile : PF 1 Warning: User specified water surface is not poss ible for the spec ifi ed flow regime . The program used critical depth as the startin g water surface. g c: .Q iii > Cll w 290 285 280 275 270 Plan : Plan 05 11/24/2004 FEMA -Trib to Burton Creek ~-------------------RIVER-1 Reach-1 -------------------- 0 500 1000 / # 4 t....-.=---~~---- 1£:::.:-.· .. 1500 2000 2500 3000 Main Channel Distance (ft) 1 in Hor iz . = 400 ft 1 in Vert. = 4 ft Legend WS PF2 WS PF 1 Ground §: c .Q Oi > QI w 285 280 275 270 0 1 in Horiz . = 50 ft 1 in Vert . = 3 ft 100 FEMA -Trib to Burton Creek Section 387 200 Station (ft) Plan : Plan 05 11/24/2004 300 400 Legend WSPF2 WS PF 1 Ground • Bank Sta Encroachment g c: 0 ~ > Q) Ui 285 280 275 270 0 1 in Horiz. = 50 ft 1 in Vert . = 3 ft 100 FEMA -Trib to Burton Creek Plan : Plan 05 11124/2004 Section 510 200 300 Station (ft) 400 Legend WS PF2 WS PF 1 Ground • Bank Sta Encroachment I Proposed Conditions Model (P.C.M.) Plan: BCT-RCB RIVER-1 Reach-1 RS : 387 Profile : PF 1 190.00 285 .00 160.00 203.82 127.20 65 .65 203 .82 127.20 65.65 367 .03 477.40 96 .57 222 .50 ···rB~wldtff rn t +•n •••m.•••••••• 136.35 33 .00 53 .15 1.80 3.75 1.47 1.49 3.85 1.24 13669.5 ·•·cl:it.\h <~r~n:::••••••••••••••rnn: 5331 .7 6935 .0 1402.9 136.46 34.54 53.20 0 .44 1.09 0.37 0.80 4.09 0.54 2.84 2.41 0.15 0 .01 •cum:•sP.a~cre~)YH>••••:tr:.:·:· 1.98 1.08 0.15 Plan: BCT-RCB RIVER-1 Reach -1 RS : 493 Profile : PF 1 . 0 .065 64.00 107.00 64.40 . 196.99 88 .76 442.82 47.24 941 .00 81 .71 92 .00 43 .31 4.78 6 .09 15015.4 32 .35 •MinCh •!:f(ft)•f••••••:•::•••• 1.49 7.13 3.05 3 .11 0.24 2.14 1.23 0.22 Plan : BCT-RCB RIVER-1 Reach-1 RS : 512 Culv Group : 10X7 RCB Profile : PF 1 5.33 5.1 5 215 .24 :·cUiV..iilV:Ei:iJ~Hif:•.:::.••• •t• 268 .70 268 .50 0 .02 0 .06 0 .22 281 .76 I ~ Plan : BCT-RCB RIVER-1 Reach-1 RS : 532 Profile : PF 1 .•$.•G \gie~(lt}U)••)• 275 .24 •d;; •••.••••••••• \··> • i/•4~~¢9: ····•H ¢~aH~eJ:···•·•w.9@¢ij• o .34 •Wth1Nat.•••::··::::·•·••··:·:n:• o .065 211 .61 FIOWAreafrsa nt:• ••••tm 200.91 0 .003682 :Ai'e~•t~fi).•••wr:••••••••••• 128.os 297 .88 941 .00 f19W<~f~>••:::: •••••· ···· ···· 941.00 211 .09 toP.WldtiHtt ff •:: n ••••· ••• 89.22 55.oo Veif9iliitrusW•••••·•····· 40.oo •·Wetled:Pehtit>+•.r:t+r•·•·• MindhEi(iij Y••:•···· 3.15 2 .22 Plan: BCT-RCB RIVER-1 Reach-1 RS : 554 Profile : PF 1 w:s Jt;JiWlftk ••········· 275 .34 •R~hL~{{Aj ?••••••><•• 20.00 "'===""'=~""'===+-~~ crtt:w1s.nnn::••·•••••·· #iow.AreaisanW••••t••.• 161.44 •$.•t:;:'$i~P..E!tMt>•L•••·• 0 .004-182 Ate~tt;qiik •••nr··•••••••• 167.44 Plan : BCT-RCB RIVER-1 Reach-1 RS : 632 Profile : PF 1 281 .64 104.40 1.68 1.60 4254.6 104.64 0.44 0.74 3.22 2 .26 32 .41 1.43 6.67 3.45 1.30 20.00 146.08 146.08 499.92 41 .00 3.42 3.56 7551 .8 42.95 0.93 3.18 3 .55 1.32 40.00 84.91 66 .86 0.30 0.28 20.00 108.67- 108.67 159.44 83 .33 1.47 1.30 2408 .5 83 .37 0 .36 0 .52 0 .34 0 .31 :$::$;gi~~(~}H:!•• •)• 215.81 •~1~~~i ·•:\?••H ·H:.:\.: :.:::t•••4~~¢B: ••••••••:Gl:lah~el: H••·RT9h~¢i3 0 .11 wtHNai:~••r:•:•n• ······· 0.080 o.065 0.080 215.76 •R~C.frt.ei.ii@ H •? \t•••· 106.00 122.00 115.00 ·•c~i.Wi s itn>rn••···••·••·······• •#iowA!eS:tsCl •.ni i•.•t••.•••>• 251.02 89.36 59.80 0 .002942 A.re.¥tc~qfi f ••••·•••·•·• ·r ·• :n 251 .02 89.36 59.80 316.09 78 .46 15 .00 40.12 2.32 •Av&Vei Uriis)••<>•••r+••• 2.13 3 .54 1.31 5.96 1.49 5828.0 1446.7 114.08 weue et.Pehci:O: •·• •••••••·• 88.53 18 .55 40 .23 267 .20 0 .53 0.88 0 .27 1.30 1.13 3.13 0 .36 0.41 3.74 3 .88 0 .56 •cat •EL¢$$(ii.j U•••••••·· 0.00 2.49 1.40 0 .47 HEC -RAS Plan : BCT-RCB River : RIVER -1 Reach : Reach -1 < R.e~C:~ • R iv~r $.i~ •· •n Prii fit~• gJ-9i~i ·.•• • Miri ¢~£i •• W:$J ~rE!\i :ci ~W.l $'. ~:$;~i~v •• . t ~; $.~~ • Ve1 ¢h~1 •.: FlQ'.VWre.~ i ••t ii ifWi l:lth •: Ffo®~#¢tit • H H • . .......... ····· • (t:@ .... (rt) /.. •• Hill /(rti • @ H < • Wrt F /(rt t$F • •• .. :{$fn) • •<mu < n . / Rea ciJ.ij HT 0. •:: • Pit t <>• 941.00 269 .60 270 .73 270 .73 271 .12 0 .071266 5 .83 199.66 255 .52 1.06 Reacili1 ••••••• q . <• ~ 941 .00 269 .60 21 1.11 211 .11 211 .84 0 .059206 6 .80 146.06 110 .00 1.02 ······· ..... 941 .00 268 .00 273.47 271 .96 273.52 0 .002380 2 .19 574.60 287 .43 0 .23 941 .00 268.00 274.35 274.44 0 .002427 2 .60 396.20 114.00 0.24 R~~~ti"( 941 .00 268 .00 274 .22 274.35 0.004739 3 .75 396.67 222 .50 0 .34 R~~~Hff •••••: 387 •• H P:F2 H 941 .00 268 .00 275.16 275 .35 0.004418 3 .95 290.03 79 .00 0 .32 941 .00 268 .50 274.59 271 .46 274.94 0 .003927 4 .78 196 .99 217 .03 0 .34 R¢~~lfl [ ~~..:: \ • P~~ Y • ...... . 941 .00 268 .50 275.47 271.46 275 .74 0 .002506 4 .17 225.41 92 .00 0.28 ' .. :\ ••••• R elfoti~F ~~~,;.;µ;;;;.;:;;~1-~c~u~lv~ert+-----l------J.-----J.-----J.-----l-----l-------t------J.------.j ~·~~~@±2++~2±¥R:H#~*f-~--1r--~-t-~~-t-~~t--~-+~~-t-~~--+-~~t--~--f~~----i ~"""'''.±IITIS .. 941 .00 268.70 274 .90 271 .67 275 .24 0.003682 4 .68 200 .97 211 .09 0.33 R¢~~hW • PF:i nr•• 941 .00 268 .70 275.69 271 .67 275 .96 0.002472 4 .15 226.49 92 .00 0 .28 ....................... :•:·:·: ·::.:::::···'········• .................................... ·········· · R·.·e··a··c···"'·······.·: •. :· ::•.•::: ..,.,..,·)}})••·•·•·•·••• oc:4 •••••·•••·••'•·•••••·• l:r.:•.·.·.:·:::::·:. -.,.-_--.;.::·:·:·:;:::-:;:::-:::-: f:'.~'.:'.='::::::::.:::::·:<::: ::::::::::.:::::::::::.::: ....................... ....................... ........ .. ············.·······•· ... ···· 941 .00 269.00 941 .00 269 .00 941 .00 267.20 941 .00 267 .20 866.00 270 .00 866 .00 270 .00 Culvert 866 .00 271 .10 866.00 271 .10 866 .00 274.50 866.00 274.50 866 .00 277.20 866 .00 277.20 275.34 275 .46 0.004382 275.77 276 .06 0 .007602 275 .76 275 .87 . . 0 .002942 276 .44 276.56 0.002491 276 .43 276 .51 0.003241 277 .21 277 .49 0.006070 277.36 274.51 277.38 0 .000692 279.97 275 .34 280 .03 0 .000835 280 .22 280.22 281 .09 0.027390 280 .80 280 .80 281 .74 0 .026727 281 .86 281 .90 0 .001428 282 .40 282 .43 0.001062 3 .42 422 .19 228 .74 0 .32 4 .66 227.14 66 .00 0.41 3 .54 406 .18 143.37 0 .26 3 .50 369.21 85.00 0 .24 2 .99 482 .94 . 280.94 0 .28 4.47 213.20 53 .00 0 .39 1.56 841 .21 292.63 0 .13 2 .33 474.02 91 .64 0 .16 8 .94 159.58 110.73 0 .79 8 .77 136.17 65 .00 0 .72 2 .26 642.41 263.99 0 .19 1.81 594.88 160.00 0.15 R¢~~h~f H/ f ®4 H H pp•2.H// ·• ::.. T•• ~~"'t-~~~r-~~----t~~~---t~~~-r-~~~-r-~~~-r-~~~r-~~--;~~~--;~~~~--i Reachi F :. 1504 ; • P.F.H H R~~~f:l~fr H 1 ~ L P f ~F ••• ···· · ••••••n•.•••nn.:•·· .... ... "' ...... , .. ........ ........ ..::: .. : . ..... 429 .00 278 .40 282 .04 429 .00 278 .40 282 .52 Cu lvert 282 .10 0 .003693 2 .10 230.95 159.36 0 .27 282 .55 0 .001561 1.59 302.94 149.70 0 .18 HEC -RAS Plan : BCT-RC River : RIVER -1 Reach : Reach-1 (Continued) R~~~h~fr l'"'Vft r;;r; I : : < R ¢~~h ~i H ®41 H PF~ HL> ' ·•·• <::r r •·•••··••'·••·•·+••<• :·.+··m ::: • ··',.,,. 290.73 286 .37 286 .69 286 .91 287 .96 291.80 292 .65 0 .000503 1.50 0 .000528 1.55 I 0 .000513 1.64 0 .002018 2 .73 0 .001379 2.50 0 .003122 3 .44 0 .009497 5 .23 0 .021343 6.83 0 .012072 5.06 0 .005153 4 .00 373.89 138.34 0 .12 378.98 115.32 0 .12 157.14 27.00 0.20 248 .39 95.08 0 .20 126.83 24.00 0.26 121 .61 65 .21 0 .47 62.84 14.00 0 .57 107.72 72 .04 0 .52 119 .06 35 .00 0 .36 HEC-RAS Plan : BCT-RCB River : RIVER -1 Reach : Reach-1 : ~~~9h Y ~ivef:$.i~: •' WiC>fti~: •·•• )$:G ~~,~~ •• iJv:;$~):1~: H V~IH~~~ •••• ffqfo Ji)~~· ¢~e til# .. • /p t~1(: •· Qyh@h~j ••. :q/Rl9~f j •••'t.o.PWi®i U I>•·• •• , .... '(••• '•I }(iff ... , ... ,.,. •@•·····. (f:t)/H H (f't) • • (rt) ? ]cf~>•:: .• {cf$) ?\ :/:{¢f$)/} <••••<l'tL•. Read1:'.E .. lo ;::, :: ..... PF l •<••• •• 271 .12 270.73 0 .39 458 .66 475 .26 7 .08 255 .52 Reach.X: Ho :: ••• •• •f P.F2 \ ••• :: 211 .84 211 .11 0.61 129.34 811 .66 11 o.oo ...... ····•••••<••••1::::::;:, ••••::::/::::: ••••·•>••••··••··••• ••·•···•><•.••·•r ••••·• n•r•·••·•i R~~~l:i.;1 • U• !$~ H ,., ,. • PF~ < , ••• • •• Rea ~HW • .. ?fa .... ?• ..... . R~~cMF • !): ·Z R~~chW / ..... ••••••>n<•• •,.,,., PF i >••••••••·••· 273.52 274 .44 274.35 275 .35 274 .94 275 .74 Culvert 275 .24 275 .96 2'75 .46 276 .06 273.47 274.35 274.22 275 .16 274.59 275.47 274.90 275 .69 .2.75 .34 275 .77 0.05 0 .09 0 .13 0 .19 0 .35 0 .27 0 .34 0 .27 0 .12 0 .30 2 .33 2.48 0.77 0 .83 0.42 0 .33 0 .08 0 .08 0 .07 471.54 0 .12 213 .83 0 .07 367 .03 0.08 315 .45 0 .18 0 .06 0 .13 281 .64 0.02 179.94 464 .84 727 .17 477.40 625 .55 941 .00 941 .00 941 .00 941 .00 499 .92 761.06 4 .61 96 .57 159.44 275 .87 275.76 0 .1 1 0.41 0 .00 546.45 316 .09 78 .46 287 .43 114.00 222 .50 79.00 217 .03 92.00 211 .09 92 .00 228.74 66 .00 143 .37 ~~a ~~1, ·::•.: . P.K-:U:>·:<•:>:: ====21=6=.5=6:====2=1=6 .=44=~=====0 .=12~~=====0=.4=1~=======0 .=04~~===4=1=0 .=64~=====3=48=.8=1~====1 =21=.49=~=======~ R~~¢i'H :: ~tL •::: ><t!ltW •••:: 85 .00 276 .51 276.43 0 .08 0.63 0 .01 500.58 365.42 280 .94 277.49 277 .21 0 .27 0.86 0 .06 196.97 669 .03 53 .00 .~~~~~~~T! .... • ~~·1 ::~ef:'.2 <?•',.t ··· . •• / ~ 4 *'Ft----+------l-----l-----t------l-----+-----t-----t------l R~~MH >< ·~~ ,, ... ········· :·: .: Re ach~C •• U60 n>• PF2 (/ : .. .... . ........ :::::':::::::::: .::::::::;;;::::::;:;::; ... :::::::::.:::::: R~~~M( / ··• P:F1 U •< •' ITT~~~~ i~m.:: ::;.;:.:;; R~~~H.-'~>• 1:®4 :• ........ •PF•~>'···· .,,,,,., ·· · ·t•••'• •nu::•'•::: ···· Culvert 277.38 280 .03 281 .09 281 .74 281 .90 282 .43 282 .10 282 .55 Culvert 277 .36 279.97 280.22 280.80 281.86 282 .40 282.04 282 .52 0 .02 0 .06 0.87 0 .93 0 .03 0 .03 0 .06 0 .03 0 .30 0 .37 0.64 0.52 0 .19 0 .12 I 0 .34 0 .35 0.17 0 .18 0 .01 0 .00 721 .37 500.04 116 .48 227 .25 70 .96 0 .00 I 143 .23 342.66 568 .35 638 .75 163.92 147 .97 370 .90 353 .50 1 .39 23 .30 181 .17 631 .13 718 .03 58.10 75 .50 292 .63 9~.64 110.73 65 .00 263 .99 160 .00 159 .36 149 .70 HEC -RAS Plan : BCT-RCB River : RIVER -1 Reach : Reach-1 (Continued) < R~~C:h / /~iv~ $.i~ U : ere@~ s.!C~; e1~~: • WJ~J1:1~v : y~1 H~~d. Fi~fo ~~~/ P ~~ ~o.~u :' 9 ~~1r H <:i ~t#iiii~i ~ Rli;J~f U • tO.;>V\iiC!fu v ,, ,, I < +> ••••. ,. • >Aili :n <rtF n • > en> :: H"L > • t ii) : , a~M • • ,, ::• t~t~F : +:n¢t$F•?• :n • @t •••:n• React1 ic u • 1ta::t ::::::::.u: BFt+ 286.20 286.11 o .o3 200 .83 103 .66 34.51 168 .17 ReacW.:1 •> 111a2 , , IP!""' 286.26 286 .23 o .o3 303.30 87 .87 37 .83 138 .34 ,,,,,.,,,,, :: :n•:n ... :::.••••• ;:::::,.,, ... •:::·········,, .. 0 .08 0 .00 28 .78 146.38 115.32 0 .15 0 .03 27 .00 R¢~~rH >< 2041 . .. . , .. 286 .3 7 286 .30 0 .07 0 .07 0 .02 18 .1 8 297.94 112 .87 95 .08 R~ij~J:M + 2o4t Y PF~/ 286 .69 286 .51 0 .18 0 .22 0 .03 1.77 427 .23 24 .00 ..... ::::: : } :: 286 .91 286 .61 0 .30 0.43 0 .12 66.94 282 .10 79 .96 65 .21 287 .96 287 .24 0 .72 1.00 0 .27 429 .00 14 .00 291 .80 291.45 0 .35 4 .86 0 .02 47 .36 373.14 8 .50 72 .04 292 .65 292.41 0 .23 4 .53 0 .15 21 .24 391.26 16 .50 35.00 Errors Warnings and Notes for Plan : BCT-RCB Location : River: RIVER-1 Reach : Reach-1 RS : 2691 Profile : PF 1 Warning : The energy loss was greater than 1.0 ft (0 .3 m). between the current and previous cross section . This may indicate the need for additional cross sections . Location : River: RIVER-1 Reach : Reach-1 RS : 2194 Profile : PF 1 Warning : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4 . This may indicate the need for additional cross sections. Location: River: RIVER-1 Reach : Reach-1 RS : 2041 Profile : PF 1 Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. Location: River: RIVER-1 Reach : Reach-1 RS : 1504 Profile : PF 1 Warning : Divided flow computed for this cross-section . Warning : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. Location: River : RIVER-1 Reach : Reach-1 RS: 1384 Profile : PF 1 Warning : The velocity head has changed by more than 0.5 ft (0 .15 m). This may indicate the need for additional cross sections. Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. Location: River: RIVER-1 Reach : Reach-1 RS: 1160 Profile : PF 1 Warning : The energy equation could not be balanced within the specified number of iterations . The program used critical depth for the water surface and continued on with the calculations . Warning: The velocity head has changed by more than 0.5 ft (0 .15 m). This may indicate the need for additional cross sections . Warning : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0 .7 or greater than 1.4. This may indicate the need for additional cross sections. Warning : The energy loss was greater than 1.0 ft (0 .3 m). between the current and previous cross section. This may indicate the need for additional cross sections . Warning : During the standard step iterations , when the assumed water surface was set equal to critical depth , the ca 1culated water surface came back below critical depth . This indicates that there is not a valid subcriti cal answer. The program defaulted to critical depth . Location : River: RIVER-1 Reach : Reach-1 RS : 927 Profile : PF 1 Warning : Divide-;:: flow computed for this cross-section . Location : River : RIVER-1 Reach : Reach-1 RS : 632 Profile : PF 1 Warning : Divided flow computed for this cross-section . Location: River: RIVER-1 Reach : Reach-1 RS : 532 Profile : PF 1 Note : Multiple critical depths were found at this location . The critical depth with the lowest , valid, ~nergy was used. Location : River: RIVER-1 Reach : Reach-1 RS : 493 Profile : PF 1 Note : Multipl~ critical depths were found at this location . The critical depth with the lowest, valid , energy was Ul.'ed. Location: River: RIVER-1 Reach : Reach-1 RS : 387 Profile : PF 1 Warning : Divided flow computed for this cross-section . Location : River : RIVER-1 Reach : Reach-1 RS : 215 Profile : PF 1 Warnin g: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0 .7 or greater than 1.4. This may indicate the need for additional cross sections. Warning : The energy loss was greater than 1.0 ft (0.3 m). between the current and previous cross section . This may indicate the need for additional cross sections. Location : River : RIVER-1 Reach : Reach-1 RS : 0 Profile : PF 1 Warning : User specified water surface is not possible for the specified flow regime . The program used critical depth as the starting water surface. g c: .Q iii > Ql jjJ 290 285 280 270 FEMA-Trib to Burton Creek W/ 3-10X7 RCS Plan : Duplicate Effective Model+3-10X7 RCS 11/24/2004 IE---------------------RIVER-1 Reach-1 -------------------- / __,./' t--===---="'=='-..,~---- ~~ ~/ ~Ji ----...... --... 0 500 1000 1500 2000 2500 3000 Main Channel Distance (ft) 1 in Horiz. = 400 ft 1 in Vert . = 4 ft Legend WS PF2 WS PF 1 Ground g c .Q iii > QI iii 285 280 275 270 FEMA-Trib to Burton Creek W/ 3-1 OX7 RCB Plan : Duplicate Effective Model+3-1 OX7 RCB 11 /24/2004 Section 387 --------------08 --------------+--.oss -+-·---------.08 --------~ ~~L-eg-en-d-~ 0 100 200 300 Station (ft) 400 WSPF2 WS PF 1 Ground • Bank Sta Encroachment 1 in Horiz . = 50 ft 1 in Vert . = 3 ft FEMA-Trib to Burton Creek W/ 3-10X7 RCS Plan : Duplicate Effective Model+3-10X7 RCS 11/24/2004 Section 493 l<E--------------.03 ----------------4-----.055 -----------.03 --------+1 g c: 0 ~ > Q) w 285 280 275 270 0 1 in Horiz . = 50 ft 1 in Vert . = 3 ft r l I ' i i ' 100 200 300 400 Station (ft) Legend WSPF2 WS PF 1 Ground -··········"'············ lneff • Bank Sta Encroachment g c: .Q iii > Ql iJj 285 280 275 270 0 1 in Horiz . = 50 ft 1 in Vert . = 3 ft FEMA-Trib to Burton Creek W/ 3-10X7 RCS 100 Plan: Duplicate Effective Model+3-10X7 RCB 11/24/2004 3-10X7 RCB 200 300 Station {ft) 400 Legend WSPF2 WSPF1 Ground ···········A ············ lneff • Bank Sta Encroachment g c .Q (;j > QI w 285 280 275 270 FEMA-Trib to Burton Creek W/ 3-10X7 RCB Plan : Duplicate Effective Model+3-1 OX7 RCB 11/24/2004 3-10X7 RCB ~-------------.08 --------------~--.0 55 .oa -------~ 0 00 300 400 Station (ft) 1 in Horiz . = 50 ft 1 in Vert . = 3 ft Legend WS PF2 WS PF 1 Ground ......................... lneff • Bank Sta Encroachment g c: 0 ~ > Q) w 285 280 275 270 FEMA-Trib to Burton Creek W/ 3-10X7 RCB 0 100 1 in Horiz . = 50 ft 1 in Vert . = 3 ft Plan : Duplicate Effective Model+3-10X7 RCB 11/24/2004 Section 532 200 300 Station (ft} 400 Legend WSPF2 WS PF 1 Ground ·-----------·------------ lneff • Bank Sta Encroachment g c: .!2 iii > Ql w 285 280 275 270 FEMA-Trib to Burton Creek WI 3-1 OX7 RCS Plan : Duplicate Effective Model+3-1 OX7 RCS 11 /24/2004 Section 554 = Section 510 Effective Model ~~~~~~~~~~~~~~~~~~~-.08 ~~~~~~~~~~~~~~~~~~~-)olof-~~.os5 -~->~l<1o--.oa--->j ~-----------------.---------------------------------------.... ·----------'------------..... --- 0 50 100 150 200 250 Station (ft) 1 in Horiz. = 30 ft 1 in Vert . = 3 ft .--,Lo-eg-e-nd-~ WS PF2 WSPF1 Ground • Bank Sta Encroachment Ja{)f-DIJJ 4·,00 KLING ENGINEERING & SURVEYING ///? (/f-3lo 4101 Texas Avenue, Suite A Bryan , Texas 77802 TO: City of College Station Development Services ATfENTION: Alan Gibbs WE TRANSMIT: D Under Separate Cover ./Enclosed VIA : DMail ./ Messenger D Federal Express D Lone Star Overnight DUPS D Special Courier D Picked Up By Your Office NO . Consulting Engineers • Land Surveyors Tel. 979/84~212 Fax 979/846-8252 P.O. Box 4234 Bryan, Texas 77805 DATE: November 9, 2005 ~I I z /o I 05 PROJECT NO.: PROJECT NAME: Gateway Ph. 4 Creek Crossing REFERENCE: THE FOLLOWING: D Prints D Copies D Originals D Plat D Field Notes D Plans ./Report D Estimate D Cut Sheets D Computer Printout D File D Contract D Other -See Below DESCRIPTION FOR: ./Your Review & Approval D Your Review & Comment ./Your Review & Distribution D Your Review, Revision & Return D Your Signature & Return D Your File and/or Use D As Requested By: D Please Acknowledge Receipt of Enclosures D Please Return Enclosures To D Copies Of This Letter Of Transmittal Sent To: r.f Drainage Documentation Letter / ( ce.lC...1>-.lAL 5ur:YA 'rf7i-L A/oT M/<Jb ""K. I ii c..At0 6. ( 13BS I{ /-zq f oc::.. ·-iiud /<_ A;J 4DD t rr0N4L ~0.J. '\ ( J 7 D ,,....Jt c....~r--f r-.1\JSrnc.x;.,YT~ kAAJ~ If Enclosures Are Not As Noted Please Notify Us At Once. Signed : Fred Paine --- KLING ENGINEERING & SURVEYING Consulting Engineers • Land Surveyors 4101 Texas Avenue, Suite A 'Bryan, Texas 77802 Memo: B.J. Kling, P.E., R.P.L.S. S.M. Kling, R.P.L.S. Telephone 979/846-6212 Fax 979/846-8252 To : City of College Station -Development Services Development Engineering From: B.J. Kling l~-bt-00 4:00 04-~ Post Office Box 4234 ~ Bryan, Texas 77805 November 8, 2005 Re : DP-Gateway Phase 2-4 Creek Crossing, Case #04-00100036 Revised Culvert Configuration The purpose of this memo is to document the water surface elevation for the Tributary to Burton Creek before and after proposed construction of the culvert crossing. The previous submittal provided for 3-1 O'x?' RCB culverts. The current submittal adds 2-48" RCP culverts to the crossing to meet the "Zero Rise" floodway requirement. Current and future development within the area has and will require the placement of fill in the floodway fringe as allowed by FEMA. Initial CLOMR-F(s) have been filed and accepted for this action . A final LOMR-F , which will incorporate as-built conditions of fill placement and culvert construction , will be submitted upon construction completion Attached to this memo are the following : input for key cross sections , summary result tables , and graphical representations of the water surface profiles and key channel cross se ct ions. Documentat ion for both the duplicate effective model (DEM) and the proposed cond it ions model (PCM) are included . Additionally, accompanying this memo is a disk containing the HEC-RAS computer files used in the analysis . The duplicate effective model is based on a LOMC effective October 30 , 2003 (FEMA case no . 03-06-102P). The proposed conditions model is a copy of the effective model with the necessary additional cross sections inserted to analyze the proposed culvert . The sections at the creek crossing are based on a topographic survey conducted in March of 2004. This data showed the creek flowline to be approximately 1' higher than the flowline interpolated between secti ons in the DEM . It should be noted that River Station 510 on the DEM was renumbered to River Stat ion 554 on the PCM . The renumbering is based on the actual stream channel reach length defined in the effective model. As shown in the summary results, the addition of the 3-1 O'x?' RCS and 2-48" RCP culvert structure does not increase the base flood elevation above allowable floodway water surface elevations . The following table is provided for reference. Results for DEM River Station 387 512(Culvert) 510/554 632 Q total (cfs) 941 / 941 NA 941 / 941 941 / 941 Q channel (cfs) 479 .9 / 627 .2 NA 543.3 / 756.0 323 .0 I 345 .8 WSEL (ft) 274 .2/275.1 NA 275.0 / 275.9 275 .6 / 276 .5 Depth of Flow (ft) 6 .2/7.1 NA 6 .0 / 6.9 8 .4 / 9 .3 Results organized as follows (DEM floodplain I DEM floodway) Results for PCM River Station 387 512(Culvert) 510/554 632 Q total (cfs) 941 / 941 941 / 941 941 / 941 941 / 941 Q channel (cfs) 477 .41625.6 941 / 941 500 .2 I 758.1 316.5 / 347.1 WSEL (ft) 27 4.2 / 275.1 275 .1 / 275 .8 275.3 / 275.9 275.8 / 276 .5 Depth of Flow (ft) 6 .217 .2 5 .4 / 6.1 6.3 / 6 .9 8 .6 / 9 .3 Duplicate Effective Model (D.E.M.) Plan : Plan 05 RIVER -1 Reach-1 RS : 387 Profile : PF 1 .. . ..... i;:.c:;, .Elev (ft) : ··· VeiHeaa t~)•••(•••••····· 0 .14 Wf iPlat: •••/(\/,,. . 0 .080 o.065 o.oao W.S /Elev(ti)•.··· 190.00 285.00 160 .00 •cmWs Hn>•••••••·•·····• 200 .81 126 .47 64.47 200.81 126.47 64.47 :c::i T!il8t{i:ifs)i••••••••••··· 941 .00 . ~19w(etsF •: •:: ...... . 365 .51 479.88 95 .62 top Wfdth (fi> •.• ·:: •• • • • • • 135.20 33 .00 52.73 vei t-Otai tft.is~U••••••···· 1.82 3.79 1.48 1.49 3.83 1.22 : G!i~. T'&ai {cts) •: • • • • • • 13468.9 ¢on\ii (efs >H ···· ··· · 5231 .7 6868 .7 1368.6 •Leti9th'Wt&(rt}::.•:•••• 135.31 34.54 52.77 MinChEi tni •••••••······ 268 .00 silear iibisa nF .... 0.45 1.12 0.37 A:if)ila / <••••••·••···· 0 .82 4.23 0.55 • n~~ toss (tt}: • • • • • • • • • • 0 .18 cuiiiVoii.ime(iieie.n>H 2.83 2.41 0.15 o .o3 : cum sA(a&esi ... 1.97 1.08 0.15 Plan : Plan 05 RIVER -1 Reach-1 RS : 510 Profile : PF 1 {GA~leV:(tt)••••••••· 275 .20 Elemeri t < ··· · · ··•·•·•••teft 'OB: .. · ............ . Ctj~ii~~ ••••••RightOI3 Vei Heiid(~F H•• ••. 0 .17 Wt ii ~YaL .•••··••••········ 0.080 0 .065 0 .080 275.03 .Reach 'l.eti ; (ftr •••••••••·•••·•·· 124.00 167.00 124.40 •c1ttvis Hn>••·•••••••··•· :F'iowA'Tea•t$ani ••••••••••·•••·· 135.28 133.32 84.33 0 .007019 135 .28 133.32 84.33 •qt9wtets)t:·::••·•••·•• 941 .00 flow<~rs>H •••• ······· 253 .38 543.27 144.35 J dpWidth(tt)••··········· 216 .28 i ttipwtdtii(rtr ....... ·· 102.22 41 .00 73 .06 1.87 4.08 1.71 Ma)( Chi Oj:ittl (~) ' 1.32 3.25 1.15 •¢onv_. Totai (cts)••••:••· 11231 .6 . conv . (cfs) · 3024.3 6484 .4 1723.0 J;.engiiiWttL(fi):;· 147.43 !WettedPer; (Ii) 102.44 42 .95 73 .09 MtnthE:1 <ttr •••••·•··· 269 .oo 1 shear ~bisQ ft) ....... . 0.58 1.36 0 .51 1.54 i sfreani ' fioweHib1tt s) : 1.08 5.54 0 .87 r. rcln toss <ft>.. . ·. o.86 i cuin voiume (iicrii.tt) • 3.31 2.91 0.36 ¢ & E'LoSs (ft) ..... . 0.01 cum sA (acres ) · 2.31 1.22 0.33 Plan : Plan 05 RIVER-1 Reach-1 RS : 632 Profile : PF 1 ... .. . . .. ············· ... 215 .75 ·e1emeiit · • ~~~qs ••• ~ti~h~e! • •••.• RiQht0.B Vei Head (ft> ···•·· ·· · 0 .12 Wt :riNaL T ••••••••·••······· 0.080 0.065 0 .080 275.63 R~chL!iii , (fi> •• .... 106.00 122.00 115 .00 :crtt:ws :tn>·•••••••••••·· • F'10W. .A.rea• isa ni •: • • •·• • • • • · • · • · 245 .63 87.39 54.67 245 .63 87 .39 54.67 941 .00 f:ic:iwM~f • ••• 543 .67 323.04 74 .28 TOP Wlath (fi) • • • • • • • • • •. 85.26 15.00 38 .02 veit<ltai(ftls>••••••••••• 2.21 3.70 1.36 2.88 5 .83 1.44 16357 .6 :co:n.;;; Ws> ••••••••••••••••• • 9450 .8 5615.6 1291 .3 t en9ihWtct <ft> .. •·••··· 85.51 18 .55 38 .13 MlnchE:i(ftJ ··· 261 .20 si1ear0bisqttr ·· 0.59 0 .97 0 .30 1.30 stream f>ower: (ibitt s) 1.31 3 .60 0 .40 F'rciri Loss (ft) 0 .53 cuiiiVoii.ime(iiciil-rt) ... 3.78 3.21 0 .55 C & Elm {ft) '. 0.01 . Cum sk(~cres) •·• 2.54 1.30 0 .48 HEC-RAS Plan: Plan 05 River: RIVER-1 Reach: Reach-1 I Rearr I River Sta .. , .• .Profile ' r a;,:;;i-~-Miri(~)h El· I· W.~~;lev I Cri~~.S.' E.~~~~P.e .•• v~~~nl< . Fi:~e~ Tcip(~i~~; FfoU<i~ #.~hi ' Reach-1 O PF1 941.00 269.60 270.73 270.73 271.12 0.071266 5.83 199.661 255.521 1.061 Reach-1 ·. • 0 PF2 •··· 941.00 269.60 271.17 271.17 271.84 0.059206 6.80 146.06 110.00 1.02 Reach-1 215 · · ~ -~~!_O~t-~8 ~~--3_!~.~?1=-=-3_?!.~1~_E~~3_ __ 0.002380 2.19 574.60 287.43 0.23 Reach-1 215 PF 2 941 00 268 00 274 35 274 44 0.002427 2.60 396.20 114.00 0.24 --------------------------------------------~~! :Q~L_. __ ._368.0Q 268.00 ~--;;ach:!_~? ___ J~~-2 ___ : 941.00 --.. -1 . -----1 1------1---------+-------1---------' 275.13 214 ?~ L ______ J __ 3-X~ ~~ L~ ~~~1 J ___ ~ ?~\--391 1~ j 220 921 o.341 3.99 287.47 79.00 0.32 --·-----------·----275.32 0.004537 Reach-1 1387 IPF 1 -----1 l-··-·--· --·-·-·---·-----~eac~J510 =lPF 1 -!--~~1:~~1-_ ~~~ool_ 3_7~~~1--1-~ 3_?~:3~t o:00?~!~.1 -~--~:Q~,---352:92 __ 216.28 0.40 Reach-1_J~ · PF2 9~.0~ ___ 269.00 2?~·~~ ___ ._. ___ 3_?6.2.Q 0.006607 4.45 237.73 66.00 0.39 ----+-------·! --1------1-Re~~~~··. 632 ·· · ·.··.: 1PF 1 .. ··•. I 94!~~1---~~!.20, _ ___3_?~:~~1----275.75 00033091 3.70[=387.69 138.281 0.27j Reach-1 632 : PF 2 ::.• · 941.00 267.20 276.54 276.65 0.002335 3.42 377. 16 85.00 0.23 -----··-----: ----···--.. ---------·-----------Be~ch~1 .•. 927. · PFf --~66:Q~r-·-_ 270.001--2?~~il. -----[ 276461 ooo~~~1 ___ 31Q.D467.45I 276.721 0.291 Reach-1 866.00 270.00 277.26 277.53 0.005848 4.42 215.75 53.00 0.38 -------------Reactiif 1952 : H f > ... . .. . . Culvert . .......... :::::••:•·I<• .. •·•::········· .. Reach-1 1990 • IP:F 1 I 866.00I 271101 277.351 274.51 277.37 0.000702 1.56 837.06 292.48 0.13 IRe~~h-1, l.T9:P •••·• lm~r ,.... l 866.001 211101 279.97µ534 280.03 0.000837 2.34 473.76 91.60 0.16 R¢~ch~f: ' IH6o IPrF > l 866.00I 274.501 280.221 280.221 281.091 0.0273871 8.941 159.591 110.741 0.79 tReach~1 · 11150•' IPFi' : .... ·I 866001 214.501 280.801 280.801 281.141 0.0261211 8.111 136.111 65.001 0.121 l 'I ·. ' ... ······:.·1 · ' ... ... L I l I -·-L--1------t---+------+----t---------i !Reach~1 ·13e4 PF. t• ···. L 866.oo 2n.20 281.86L_ I 281.00 Reach-1 : 1504 · ·• ••.• PF1 . 429.oo 278.40 28204j I 282.10 o.003693 2.10, 230.941 159.361 0.2~ Reach-1 1504 ·· · f'F.2: • 43_~00 __ 278.40 __ 2~3_~3_j __ . __ . __ 282.55 0.00!561 ---~~ 302.94 149.70 0.18 ,_J __ , ____ _J _____ __J __ ·---1-------J 1-----1 JReach-1 j1643 I .... I Cu~vertJ__ ___ f_ ____ t.____ ----.l----1------+-----t-------1 Reach-1 RE?ac;h-1 '~;:~ •••.•. :i:;.~: .. ······><+· ....... · 429.001 279.001 2861~ 282.45 286.21 0.000499 1.49 413.66 168.48 0.12 429.00 279.00 286.23 I 282.45 286.26 0.000528 1.55 373.89 138.34 0.12 -----1-----------1 1------IReach-1 11953 ·· : IPF 1 ·.. • j 429.001 279.601 286.26 Reach-11953 .. PF2 =-429.~~=--~?~~~ =-= 286:3~:=-~--286.29 0.0005101 1.63 379.92\ 115.461 0.121 -·---.. -~86.4~[__.Q.0020~8 2.73 ___ 1~714 27.00 0.20 Reach-1 · 2041· .. IPF1 · I ~~~--28040t __ 286.30[--=J 286.38 0.001369 2.49 249.14 95.28 0.19 Reach-1 2041 PF 2 429~L.. 280.40 286.51 286.69 0.003122 3.44 126.83 24.00 0.26 -·-·---·---·---------·--------------·-· -----------------·------- ~H_E_C_-R_A_S_P~la_n_: _P_la_n _0_5 ~R_iv_er_: _R_IV_E_R_-~1 _R_e __ a_c_h _: R~ach-!JCo~~u _ed_~) ____ , ----~- r----R_e_ac--'h--1 +i 1,__R--'iv_e_r s_1--'a ---+~P~r_ofi~t1 _e ~·-+-··_a_T_o_1a_1 ---+_M_in'-.-c~ El w .s . Elev Grit w .s . · E .G . Elev · · E .G ~ Slope Vel Chnl . Flow Area •· Ti>pWidtfr A 'roUde #Chi r----t-,1 1__,.~~;.,..,.,~...,--~r-~(cf~)_· __ (~!__ ~(~_) _ >------(~) __ (~L (!![~)__ (ftls_) ·-1---'-'--'---1----'----'('--'n)=-----+---'----1 . .. .::::: .··:·1::::::: ... Reachif ' · ··· 2fg,(•••· <•••••PF·'{:··· .. ·· Reach"l · 21~ PF 2 •••··• •••• Reach-1 Reach-1 2691 2691 PF 1 PF 2 429 .00 281 .50 429 .00 281 .50 429 .00 287 .00 -----------------·-·- 429 .00 287 .00 ··----·- 286 .61 287 .24 ------- ---·----- 291 .44 290.73 ---·-----·-. ·- 292.41 ·-- --- 286.91 0 .009429 5 .21 121 .97 65.31 0.47 287 .96 0 .021343 6 .83 62.84 14.00 0 .57 ---------- ------·---------- 291 .80 0 .012130 5 .07 107.49 71 .93 0 .52 ----·--------·---·---··---------- 292 .65 0 .005153 4 .00 11906 35 .00 0 .36 -------·------------------··· ·------------ HEC-RAS Plan: Plan 05 River: RIVER-1 Reach: Reach-1 Reac~l River Sta. pr()file --£c;.-Ei~~--. ~W-.S-.• -E-fo-'1-.~-V-e_l_H_e-ad-.~·-F--rct_n_ Lo~s . c & E Loss . . •• a Left . a Chaiiiiel q Right .. fop\i(ijdth I (ft) -(ft) (ft) (ft) (ft) • ·. • (~fs) ··· (cfs) (cfs) (ft) .· · • 11--R_e_a_ch---1--1-0----+P-F-1-. --1--'~2'-71-.-12 --27D.73 ----0.39---·----~8.66 475.26 -7.08 255.52 Reach-1 •••·· 0 · · ···•··•· PF2 · 271.84 271.17 0.67 129.34 811.66 110.00 Reac11-1 · ·· 21s · p8==]·1 · •. __ 273.52 273.4?_C_Q:osl _____ 3_33C __ o:~~--411.s4I 464.84I 4.61 I 287.43I Reach-1 215 • PF 2 • . 274.44 274.35 0.09 2.48 0.12 213.83 727.17 114.00 ------------·------·------· ---------· --------.. -1-------+-----~-l-------1-------___ , ________ , ------_,_ ----l---------1----------1--------1-------1-------< R_:.~ch-1 387 . _i:F 1 . .J__ __ _3743~i __ 27~3Q, ______ Q~1---___ Q:?~1-----Q:Q~1---~~55~1 _479.88, ____ 95.621 220.921 Reach-1 387 PF_2 __ L_27~32! ___ 275.~~---Q:1~---·. ~-~~ ------~94 ~!3.81 __ 6~~19 79.00 Reach-1 Reach-1 ~~~ ···•• .. ••••• 1.:~~.. ..J_ ___ ~;:_:1_ ~;~:~~l==-~-~f·I-.~~ :--~-~}l ____ ~~j/ __ __]:;;1 -~;~~1 __ 144351 2!::~~~ ----1---------~------l------~ I Reach-1 632 ·• •. r~ 275.75j __ ~?563j_ ____ 0.121 0.531 0.01 l=~t61 323.041 74.281 13828j Reach-1 632 PW2J=~6~6~ ~---27~54L_ ____ jj! ~-=--~= 0.43 ----0:03 ~1.2~j_ -345.77 ___ 124 02 85.00 i.--I 1---··--·--l-------+------+-------<,__-----+-------1 276.46 l-'---"--'---4-"--'--~-'-'--'-l~-'-'-----+---277 .53 t---,,_...,,.~__,..,.,,.,,,.,..,...,,-1-,-,..,......,.....,.,,.,.,.,..,,.--+---277.26 276.38l ____ O_:Q~j----·-Q:?Qj 0.01 0.27 0.81 0.06 -------·+-----1------+-----+-----I 493.57 I 372.43 I I 276.72 I 1 ~7 1 A I fifiA A? 53.00 Re~~fi.:1 1952 Culvert .· Reach;1 .• Jwti +: IP:FF · 277.37 277.35 0.02 721.06 143.58 1.37 292.48 Reacn.:f 1990: • <IP.i?2 · 280.03 279.97 0.06 500.05 342.68 23.26 91.60 ::;:::1:::·· R~~6tij 281.09 280.22 o.87 o.31 o.34 116.48 568.34 181.18 110.74 Reach-1 281.14 280.80 o.93 o.37 o.35 221.25 638.75 65.oo ----·-----------·------------Reach-1 281~90 281.86 __ 0.03 _____ D.64 0.17 70.96 163.92 631.13 263.99 Reiich-f 1384 282.43 282.40 0.03 0.52 0.18 147.97 718.03 160.00 ...... . . ..... .. ----------·--·--R~~cho1 1~04 282.10 282.04 o.06j_ 0.19 0.01 o.oo 370.90 58.10 159.36 ~Recich,l 1504 : 282.55 282.52 003~ 0.12 0.00 353.50 75.50 149.70 1React1;1 . j1643 / j < .. I Culvert-4 ~--J ____ _ Reach-1 1782 286 286.18 o.o3 103.80 290.46 34.74 168.48 E_E __ _ Re<jch-1 1782 =_-286 ~86.23 · · ci~~I__ =---.. __ l-=--:::--==J--a7:a7[--303.30(=_~1.83[ 138.34 Reach-:1 PF 1. . __ 286.29 =-286.26 . ~4t=--~--.. o~r== o:oo 28.86 253.64 146.51 115.46 Reach-l . PF 2 > __ 286.45 -~~~----=i~----Q:=i-=: 0.03 429.00 27.00 Reach-1 2041 PF 1 · 286.38 286.30 ------· -·. --t------+------j----------·---1--Reach-1 2041 PF 2 -286:69\ ____ 286.~~--9_:~~. ---_ DQ?t ____ Q.021 !~-22_L_397.68r..!...!_~ 95.28 _ ~33 ______ _Q:o3 !Fl ___ ~~~?-23 24_ooj 0.07 ·-·--··- HEC -RAS Plan : Plan 05 River: RIVER-1 Reach: Reach-1 (Continued) ____ .-------..-------..----~--.--~--..,....--~-...,...,---~--. Reach · 'j: River Sta . •· Pr(>filE! ••••·••E .G .~ -~J~$."·EI~;---Vel Head ·· Frein Loss .· c & E Loss '•O len < a chcirinel · ., a ~it#••• .: TopWidtti '• ' •· •· •••''' -• . (fl_ ) . . ·.(ft) ·---'-,---:--(ft) ____ (ft-j -'-. -'"'---1----(fl-)----i--(c--fs-)--._-+--"_-(-'-c-fs-)'""-' --1-'-'--'-(~'-fs=)'--••'-:-+•-• •.• --'"'-(ft_) __ -',""-l 1------1-~----t-~-~1--~~--t---'--'---•--'--'----~-~--+--~~--+--.o._.~--11---"-'--'-'---t-~~~-t-~~---1 : .: . :· ... , ...... : .. . Reac~1 2194 •. ·: ..•• PF 1 '• 286 .91 286 .61 0 .30 0.42 0 .12 67 .09 281 .78 80 .14 65 .31 287 .96 287 .24 0 .72 1.00 0 .27 429 .00 14 .00 ---------+-------+-----1------1-----1---·--l >------+-----+-----------_ , ____ _,_ ____ _ Reach-1 2691 · PF1 1------+-----+---,.---1----- --·-·-·---·---291 .80 291 .44 Reach-1 2691 PF2 292 .65 292.41 -----~----------- 0 .35 0 .23 ----1------- 4 .85 0 .03 47 .18 373 .34 8.47 71 .93 -----------------------·-------------··----- 4 .53 0 .15 21 .24 391 .26 16 .50 35 .00 Errors Warnings and Notes for Plan · Plan 05 Location : River: RIVER-1 Reach : Reach-1 RS : 2691 Profile : PF 1 Warning: The energy loss was greater than 1 .0 ft (0 .3 m). between the current and previous cross section . This may indicate the need for additional cross sections. Locat ion : River: RIVER-1 Reach : Reach-1 RS : 2194 Profile : PF 1 Warning : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0 .7 or greater than 1 .4 . This may indicate the need for additional cross sections . Loca ti on : River: RIVER-1 Reach : Reach -1 RS : 2041 Profile : PF 1 Warning : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0 .7 or greater than 1 .4. This may indicate the need for additional cross sections . Location : River : RIVER-1 Reach : Reach-1 RS : 1504 Profile: PF 1 Warning : Divided now computed fo r this cross-section . Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0 .7 or greater than 1 .4 . This may indicate the need for additional cross sections . Location : River : R IVER-1 Reach : Reach-1 RS : 1384 Profile: PF 1 Warning : The ve locity head has changed by more than 0 .5 ft (0 .15 m). This may indicate the need for additional cross sections . Warning : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0 .7 or great er t han 1 .4 . This may ind icate the need for additional cross sections. Locatio n : River : R IVER-1 Reach : Reach-1 RS : 1160 Profile: PF 1 Warn ing : The energy equation could not be ba lanced with in the specified number of iterations . The program used critical depth for the water surface and continued on with the calculations. Warning : The ve loc ity head has changed by more than 0 .5 ft (0 .15 m). This may indicate the need for additiona l cross sections . Warn ing : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0 .7 or greater t han 1.4. This may indicate the need for additional cross sections . Warn in g : The energy loss was grea ter than 1 .0 ft (0 .3 m). between the current and previous cross section . This may indica te the need for additional cross secti ons . Warning : During th e standard step it era ti ons , when the assumed water surface was set equa l to critical depth , I the ca lculat ed water surface came back below criti cal depth. This ind icates that there is not a va li d subcrit ica l answer. The program defaulted to critica l depth. Loca ti on : River : RIVER -1 Reac h: Reach-1 RS : 927 Profil e: PF 1 .Warn ing : Divided now computed for t his cross-section . Locat ion : River : R IVER -1 Reach : Reach-1 RS : 632 Profile: PF 1 Warn ing : Divided now computed for this cross-section . Wa rnin g : The conveyance rat io (upstream conveyance divided by downstream conveyance) is less than 0 .7 or great er than 1.4. This may indicate the need for additiona l cross sections . I 1 Location : River : R IVER-1 Reac h : Reach-1 RS : 387 Pro fil e: PF 1 Warning : Divided now c om puted for thi s cross-section. Warning : The conveya nc e rat io (upstream conveyance div ided by downstream conveyance) is less than 0 .7 i or greater than 1.4. Thi s may in dicate the need fo r additional cross sections . Location : River : RIVE R-1 Reac h : Reach-1 RS : 2 15 Pro fil e: PF 1 Warning : T he conveyan c e ra tio (up stre am conveyance d ivided by downstream conveyance) is less than 0 .7 or greater than 1.4. T his may ind icate the need for add itional cross sections . 1Wa rn ing : The ene rgy loss was greater than 1 .0 ft (0 .3 m). between the current and previous cross section . I Th is ma y in d icate t he need for add itional cross sections . I I 'Location : River : R IVER-1 Reac h: Reach -1 RS : 0 Pro fil e: PF 1 Wa rning: User s pec ifi ed wa ter su rface is not possible for the specified now reg ime . The program used critica l I I depth as the start ing w ate r surface . I §: c .Q . "' > CIJ w 290 285 280 275 270 FEMA -Trib to Burton Creek Plan : Plan 05 11/24/2004 ,..__ _____________________ -RIVER-1 Reach-1 -~--~ -~ -.----.----,.--., ---,---,- 0 500 1000 1500 2000 2500 Main Channel Distance (ft) 1 in Horiz . = 400 ft 1 in Vert . = 4 ft 3000 Legend WS PF2 WS PF 1 Ground g c 0 ~ > Q) w II 285 280 · 275 270 FEMA -Trib to Burton Creek Section 387 Plan: Plan 05 11/24/2004 ------------------.08 ----------------------.065 -------------.08 ---------~ --r----r-----.-------,-.---,--~ 0 100 200 300 400 Station (ft) 1 in Horiz . 50 ft 1 in Vert . 3 ft Legend WSPF2 WSPF1 Ground • Bank Sta Encroachment §: c: 0 ~ > Q) ijJ \I 285 280 275 270 FEMA -Trib to Burton Creek Plan : Plan 05 11/24/2004 Section 510 ~~~~~~~~~~~~.08 ~~~~~~~~~~~---i~~.055 ~~(---~~~~~~~~~~-.oa ~~~~~~~~~~~-4! 0 100 200 300 400 Station (ft) 1 in Horiz . = 50 ft 1 in Vert . = 3 ft Legend WS PF2 WS PF 1 Ground • Bank Sta Encroachment Proposed Conditions Model (P.C.M.) Plan: BCT-RCB RIVER-1 Reach-1 RS: 632 Profile: PF 1 ntcfaeievtflfU :: • •·•••• 215.86 t:eieme11t•:u:•::••:u•r•::::::::::a:::::.m:t~ffoi:Ht:::::etiann~111•::a111fwos.1 :V~1H~~~'«tYH•>••x• 0.11 o&~:n.;v~m:::::::::::•m:••:::•mr 0.080 0.065 0.080 :W.;$.;i;!Eiv(~)::••••••••'• 215.75 ViR~~~@fo<mrrn :::•:: Hfo 106.00 122.00 115.00 •Ptttw;s/(ttJ••:•••H•. : •AOW:AW~R$Mtlt• :::•:••\'•' 256.64 89.30 59.63 • e;;r;;:siof)&(riif!)U••••• 0.002953 rxrea{~!Iri> uu:• •••TH• iM 256.64 89.30 59.63 \¢fe)i~iM5f••••.•••·•••,.,,, 941.00 fifiil..Y{fil~TFT::Iff?> UJ 546.36 316.31 78.33 tr.oP.Wl~tHc~r·••••\ 143.21 Cf~iiWk#.MttF?••••:•::: \fl 88.16 15.00 40.05 &etT.¢(at(M): .•:•:::::: 2.32 fAygl}/.liiidft~E·••m:r :•L}I 2.13 3.54 1.31 $faic6t•oiMtnH>• 8.ss t:fMlkoei>liWitn•:::m:••:•::n 2.91 5.95 1.49 t¢9hY?f ~t~l(~f.5). :nm• 11311.5 1¢.~~WiM~:rm::n•••:•:::::••'••::i 10054.9 5821.1 1441.5 WEifuitiW(~;: tf'I) u••t 114.08 rw~@e~rdnH••••••:•::rtl 88.43 18.55 40.16 :M1~ch"Ei•cnn: ••• ... 261.20 fsti~~E(lbl$(i'fi)'t:':'•:t•]:J 0.53 0.89 0.27 :Aii)ila) •••·•: • • · 1 .3o t sir&m P:owedi8Jit:sf : J 1.14 3.14 0.36 ffO.fo~0.5~ @•:•::·•••••• o.41 t ¢.af:TI.•W@!l~:{a<HE!.im••ff:A 3.69 3.87 0.55 }¢ & E l()s$ (ft}:•!:•·•••·•• o.oo i cum•$Af~~r¢S)n•: .,,, , • :j 2.47 1.43 0.47 Plan: BCT-RCB RIVER-1 Reach-1 RS: 632 Profile: PF 2 g;~:~r~Viif) :::•:•·•·::: 216.60 •$1~ful!l;lf}:::•::::::::: •• ::;:::• :y:::::t.~WP~ (:•:::¢.~H~1 m:•:Bi9fitc:l$• WiHEi~~(f!I.•/•''''····· 0.12 Wfo!f.VW••••m••••:•:::::::::::::: 0.080 o.os5 0.080 i W.lslei!vtnF•.•••••·••.•• 276.48 FRiiaCfi:Cii&•ffi}.lll:E•••@mrn 106.00 I 122.00 I 115.00 UcritwlsJciiiY•••• '·''. . F:iOWArea'ts<fitfa••:•:::•••m I 201.63 1 100.21 1 10.45 ~;(f:$.idl>~{iti.~V•t•· 0.002429 fj~~{[q~fafajj:::•:I•:•:::••::::1 201.63 I 100.21 I 70.45 •:9t9tal(~r~}.••••··•·········· 941.oo f:F.JQW@sit::::::::::::::::•:: :• •' 470.87 347.65 122.48 Ufo?Wliiiii(ftj\: :••.•••· 85.oo i•tol:l:wtdititnW•••••m••••• <I 45.00 15.00 25.00 Vei i otal<itlsi u 2.53 (Avg)Veli(fji6):.••••••:::•••Uf/ 2.34 3.47 1.74 M~<W riilifr(ri}••·••·• 9.28 t•HY.~i:'.P.~P.ti{@j}•:•::•:••• \. 4.48 6.68 2.82 :corii/Utilfoi Ms>••:• 19093.4 i•c!iiWaMs)' •:•:•: •:/::•••······· 9554.2 7054.1 2485.1 L~ti9ifrM:ifrtfi>/••• •' 115.99 ~:We«iid eerHnJ• :.:•:• • •• 49.48 18.55 26.92 Mincti Etifti':•••••···· 261.20 r:sileai(ib/SQ ii.P•••:::•••• , , 0.62 0.82 0.40 :AiP@H::' ,;,, .:::••··••••• 1.18 t $tfe~@e6Wfiff:<@~~F 1 1.44 2.84 0.69 F:rcio t9s~ @< • • •·• • ·, • · o.45 1:0.µm:v.9.i~m~{~~r.~ttr::A 1.47 4.93 0.09 •c&stossxni.•••••••••• o.o3 Hj\im sA(acfos.n >< •• J 0.52 1.43 0.03 Plan: BCT-RCB RIVER-1 Reach-1 RS: 554 Profile: PF 1 • s.;o.~ :SIEilii"f ,••::•••••·•! 215.45 l•J;1~rii~~n::::?•::•:•::::•::::••::':l ::•:::::t.~Ko~1 .. \ •Cl#.rio~I •'••••Rl9l:ltos V~iH~acl(fir ..... UH 0.12 !Wffii.:vih ::: ::::••• : •I 0.080 0.065 0.080 Wlsl Eiev(f!j/ /HI 275.34 I Reacl.iie&ltitj ::: ::: •• \I 20.00 20.00 20.00 ¢H~i!{$.Y@ :::• H••I !f'iOW!W~~ts.cim:t::•H •. :\1 166.51 145.74 107.98 i;;q; $!oii~Wim> / I 0.004435 Ft\r@: M#t) • ? ••• • :..:::J 166.57 145.74 107.98 ci:T.bl~iYcts} TTTJ-. 941.00 [FioV/:{c(~j) :,>•••••::: CSl 281.00 500.95 159.05 topWicitti(flF• HI 228.40 !toil:wr&WtriF+• •• ·····u 104.35 41.00 83.06 \lei 1#~i @~L• • • • •·• •. • 2.24 Ahfvek@~f:: ::::=:::: ••••.•: 1.69 3.44 1.47 • M~¢l:liOptfr<tt}:••••• 6.34 t HY.~riP~P.\ff@:::::::::• :\•J 1.60 3.55 1.30 • c¢r\Wtofai (erst••••••• 14130.1 ~=corw.•{cr$)Tff.J••n:'•• '· 4219.6 7522.6 2388.4 len9th Wtcfr w • • ••• • • • 20.00 f Wetted f!erdii.)::::•:u:• ::i 104.58 42.95 83.09 Mi~cf1¥1@•••:•:••••••·• 269.oo f!$1i~ar: (11#.S.ifftJ•••m•'•T•:rn 0.44 0.94 0.36 AliJ:Hij/:::u:•.••• ···· 1.50 i $.tr@mF:%'/~fflb.m$)W/I 0.74 3.23 0.53 tidrt to~~ (tt> •·• • • • • • • • • • 0.08 i c~&VoiuiHP<~fa:eint:•>• 3.18 3.54 0.33 • c &e:toss{ni•·••·••··· 0.08 t:cum s.A{acres) • " 2.24 1.35 0.30 Plan : BCT-RCB RIVER-1 Reach-1 RS : 554 Profile : PF 2 e::ci i Eievtt.t> > 216 .11 Eiement ::P:: ':•::::: ::•:::•: :••:n:::teifoa• •:••:•::eMnHei ••••••Rl@i os ve.i 8e~CJ (ttx • • : 0.29 }Jii~hN~W •·•·•••••••rn•• ::•r:: 0.080 o.065 20 .00 20 .00 165.98 :.:e::dt:siob&{riiti>ti> 0 .001185 :wreaW<fn>:•::::::::m•:mm:•:: 65 .37 165.98 759.00 41 .00 4.57 ••.MaxciWolliK(n t:t•·•· 6.83 Wi®ff oei)iii(ib t•••n:::m::• 2.61 4 .05 2147 .1 8954.2 27 .79 45.78 269 .oo :siiealHi6isC1n1 :•• • •• ••••' 1.05 1.63 'A'ii)tla ) :: • ••=••••:::''••··· 2.94 7.44 1.15 4.56 0 .43 1.35 Plan : BCT-RCB RIVER-1 Reach-1 RS: 532 Profile : PF 1 40 .00 40.00 40 .00 235 .31 67 .03 440 .79 73.93 941 .00 60 .25 99 .00 59 .27 vei t &aiWs>•••••••••• 4.oo /Av9 l:Ve (iftis)<•••••••'''··· 4.00 5.35 16450.3 44 .00 269 . 10 :sHeat (ibiSQ ro ::m:+:::•:u:t 1.09 4.37 n=rcin t~$i3 (itF •.: • • • •'''' 3 .12 3.41 0 .29 2.20 1.32 0 .27 Plan : BCT-RCB RIVER-1 Reach-1 RS : 532 Profile : PF 2 i;i !:t i;i~Y if:iF :••••'·•',''' 215 .99 i;i~m¢h~:••••••' :: :• w:••••••t• ••t.~noa ••••••••oti:a'rio¢1 nn ~i!ititoa 0.19 :Wt.ifV~i l ::::::::::::::: . 0 .065 w '.sl EieYtti>U•••••••'·' 215 .79 Reacl.iienHiii / : ::: :: 40 .oo 40 .oo 40 .00 0 .002116 ArAAMiitFU••:::•:r: ·· ,,. 514 .73 • o t ofai(ctsF••••·•••••'.'' 6 .09 ·Hydr: Depth (ftf.:,•': ,. · 6.09 20454 .8 i eh9th:W.id ::criJ U•:·•·•:•• 44 .00 0.81 Afpfiii \•••;;;;;··· 2.83 Frcfotosi:itn> ••••••••''' 1.13 4.40 •:c & e:tass(n )•••••••···· :cum s.A(acresf >•••••'''··· 0 .43 1.32 Plan : BCT-RCB RIVER-1 Reach-1 RS : 493 Profile : PF 1 0.004082 ·Area isCin>•wt•t••m:m::r 90 .00 Plan : BCT-RCB RIVER-1 • vei t ofili tros)u/:•·•··.• •·:lefi9thWld ((tt):• Mi il.ci1E:iiit) j/ ··· .~~· :• ... , ... ,. .. Plan : BCT-RCB RIVER-1 •VeiH~ad(rt}H·•·· ··=·=· Reach-1 RS : 493 Profile : PF 2 941.00 ·:•f!9.W·c~rs1 ::::::::•:rmn•=••u ::: 3.65 •AV.d t:vei ;'iftis)•••••••r:tt ••t 269 .50 ·:siieat tib/.Sq :itJ +• •••••••t•t 1.00 $ffe.airif.i~diti/~5 E•n Reach-1 RS : 387 Profile : PF 1 81 .84 3.05 2 .14 1.13 0.43 214.21 :Rea&1 I el'lf cii)::.:::••t•••••• 190.00 0.004816 • atofai(dsi •\:·:•• 941 .00 :F.~{cr~F :•: :.:: ===·========· 366.20 :J"oi>WiCitti tnJ :••••••••• 221 .64 ToilWfdiiiW ••••·••• u•t::< 135.12 • Ve1 r'Qia((ft/s) • •·• • •·• • • • :ten9iii Wt<Ut«>•·••••··· :AiP.h~·<:·•:•••··········· • c. & e: t oss Uh •:••·•••••• 381 .56 47.89 941 .00 92 .00 43 .58 4 .27 5.01 14729.1 44.12 1.27 5.44 3.03 0.23 1.23 0.22 107.00 64.40 258.08 480.26 941 .00 92.00 3.65 5 .87 19155.2 44.12 0.88 3.21 3.95 1.23 285 .00 160.00 126.80 65 .01 126 .80 65 .01 478 .74 96 .05 33 .00 52.92 3.78 1.48 3.84 1.23 6898.9 1384.2 34.54 52.97 1.10 0 .37 4.17 0.55 2.41 0 .15 1.08 0.15 Plan : BCT-RCB RIVER-1 Reach-1 RS : 387 Profile : PF 2 :e:1G-CEieVtri>••••••••••==•== 215 .34 :Eiemen:t :• •n• :r:•:::m=:::r> =•=•:••:teri b:s •••••••c ilanhel ::::•:~16!.ltos •Ve i fie~ei @ ••• • •····•==· 0 .19 :W¢.HN~w:n•• :•::•••r••••:::r 0 .080 0.065 190.00 285 .00 160.00 131 .08 157.70 131 .08 157.70 314.65 626 .35 46 .00 33.00 2 .40 3.97 2 .85 4.78 4703 .1 9362 .2 48 .82 37 .68 MinCh El (fl F ::===··=· 0.75 1.17 1.80 4 .64 1.03 3.19 0 .39 1.08 Plan : BCT-RCB RIVER-1 :a:curif G:foG?tcrsW••==• cliiVcrt oepih::crti ••••••:: Reach-1 RS: 512 Culv Group: 48" RCP LEFT Profile : PF 1 64.68 ·=&1iVF'm1:·rnntnn •••••••••••rn 38.33 215.05 •':ct1iV1nv:e:1ornn m••••••t=r 210 .50 275.00 'WeirMaxde8iiNitF •·••H Plan : BCT-RCB RIVER-1 Reach-1 RS : 512 Culv Group : 10X7 RCB Profile : PF 1 :ct cUi V:G.foJP.tc:rsw :> 811 .63 'ciM#Uil t enRri>•••••mmmrn 5.53 5.30 ·•e10.t•.us nttt>t•••·•UHr••·••• 215 .30 ··:Ctj if iRf ei :u1:1 •tfiF••••••m•r 269 .70 cwv.~ff c8iifrot : : :• :•::: • •· •· outiet ·:wei t SubriH:irg ::tr:·•·•·:::::••• 214.59 :w.ei ffJiaxb.ebff Nn:t ::.u•n • ¢.i.iiV Nml o~?ih (tt) •: • •• • • cuiY :ch oept h{rt.i.•·•••••·•·• 2.83 Min EIWiiii'.floW(ft )C 281 .55 Plan : BCT-RCB RIVER-1 Reach-1 RS : 512 Culv Group : 48" RCP RT Profile: PF 1 215 .05 .•·&11Y.•frWEiorttn;tmm:::::: 210 .50 215 .30 ·•·WW$fijRgf@ ''•••••k•H? 21s .oo ·•Weiffiax.b.ebii'nm ••:::••w 2.43 MlnEiWefoFiiiW@ <'••n 281 .55 Plan : BCT-RCB RIVER -1 Reach-1 RS : 512 Culv Group : 48" RCP LEFT Profile : PF 2 ti •curvrifou&ccrsr ::::: 55 .01 •ciiw •F:Giit'entM Jmt=m::: 38 .33 •:1#•$.~l!~i ~:: i ::::::•<••=•• 1 ::¢~i\iY.el:JJ $Wih t::::•:::m 4.46 td:a ar.r~r:tc~M:•:•:•:::•vt• 55 .01 t¢!:itvV~t>sW$1 :n:::rn:::•: 4.46 J~;G t •.vsnrik,:•mrn:r:r 215 .99 cuwitiv:etQMM t::m:tr 211 .00 w;sm:Jst (rii <:,::nu::::: 215 .79 ciiw iME:Con:tn>mmm=m 210 .50 :$;q(¢$•@i: :::::: ::::.::::: 215.61 :C:~i\ift.ffof iWK~f ::::•m::m: 0 .01 0 .10 0 .15 cliiVcrt oepih(fi):::•=•·•• 2.25 M lt\EiW~lrf ibw(tt F / 28 1.55 Plan : BCT-RCB RIVER-1 Reach-1 RS : 512 Culv Group : 10X7 RCB Profile : PF 2 t i cUl:V:G:fouP. tcf:SW•·•• 828 .98 •ciiiVFui1 t en •ti:i> m:•::n::•t •·~·$~~~i~i ::>:::: .. :.:.·:•:.. 3 ®iY.Ve!#$@~#•••••tt•• 4.8o ioi3ijii~H~M •• Jt•:•••: 216 .33 i~~i~V~P:SJN.$):::r:t:••/ 4.64 }ElGfUs Urih •••·•rn:••····· 275.99 :e:Vw iri't $iJ#Htt)f:J:•f• 269 .70 w:st usl tfi i ::.:.:••:r•u••• 215 .79 j fowiiME:i :on tn>:•:mm:m 269 .50 i g;¢fr ifi$•@••'Uf t•••<• 215 .61 • ¢µW,i=@tMG.W~fr •H •t•:•:•• 0.02 .w;sn;:;$t t:tt • : )\ • , 215 .46 :cwv :~~ttt.~$~:ttrn <·•·'•••:•• 0.13 :D.~ifaE'd Hh :•t: ••••••••:••••••• o.32 ®M•E'Mft¢.$$fro5:•:••?•••••: 0.18 oeita:ws(n ff rr• •••:• o.33 &Wei i'{crsj •t••••••m•mw•:m 2.42 Welr FloW.Atea (sq ft) . 2.81 •Mio EtWeifftow :cttn • ••• 281 .55 Pla n: BCT-RCB RIVER -1 Reach-1 RS : 51 2 Culv Group : 48" RCP RT Profile : PF 2 nacUiVG:fouP.cctsF •> 56.01 ):%iVFUiite'n t n>t ..........•... 38 .33 JI $~~~i~'••U••••n:t•••••••·•··· 1 •¢tliYY:eliJ$Wti~)·••••f •••••• 4 .46 •4•$~ri~H~M l·•···· ••...•. 56 .01 •ci:JiVV~tisW$fi ••·····•••% 4.46 e1¢;•usI (tii H•<Ut•••.•.H 275 .99 •¢b.MfoWe(Q.p '(ttH••·•·•••t 271 .00 w;s:.usanv ••t•• •••• 215 .79 •¢t1w111v E:rno tii n•••m•:•m• 210 .50 ··•t;:q:•i'.J$•@u•••••r:••tt•: 275 .67 •¢t!iifif4WOWm •••r:••······· 0.07 :\M$i•O.$.mO.•••••?<••··· 275 .46 f®.W~~WtW~("j J••·······r 0.10 b.iiitaeqdiF ••••J• • o .32 •¢UiV ~ntf#i$K(tth••••t••t 0.15 fieita:Wsi nF•••::••t•••·• o .33 ••~WeiN&rsr:••••••••r•••••••••• 2.2 5 Ml&EiWeihF:ioW t rt h ••>• 281 .55 I' .\ HEC-RAS Plan : BCT-RCB River : RIVER-1 Reach : Reach -1 •Reach •·•• /R'ivef:St.a •·•• • Pioiii~ ••• •or~al:< /tv;lii(;tiEr • •w ;s:.•i:tei.i • cr1tv,rs.:+ • e::tt Ei~ •••: E:c:;::s.ropi:i/ •r.vet¢1iii L ' :i:J~W.Aiea '\ •/topW.@ff • • Fr~#Clil \ •• < < : • (: : . • • ..... ·.. .. • ·····:::::•: •·•·• : ••(C.fSfr •••i= i ) \(ft) ............. H• (ftf ::::•:::• • t•<tt>\••• • ) •(ft) ···· ••d ftlft)( •• •• •• •Y tftis}: '•• •••••• (~ft) ; ;: •.•.••• f fo) ··· ••• •::: : ::,::• · • ::::•• Reach-:1 /H ®7 ( .......... PF2 > : ,........ . ....... >• '.~~~~~.:·; 1:·: :·:: :::::::·: iet~:> ::::: :• : 1::(:·: : ::: : ~:~{ IReach'i:::::: •• l!l lf~/ :\• :: :; •• •••• , ·: .. ··••••?'.\........... . .. : ....... . R~~~iFfr /\lsg ••••••<······· ···· <'•\ •: '' • ~;.a.:.::;.:F ••••J l 5~?••Y•• •••••· P.r. 2••••••?••t .................... ....... ..... ••••( ...... ? 'R~~~:i:tW ?••• ~··•••••? / fif.g • ............... . •.•·•••IA•·••••••••t t •<•rm •• ·:::••?t ••••••un IR~aclt tt< "''n <> .. < R~~tjj;F : • $ii}• ••r ••r • PE~··· ..... ,......... +<••< •H< l •~;_a~• .. ~·":••·•• ••·•:•:•:••:•""" :/';:/\ ...... 1::: ............. .. 8~~~1Hn•••·n•••• ~+••••••r •t>•• e1 %•i H:i•Ft•n R~MMftt/ $$9 ':i i if¥t• fi1::•2 •tF•t •>• ••••••••••••• r:::•r •::• •... .. i::.••••r.:••·•· 8~~~m n:n•••., ;~ ••:n m••n• P:ft i ••n:••E••• •• ::::::··· ••m t•-••••·•••rr 941 .00 941 .00 941 .00 941 .00 941 .00 941 .00 941 .00 941 .00 Culvert 941 .00 941 .00 941 .00 941 .00 941 .00 941 .00 866.00 866.00 Culvert 866.00 866.00 866.00 866.00 866.00 866.00 429.00 429.00 269.60 269.60 268.00 268 .00 268 .00 268.00 269 .50 269 .50 269.70 269.70 269.00 269.00 267.20 267.20 270.00 270.00 271 .10 271 .10 274 .50 274.50 277.20 277.20 278.40 278.40 270.73 271 .17 273.47 274 .35 274 .21 275 .14 274 .60 275.46 275.05 275 .79 275 .34 275.83 275.75 276 .48 276 .43 277 .23 277 .36 279.96 280 .22 280 .80 281 .86 282.40 282 .04 282 .52 270.73 271 .17 271 .96 272.01 272.01 272.12 272 .12 274.51 275.33 280.22 280.80 271 .12 271 .84 273.52 274 .44 274 .34 275.34 274.89 275.67 275.30 275 .99 275 .45 276.11 275.86 276.60 276 .51 277.50 277.38 280.02 281 .09 281 .74 281 .90 282 .43 282.10 282 .55 0 .071266 0 .059206 0 .002380 0.002427 0 .004816 0.004476 0 .004082 0 .002413 0 .003272 0 .002116 0 .004435 0.007185 0.002953 0.002429 0 .003250 0.005985 0 .000691 0 .000841 0 .027388 0 .026727 0 .001428 0 .001062 0 .003693 0 .001561 5.83 6 .80 2.19 2 .60 3 .78 3 .97 4 .27 3 .65 4 .00 3 .51 3.44 4 .57 3 .54 3.47 2 .99 4.45 1.56 2 .34 8 .94 8 .77 2 .26 1.81 2 .10 1 .59 199.66 146.06 574.60 396.20 393.99 288 .77 220 .44 258 .08 235.31 268.17 420.30 231 .34 405 .57 372.29 482 .41 214 .17 841 .42 472 .82 159.58 136.17 642.41 594.88 230.95 302.94 255 .52 110.00 287.43 114.00 221 .64 79.00 217.41 92 .00 218.53 99.00 228.40 66.00 143.21 85.00 280.80 53.00 292 .63 91 .48 110.73 65.00 263.99 160.00 159.36 149.70 1 .06 1.02 0 .23 0 .24 0 .34 0 .32 0 .34 0.27 0 .30 0 .25 0 .32 0.40 0 .26 0 .24 0 .28 0 .38 0 .13 0 .16 0 .79 0 .72 0 .19 0 .15 0 .27 0.18 !I HEC-RAS Plan : BCT-RCB River : RIVER-1 Reach : Reach-1 (Continued) • Read{ ••• ~ri~d;ta::: ::: li.rofiiii :: Ci TofaJ •••• Mlii Ch EL : :W :$~Elev . ••ciitWS ::O .• ELG.i toieii: •• f E :~: Slope •• •'•VelChiil / '••f'jow •Afiia ( ••r~ifWldtf.i '•• •F.rOiidii'#Cfit •{ : : : ::::::: : : ::: : .. L • • / : :(Cts) • :: • (ft) < .. (n) .........• =(it) ......... H(rt) i .. H (ftlft F u ..... (fii:sHL• • ·••:Jsq~y •:? ••• \(ftF : :::: ::: ::::::::::::::.::: ;::; Culvert ······················· ·::::·::::::::::::::::: :: iPf1 :•:·::.:·::::::·: 429 .00 429 .00 429.00 429 .00 ············••·•::••····· •.. ••'•''••<+·•••••J••••· 429 .00 429 .00 279.00 286.17 279 .00 286 .23 279 .60 286.25 279.60 286.33 280.40 286.30 280.40 286 .51 282 .45 282.45 286.20 286.26 286.28 286.45 286.37 286.69 0 .000503 1.50 412 .18 168.17 0.12 0 .000528 1.55 373 .89 138.34 0 .12 0 .000513 1.64 378.98 115.32 0 .12 0 .002018 2 .73 157.14 27.00 0 .20 0.001379 2 .50 248.39 95 .08 0 .20 0.003122 3.44 126.83 24 .00 0 .26 · .. ·.::::·:.::-·-=~::::::::::::: ·::::·:::'::.:•:·::': ····•t• ,., ~~c,..,."'"c,..,.""'~" -----+----+-----+---l----1------+---l----+------+-----l 8~~~lFf << ii~4 •: • :<: PF fl ••> ...... . 429.00 281 .50 286.61 286.91 0 .009497 5 .23 121 .61 65 .21 0 .47 ~~~~ft :H• Zi$4 U ••n?i P:F: g ::::== 429.00 281 .50 287 .24 287.96 0 .021343 6.83 62 .84 14.00 0 .57 ................ ).... . .......... .. 429 .00 287 .00 291.45 290.73 291 .80 0.012072 5 .06 107.72 72.04 0 .52 429 .00 287.00 292.41 292 .65 0.005153 4 .00 119.06 35 .00 0 .36 !I HEC-RAS Plan: BCT-RCB River : RIVER-1 Reach : Reach-1 • •Y Reach:: .• ·• •••Rive r.~~a ••:• •:r,r,c;riie .?• ••e2c;::E:1e v.•• ••w:~L e rw •• •V~i Hea<I i' ';ii rci i{i:.$.55 >: ••c &:a:to55 .•• ::•••ot erl ?•• •••a:cila\lt1e1 •r ••••§ki9ilfo t ••!i bPWi<ltWW <• : •• : :: ,: •.•. :,:.::.'.'·· H•<: T t~n ·•··· · .• •rn hU•• •.•••• •(ttf /'i '; ...• (rt)...... •:d m :: .. ••••:•RC.t~t n:••• ::::: •M9f~)· ••••• ·····•·@~K ••••:,•:n:·••rn ).•.:••• .... 271 .12 270.73 0 .39 458 .66 475 .26 7.08 255 .52 271 .84 271 .17 0 .67 129.34 811.66 110.00 ::::::::::·:·:::::::::+ ..... :::: .•.• ::::: ::: 273 .52 273.47 0 .05 2 .33 0.07 471 .54 464 .84 4.61 287.43 274.44 274.35 0 .09 2.48 0 .12 213 .83 727 .17 114.00 I•••·•••·••::,•,/ ••••••H••••t •••:•'• •::::::: .;;< 274.34 274.21 0 .14 0 .77 0 .05 366.20 478 .74 96 .05 221.64 275.34 275.14 0.19 0 .83 0 .06 314.65 626.35 79.00 274.89 274.60 0 .28 0 .43 0 .12 941 .00 217.41 275.67 275.46 0.21 0 .32 0.01 941 .00 92.00 Culvert 275 .30 275.05 0 .25 941 .00 218 .53 •R~#~hd t ••••: ~:?t:.:rrw••• ee•·~··•• •:•::•:•. 275 .99 275.79 0 .19 941 .00 99 .00 I•/?, ,.,, 275 .34 0 .12 0 .08 0 .08 281 .00 500.95 159.05 228 .40 275.83 0 .29 0 .07 0 .06 182.00 759.00 66 .00 275.75 0 .11 0 .41 0 .00 546 .36 316.31 78.33 143.21 276.48 0.12 0.45 0 .03 470 .87 347.65 122.48 85.00 276.43 0.08 0 .64 0 .01 500.35 365 .65 280.80 R.~~~IH : :: $~7 \ ' :::::::: •• Pf ~H • < 277.50 277.23 0.27 0.84 0 .06 197 .05 668.95 53 .00 :n::::::::rn:::kt \/ : I> 277 .36 0.02 721 .39 143.22 1.40 292.63 279 .96 0 .06 500.10 342.77 23 .13 91 .48 280.22 0 .87 0 .30 0.34 116 .48 568.34 181 .18 110.73 280.80 0 .93 0 .37 0 .35 227 .25 638.75 65.00 R'each.~t :n:::• 1384.•:n::••t•: P.F. + ........... . 281 .90 281 .86 0 .03 0 .64 0 .17 70 .96 163 .92 631 .13 263.99 282.43 282.40 0 .03 0 .52 0 .18 147.97 718 .03 160.00 II .1 HEC-RAS Plan: BCT-RCB River: RIVER-1 Reach: Reach-1 (Continued) ·••·•·•Reacil u• 'Rivel:sta\ t••·~rafiieH• ••!i:!oHE.ieV, •.• w.~sFeieV\ •••Vei Hg~Ci· • •·F.rciKL<>~$·: •·•c.aie•U>55 •• omg~n •• ••o•cflaHileif •••:a~19;:;rrr ••i'l>PWici!W? • •\<tt.r\U •• •••••••••@/ • · n • •:<rt} • :: • •<f!F ••==••• •·• •• <<rfr < · '• :• fot~) ··• •• • •Yn(c#¥::•• nJc.~F••t ·•••:• :<rir+••• • Reaamr.L••l1:504.> ••<m•!P:F:t••r:••T R'~##~~f 11so¥ •u •••HeF. ~ > ~ Re~e@ • 11~:.YL•T • R'~##~~f•U•·•li?~~m•••••UAi=if'1• t:••:•:.•:: R~~c:~dnrn•l1t?z••••••trn•IP:f~:t::i•••••· Reacil~1 nt•l1:953'?••·•·•·••IP#1••< ••.••. Rf?act\hY••••• ; . '. '. ~· ~·. ~. ;· '.'. ~:~. ~· ;:~~;:~:~:;:: ;. :: .·.: . fR~~eh~f ::. 204fl:n:::: \ rtL\ • n 282.10 282.55 Culvert 286.20 286.26 286.28 286.45 286.37 282.04 0.06 0.19 282.52 0.03 0.12 286.17 0.03 286.23 0.03 286.25 0.03 0.08 286.33 0.12 0.15 286.30 0.07 0.07 286.69 286.51 0.18 0.22 ?AF: Q1 ?AF: 1':1 n~ n.4."I 287.96 287.24 0.72 1.00 8aacila< · •· 204ft······ ::=:·:·:.; ::::::.:=:·: ::·=.:::::: :::.:.:::.::.::::.:·:: I ,,n;,,rf,.iifH:mml I I I I ~~~'i',i~[~1~!!1iiil~!i~f ~~ijl!l!lli!1l~i': ----. ---. ---: --R"~@~w•.::•·1®.~fr••••·m•••Afi#i•t•••••<=····· 291.80 291.45 0.35 4.86 R~~~@· •:•l~$1L••••·:•:••:def:~T< ..... 292.65 292.41 0.23 4.53 0.01 0.00 370.90 58.10 159.36 0.00 353.50 75.50 149.70 103.66 290.83 34.51 168.17 87.87 303.30 37.83 138.34 0.00 28.78 253.83 146.38 115.32 0.03 429.00 27.00 0.02 18.18 297.94 112.87 95.08 0.03 1.77 427.23 24.00 0.12 66.94 282.10 79.96 65.21 0.27 429.00 14.00 0.02 47.36 373.14 8.50 72.04 0.15 21.24 391.26 16.50 35.00 Errors Warnings and Notes for Plan : BCT-RCB Location : River : RIVER-1 Reach: Reach-1 RS : 2691 Profile : PF 1 Warning : The energy loss was greater than 1.0 ft (0 .3 m). between the current and previous cross section . This may indicate the need for additional cross sections . Locat ion : River : RIVER-1 Reach : Reach-1 RS : 2194 Profile : PF 1 Warn ing : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections . Locat ion: River : RIVER-1 Reach : Reach-1 RS : 2041 Profile : PF 1 Warn ing : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. Location : River: RIVER-1 Reach: Reach-1 RS : 1504 Profile : PF 1 Warn ing : Divided flow computed for this cross-section . Warning : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections . Locat ion : River : RIVER-1 Reach : Reach-1 RS : 1384 Profile : PF 1 Warn in g: The velocity head has changed by more than 0.5 ft (0 .15 m). This may ind icate the need for additional cross sections . Warn ing : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections . Locat ion : River : RIVER-1 Reach : Reach-1 RS : 1160 Profile : PF 1 Warn in g: The energy equation could not be balanced within the specified number of iterations . The program used critical depth for the water surface and continued on with the calculations . Warn ing: The velocity head has changed by more than 0.5 ft (0 .15 m). Th is may indicate the need for add iti onal cross sections. Warn in g: The conveyance rat io (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections . Warn ing : The energy loss was greater than 1.0 ft (0 .3 m). between the current and previous cross section . This may indicate the need for additional cross sections . Warn ing: During the standard step iterations, when the assumed water surface was set equal to crit ical depth , the ca lculated water surface came back below critical depth . Th is indicates that there is not a valid subcr itical answer . The program defaulted to criti cal depth . Loca ti on : River : RIVER-1 Reach : Reach-1 RS : 927 Profile : PF 1 Warn ing: Div ided flow computed for this cross-section . Location : River: RIVER-1 Reach : Reach-1 RS : 632 Profile : PF 1 Warn ing : Divided flow computed for this cross-section . Locat ion: River : RIVER-1 Reach : Reach-1 RS : 532 Profile : PF 1 Note : Mul tipl e criti cal depths were found at this location . The critical depth with the lowest, valid , energy was used . Location : River : RIVER-1 Reach: Reach-1 RS : 493 Profile : PF 1 Note : Mu ltipl e critical depths were found at th is locat ion . The crit ical depth with the lowest , valid , energy was used . Location : River : RIVER-1 Reach : Reach-1 RS : 387 Profile : PF 1 Warn ing: Div ided flow computed for this cross-section . Locat io n: River : RIVER-1 Reach : Reach-1 RS : 215 Profile : PF 1 Warn ing : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections . Warn ing: The energy loss was greater than 1.0 ft (0 .3 m). between the current and prev ious cross section. This may indicate the need for add itional cross sections . Locat ion : River : RIVER-1 Reach : Reach-1 RS : 0 Profile : PF 1 Warn in g: Use r specified water surface is not possible for the specified flow regime. The program used crit ical depth as the starting water surface . g c .9 iii > Cl> iii FEMA-SC W/ 3-1 OX7 RCS -RAISED SC-ASSUIL T Plan : Duplicate Effective Model+3-10X7 RCS 11/8/2005 -----------------RIVER-1 Reach-1 ----------------- 295 290 285 280 275 270 265 +--~~-~~~-~~~--~~--,-~~~-~~~-~~~-~~~--,.----~~--,-~--.-~-~~~----. 0 500 1000 1500 2000 2500 3000 3500 Main Channel Distance (ft) Legend WS PF2 WS PF 1 Ground ~ E. c .Q iii > Ql w 280 278 276 274 272 270 FEMA-SC W/ 3-10X7 RCS-RAISED SC-ASSUILT Plan : Duplicate Effective Model+3-10X7 RCS 11/8/2005 Section 387 268 +-~~~~-.-~~~-,-~~~~-.-~~~-,-~~~---.-~~~-,-~~~~-.-~~~.---~~~~-.-~~----. 0 100 200 300 400 500 Station (ft) Legend WSPF2 WS PF 1 Ground • Bank Sta Encroachment II g c .Q ;;; > ., iii 284 282 280 278 276 274 272 270 FEMA-BC W/ 3-1 OX7 RCS-RAISED SC-ASBUIL T Plan : Duplicate Effective Model+3-10X7 RCB 11/8/2005 Section 493 ----------.08 ----------*---.oos ----i~----.oe ----~ 268 -1---~~-~-~---~~-~-~---~~-~-~--~~~-~-~--~-~-~-~-----, 0 100 200 300 400 500 Station (ft) Legend WSPF2 WSPF 1 Ground ... lneff • Bank Sta Encroachment \I FEMA-BC W/ 3-10X7 RCB-RAISED SC -ASBUILT Plan : Duplicate Effective Model+3-10X7 RCB 11/8/2005 3-10X7 RCB & 2-48" RCP ----------.oa --------------.065 ----J~----.oa ----- 284 282 280 278 g c .Q 276 iii > Cl> iii 274 272 270 268 -+--r--~-~-~-~-r--~-~-~-~-r--~-~-~-~-r--~-~-~--r--r--~---,--..,.----, 0 100 200 300 400 500 Station (ft) Legend WSPF2 WS PF 1 Ground • lneff • Bank Sta Encroachment 1· .I g c .Q iii > Cll w FEMA-SC W/ 3-10X7 RCS-RAISED SC-ASSUILT Plan : Duplicate Effective Model+3-10X7 RCS 11/8/2005 3-10X7 RCB & 2-48" RCP --------.oa -------------.o6s ----*!;-------.oa -------+i 284 282 280 278 276 274 272 270 268 -1--~~-~-~-~-~~-~-~-~-~~-~-~-~--~-~-~-~-~~-~-~~ 0 100 200 300 400 500 Station (ft) Legend WSPF2 WS PF 1 Ground ,, ... lneff • Bank Sta Encroachment g c 0 ~ > (1) iii 284 282 280 278 276 274 272 270 FEMA-BC W/ 3-10X7 RCS-RAISED SC-ASBUILT Plan: Duplicate Effective Model+3-1 OX7 RCB 11/8/2005 Section 532 ~-------.05 -------------.005 -----'-------.oa ------4! 268 -+--~~-~-~-~-~~-~-~-~-~~-~-~-~-~~-~-~-.--~~-~-~----, 0 100 200 300 400 500 Station (ft) Legend WSPF2 WS PF 1 Ground ... lneff • Bank Sta Encroachment !1 FEMA-SC W/ 3-10X7 RCS -RAISED SC -ASSUILT Plan : Duplicate Effective Model+3-10X7 RCS 11/8/2005 Section 554 =Section 510 Effective Model --------.os --------~.005 ~---------.08 --------~ 282 280 278 276 ------g c .Q iii > Cll UJ 274 272 270 268 -+--~~-~-~-~-~~-~-~-~-~~-~-~-~-~~-~-~-.---~~-~-~---. 0 100 200 300 400 500 Station (ft) Legend WSPF2 WS PF 1 Ground • Bank Sta Encroachment 4 5 7 ENGl!NEER'S ESTIMATE PUBUC 1.NFRASTRUCTURE GATEWAY PHASES 2 .. 4 -CREEK CROSSING WATERLINE SEPTEMBER 26 1 2006 UNIT ITEM DESCRIPTION & iPRlCE l N WORDS III Furrnsl'l.iand lnst~Ut PVC 1,•va1er Ma n (A'uWVA C-'909, DR 14, Pres$ure Cl S.$ 200) -Standard D p .... 4"-6' Bucy .com;Jle and in p lace ·or _______________ .Dollats nd Coots per Ii ear foot EA Fu nish and l nsta!l 1"" Gate Va ~and Box , c.crnp te and in plae-e or-----------~~--~lers Q o _____ ~ _____ Ct;;nts eae n. EA F um1sti and 111ista1! 8." Ouctile !mn M .J . 45~ Bend . to ln<:ludg ~II necessa ry th m st _ ki ng " comp:Je:te and in plar....e for Dollars aori cents each EA F mis.ti aru:f In s all 12"'.XS!' Duct ll Iron, M. . Reducer. to i ciude a ne005'$S.r/ hl'\,Jst blocking, co<tnpl ~ and Ln ploce tor bi;:;lla rs a11d. ___________ cerits &.act1. EA um1sh ar.cl Install " Ductile Iron . J Plug , to include ~I I neCl!ssar1 thru st b lock i{lg, comp lete allil in p l ~ce ~ Dol tars and ___________ Cerits ach EA MJ 1.rst exl$tin9 nre hydrant, •Jenica11~ by -z•, to loc lude alt neoes$Eil)' ~ppun{}nCl!s, comp tg and in plaoe for Ooliat s and Geflls each . EA F' rn1sh and Install We Corinec'lio n to exrst:1ng, 12~ ee , Lo rici ude all nec essary ppu tences . t.an~lot"lo coordtnat wi Ci 'I of Col!e:ge St::i ion Pt1b lic Wot ::s . for Dollars and Cents each . SUBTOTAL~ TOTAL ESTIMA TiEO COSTS : UNIT PRtce T·OTAL Pmcs. JN AGURE'S lt•f f ~G llRES $9 .520.00 $1 ,500.0{} $1 00 .00 ; -. ,, $:300 .00 $£.SCLOO $650 .00 50 00 $200.00 $20CLOO $ ,0 00,(} !YI 000.00 I >I'" I . I $1 4.620 .{l-O $2 1:93.!)0 '$16 ,813 .0 1) KLING ENGINEERING & SURVEYING Consulting Engineers • Land Surveyors 4101 Texas Avenue, Suite A Bryan, Texas 77802 Memo: B.J. Kling, P.E., R.P.L.S. S.M. Kling, R.P .L.S. Telephone 979/846-6212 Fax 979 / 846-8252 To: City of College Station -Development Services Development Engineering From: B.J. Kling Post Office Box 4234 Bryan, Texas 77805 November 8, 2005 Re: DP-Gateway Phase 2-4 Creek Crossing, Case #04-00100036 Revised Culvert Configuration The purpose of this memo is to document the water surface elevation for the Tributary to Burton Creek before and after proposed construction of the culvert crossing. The previous submittal provided for 3-1 O'x7' RCB culverts. The current submittal adds 2-48" RCP culverts to the crossing to meet the "Zero Rise" floodway requirement. Current and future development within the area has and will require the placement of fill in the floodway fringe as allowed by FEMA. Initial CLOMR-F(s) have been filed and accepted for this action. A final LOMR-F, which will incorporate as-built conditions of fill placement and culvert construction, will be submitted upon construction completion · Attached to this memo are the following: input for key cross sections, summary result tables , and graphical representations of the water surface profiles and key channel cross sections. Documentation for both the duplicate effective model (DEM) and the proposed conditions model (PCM) are included. Additionally, accompanying this memo is a disk containing the HEC-RAS computer files used in the analysis. The duplicate effective model is based on a LOMC effective October 30, 2003 (FEMA case no. 03-06-102P). The proposed conditions model is a copy of the effective model with the necessary additional cross sections inserted to analyze the proposed culvert. The sections at the creek crossing are based on a topographic survey conducted in March of 2004 . This data showed the creek flowline to be approximately 1' higher than the flowline interpolated between sections in the DEM. It should be noted that River Station 510 on the DEM was renumbered to River Station 554 on the PCM. The renumbering is based on the actual stream channel reach length defined in the effective model. As shown in the summary results, the addition of the 3-1 O'x7' RCB and 2-48" RCP culvert structure does not increase the base flood elevation above allowable floodway water surface elevations. The following table is provided for reference . Results for DEM River Station 387 512(Culvert) 510/554 632 Q total (cfs) 941 / 941 NA 941/941 941/941 Q channel (cfs) 479.9 / 627 .2 NA 543.3 I 756.0 323 .0 I 345 .8 WSEL (ft) 274.2 / 275.1 NA 275 .0 / 275.9 275.6 / 276 .5 Depth of Flow (ft) 6 .217.1 NA 6.0 / 6.9 8 .4 / 9 .3 Results organized as follows (DEM floodplain I DEM floodway) Results for PCM River Station 387 512(Culvert) 510/554 632 Q total (cfs) 941/941 941 / 941 941/941 941/941 Q channel (cfs) 477 .4 / 625 .6 941 / 941 500 .2 / 758 .1 316.5 / 347 .1 WSEL (ft) 274 .2 / 275.1 275.1 / 275 .8 275 .3 I 275.9 275 .8 / 276.5 Depth of Flow (ft) 6.217.2 5 .4 / 6.1 6 .3 / 6 .9 8.6 / 9.3 Duplicate Effective Model (D.E.M.) Plan : Plan 05 RIVER -1 Reach-1 RS : 387 Profile : PF 1 0 .14 :Wt ijNiij.:: ::••:::::+: ••:: 0.080 o.065 0.080 :w.s J~iliV.trth H ···· 214.20 :J~eadtfL~i 'rn>::•::rn•·•••·•·••• 190 .00 285 .00 160 .00 :cmW:s /tn>••::•••====··· 200 .81 126.47 64.47 200 .81 126.47 64.47 365 .51 479.88 95 .62 135 .20 33 .00 52.73 veUt-Otaitftis ¥•••••••=•=· 2.40 Avg)ieiUWsF H :.::::: ... 1.82 3.79 1.48 1.49 3.83 1.22 5231 .7 6868 .7 1368 .6 135.31 34.54 52 .n :Ml'nch'Ei en):::••••••''' 268 .00 silaaU1bisa iti ..... 0.45 1.12 0.37 •AiP.ii a::·:::::::::::••:.:••::•••= 0.82 4 .23 0.55 :r{~ los S:(it }.:•=•:•·••••··· 2.83 2.41 0.15 1.97 1.08 0.15 Plan : Plan 05 RIVER -1 Reach-1 RS : 510 Pro fil e : PF 1 -·--.. ·--······ ......... . :E:G.Elelj(ft ):::::::=•:.:•:. ¢~alir1~ )®tifoB 215 .20 Element • ••''•''••,:=.••==, , ~~~:0:13: ••• 0.065 0.080 w.:s; :E 1ev en>•·•••••••==•'· 167 .00 124.40 133 .32 84.33 0 .001019 Ar~(5q •n f ::::.•u•• . . 135 .28 133 .32 84.33 :QTot8t {efs }?/ •===·==• 941 .00 flow(~sF /H' . 253 .38 543.27 144.35 216 .28 t<i ?Width fo f ......... 102.22 41 .00 73 .06 2.67 Av gUVeil ift/sF 1.87 4.08 1.71 3.25 1.15 11231.6 . c onv ~(cfs ) 3024.3 6484.4 1723 .0 102.44 42.95 73 .09 0 .58 1.36 0 .51 1.08 5.54 0.87 • rretn toss (tt>: • • • • • • • • • · 3 .31 2.91 0.36 2.31 1.22 0.33 Plan : Plan 05 RIV ER-1 Reach-1 RS : 632 Profile : PF 1 $::<3 t ~1 e~/(tt}: •••••••• •·•·• ............... 215 .75 • £!1e fiie iit • HH>• •••·•••·•••••••• • • ·t eitn s ::• fa1alir1l!I :·: :R!Q h!OB ................ ........... ..... ...... .. 0 .12 WC nNai/. •:: : .. 0.080 0 .065 0 .080 w.s;:e ieV(n>• ........ . 215.63 :R~tti L~Uttk .............. . 106 .00 122.00 115 .00 •f.'iow Area •tsC:inf :•••••······· 245.63 87.39 54.67 0 .003309 :Ar.~~ t~C11i¥:::•HU••::::::•:::••• 245 .63 87.39 54.67 543.67 323 .04 74.28 85.26 15 .00 38 .02 •vei t -Otai t fti si.••••••••••·· 2.43 Avii.veid riisi • 2.21 3.70 1.36 2.88 5 .83 1.44 16357.6 ¢~'iH6fSF •:••· · · 9450.8 5615 .6 1291 .3 114.41 Wetie if f!e b tit r ........... . 85 .51 18.55 38 .13 .:Mi'n cii'Ei cit)•••••••······· 0.59 0.97 0 .30 1.31 3.60 0 .40 i=rcin t oss (tt } ·•••••··· o.53 cum Voiu~(acre.tt) ····· 3 .78 3 .21 0 .55 2.54 1.30 0.48 HEC-RAS Plan: Plan 05 River: RIVER-1 Reach: Reach-1 Reacti River Sta : Pri)lilE! . ar6i~·.-M-.in-.•• -C-h-.E-,~. -•• -w-· :-s-: E-le_v_: ,-,---.,,._-~--,-,-e=· ·:c=· .. -~ S-fo-i>e-•.• -••• ,,,.. •• ~ •. ~V-et-c~h~n~r""•• r' •• -f~lOw-•.. -.,._-,..e=a~ ••• .,..,. -••• -,.-i)p=W-•.. -idt=h=··· ,,,,..,.,,.,....,,.~~~.....,, . •••· • ••• (crsj (rt)7 . (ni .. ·· • Wft> ······ .• (fils)/ (~ti)••••• n H (rtj / • • Reach-1 lo•· ·······••••• IP:Ff ·· Reach-1 .. lo .. • IPF2 941.00 941.00 269.60 269.60 270.73 271.17 270.73 271.12 0.071266 0.059206 5.83 6.80 199.66 14606 255.52 110.00 1.06 1.02 271.17 271.84 ··-.. 1~:::~~~ H"I~~~ .. 1~~~ .. "] ::~~~ ~::::[ ~~~~~I ~?~~~1 -~~~~~L ~::~!~~ ~:~ ~~:::1 ~~:::1 ill Reach-1 387 PF1 ·· --1-_--_-~~1~L -2~-8-.oo-_'-----l-----·-------Reach~l 387 . . PF 2 ---.. -----1 941.00 268.00 ------• I 0.34 21~:32[ __ ~.~~~?L _____ ~:~~l--~~?:~?J __ 19ooj ___ Q:32 220.92 ~?~:?~1-----·--1----~~~~j_____Q.oo488~ I 3791 39176 275.13 ~--1--..... ----94-1{io ---.. 269.001-275)i-3I ~--~-~_:_T~=-2752Q 0.00?~~1 4081 35m 216.281 0.401 (E!aCh:1 . :::: . 941.00 269.00 2?~.93 ___ __2_76.20 0.006607 4.45 237.73 66.00 0.39 ::;~~~~. 1:~~ • •• u:~} • .. ·•• ·------.. ----~; 941.001_ 261.201 21563L I= 215.75 0.003309 3.10 387.691 138281 0.211 9~1:~~L_3~1.2q_ ___ 2?~54j________ 276.65 0.002335 3.42 ___ 3?~6 8500 0.23 R!:!<1ch:1 Ff •.. -~66.oor-~10.001 276.3~=--t-__ 2?6.46 0.003513 3.10, 467.451 276.721 o.29, Reach-1 866.oo 210.00 2n.26! 277.53 o.005848 4.42 215.75 53.oo o.38 ,.::··~~<:-~:-~ } ................ ... . ......... .. . ........ ..... .. . Reach-'1 ••• Culvert I :1 • React1~1 •!99i) H IP:F:F/ •··• 1 866.001 211.101 277.351 214.51 I 2n.311 0.0001021 1.561 837.061 292.481 0.13 Reach:1 ·••· · 866.00 271.10 279.97 275.341 280.031 0.0008371 2.341 473.761 91.601 0.161 R~~cHW 866.00 274.50 280.22 280.22 281.09 0.027387 8.94 159.59 110.74 0.79 . .. .... . . . , ........ -........... , ........... . Reach~1 ·:· .1 mo :• PF2 •: .. .-.-· ·•:!:.=·· ··"·:::::+,• ..... ,,,., .. 866.00 274.50 280.80 280.80 281.74 0.026727 8.77 136.17 65.00 0.72 R~ac~"1 •• 13~4. :•• -·--·. -------~~, 866.oo 2n.20 281.86l____ 281.00 0.001425 2.26 642.40 263.99 0.19 R!!ach:1 866.00 _ ____I!._7.20 282.4~j____ 282.43 0.001062 1.8! 594.88 160.00 0.15 Reac~f 11504 : IP.F::f < 429.00 278.40 282.04 282.10 0.003693 2.10 230.94 159.36 0.27 R¢~~h"1 ••••• ,1~~ ; ; !lm~ffi 429.00 278.40 282.52 282.55 0.001561 1.59 302.94 149.70 0.18 Reach~1 • · .11643 H I/ .·· · Culvert >I·· .. ·.·• : HI.. R¢~ch"f'' l1ia2 •HP.Fi•:• . 429.00 279.00 286.18 282.45 286.21 0.000499 1.49 413.66 168.481 0.121 R~aGh~1 : ft~~ ......... pf.~': 429.oo 219.oo 286.23 -282.45 286.26 0.000528 1.55 373.89 138.34 0.12 React\~{ ·· 1953 · i'F'1 · ... ·. _ 429.~ 219.60 _-3~~.26,___ 286.29 0.000510 1.63 379.92 11s.46 0.12 PF2•: •'•• · 429.00 279.60 286.33 286.45 0.002018 2.73 157.14 27.00 0.201 ~---'--'-1---'----!i-'-'· ----'"' '---l----------·--------·-----I Reach-1 2041 PF 2 1Reach~1 · • j2041 ·· .. ·: IPi=:f: I 429001 280.401 ___ 286.301----1 286381 0.0013691 2.491 249.141 95.281 0.191 429.00 280.40 286.51 286.69 0.003122 3.44 126.83 24.00 0.26 -----·-- HE~R~P~:P~~ RW~RWER-1 R~~:R~c~1(Coo~u _~~)---~----~---~------~-~---~----~---~~ · Reacn )~iV:er~t~ ••· Pf(iti1~ ··• . a Total . Min en El .w.s . Elev crlt w:s: e:G. Elev ' . e.d: s1ope • \lei Chrii FlO\YAreii iopWiCltii j •• i='rolid~·~ch1 •• (cfs) (ft) (ft) . (ft) •·· • (ft) (ft/ft) (f\/s) .• ·. .•·. (~ ftj •·• (ft) • .... r---~--~-~--•• ~ •... ~.~.--.. ~ .... -,...,.;-=:7,.,,.--,,...,.--=-l-~~-r--~~--+--·---f-----~~--~--<-~--~--1-~~~-+-~~-~__,-~~--+------i :: ..... . 429 .00 281 .50 286 .61 286 .91 0 .009429 5 .21 121 .97 65.31 0 .47 429 .00 281 .50 287 .24 287 .96 0 .021343 6 .83 62.84 14.00 0 .57 ··•••··••· ··\·:1<••.>··· 429 .00 287 .00 291 .44 ReciCt\.:r ::.::: ·2591 : :·::·::::::: PF :1: -------r------+-----290.73 291 .80 0 .012130 5 .07 107.49 71 .93 0 .52 --------·-----·-·--------------·----·--------------- Reacn:t 269i PF 2 429 .00 287 .00 292.41 292 .65 0 .005153 4 .00 119 .06 35 .00 0 .36 -· ··--------------·-· ------------------------· . ---------.._ ________ HEC-RAS Plan: Plan 05 River: RIVER-1 Reach: Reach-1 Re~ch. I R~~:Sti::l:::::~~ru~ .;~J-:;:-~_-G-:E-l·e-v-.·.-,1-·:~-.·-.s-·;-~-l~-,,-.,~.~-~-,H-.~-~-,-. r~--.F-~-h-.L--~-.• ~-.,-,.,-:-6-.-·=e-·==-~-i-~-:~,:-:::-a-·L-e-n-.:-:1~:=-:a-·:c-.h-'iriijij~:1:.:ij!~~hi;::1::~~~1~::: Reach-1 (~~1.12l=~m73Clo.3~t (ft) . 1 · (cf:~~ (n~~~-~~ Reach-1 271.84 271.17 0.67 129.34 811.66 110.00 R~acli~f . .... r:r1 .. __ 273.52 273.47l= _ _Q.05r 2.33C __ 0:07I 471.541 464.841 4.61 I 287.431 Reachc1 ·· · · • : PF 2 · 274.44 274.35 0.09 2.48 0.12 213.83 727.17 114.00 -------------------------------·.:. ... ------t !·-·--·--l--·-·-.. -Reach~1 274.33 Reach~ 1 275.32 ----274.~1 __ 9:~c---~?~c--0_031 __ 365.51 4~:ni 95621 220.921 275.13 0.19 0.84 0.04 313.81 627.19 79.00 ·------------------Reach-1. 215.20 __ 215.03 --0.1?: ·-=--=-=-~~~ 0.01 253.381 543.211 144.351 216.281 Reach-1 · 276.20 275.93 ___ O~? ---·--0.84 0:03 __ 18~~ 756.ool 66.oo ------·-------------·--······ Reach-1 ·. ·=·· 275.75 275.63 0.12 0.53 0.01 543.67(_ 323.04[ 74.28! 138.28 Reach-1 ' -276~65 -276.54 ----~i~ ==-==~43~----0:03 471.22[_ 345.77 --124.02 85.oo 1~::~~1: /:i ....... :::11:~~ .. J ~;~:: Reach~1 : 1002 = Culvert . . . . . . . . . . . . . . . . . Rea¢hi1 199¢: •HHIP:F:F 277.37 R~~~~j : !~Ci •HHHHP.F'2 280.03 276.38 277.26 277.35 279.97 0.08 0.27 0.02 0.06 53.00 ~70J 0.011 493.571 372.43 0.81 l o.06 197.18 668.82 276.72 721.06 143.58 1.37 292.48 500.05 342.68 23.26 91.60 R~~ctH '=''. H~? f:f't > 281.00 280.22 o.871 o.31 o.34 116.48 568.34 181.18 110.14 Reach~1 · 1160 PF 2 '· 28~~ __ 280.80 ~.93 ___ -· o 3?_ 0.35 227.25 638.75 65.oo Re~ch'"1 281.90 281.86 o.E3 -E_:64 0.11 10.00 163.92 631.13 263.99 Re~~hT 282.43 282.40 0.03 0.52 0.18 147.97 718.03 160.oo ----·-....... ... . .. , ...................... ! ....... . Re.a .. c· "''1"· "" ·1·504:::::::::::::: P''"1: ............ · , ,•,.,.I~ . :: ·. '"' :::::::;::;: ::!°::: . .:::::::;;:·:· 282.10 282.04 0.061 0.19 0.01 0.00 370.90 58.10 159.36 R~~cll~l'c;"]15o4'•• Hif.>F2.•• >·• 282.55 282.52 0.031 0.12 0.00 353.50 75.50 149.70 ··•·. Reach~1 11643/ ' Culvert. . . -----I 1----~------lf------+-----4 0.03 168.48 34.74 -··-----·----· ------!--290.46 303.30 -· ----103.80 8787 37.83 138.34 Reach"1 286.211 286.18 -·-· --·25525 --286.2JE~ ci.ci3f-i--~--,--t-~'--.......C~.,.,..7.-:'-.,..;;.:.:-i-:'-.,...-'-t------I-------. ___ , t------1---,....-.,..-,.~,_,.,-.-...,,,....,,...,.+.,;..,-_~~------. ---+---------~=-c~~7"7"~~'4"':~~~77:":i·--2-8_6_.4_5 [===3~6.3~,--, __ 286.29 286.26 0.12 0.15 ·---1--·-. ~.08j om 0.03 0.03 Reacti-1: 286.38 286.30 0.07 0.07 0.02 28.86 18.22 253.64 429.00 297.68 2041 . . PF? . Reach-1 ~----'------'-----'--~:691__ 286.~~L___ ~!~ _____ ~.22 l_ ___ o:o3J __ _!~~? J 42?.23 146.51 113.11 115.46 27.00 95.28 24.00 HEC-RAS Plan : Plan 05 River : RIVER-1 Reac:~ach -1 (Con!_in_ue~d~)~--~-----~~~-~-·-----~-~-~~~~~~-~-~~ Reac:~·· ··Riverst~ . Pr~fi1~••· E.(3 .Elev W :S .E!~_.'!elHead Frctrit0$s c&ELoss aLen > ·.a¢hannei aRight •••· To/iWkftii · · .. · : (ft)·.· (cfs) •· · (cf~) · ...... (~fs) •• ••· .• (ft) .. · • .... (ft) (fl) (ft) (fti ·----.... Reach-1 .·· 2194 ••••.•··•. PF i 286 .91 286.61 0 .30 0.42 0 .12 67 .09 281.78 80 .14 65.31 . . . . . .. . . ...... . Reach~1 ·•• ••• ?194 • • • f'F2 · 287 .96 287 .24 0.72 1.00 0 .27 429 .00 14 .00 ------------............... : ........ ·········· : :·: .... : .····· ... t-------1--~--t--"-~---t-----·-,__ ___ _,______ -· Reach~1 2691 •• ·······• • PF 1 • 291 .80 291 .44 r-----i----.....,,..----1----..,---..,--..,--1------···--------------- Reach-1 • 2691 PF 2 292 .65 292.41 0 .35 0 .23 4 .85 0 .03 47 .18 373 .34 8.47 71 .93 -------------------·------------------ 4 .53 0 .15 21 .24 391 .26 16 .50 35 .00 Errors Warnings and Notes for Plan · Plan 05 Location : River: RIVER-1 Reach : Reach-1 RS : 2691 Profile : PF 1 Warning : The energy loss was greater than 1.0 ft (0.3 m). between the current and previous cross section . This may indicate the need for additional cross sections . Location : River: RIVER-1 Reach: Reach-1 RS : 2194 Profile : PF 1 Warn ing : The conveyance ratio (upstream conveyance divided by downstream conveyance) Is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections . Location : River : RIVER-1 Reach : Reach-1 RS : 2041 Profile : PF 1 Warning : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. Location : River : RIVER-1 Reach : Reach-1 RS : 1504 Profile : PF 1 Warning : Divided flow computed for this cross-section . Warning : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1 .4. This may indicate the need for additional cross sections. Location : River : RIVER-1 Reach : Reach-1 RS: 1384 Profile : PF 1 Warn ing : The velocity head has changed by more than 0.5 ft (0 .15 m). This may indicate the need for additional cross sections . Warn ing : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. Location : River : RIVER-1 Reach : Reach-1 RS : 1160 Profile : PF 1 Warning : The energy equation could not be balanced within the specified number of iterations . The program used critical depth for the water surface and continued on with the calculations . Warning : The velocity head has changed by more than 0.5 ft (0 .15 m). This may indicate the need for additional cross sections . Warn ing : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. Warn ing : The energy loss was greater than 1.0 ft (0 .3 m). between the current and previous cross section . This may indicate the need for additional cross sections . Warn ing : During the standard step iterations , when the assumed water surface was set equal to critical depth , the calcu lated water surface came back below critical depth . This indicates that there is not a valid subcritical answer . The program defaulted to critical depth . Location : River : RIVER -1 Reach : Reach-1 RS : 927 Profile : PF 1 Warning : Divided flow computed for this cross-section . Location : River : RIVER-1 Reach : Reach -1 RS : 632 Profile : PF 1 Warning : Divided flow computed for th is cross-section . Warning : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 I or greater th an 1.4. This may ind icate the need for add itional cross sections . 1 Locat ion : River : RIVER-1 Reach : Reach-1 RS : 387 Profile : PF 1 Warn ing : Divided flow computed for this cross-sect ion . Warn ing : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 I or grea ter th an 1.4. This may indicate the need for additional cross sections . Locat ion : River : RIVE R-1 Reach : Reach -1 RS : 215 Profile : PF 1 Warn ing: The conve yance ra ti o (upstream conveyance divided by downstream conveyance ) is less than 0.7 or greater th an 1 .4 . This may indicate the need for additional cross sections . Warn ing : The energy loss was greater than 1.0 ft (0.3 m). between the current and previous cross section . This may indi ca te the need for additional cross sect ions . , Locat ion : River : RIVE R-1 Reach : Reach -1 RS : 0 Profile : PF 1 Warning : User spec ifi ed wate r surface is not poss ible for the specified flow reg ime . The program used crit ica l depth as the sta rt ing water surface . FEMA -Trib to Burton Creek Plan: Plan 05 11/24/2004 ----------------------RIVER-1 Reach -1 --------------------- g c 0 ~ > Cl> w 290 285 280 275 270 0 1 in Horiz . = 400 ft 1 in Vert . = 4 ft 500 1000 1500 2000 2500 3000 Main Channel Distance (ft) Legend WS PF2 WS PF 1 Ground s . c .Q iii > Ql w 285 280 275 270 0 1 in Horiz . = 50 ft 1 in Vert . = 3 ft 100 FEMA -Trib to Burton Creek Section 387 200 Station (ft) Plan : Plan 05 11/24/2004 300 400 Legend WSPF2 WS PF 1 Ground • Bank Sta Encroachment g c: 0 ~ > QJ jjJ 285 280 275 270 FEMA -Trib to Burton Creek Plan : Plan 05 11/24/2004 Section 510 +----~--~-.,....-------,----r--·-i-----~-~~-~-~---~--~-~--~--..---~--~--~-~---,--~ 0 100 200 300 400 Stat ion (ft) 1 in Horiz . = 50 ft 1 in Ve rt . = 3 ft Legend WS PF2 WS PF 1 Ground • Bank Sta Encroachment .. Proposed Conditions Model (P.C.M.) Plan : BCT-RCB RIVER-1 Reach-1 RS : 632 Profile: PF 1 0.080 0.065 0.080 106.00 122.00 115.00 256.64 89 .30 59 .63 256 .64 89 .30 59 .63 546.36 316 .31 78 .33 88 .16 15 .00 40 .05 2.13 3 .54 1.31 2.91 5.95 1.49 10054.9 5821.1 1441 .5 88 .43 18 .55 40 .16 0 .53 0.89 0 .27 1.14 3.14 0 .36 3 .69 3.87 0 .55 2.47 1.43 0.47 Plan: BCT-RCB RIVER-1 Reach-1 RS : 632 Profile : PF 2 0.080 0.065 0.080 106.00 122.00 115.00 201 .63 100.21 70 .45 201 .63 100.21 70 .45 470.87 347.65 122.48 45 .00 15 .00 25 .00 :V.eiT.otai:Ws>.:ti:::: :: 2.34 3.47 1.74 4 .48 6.68 2.82 9554.2 7054.1 2485.1 49 .48 18 .55 26 .92 261.20 :st1eaH(i&Sq :itw::::::::m:::••• 0.62 0.82 0.40 1.44 2.84 0.69 nr:r:~fo:(~~~:tt:m •··········· 1.47 4 .93 0.09 0.52 1.43 0.03 Plan : BCT-RCB RIVER-1 Reach-1 RS : 554 Profile : PF 1 •s;G;•i;iW •ttt)•U 215 .45 ·E1ement •·••••rn•rn••r:••·••·trt•rn·•••·•@tt :o~ •••••H c~riii~l JJ Rl9h~toe.: Ve!Hli~drn h .... 0 .12 \vt~va i m••••••••••••••••••••:n 0 .080 0.065 0 .080 Wtsi E:ieVtiiH • · 215 .34 ReaCti terd ni ••••••••••••••••m 20.00 20 .00 20 .00 ••~HfW'.$~<~l < ... ..... !Fib.WN~~(S.q !~fr ••r••t:.•• 166.57 145.74 107.98 166 .57 145 .74 107.98 281 .00 500 .95 159.05 104.35 41 .00 83 .06 1.69 3.44 1.47 1.60 3.55 1.30 4219 .6 7522.6 2388.4 104.58 42.95 83.09 0.44 0.94 0.36 0.74 3.23 0 .53 3.18 3.54 0 .33 ·c. &•e:toss<th :•••••••· 0.08 :cum sAia&e:sn• <t•••••••• 2 .24 1.35 0.30 Plan: BCT-RCB RIVER-1 Reach-1 RS : 554 Profile : PF 2 :e:Jti leievtn>>••·••••····· 216 .11 eiement•:••••r::::m•:••r r•:w :••••••••t :e1to:s •••:•m tMnnel •••••:RfoBfos • v~18.~@·(tt t u••·••> 0.29 w~:~w~w ••t•.•·•••••••n:••••::•: 0.080 o.065 vts./gfW:@ : · 215 .83 R~ijiji t~fotfu:::::::::::U:J• 20 .00 20.00 20.00 #rttW;$Nn)••••••••··· •filOWAf~at$(1fft ••l••••••••• 65.37 155.98 iMlrl.CbLet (it)t:•::•.:•·•·· 269 .oo •S.H~aFObi$~:M ::::: ::::::•:•:} 1.os 1.63 Plan : BCT-RCB RIVER-1 Reach-1 RS: 532 Profile : PF 1 40 .00 40 .00 40 .00 235 .31 67 .03 440 .79 73 .93 941 .00 60.25 99 .00 59 .27 vei T.6fai Ws>•·•••••••··· 4.oo •Av9 ive Wtnrs f • r •········· 4.00 5.35 16450 .3 ·:CPrW?(¢f$))•:•::? •••••••/•••••• 16450.3 44 .00 MiilncBE!ltib <•·•·••••······ 259 .10 :silear(ibi.SQ·ror•••••.•••t••••• 1.09 4.37 3.12 3.41 0.29 2.20 1.32 0.27 Plan : BCT-RCB RIVER -1 Reach-1 RS : 532 Profile : PF 2 WiH.eiiii(fi f ......... . 0.19 WChlV.iii / >• · 0.065 Wis/eievtiii •••·••••···· 215 .79 ReaCh t eilH nE .. : :n:v:: 40 .oo 40 .oo 40 .00 o tbiait~rs ~i>••····· 941 .00 F~{crsF ••••+•••••••••••••m 941.00 :to?wiCittiti.ti H•••······ 99 .oo :toriWidiiHn>trrrrmmm• 99 .oo 3.51 6.09 20454 .8 44 .00 0.81 2.83 1.13 4.40 c. & E:t oss.ifh •·········· •cum sA:<a&esi •• •········· 0.43 1.32 Plan : BCT-RCB RIVER-1 Reach-1 RS : 493 Profile : PF 1 tEiii t:EieYtn>:::•••:=mr: 214 .89 teiemeiW• ••••••t •••••••••••m::r.m••rn•t~n b'i;i •••.••'•'ch.86Ml t t 8latlto s• ••v@B~@ irtr:::•.•:::••::: 0.28 •w.t.mv~1;•••m mmm••••mm •t o .oos 64.00 107.00 64.40 220.44 90 .00 381 .56 47 .89 941 .00 81 .84 92.00 43 .58 4 .27 5 .01 14729.1 44.12 1.27 5 .44 3 .05 3 .03 0.23 2.14 1.23 0 .22 Plan : BCT-RCB RIVER -1 Reach-1 RS : 493 Profile : PF 2 g1 <,t$1 ~~@n •: .... 215 .67 ·~i ~ful$W ••••m:::•:••••m••:::·:::••=··•••·•t.~n•P:il •n••••¢t:ta~H~1 •••••ij19:f*¢$• 0.21 •WW&:Vijc ::•r: ? •: ::::::::·•·• o.065 64.40 :cHtw JsYC ib : ......... . 212 .01 Tf:id.WAf.ea:tscrro::•n:•::::::•> 258 .08 Q •T~\ijlW~~·:.::.+:.:.:.:.:·•·:• 92.00 .•f~p wtdt tt•ttt>••••••••••••rn•••rn 92.00 3.65 ·•Aval'SJei dffis ):::::•:u::t•••••• 3 .65 19155.2 :OQrW~{M$H•m•::·m····••I ••r 19155.2 Mincti £itnY•:n••:••••• 269 .50 ·:she ar (lbiS<i •itJ •:::•:=::mr •::: o.88 •:c & E U:i~~(fi).•:::::•·••· Plan: BCT-RCB RIVER -1 Reach -1 RS : 387 Profile : PF 1 190.00 285.00 160.00 202 .18 126.80 65.01 202 .18 126.80 65.01 366 .20 478 .74 96 .05 135.72 33 .00 52 .92 1.81 3.78 1.48 1.49 3 .84 1.23 5277 .1 6898 .9 1384.2 Vtengih WtcL(.ri )i••·•··· 236 .03 :we.tteci ••i?eLcii):::•·•·::::::n::u: 135 .83 34.54 52 .97 0.45 1.10 0 .37 0 .81 4 .17 0 .55 •.•tictnt:O s$ @ :·••••••··· 2.84 2.41 0 .15 • ¢ & Eit os&c n}•·•••·•••••· 1.98 1.08 0 .15 Plan : BCT-RCB RIVER-1 Reach-1 RS : 387 Profile : PF 2 :EJci iE:ieVt«>•.•.•.:.: ·········· 215 .34 :Eiemeilt ••••••••••••••••••••t:•::.• mt•••t~i'fo:e :•••::•::¢&aifoei ::m•:Ricif.ifos • ••WiYie@(n)'•t•·m•u: 0 .19 •w~hww •••••••••••rn•t••••t:. 0 .080 0.065 190.00 285 .00 160 .00 131 .08 157.70 131.08 157.70 314.65 626 .35 46 .00 33.00 2.40 3.97 2.85 4 .78 4703 .1 9362.2 48 .82 37.68 0.75 1.17 1.80 4 .64 1.03 3.19 0 .39 1.08 Plan : BCT-RCB RIVER-1 Reach-1 RS: 512 Culv Group : 48" RCP LEFT Profile: PF 1 :ri cutv:Gfoo?:tc:rs}tt' 64.68 :&1w:1tuii:te1'ftrih::m::·:mm 38 .33 :iot~ri'~w m::::::r::::r::'•• 1 :¢~ifVe!V$Ws>.•••::'•••tt 5 .15 :&:e.~r:r~nMw r:m:rn::::: 64 .68 :®1VV¥P.$:(t1M:::rr::::: 5 .15 re;r;)u snnvt::::= tu· 215 .30 :;¢iliffokEi JJP.crtn::m:Jt 211 .00 Wlsi Ust {fiHtH ····•••:t 275 .05 }ci'.il\i.frliiEf :on lri fl:t:::::i 270 .50 ::tt;¢t!lf.l$•·(~F ::::::rum ,,: 214.89 •¢P:W!Fffi:tB •wnm ·:=:mw:rm o.40 w:sros •ttO ••:::rnr::·:: 214.60 :c!!iwaww~:@::::::r:r: 0.13 : tieit~•·E:$Wi)tr::::.::::rn: o.42 :¢Vw ehttt:o¥~'ttt)f:::::::::: 0.21 :.oe1taW~ (nn :::::=mmr:. o.44 :oweiNcrsf:: :::m:r::w::m Plan : BCT-RCB RIVER-1 Reach-1 RS : 512 Culv Group : 10X7 RCS Profile: PF 1 :cf cuw GfouP.:tcrsYtH 811 .63 •ciJw ifoii t eri trtrm:::••/:m 5.53 5.30 269 .70 wtsmJst trin::m:••::m::. 215.05 •••ctliV:'init Ei oH tnY.m:•·•mm • 269 .50 0.03 0.15 0.24 2.83 Mi fr eiW~JiF:ioW (tt}:f:/ 281 .55 Plan : BCT-RCB RIVER-1 Reach-1 RS : 512 Culv Group : 48" RCP RT Profile: PF 1 •acuw.~foufr<C:rsJ tr 64 .68 •ciiwitWEt~1nfti ''t•tmmr 38 .33 215 .oo :weirMaxoeP.lhiii:fr::•Jt 2.43 MlriEtwel H#i&vt @•f:: 281 .s5 Plan : BCT-RCB RIVER -1 Reach-1 RS : 512 Culv Group: 48" RCP LEFT Profil e: PF 2 Jicutif.afoJp(crs}J:n: 56 .01 •¢~W~Wt~n•tttN•tu::mr 38 .33 ¥$~rreiM •••·••rn•mt•••·i:•• 1 .•®.ifVeJpj$•(M Hm••••rnrn 4.46 :¢•e~rM •cM$trnrrn=••••· 56 .01 •cWv&ettt$J WM•k•••••·rr 4.46 :•$:t~r osrtriVrn=t••••••t• 215 .99 •=a!1t%WeiliMriH•rn:••:=rn: 21 1.00 vifif:us rtfi v•.::rm+.<• 215 .79 .••¢tiivJi'ME:f•oa:tit>t•••••m •: 210 .5 0 ¥1¢/P.$tfiFU•'•t••:·:•:n 215 .61 :¢~W:itfoWl®@Mff••tt 0.01 i:\&i$.ros.:ittn•••rm•n::::: 215 .46 •®.W :$!Wt.~$~:tftt•ntn••••• 0.1 o ::o~iiWE$'(fi}. f••••••::r:• o .32 ·~W¢hlft:C%.i •(ftfr:k''Ul 0.1 s :ceitll•Wsifi t •·••rn•·:•:.;·• o.33 'oWe idcrsi. •tr•••••••••••••·: Plan : BCT-RCB RIVER-1 Reach-1 RS : 512 Culv Group : 10X7 RCB Profile : PF 2 •J.tculVG.fou!l (crsi • • •·• •·• • 828 .98 .•&Ji~/#ulltenJri F••u.••t.•••• ¥$.¥liet~•t':'•=H••••••·:::: 3 •¢iiWVeU:J$(/fM !••t•/••::• 4 .8o J:t:e.~rr~rte.t$>tu•·· ··· 216 .33 :c'4W:Ve:tP.~Jw$>.••••••t ••r 4.64 • Ei3.rUs fa ft#:? : : ::···· 275 .99 •ciiWiB~siU#tiW?•····•m: 269 .70 Wls/Ust<riHt••···•::•·H·· 275 .79 •cu&i6W¢itfol ri kJ•Htfo 269 .50 /$:¢:•¢s·@/}f:•••••: :::•:•••• 215 .61 ·J~~W1fr~tfo@JM '''?:•:••tf• 0.02 w ;s/d$T(i'ij' ......... , 275 .46 •t:U.W$.(ffit.Q.$!f(tth••NN••i 0.13 i %itiDt&HW ••••)•:r••·. 0.32 •®.WE)ilfl~~fan •••••n:m 0.18 oeiiliW~t(n b ''•••·•• ········ o.33 •aweidcfB:i 't ••=·::.•m••m . •• Plan: BCT-RCB RIVER-1 Reach -1 RS : 512 Culv Group : 48" RCP RT Profile : PF 2 HtcurV:G.foGP. tcrs.1 ::::::: 56 .01 :crn;;n:m ii tenXrl V<t::::::m 38 .33 •W!$~~e1~:::::::::::::rm:::::: ·'°C#iv.Y.!ij®.•(ttM:rn::::'==r: 4.46 Hir i:rnmH•@~if •:m::?:J\ 56 .01 \¢µMVeJP$X W.$)f{f:fr 4.46 )td/Usdrt> ... :::::=:::=• 215 .99 cui"=Jfrti§i'u~tri)Jm ·m=:= 211.00 Wlsrt Js t:.(n}.::::::m::rrn 215.79 'Ciitv.16v E5f :onJ~E m•''<:r 210 .50 ::g;¢t•p$t~r ••=::rn::J••m•· 215 .67 ·:-c#~i:fifo.Vf~@ ••:m::::'r: 0 .01 W~s/b$(tiL •••••::r::J:: 275.46 ®.We~W@~~·@ ···::::::::rn 0.10 ::tfoffii i;&tn ~: :rt:::::? o.32 :euw:e&rtU.i :cnwm=:w::; 0 .15 tieiiliSi;is••{n¥.t::m:r::::r o.33 ···owei dct:s.J:::=:::r::==m:m :: 2.25 :Mtff EiWe if¥iowtrtF m: 281 .55 HEC-RAS Plan : BCT-RCB River : RIVER -1 Reach : Reach-1 ':0R ~acti < • R"iVei; Sfa . -···-•••••• : ti T~t.3H • Min c.;lii;11 :·:: WS ~ f:le~ • ~rlt\fi.i ~S./ > i::,o ; El~\i : ~:<'i.n S.lope •VelCiin l :.:.: >FliiwAreii : T,~p)\'lifttj ) • Fi'OiiM'M cii1 \ • / < > •: : I < : : (CiSf H: :: :: 'Cffl U: : + tli fr /:\ ciif k ··· ·· ···· :(lt)H :: • .. : <Ntt f ( : : <fiis}: :: r (~n)}•• • :«ti ::::: /. : Hi ·· ;;:::::• ::;~:: :,:::~ . ~i ; !" ' :: : ;: : ;;: ;: ~: ;: ;;: :: ~ :~: :: :: : :~~ : : Reacil·if :::: •:: 2.1s . '~~·1 :: 941 .00 268.00 213 .47 211 .96 213.52 0.002380 2 .19 574.60 287.43 0 .23 R~act;;; HH ii~ y .. Pfi> 941 .00 268.00 274 .35 274 .44 0 .002427 2.60 396.20 114.00 0 .24 ITITill.2I~· ~····=r,~···~>cr··===t===t==r==r===t===t===t===t===t===J ·Reach-'f ::::::: 387: ••••·•••••••••• • P.F T •········ ..... . .. .. . ..... . R~acW;f + $ii.H :: +: > }) yy:·: :::: ....... Rea ~f,fJ ::? s3i : : : PF F Reacit.t / ) ~2 :: j C/ PF2 > ::: ? ····· •:• ::::•:·· ::•• ............. :::::·:: e< 55 :-: P.F •2(i':••·•'"''· / i ) > ··+:::··· ReactJ::t •:•::?1921 ·:::::=::::::· Re~~Hm · // '7.7: • :: !P 2 \ y H :: ... 941 .00 941 .00 941 .00 941 .00 Culvert 941 .00 941 .00 941 .00 941 .00 941.00 941 .00 866.00 866.00 866.00 866.00 268.00 268 .00 269.50 269.50 269 .70 269 .70 269.00 269.00 267.20 267.20 270.00 270.00 271 .10 271 .10 274 .21 275 .14 274 .60 275.46 275 .05 275 .79 275 .34 275 .83 275.75 276.48 276.43 277.23 277.36 279.96 272 .01 272 .01 272 .12 272 .12 274.51 275.33 274 .34 275.34 274 .89 275 .67 275 .30 275 .99 275.45 276.11 275 .86 276.60 276.51 277 .50 277.38 280.02 0 .004816 0 .004476 0 .004082 0 .002413 0 .003272 0.002116 0.004435 0 .007185 0 .002953 0 .002429 0 .003250 0 .005985 0 .000691 0.000841 3 .78 3.97 4 .27 3 .65 4 .00 3 .51 3 .44 4 .57 3.54 3 .47 2 .99 4 .45 1 .56 2 .34 393.99 288 .77 220 .44 258 .08 235.31 268.17 420.30 231.34 405 .57 372 .29 482 .41 214 .17 841 .42 472 .82 221 .64 79 .00 217 .41 92 .00 218.53 99.00 228.40 66.00 143.21 85.00 280.80 53.00 292 .63 91 .48 0 .34 0 .32 0 .34 0 .27 0 .30 0 .25 0 .32 0 .40 0 .26 0 .24 0 .28 0 .38 0 .13 0 .16 R•£Wk % l~-+···17~:+,F::t.:•1,:;,:;;;•••7~·*'.,+ ... "" .. t---:-:-:-:-t----:-:-·~-:+---:-:-:-:-:t---~-:-~_:!_~t---::-:-·~-4+---:-:-:-:-:-:-t----:-·~-:-t---~-~-:-:-:t---:-:-:-:--r-----:-:1: Re~~Mf : H 1~:=: •.. : i?F2 < · ··· ... 866.oo 211.20 282.40 282 .43 0 .001062 1 .81 594 .aa 1so.oo 0 .15 •+ :.::: .. :n••tt\/' 429.00 278.40 282 .04 282 .10 0 .003693 2 .10 230.95 159.36 0 .27 429.00 278.40 282.52 282 .55 0 .001561 1 .59 302.94 149.70 0 .18 HEC-RAS Plan : BCT-RCB River : RIVER-1 Reach : Reach-1 (Continued) Reach ••••• • R1vei:st1 / P..iofiie ••••• a t otal ••·•·· Miii clii:t •· w :s>Elev •• critw :s: ••• i:::ct Eieif: •• •::s:c;: $1cipii •• :V.elCliiit • •••f1wiAiea ? tap:Widri:t• • :F.r<iii&i:t. c~r : • • > • + > < <ds) / < (11) <> • iii { : < {it> ··· Yc1t>• • • cit.in) >> > (fVs>•r ••• •'•nSi:J:tt) ••• / ittY < :::: •> ·· · · •••••••••••••••••••••••••• R~~~ii:'F ::?!•••?•.•·•••··· R~~~Wt .H•t ~:i$4 ••• HY f'r~H /' ;;;;;;;;;;.;.;;.;;;.··· ........ . ...... · ... -.·-:-:;:;.·:· . :::·· ''.:'.'.'. R~aci}j f:<.:: :••1269tt• :•••f:'F1 R~~~w~w ·· r ~~Lr \( PF 2U Culvert 429 .00 279 .00 429.00 279 .00 429.00 279.60 429 .00 279.60 429.00 280.40 429 .00 280.40 429.00 281 .50 429.00 281 .50 429.00 287.00 429.00 287 .00 286.17 282 .45 286 .20 286 .23 282 .45 286 .26 286 .25 286.28 286 .33 286.45 286.30 286.37 286.51 286.69 286 .61 286 .91 287 .24 287 .96 291.45 290.73 291 .80 292.41 292 .65 0 .000503 1 .50 412 .18 168.17 0 .12 0 .000528 1 .55 373 .89 138.34 0 .12 0 .000513 1.64 378 .98 115.32 0 .12 0 .002018 2 .73 157.14 27 .00 0 .20 0.001379 2 .50 248.39 95 .08 0 .20 0 .003122 3 .44 126.83 24.00 0.26 0 .009497 5.23 121.61 65.21 0 .47 0 .021343 6 .83 62 .84 14.00 0 .57 0 .012072 5 .06 107.72 72 .04 0 .52 0 .005153 4 .00 119.06 35.00 0.36 HEC-RAS Plan: BCT-RCB River: RIVER-1 Reach: Reach-1 R.~ii<;IH IO 271.12 270.73 0.39 458.661 475.261 7.08 255.52 R"eadih ••• 271.84 271.17 0.67 129.34 811.66 110.00 I I ~eachc1 213.52 273.47 0.07 471.54 464.84 4.61 287.43 . ············. ······i··· ..... ... I I I I I I I I I I . .. ······ .... .......... . .......... . ~:.'"" ''T1~ Jlmm~ :mm 27444 274.35 Rea~h~t + ~TH •: > PF1 • :: 0.12 213.83 727.17 114.00 0.05 366.20 478.74 96.05 221.64 274.34 274.21 ~~~~h~)• <••··•l®-7:: YH::::n· Ipf~· ••••••··• 275.34 275.14 Reacil~i<•••• P:~1\L ? I 274.891 274.60 1'Reai::n01• ::-:::.:.:::::·:'.::::::.:.:.: R~~¢h~i: ••• •:1 ;n~ ~~~~;;;; ls32. ·. <m::;fr#H :··· R~~¢h~1• t• 111$~~ :niFln!'il~ff~:•.·••••-•···:•· R"eaBfi~tnt·: R~~~~1.•·•nt ssi( ••••):••:•:: P:F.:. .. R~ii¢@•·•<>1 ~~r:rn:unr••t ef;'.:1·•••···•·'···· · ········ ReaciJµt :: ll~~!i!! ::·:rn··•·1~i;2m>•• · ·· R~~ch~1n•.• :1927:'''''· ··· -2 R~ii¢hd/ •:)1$~7U 1i::2::::.::··· ··················::::r··········· R~~8h~~i· i i. ~~·, ····:•· R~ii¢@•:•utl~:rn:::••:tt:IP.ft:••·•··•••··· l•w{t1~ri1~1= .... ::1.100:2•••·••••••• ·········· l!'"'""rio"~·· ?? ti®•/··:::,, .Pf; Riiii¢@ ••> 11®/• :• •• •• Reacilh: Y/ 1~~4:\: :::::: ~~~gh~~l\ :nl1~4::::::.::::1P:w~:1.:: !!! ... Culvert 275.30 275.99 275.45 276.11 275.86 276.60 276.51 277.50 Culvert 277.38 280.02 281.09 281.74 281.90 282.43 275.05 275.79 275.34 275.83 275.75 276.48 276.431 277.231 277.36 279.96 280.22 280.80 281.86 282.40 0.25 0.19 0.12 0.08 0.29 0.07 0.11 0.41 0.12 0.45 0.08 0.64 0.27 0.84 0.02 0.06 0.87 0.30 0.93 0.37 0.03 0.64 0.03 0.52 0.06 314.65 626.35 79.00 0.12 941.00 217.41 0.01 941.00 92.00 941.00 218.53 941.00 99.00 0.08 281.00 500.95 159.05 228.40 0.06 182.00 759.00 66.00 0.00 546.36 316.31 78.33 143.21 0.03 470.87 347.65 122.48 85.00 0.01 500.35 365.65 280.80 0.06 197.05 668.95 53.00 721.39 143.22 1.40 292.63 500.10 342.77 23.13 91.48 0.34 116.48 568.34 181.18 110.73 0.35 227.25 638.75 65.00 0.17 70.96 163.92 631.13 263.99 0.18 147.97 718.03 160.00 HEC -RAS Plan : BCT-RCB River : RIVER -1 Reach : Reach-1 (Continued) 0 .19 0 .01 0.00 370.90 58.10 159.36 R"each h : 11504 .•· 1PF.2 . 282 .55 282 .52 0 .03 0.12 0 .00 353.50 75 .50 149.70 Culvert 286 .20 286 .17 O.Q3 103 .66 290.83 34.51 168 .17 286.26 286.23 0 .03 87 .87 303.30 37.83 138.34 I•> ., •:n •w:n••n••••t:t•• •••••••••.nn•.,••••• 286.28 286.25 0 .03 0 .08 0 .00 28 .78 253 .83 146.38 115.32 286.45 286 .33 0 .12 0 .15 0 .03 429 .00 27 .00 286 .37 286.30 0 .07 0.07 0.02 18.18 297.94 112.87 95.08 286 .69 286 .51 0 .18 0.22 0 .03 1.77 427.23 24.00 286.91 286 .61 0 .30 0 .43 0 .12 66 .94 282.10 79.96 65.21 287.96 287.24 0 .72 1 .00 0 .27 429.00 14.00 291 .80 291 .45 0 .35 4 .86 0 .02 47 .36 373.14 8 .50 72.04 292.65 292.41 0.23 4 .53 0 .15 21 .24 391 .26 16.50 35 .00 Errors Warnings and Notes for Plan : BCT-RCB Location : River: RIVER-1 Reach : Reach-1 RS : 2691 Profile : PF 1 Warning : The energy loss was greater than 1.0 ft (0 .3 m). between the current and previous cross section . This may indicate the need for additional cross sections . Location : River: RIVER-1 Reach : Reach-1 RS : 2194 Profile : PF 1 Warning : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections . Location : River : RIVER-1 Reach: Reach-1 RS: 2041 Profile: PF 1 Warning : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections . Location : River : RIVER-1 Reach : Reach-1 RS : 1504 Profile: PF 1 Warning: Divided flow computed for this cross-section . Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections . Location : River: RIVER-1 Reach: Reach-1 RS : 1384 Profile : PF 1 Warning : The velocity head has changed by more than 0.5 ft (0 .15 m). This may indicate the need for additional cross sections . Warn ing : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections . Location: River : RIVER-1 Reach : Reach -1 RS :1160 Profile : PF 1 Warning : The energy equation could not be balanced within the specified number of iterations. The program used critical depth for the water surface and continued on with the calculations . Warning : The velocity head has changed by more than 0.5 ft (0 .15 m). This may indicate the need for additional cross sections. Warning : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections . Warning : The energy loss was greater than 1.0 ft (0.3 m). between the current and previous cross section . This may indicate the need for additional cross sections . Warning : During the standard step iterations, when the assumed water surface was set equal to critical depth , the calculated water surface came back below critical depth . This indicates that there is not a val id subcritical answer . The program defaulted to critical depth . Locat ion : River : RIVER-1 Reach : Reach-1 RS : 927 Profile : PF 1 Warn in g: Divided flow computed for this cross-section . Location : River : RIVER-1 Reach : Reach-1 RS : 632 Profile : PF 1 Warning: Divi ded flow computed for this cross-section . Location : Riv er : RIVER-1 Reach : Reach-1 RS : 532 Profile : PF 1 Note : Mu lti ple critical depths were found at th is locat io n. The critical depth with the lowest, valid , energy was used. Location: River : RIVER-1 Reach: Reach-1 RS : 493 Profile : PF 1 Note : Mu ltip le crit ical depths were found at this location . The crit ic al depth with the lowest , valid, energy was used . Location : River : RIVER-1 Reach : Reach-1 RS : 387 Profile : PF 1 Warn in g: Divided flow computed for this cross-section . Location : River : RIVER-1 Reach : Reach-1 RS : 215 Profile : PF 1 Warn ing : The conveyance rat io (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. Warn ing : The energy loss was greater than 1.0 ft (0 .3 m). between the current and previous cross section . This may indicate the need for additional cross sections . Location : River: RIVER-1 Reach : Reach-1 RS : 0 Profile : PF 1 Warn ing: User specified water surface is not possible for the specified flow regime . The program used critical depth as the start ing water surface. 295 290 285 g c ~ 280 > Ql jjj 275 270 FEMA-BC W/ 3-10X7 RCS -RAISED SC -ASBUILT Plan : Duplicate Effective Model+3-1 OX7 RCB 1118/2005 -----------------RIVER-1 Reach-1 ----------------- 265 -l---r-~-,---~~-~~----.---~----.----,------.----,----r-~-,---~---.--~~----.--r---~----.---.--r---r---.-,---~---.----, 0 500 1000 1500 2000 2500 3000 3500 Main Channel Distance (fl) Legend WS PF2 WS PF 1 Ground 280 278 276 §: c .Q 274 ;;; > Cl> iii 272 270 FEMA-BC W/ 3-10X7 RCS -RAISED SC -ASBUILT Plan: Duplicate Effective Model+3-10X7 RCS 11/8/2005 Sect ion 387 ----------.OB ----------r-.065 ~f---------.OB --------~ 268 -1---~-~------~-~------~-.w~------~-~---.....---...----,.-~------, 0 100 200 300 400 500 Station (ft) legend WSPF2 WS PF 1 Ground • Bank Sta Encroachment §: c: .Q n; > Q) iii 284 282 280 278 276 274 272 270 FEMA-BC W/ 3-10X7 RCS -RAISED SC -ASBUILT Plan : Duplicate Effective Model+3-10X7 RCB 11/8/2005 Section 493 ~---------.08 ---------------.oos ----i>K-----.oa ----~ 268 +--~~-~-~--,--~~-~-~--,--~~-~-~--,--~~-~-~--.--~~-~-~---, 0 100 200 300 400 500 Station (ft) Legend WSPF2 WSPF 1 Ground • lneff • Bank Sta Encroachment FEMA-BC W/ 3-10X7 RCS-RAISED SC-ASBUILT Plan : Duplicate Effective Model+3-10X7 RCB 1118/2005 3-10X7 RCB & 2-48" RCP ----------.os --------------_055 ----i~----.os----~ 284 282 280 278 g c .Q 276 -;;; > Gl w 274 272 270 268 -+--~---,------~---,------~---,------~---,------~--~-~---. 0 100 200 300 400 500 Station (ft) Legend WSPF2 WS PF 1 Ground A lneff • Bank Sta Encroachment FEMA-SC W/ 3-10X7 RCS -RAISED SC-ASSUILT Plan : Duplicate Effective Model+3-10X7 RCS 11/8/2005 3-10X7 RCB & 2-48" RCP ~-------.05 -------------.055 -----------.05 ------~ 284 282 280 278 g c 0 276 ~ > Q) iii 274 272 270 268 +----~~-~-----~~-~-----~~-~-----~~-~-----~~-~-~----, 0 100 200 300 400 500 Station (ft) Legend WSPF2 WS PF 1 Ground & lneff • Bank Sta Encroachment §: c .Q n; > Cl> w 284 282 280 278 276 274 272 270 FEMA-BC W/ 3-10X7 RCS-RAISED SC-ASBUILT Plan : Duplicate Effective Model+3-1 OX7 RCB 11/8/2005 Section 532 ~-------.05 --------------.005 -----------.oa ------~ 268 +--~~-~-~--,--~~-~-~-.--~~-~-~--.---~~-~-~--,--~~-~-~----, 0 100 200 300 400 500 Station (It) Legend WSPF2 WSPF1 Ground .;. lneff • Bank Sta Encroachment g c .Q iii > Cl> iiJ FEMA-BC W/ 3-10X7 RCS-RAISED SC-ASBUILT Plan: Duplicate Effective Model+3-1 OX7 RCB 11 /8/2005 Section 554 =Section 510 Effective Model ~--------.05 -------------.065 ------------.08 282 280 278 276 274 272 270 268 ..l--~--~-~--r--.--...,.----~--~-~--r--.--...,.----~--~-~--r--.--...,.--~-..., 0 100 200 300 400 500 Station (ft) Legend WS PF2 WS PF 1 Ground • Bank Sta Encroachment KLING ENGINEERING & SURVEYING Consulting Engineers • Land Surveyors 4101 Texas Avenue, Suite A Bryan, Texas 77802 Memo: B.J. Kling, P.E., R.P.L.S. S.M. Kling, R.P.L.S. Telephone 979/846-6212 Fax 979 / 846-8252 To : City of College Station -Development Services Development Engineering From : B.J. Kling Post Office Box 4234 Bryan, Texas 77805 November 8, 2005 Re : DP-Gateway Phase 2-4 Creek Crossing, Case #04-00100036 Revised Culvert Configuration The purpose of this memo is to document the water surface elevation for the Tributary to Burton Creek before and after proposed construction of the culvert crossing . The previous submittal provided for 3-1 O'x?' RCB culverts. The current submittal adds 2-48" RCP culverts to the crossing to meet the "Zero Rise" floodway requirement. Current and future development within the area has and will require the placement of fill in the floodway fringe as allowed by FEMA. Initial CLOMR-F(s) have been filed and accepted for this action. A final LOMR-F , which will incorporate as-built conditions of fill placement and culvert construction, will be submitted upon construction completion Attached to this memo are the following : input for key cross sections, summary result tables , and graphical representations of the water surface profiles and key channel cross sections . Documentation for both the duplicate effective model (DEM) and the proposed conditions model (PCM) are included. Additionally, accompanying this memo is a disk containing the HEC-RAS computer files used in the analysis. The duplicate effective model is based on a LOMC effective October 30, 2003 (FEMA case no. 03-06-102P). The proposed conditions model is a copy of the effective model with the necessary additional cross sections inserted to analyze the proposed culvert. The sections at the creek crossing are based on a topographic survey conducted in March of 2004 . This data showed the creek flowline to be approximately 1' higher than the flowline interpolated between sect ions in the DEM . It should be noted that River Station 510 on the DEM was renumbered to River Station 554 on the PCM. The renumbering is based on the actual stream channel reach length defined in the effective model. As shown in the summary results, the addition of the 3-10'x7' RCS and 2-48" RCP culvert structure does not increase the base flood elevation above allowable floodway water surface elevations. The following table is provided for reference. Results for DEM River Station 387 512(Culvert) 510/554 632 Q total (cfs) 941 / 941 NA 941/941 941 / 941 Q channel (cfs) 479.9 / 627 .2 NA 543 .3 / 756.0 323 .0 / 345.8 WSEL (ft) 274 .2 / 275 .1 NA 275 .0 I 275 .9 275.6 / 276.5 Depth of Flow (ft) 6 .217.1 NA 6.0 / 6.9 8 .4 / 9 .3 Results organized as follows (DEM floodplain I DEM floodway) Results for PCM River Station 387 512(Culvert) 510/554 632 Q total (cfs) 941 / 941 941/941 941 / 941 941 / 941 Q channel (cfs) 477.4 / 625 .6 941 / 941 500.2 I 758.1 316.5 / 347 .1 WSEL (ft) 274.2 I 275.1 275 .1 I 275 .8 275 .3 I 275.9 275.8 I 276 .5 Depth of Flow (ft) 6.217 .2 5 .4 I 6.1 6 .3 I 6.9 8 .6 I 9 .3 Duplicate Effective Model (D.E.M.) Plan : Plan 05 RIVER-1 Reach-1 RS : 387 Profile : PF 1 •$H:;~•£1e~(fi)••••······•••· /~~ftPB: n d hiaililei /®fihip~; ..................... 214.33 Eieril.ent . . • . ...... . 0.080 0.065 0.080 w.t ut:iev @>: •·• • • • • • • • · 214.20 •ReachL~/tr:t>•• • •••••·••··· 190.00 285 .00 160 .00 200.81 126.47 64.47 0 .004881 •Areil(5qft)(••••<•• .:••••• 200.81 126.47 64.47 941 .00 .~Ft9W 1 (~rs)i~ ==·:·=;.;: .... 365 .51 479.88 95 .62 135 .20 33.00 52.73 • ve Ur-Otai (ftis) u • • • • • •·• • • • 1.82 3.79 1.48 1.49 3 .83 1.22 C6il'/~ t~i (6($) • • • • • • • • 5231 .7 6868 .7 1368 .6 236 .o9 IWette<f .Pei.; cnH ••• • 135.31 34.54 52.n Mi'n c'tiEi (iti •••:••••·•· 268 .00 •silearoBisqtti ••••••·••••······ 0.45 1.12 0.37 Aiph a ••••••••••••·•·••••••··•···· 1.53 stream' P.oweH it>i~ s) 0.82 4.23 0.55 •Ficin loss<rtx ••·•··•••·• o. 18 curiiV01i.ime (acr~i'tj > 2.83 2.41 0.15 o.o3 ! cum sA' {acres) • H I 1.97 1.08 0.15 Plan : Plan 05 RIVER-1 Reach-1 RS : 510 Profile : PF 1 •e:G, e1iiv (ri)•·•••••·•••·• 275 .20 I Elemen t ., · · ~~~q13: ·• /:CiiaHH~ RighfOB ve1Head •(1t):•:••••·•••••• 0 .17 ! Wt nNaL · ··· ... . 0.080 0.065 0.080 :w .s ;•E1ev(n>•••••••·••••• 275 .03 i Reach Len ; (n > · · 124.00 167.00 124.40 :F:iowAiea•iSilitF ••••••·•····· 135.28 133.32 84.33 135.28 133.32 84.33 :oroiat{cts}i•••·•••••·•••• 941.00 J~lOW ~(CfS)HH ~~::: ===::::::::::::::: 253 .38 543 .27 144.35 t6p Width (ft} •••••••••.•• 102.22 41 .00 73 .06 1.87 4.08 1.71 6.03 j Hyde : DePth (ft) > · ···· 1.32 3.25 1.15 11231 .6 ! conv ,(crs ) 3024.3 6484 .4 1723 .0 ; L~gt il wtiL (fi }: • .. · 147.43 i WetteCtPer;(ft) 102.44 42.95 73 .09 Minch Ei <ni ••·•·· 0 .58 1.36 0 .51 1.54 i Stream 'fiowe f{ib/f! s) · . 1.08 5.54 0 .87 r rcln U:iss (ft}. , • , o.86 i ¢um Volume (acr~fl> • · 3.31 2.91 0.36 c&E'Loss <ttr .... 0 .01 cum SA {aeresi ·•· 2.31 1.22 0.33 Plan : Plan 05 RIVER -1 Reach-1 RS : 632 Profile : PF 1 0 .12 Wt :iiNa( HH : . 0 .080 o.065 0.080 215 .63 Reacti t~C t"-> . ... ... 106 .oo 122.00 115 .00 F:iOW. Area !sq nF •< 245 .63 87.39 54.67 87.39 54.67 •o t9~tQrs>••··••••••••··· 323 .04 74.28 t 6iiWidih (ti j :: ... : .. ::. 15.00 38 .02 veit-otai tftls)•··:••·•••• 3.70 1.36 5 .83 1.44 16357.6 co:nv;@s> • : 9450 .8 5615 .6 1291 .3 85.51 18 .55 38.13 261 .20 si\ea.r bBisq fiW · · · 0.59 0 .97 0.30 •Alpha ••••••····· 1.31 3.60 0.40 Frcin toss (tt) · ' o.s3 curiiVoii.ime(acre.n r 3 .78 3.21 0.55 C & E Les$ (ft) 2.54 1.30 0.48 HEC-RAS Plan: Plan 05 River: RIVER-1 Reach: Reach-1 ~ Reach I River Sta I . Prqfile I .. ~:;;i---FMin(~)=i~·~n~lev 1. Cri~~~~l~v E.~ft/~;pe ... v~~~ni hfl:~ea h ro~(~i~h. flq\if~ #Chi Reach-1 -. 1PF 1 270.731 270.73 271.12 0.071266 5.63 199.66 255.52 1.06 0 941 .oo I 269.60 1Reach-1 lo _ jPF2 .. • I 941.001 269.60 271.171 271.17 I 271.64 I 0.059206 I 6.80 I 146.06 110.00 1 02 lR¢ac11-1 · l21s ····· -t IPF r-H -.. 1 941.00[ 266.ool __ 2?3.4?!--~~.96l__E~~~o·oo2350 2.19 574.601 267.431 0.231 Reach-1 215 ···•••• •·· PF2 941.00 268.00 274.35 274.44 0.002427 2.60 396.20 114.00 0.24 ----------------·-·--·----------1-------1-----.-.,-+------l-------· --1--------------Reach-1 1387 IPF1 941.00 Reach-! _ _J~~? ____ .. _l~~-2 __ 941.00 268.00 268.00 274.20 275.13 ~ i-------1---· ----Reach-1 510 _PF1 1 941.001 269.00L__3750J Reach-1 510· · .. PF~·--9~~0~ --2~9.001~ ___ 2?~.~i:-=~----I ------I __ !l~~~11 __ ---~.?~L---~~!.:?~L 22092t___ 034j 274.33 275.32 0.004537 I 3.99 ----~~?:~? J ___ ?9.00 l_ ___ 0.32 -···-----~ ·-------. __ ~?~~Qo·OO?Q!~t-·--_4.08052.92l __ 216.26t 0.401 276.20 0.006607 4.45 237.73 66.00 0.39 ---------------Reach-1 Reach-1 632 PFL ·---~!~~J __ 3~!~Q L~~:~~J_ ____ J__3?5.7~ J_ Q.003309 L 3.10 387.691 136.281 0.271 --~~1 ~QJ_ __ 3__~?:~[ ___ 2?~~~j_ _______ _[ __ 276.65[ __ 0:002335l__ 3.42[ 377.16 65.00 0.23 .1632~···-· . PF2 -··----,..._...,. .... ·-.: ::: ... : .... :· .:·:. ··. IRE!!lcti~1 •.• •j@t h : :· ··1f>f:l •••·•• •• I 866.00[ 270.00[ __ 276.3~1--·---Reach-1 . • 927 •· • •• •:•:• PF2• •• · •· · •• 866.00 270.00 276.46 0.003513 -----277.53 0.005848 277.26 3.10 4.42 467.45 215.75 276.72 53.00 0.29 0.38 i{eaCB¥ Ji352H Culvert . . . . . . . ' . . . . . . Reach-1 86600L__ 271.10 Reach, 1 866.oo r--211 .1 o 21135 L 214.51 2n.31 0.000102 1.56 837.06 292.48 0.13 279.97) ___ 2_75.34 280.03 0.000837 2.34 473.76 91.60 0.16 R~a~tH Jrnso !PF F . 866.00 274.50 280.22 I 280.22 261.09 0.027387 8.94 159.59 110.74 0.79 Reach~1 866.00 274.50 8.77 280.80 L~80 80 I I --'-'--I J. 261 74 0.026727 136.17 65.00 0.72 R1fr1ch~1 866.ool 2n20\ 281.8T--·--1 261.ool 0.0014251 2.261 642.40 263.99 0.19 IReach-1 11364 .... l~F;} -.. I 866001_~120~82.40[___ I 282.43[ 0.001062[ 1.8!_,___ __ ----<>------+------< 5Q4.88 160.00 0.15 React\i1 1504 ••·• 429.oo 216.40[_ 282.04! C 282.101 0.0036931 2.101 230.941 159.361 0.21\ 1Reach~1 1504.' ••• 429:9_Q ~78.40L __ 2~~~~ ____ 26255 o.00!561 1.59 302.94 149.70 0.1~ Reach~1 11643 • . -.. Culvert-i-_ R¢ach~1 ·--~ -1782 • 429.00 279.00 286.18 282.45 266.21 0.000499 1.49 413.66 168.48 0.12 R~ach-1 11182 h .. --~~:00 __ 3~~.00 -28~~~1=~--~~?.·~~'--~I o~52al 1~~ 3?3.891 138.341 0.1~ Reacll-1 1953 .. -•.. PF1··••. = 429~.~ 279.i--2~~.26! ---___ · i----266.29 o.000510 1.63 379.92 115.46 0.12 Reach-1 1953· ·PF2 ___ 429~~~1=J __ ~?~:60 ___ _38633 ____________ 286~ 0.002018 27~ 157.14 27.00 0.20 ~each-1_J3Q'.!_! ____ l~~-2 ___ . __ I_ ·-~2~Q~.-_ 280.40 !Reach-1 12041 IPF1 · I 4?.~·00I 280.40l __ 286.30l ___ _J 286.361 0.0013691 2.491 249.141 95.281 0.191 _ __ ?.~~:?.~ L _ _Q:~~~~ ?.?. l ____ ~ ~~ 1 .. __ -~ 26 ~~I 24.oo 0:26 286.51 ~H_E_C_-R_A_S_P~la_n_: _P ~la_n _0_5 ~R_iv_er_: _R_IV~E_R_-~1 _Re __ a_c_h_: R_e_ach-1 (Continued) f----R~e~ac~h_·_· -i-··~R~iv_.._er"-.• s_t-"'-<1 _••+-" .. '-'P'-'r""'"(J "'fil'""~"'·-"+-··_.'-'a_T~o_1a_1 ---+_M~in,'-ch El w.s. Elev ciit w .s : E.G. Elev E.G: Slope ·· Vel ctinl •• Flow Are a TopWicitti •· Fri:ii:tde #Chi ,_____ __ " ... ---+----.. -+--... -.-... _ __,__.~(cf~)-~ft) {ft_) __ ~{~l____ __ (~_) _ __lftlft) __ r--·(ft/s) (sq ft) (ft~j _· --1--•·· ~~~--1 ...... Reac hi t •·· •·· 2194 •:•••••PFL 429 .00 281 .50 286 .61 286.91 0 .009429 5 .21 121.97 65 .31 0.47 2194 :::::•.::c:::: PF2 ••••• • ·· 429 .00 281 .50 287 .24 287 .96 0 .021343 6 .83 62.84 14.00 0 .57 .. . . ........... " ---. • ••• • •••••••••••••••••• •••••••• ••••••••• ------·-·---·--· ------ Rea ch -1 2691 •····· PF 1 429 .00 287 .00 291 .44 290 .73 291 .80 0 .012130 5 .07 107 .49 71 .93 0 .52 ·--------·--------·-·-----·----·-·-·--· -----·-------------->- Reach -1 2691 PF 2 429 .00 287 .00 292 .41 292 .65 0 .005153 4.00 119 .06 35 .00 0 .36 -----~~-------------------·-----. ------------------- HEC-RAS Plan : Plan 05 River : RIVER-1 Reach : Reach-1 Reacti River sta • • · Profile ··· E .G . E le~--.-w-.s-.. -. E-ie-ii-...... -v-el_H_e_a_d_~~--r _F_r_ct_n--t-ci-ss-.r--c-&_E_L_o __ s _s _···.-.. -_:_a ___ -Le_n_· ·• a charioe1 · ::.:a Rig ht ·.. fopvvi~th (ft) • (ft) (ft) (ft) · (ft) (cfs) ·· · (cfs) · . (cfs) (ft) .__ ___ _,__ ___ __,_ ____ -----------------·--------· ---·---___ :.,__ ------~--'-----''---'-"---' Reach-1 0 PF1 271 .12 270 .73 0 .39 458.66 475 .26 7 .08 255 .52 Reach-1 •. 0 •·. .. PF 2 ... 271 .84 271.17 0 .67 129 .34 811 .66 110.00 ._ ___ __,_ ___ ____, ·------1-------l-----j _. _______ --------------·---·------------------11-------1-------1 Reach-1 215 PF 1 •• 273 .52 273.47 0 .05 l--'----+-----1-----------------!.----------------- Reach-1 215 PF 2 '-------+-----1-----274 .44 274.35 0 .09 RE!~_ch_-_1 _-1_3_87 ___ +P __ F_1 __ _,_ ___ 2743~.___3?'!3~ 0 .14 Reach-1 • 387 PF 2 275 .32 275 .13 0 .19 l--'----l-----1------+------------------------ --------- Reach-1 · 510 PF 1 ·· 275 .20 275 .03 0 .17 _____ .,__,_~-~_.. --------------· --· --- ,_R_e_a_ch_-_1 _-1. -'5_1 o __ '-'--l_P_""F_2'"""'. ·_. ·•_· __ 1 ___ 2?~ 2~ ._ __ 2_7~ 93 ---~p ----•-'---'-'-->--'----1------- ---.. --- 275 .75 276 .65 275 .63 0 .12 Reach-1 632 · • PF 1 1-------1----~,.-4---~~--+----------------·---------·---Reach-1 632 . •·PF 2 .. 276 .54 0 .11 1-----'-1--~-.......;.H -----..;......__ ___________ -----f--·---------- 2 .33 2.48 0 .07 471 .54 464.84 4 .61 287 .43 ------· ·-·-----· ·---·-----------------1------1 0 .12 213 .83 727 .17 114 .00 -----. ----·--·--__________ , ____ __,_ ___ _ --1--------·------------------------1--------1 0 .78 0 .03 365 .51 479 .88 95.62 220 .92 . - ----------------------------1------l 0 .84 0 .04 313 .81 627 .19 79.00 . -------------·--------------1-----1-----j ------..------------l-------1------'-------1 0 .86 0 .01 253 .38 543 .27 144.35 216 .28 --··-----------·------------1------- 66.00 0 .84 0 .03 185 .00 756.00 ----------------1----------1-----1-----1 0 .53 0 .01 543.67 323 .04 74.28 138 .28 -------------1-------· ----------------1-------j 0.43 0 :03 __ 4_7 _1.2_2 ___ 3_4_5 ._77_--1 __ __c1_24-'-._02--1 ____ 8_5 ._oo---1 1------1-~----'-'---+---'-~-~-1 ------·->------------------· ----·------+----l -----Re~cll-1 · Reach~1 • $27 . ··::• ••. PFJ 276 .46 276.38 0 .08 ----~·?_0 1 ____ 0_.0_1 927 .• ••·· Pf:;! ••.. 277.53 277.26 0 .27 0 .81 0 .06 ~------+-----+------+------!-----+--------, 493 .57 372.43 276 .72 ------1-------11------1 197 .18 668 .82 53.00 .. Culvert ••••••••••• Reach,1 . ••• 99.o · : •••• •·• PF: 1 •·••·· ·• 277 .37 277.35 0 .02 721 .06 143.58 1 .37 292.48 Reach-:f : • 990 IPF2 / 280 .03 279.97 0 .06 500.05 342.68 23.26 91 .60 R~~ch~F ..• ·n$o ...........• PFf• ••. . . 281 .09 280.22 0 .87 0 .31 0 .34 116.48 568 .34 181 .18 110 .74 Reach-1 1160 ··• PF 2 •· ·-·· 281 .14 .___ ___ __.. ____ __,_ ____ , _____ ---·---------------.. -.... , 280 .80 0 .93 0 .35 227 .25 ------!-----+-----+-----0 .37 638.75 65.00 1-------1---'..-· _,.............._..+.,.~..,--= l-----1--·----+----------· -·---1-------+----!------l----+------1 Reach"1 ·· 1~84 ·····• ...•• f>FF · · · 281 .90 281 .86 o .03 o .64 0 .17 70.96 163 .92 631 .13 263 .99 f---'---....;--.~------+~-------'-'---i -----------------------1-------+--------li-------+-----l------I R~~cii -1 .. f~84 ••• ••••·••· PF: ~H 282.43 282.40 o .o3 o .52 0 .18 147 .97 718.03 160 .00 -1----1------+------'-1-------li------+----+------I ... .. ... ....•. , ... 1--R~e~a_c~--'•--'1 _· __ ··~··--'1 ~504~···_·.--'···~:~•••~•••4_P.~:F~--•~1 m•·*•••~••_••_·+---2_82_._10-+-__ 2_8_2 ._0_4 +-__ o_.06_1 ____ 0_.1_9 1-----o-'-.o--'1+ ___ o__c._oo-1--__ 3_7_o_.90-1---5-8_.1_0-1-__ 1_59_._36--1 RE!~Ch"f :. 1504 • ~j:'1 > 282 .55 282 .52 0 .03 0 .12 0 .00 353 .50 75.50 149 .70 ~'-''-"--'---1---'----':~.· .. ~ .•• ~ •. c-"':-'·~ •••• ~ •••• ~-~-1--- 1-------1-----'-'----'--I-~---~------------1------·---·-.. - --·-· -l-----+------l----·----1-----1-----1 ._R_e_a_ch_-_1 _ __,_16_43_· _··_· • • _ __,_ __ • __ ...., ______ S:~I~~~ ___ _ ___ _________ ·-_____ _ ......•. :-: 1-------1----~-+----·---·---------·---· -------· - ---------------------1-----1------1 Reach-1 1782 ••.• ··PF 1 286 .21 286 .18 0 .03 103 .80 290.46 34.74 168 .48 ------------f--------·-·------------f-------·------ Reach-1 _1_7 _8_2_· __ ..,_P_F_2 ___ 1 ___ 2_8_6 ·3~ __ 3~6_.2_3 ,___ O 03 87 .87 303.30 37.83 138 .34 ----------------1.----~---.. Reach-1 1953 · · • •• Pf ( • .. ·· 286 .29 286.26 0 .0 3 0 .08 0 .00 28 .86 253.64 146.51 115.46 -------------~-------li--------1-----l ~R-'-e--'a -'-ch-'-c-'-1 ·_· -1. -'-19-'5_3_,•_· -'-·-····_··"-.·· P_,F_2""" .. -'-<·-'-·-·· _· _ ..... ____ 28_6_.~~--2_863~ _ o 13_ ______ ~..:.~~ ___ ...c.occ·O.cc3:..i------+---4·_29_._oo +------1-----2_7_.00_1 Reach-1 2041 PF;.• 286 .38 286 .30 0 .07 1------4------+--'------l ·-----'-----------------0 .07 0 .02 18 .22 297 .68 113.11 95.28 -------4----1-----·-+------l-----1 286 .69 286 .51 0 .18 - -------·------------------Reach-1 2041 PF 2 '------~-----"------0 .22 0 .03 1.77 427 .23 24.00 --·---,_____ --------------------'-----' HEC -RAS P~n :P~n05 R~~RIVE~1 R~~~c~u~~!_in_~rd~)---~·--.-.-.-~~---~---~-~--~---~----~ Reacti · · ~iver Sta . . • Pr(ifilE!i Hi!• E.<3 , Elev w .s . E!ev __ ~~!_!:!ead_~ -~ rc~n_L_i>s_i;·_. :·+-·•_c_._&_E_L_'o_s_s _'· • ..... 1 ·_a_· __ Le_n_>-+-_a_·~c_ha_n~il_e _1 .... • ~' • •_a_•~R_lg_h_t _. •• .... • •_r_·o_p_w_·. _idth_ .• ·.....,·: 1-------+----+----· -1-·~(n) '(n) · . (~---__ !~l .·· (~~~~-s ,)_-+---'··<'-'cf~) (cf~) (n} •• Reach-1 2f94 Prt ·•· 286 .91 286 .61 0 .30 0.42 0 .12 67 .09 281 .78 80.14 65 .31 . . .. -----·+-----l-----l-----l-------~---1-----4 ... Reach"1 . 21!~4 ·::•::::· PF:2 287 .96 287.24 0 .72 100 0 .27 429 .00 14 .00 l--'-----+'---~-'-+-"-'-~--1----1-----------------------·----·---·----· -----t-----1-----t 1---,--,.---.-:-+-...,,.----1-~..,,...---·-l--·---1-----+-·---- Reach-1 2691 ·: Pf: 1 291 .80 Reach -1 · 2691 PF2 292 .65 ---------------- 291 .44 292.41 0 .35 0 .23 -· -------1------1-----1-------1 -----+------l 4 .85 0 .03 47 .18 373 .34 8.47 71 .93 ----------------- 4 .53 0 .15 21 .24 391 .26 16 .50 35 .00 ---·---------··------------- Errors Warnings and Notes for Plan : Plan 05 Location : River: RIVER-1 Reach : Reach-1 RS : 2691 Profile: PF 1 Warning : The energy loss was greater than 1.0 ft (0.3 m). between the current and previous cross section . This may indicate the need for additional cross sections. Locat ion : River: RIVER-1 Reach : Reach-1 RS : 2194 Profile : PF 1 Warn ing : The conveyance ratio (upstream conveyance divided by downstream conveyance) Is less than 0.7 or greater than 1.4 . This may indicate the need for additional cross sections. Locati on : River: RIVER-1 Reach : Reach-1 RS : 2041 Profile: PF 1 Warning : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0 .7 or greater than 1.4. This may indicate the need for additional cross sections. Loca ti on : River: RIVER-1 Reach : Reach-1 RS : 1504 Profile : PF 1 Warning : Divided flow computed for this cross-section . Warn ing : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0 .7 or greater than 1 .4. This may indicate the need for additional cross sections . Locat ion : River: R IVER-1 Reach : Reach-1 RS : 1384 Profile: PF 1 Warning : The ve locity head has changed by more than 0 .5 ft (0 .15 m). This may indicate the need for addit ional cross sections . Warn ing : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0 .7 or great er than 1 .4 . This may indicate the need for additional cross sections . Loca tion: River : RIVER-1 Reach : Reach-1 RS : 1160 Profile : PF 1 Warn ing : The energy equation cou ld not be balanced within the specified number of iterations. The prog ram used critica l depth for the water surface and continued on with the calculations . Warning : The velocity head has changed by more than 0 .5 ft (0 .15 m). This may indicate the need for additiona l cross sections. Warning : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0 .7 or great er t han 1 .4 . Th is may indicate the need for additional cross sections. Warni ng : The energy loss was greater than 1.0 ft (0 .3 m). between the current and previous cross section . This may ind icate the need for add itional cross sections . Wa rn ing : During the standard step it erations , when the assumed water surface was set equal to critical depth , the calcul ated wa ter surface came back below critica l depth. This ind icates that there is not a valid subcrit ica l answer. The program defau lted to critical depth . Loca tion: River: RIVER -1 Reach : Reach-1 RS : 927 Profile : PF 1 Warn ing : Divided fl ow computed for th is cross-section . Locat ion : River: RIVER-1 Reach : Reach-1 RS : 632 Profile : PF 1 Warn ing : Divided fl ow computed for this cross-sect ion . Warn in g : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0 .7 I or greater th an 1.4. Th is may ind icate the need for additional cross sections . I ·Loca tion : River: R IVER -1 Reach : Reach-1 RS : 387 Profile : PF 1 Warn ing : Divided fl ow computed for t his cross-section . Warn ing : The conveyance rat io (upstream conveyance d ivided by downstream conveyance) is less than 0 .7 : or greater th an 1 .4 . T his may ind icate the need fo r ad ditional cross sect ions . Loca tion : River : R I VER -1 Reach : Reach-1 RS : 2 15 Pro fil e: PF 1 !Wa rn ing : The conveyance rati o (upstream conveyan ce divided by downstream conveyance) is less than 0 .7 I ! or greater t han 1 .4 . T his may indicate the need for add iti onal cross sections. !warning : The energy loss was greater than 1.0 ft (0 .3 m). between the current and previous cross section . I This may ind icat e t he need for add itiona l cross sections . ' !Loc ation : River: RI V E R-1 Reach : Reac h-1 RS : 0 Pro fil e: P F 1 Warn ing : User spec ifi ed wa ter surface is not possible for the spec ified flow reg ime . The progra m used criti ca l I depth as th e starti ng water surface . §: c .Q ii'i > "' UJ 290 285 280 275 270 FEMA -Trib to Burton Creek Plan : Plan 05 11/24/2004 --RIVER -1 Reach -1 r-~--~~~--r--' ---.----,____,.---r----1--..,-,--··-r-·----i-----.------,-·---. 0 500 1000 1500 2000 2500 Main Channel Distance (ft) 1 in Horiz . = 400 ft 1 in Vert = 4 ft 3000 Legend WS PF2 WS PF 1 Ground g c .Q iii > Q) w 285 · 280 275 270 • FEMA -Trib to Burton Creek Plan : Plan 05 11/24/2004 Section 387 ----------------.08 ----------·------f-.055 --------------.08 ---------- ~-L-eg-en-d-~ ---~-~----.------,----·..------.-----· --·-r--~-~-· WSPF2 WS PF 1 Ground • Bank Sta Encroachment 0 100 200 300 400 Station (ft) 1 in Horiz . = 50 ft 1 in Ve rt . = 3 ft g c .Q o; > Ql iii 285 280 275 0 1 in Horiz . = 50 ft 1 in Vert . = 3 ft FEMA -Trib to Burton Creek Plan : Plan 05 11124/2004 Section 510 200 300 Station (ft) Legend WSPF2 WS PF 1 Ground • Bank Sta Encroachment .. Proposed Conditions Model (P.C.M.) Plan: BCT-RCB RIVER-1 Reach-1 RS: 632 Profile: PF 1 •••&:kS:iE1eVtMiI•••••••·•· 215.86 •e1emenU••m•••••••••••:r•m••m• ••••••••••difhs• .••••:•••cMnhei m•.::f.{i0l1fos: V~iiii~~~•ttW•FH'•• 0.11 •WM0N~1m••••t••m•••••••·•••m 0.080 0.065 0.080 W;$;·erW(j'\)f}••····· 275.75 R~~~•UitW.tt:••m•··••H• 106.00 122.00 115.00 ciWW)s;(itj•J••?•··· •F:to.WAt~a($qft)?•·::n:::::: 256.64 89.30 59.63 :e:JdisiooeWiinF >= 0.002953 .:ArealsCl'fi}tt•••••••••u:::.:•:••• 256.64 89.30 59.63 @mCifoi(9r~HL 941.00 •W'PW{q~)·••··········•n:::••Hi 546.36 316.31 78.33 ?f~P.WJ~tif@:: •:::::•r 143.21 •t.4ifWi#\ff(~jU••tr:m••· •.• 88.16 15.00 40.05 V~itt~t(lt#I:t••••m• 2.32 MN9WJeiHW.$fi••·••m••t••••• 2.13 3.54 1.31 Maxc6toWi:(ft.Fi{ 8.55 HWJ&aei>unnw:mm••••::m 2.91 5.95 1.49 :¢.~fo&'.fdtW(ct$F••fr: 17317.5 f'¢W¥NM~fl·•·····ww•·t•••fJ 10054.9 5821.1 1441.5 UoofffV;Mr@H•• 114.08 i:w.~~i:f P:~W<M:•:rnrn•••••••w ss.43 18.55 40.16 :Ml&Ci'fe{ft)•f :• .. ,,, 261.20 1 shii~F(ibl.¥l•M•&:::t•••H::J o.53 0.89 0.27 'A1pilaJ:::::::: •: : •.• •·• 1.30 (Streaifri?owedibii(s)UYI 1.14 3.14 0.36 fr~tr;:(6~¥@i ••• • • • • 0.41 i:¢lJi;fl)/ii1Jfo~i~Cf.£tll:f•••••:i 3.69 3.87 0.55 •o•$i•S@$$.n!f••••••-•• 0.00 H0.0fo•$A•(~~r¢$F••n•t :}I 2.47 1.43 0.47 Plan: BCT-RCB RIVER-1 Reach-1 RS: 632 Profile: PF 2 gjqi$WV@ •••··••·• 276.60 ········x~WP.B. •f•• ¢tfu..iihei !•••••Ri@t•('.)$1 Vel Head (ft):.· 0.12 •Wk~V~I(; ;.:,.:.:)::••:·;:::: •• : 0.080 :W.lst•:Ei~Vittk ••• 276.48 IRiiabhileM(itH ··········••ti 106.00 •cHi•w1sn1tv•>•·•••••• :F.:id.WAJ.eatsq•m••••t••t•••1 201.63 i$:G.($.iCiilfi1ttiM< •-••I 0.002429 !•Ateii.1~Clm•::::•:::•••••••••:•::u 201.63 • ¢T9taH~fa}•/i toP.WlCiihtnt • ··· •veitt6IiliWs>••··••······ M.i!X¢f;ipiJ!fr(n))••• ¢qrW(T6foi<9ts) • •• • •·• · l~h9ih:W1dl(it){••··· MinctiEi(it)••••••·· 1:::~··i.:_=c.:..:.::::::::::::;::::::::::::;:-:;«···· :;~lJ.llUOI:·:::::;:::::::'.:::.:::::-:::;;;::::· ffr~tn tq~~•@••·••••••••· c an~.tos~<rti•••••••••• 941.00 H:'.:J@{~fs) • •••••·fa••'?•••::•••:1 410.81 85.oo t•toli WJ:cittifftiE•t••u••••••n 45.oo 2.53 i Av9l\leiAiVs)H•r:•••• •••••n 2.34 9.28 !HY.Cfr'.l:l~P.tfi@H::••n·+ J 4.48 19093.4 1•¢PiW;'{MsF•••·•·m·•·····••>·•• 115.99 IWett~.P:~i:t(nj ::::,:; : : '' 261.20 sfieaHti < it ••::::u•••••• •••• 1.18 •$tf&.~ii{p~H(16.J~~fa•U 0.45 i•o\i'.riiYQiqfu~XiWffttKr •1 o.o3 t•cum sXi~ff~>•O:t•m••H 9554.2 49.48 0.62 1.44 1.47 0.52 Plan: BCT-RCB RIVER-1 Reach-1 RS: 554 Profile: PF 1 0.065 0.080 122.00 115.00 100.21 70.45 100.21 70.45 347.65 122.48 15.00 25.00 3.47 1.74 6.68 2.82 7054.1 2485.1 18.55 26.92 0.82 0.40 2.84 0.69 4.93 0.09 1.43 0.03 n;;G/~i~y{~k• ••••••••••• , 275.45 l•i;iefo~hf• •:: : ··:.:/)(• ·1······••X~tt•o~l••••••••¢~rin~lt•••U~igti(O~I VelHead(ft~•••••··· 0.12 tWli:rii:vaW • / • • ..... •n1 0.080 I 0.065 I 0.080 wtslEievftiii•·•••••·· 215.34 i ReaCtiteii tiff < ••••·· 20.00 20.00 20.00 !¢.Ht.w;$J(tt) . ..:•••••· •FiO.W'.N~a(S.cffu••H.·'H•··· · 166.57 145.74 107.98 iS.!G($iqi¥W~F • • • •' 0.004435 !Ar~(stt~F•· ••• '''' ' ' . 166.57 145.74 107.98 • ottita1(¢.fsff ••>••••-·• 941 _oo tf:~(dsfl• •TUn• • ' 281.00 500.95 159.05 toi>Wicfoicr:ti+ · 228.40 i:t:oi> WidiH(fift•: ••:•••••••:·: 104.35 41.00 83.06 •V~ifoi~1@s)••••·•-•••• 2.24 Av9tv~Rfti~fr·•H•••••·· ;;; 1.69 3.44 1.47 • Miii< ¢ti~ PiJth(tt} • • • • • • 6.34 •Hy~i:iP~Pii:NitlH•m •:•:::• I 1.60 3.55 1.30 convl}totai ictsi • •·• • • • • 14130.7 • C.olWi Wf$-p:: •••••:•f ••••:: • <: 4219.6 7522.6 2388.4 •·•Eer.@HwiCit(n)•••••· 20.00 :w.&teci i?erditfl.• •• • •• •-• • • • • • • • 104.58 42.95 83.09 M.iR:Cfi ~i@•:•:::•••••·· 269.00 $~eiif(1~@rm••••@••;;: •••••••-· 0.44 0.94 0.36 At#~ij•••·•: .. urn••••••·· 1.50 i $tr$.m P:fui.ii@@~$): u 0.74 3.23 0.53 rtr.ctn tol\$ @ : > • • • · · 0.08 HcurrTvdimtle:"<if&e.::nn : • 3.18 3.54 0.33 Uc•& s toss<t'h••·•-·-····· 0.08 i cum s"A<ac:r~siY • • · 2.24 1.35 0.30 Plan: BCT-RCB RIVER -1 Reach-1 RS : 554 Profile : PF 2 0 .29 W.4.h~v@H••:•:=•H . . . •. 0.080 0.065 20.00 20.00 20.00 65 .37 165.98 65 .37 165.98 182.00 759 .00 25 .00 41 .00 UVeit:~f (iW>•·••••••••••i• 2.78 4 .57 •Mai(Chf Dptfr tnr • 2.61 4 .05 2147.1 8954.2 27.79 45 .78 269 .00 :sHifaF<iBisii rt) ···==•••·::::?::: 1.05 1.63 Aiptia t•• ?<•·•·••·•••••••• 1.11 2.94 7 .44 0 .07 1.15 4 .56 0 .06 0.43 1.35 Plan : BCT-RCB RIVER-1 Reach-1 RS : 532 Profile : PF 1 ••$!¢t~ev 'tf!L >••········ 215 .30 •$i~fo!MU '•••·:••r•t•••••m•••·• ••H·•••t.~W913 ••••••••¢B@h~1 ••=•d~i9l'it •¢$• 0 .25 •w.~;&w1 n···:·•••=••·••=••:m:=•rn o.os5 215 .05 •R~~Bhtiirktrit ••n=••••r••• 40 .oo 40 .oo 40 .00 •Ciii'wlsHii)Y>••••=•· 212 .12 :F:iOWAl'eliHsan) ::••:::::::r 235 .31 0 .003212 •Nli~:t~crnf •·••:r :•••••••n•::: 61 .03 440 .79 73 .93 941 .00 •r.JPW@s>•:h• ... : :::::• 941 .00 •tb?Wki\h (tti •i•·••••••••· 218 .53 toP. WlaffifoF :: :: · 60 .25 99 .oo 59 .27 .Veit&ai Ws>••••······ 16450.3 44.00 i Minci.1 E't{it)iiii'••·•• ' 1.09 4 .37 • ffrt;tnt~ss(ttF ••••••···· 3.1 2 3.41 0 .29 c =& EJ;oss{n)::• 2.20 1.32 0 .27 Plan : BCT-RCB RIVER-1 Reach -1 RS : 532 Profile : PF 2 VetHea d (f!} •. :••·••••····· w:s:E:ieY.tri>•·••••••••••· 215 .79 ReaCti t enl<iiF • •· 40 .oo 40 .oo 40 .00 268 .17 514.73 941 .00 :F.fuV/Xcrsk ............ . .... . 941.00 i T'o?Wicitti <iii •·••:::• 99 .00 3 .51 6 .09 • ctiiivlifofai(cfs ii••••••• 20454 .8 Lel\gth:Wfd i'(ft ):•••·•••:·: 44 .00 0 .81 Aiph~•.••.•••·••······ 2 .83 1.13 4 .40 cum sk(ad:esi ...... . 0 .43 1.32 Plan : BCT-RCB RIVER-1 Reach-1 RS : 493 Profile: PF 1 ••E!G:i E:ievtri>••••t•r.•••·• 214.89 ·•Eiemenf• ••r:••••••••tn •••••••· •·:•:/=terrotr •mm•cfianhei• thH~icihl'o s ·V~i8~aaBt k?•·t•.•···· 0 .28 ·•W(~N~i \•:·····••••r••••t'•tt 0 .065 W ~$/$i~V@ ??•••••· 274.60 [R~~l$4~M•@:r •••••••••••t •r 64.00 107.00 64.40 ••¢.foW./$.HMtJ•.kt•••• 272 .01 •F.WWAhiat$q •ri j••:••••r nm 220.44 Ek'.Vsioil&Mrvri n••t• 0 .004052 ·MeaisCiri>••••:•:::n::::::•:m:r 90.oo 381.56 47.89 @i'l:~i~it<:,:s pr •r•• • • 941 .oo f.@W@f:St •·•···trn•:m•:••••m• 941 .00 :.toP.W.Ml:Hf.iH' Y• 211.41 T~i:fWii:!ttHtt.>•••tHt•••:•••t 81 .84 92 .00 43 .5a :Vei t o:taf(if/$fl •••>·· 4.27 •Av!foW ii tft.i$).••• •M••···••t• 4.27 :MaxCiWbpth(ri }./•• 5.10 •Hvd Ecieptil(itj (••• ········ 5.01 F,!~iri tci®tf!l ••H:•H• o .43 ¢llf!iWt8fu~i~di'#-'.itf :H•n 3 .os 3.o3 0.23 • o ;g;s. 4ii$~{tt) •••..:t 0 .12 c~m $AJ~c:r.~~w••:•••••••nt 2.14 1.23 0.22 Plan : BCT-RCB RIVER-1 Reach-1 RS : 493 Profile : PF 2 •w.sl eiiW:t<fti •••••••••·· 64 .00 107.00 64.40 cn t WlsJtni •••••••········ 258 .08 460 .26 941 .00 •TopWldllf(rtY •••••••• 92.00 3.65 'l\v9 t•·ver ::•ws n•••••m•••••r• 3.65 5.96 •flyCiiU•i:ti~iltl'iRitYU••r·•••••••r 5.87 19155.2 44.12 269 .50 •sHea£•ti !JISQih•••·••t•••tJ:it 0.88 3.21 1.13 3.95 ••C•& E: lii~S:(rt)••·•:•:•••• 0.43 1.23 Plan : BCT-RCB RIVER-1 Reach-1 RS : 387 Profile : PF 1 • ~;<:;~eiW(tt>n••••••••··· 214 .34 :siemMit •·•••••••••••••••••••••••:::: ••·:•••••t.~K&a •t••••ci#.rih~l +•''R\9f:ifoe Veri·'iead(rt h • · 0 .1 4 wt ~vc1 rn • ? ::::::::·: · 0.080 0.065 0.080 :wsiE:ievtt1 v u••••••• 214.21 •Reacil te li (n)•••••t<••••••••• 190.00 285 .00 160.00 202 .18 126 .80 65 .01 202.18 126 .80 65.01 . atofai(crs f •••·••••·•··· 366 .20 478 .74 96 .05 •t opWidtti tni •·•••·••••••• 221 .64 fop WidiH t riH : :::: :· .. 135.72 33 .00 52 .92 •vei ro~~itffis)•.•••••H••• 1.81 3 .78 1.48 : M~x ¢hi Piith(tt):•• ••• 6.21 •Hy~f; p~piti (nj •••••·•••······ 1.49 3.84 1.23 • cotiv /t9 fai < crs >. •·• • • • • • 13560 .1 : conv:. (crsj ::: .::: .................. . 5277 .1 6898 .9 1384.2 •ter\9iHwia:·(ft)••••• 135 .83 34.54 52.97 •Mi l\¢11~1@ ··.••••••••• 0 .45 1.10 0 .37 •Aiptia {?••••·········· 0 .81 4.17 0.55 •Ftd frt-05$@ :•••••••· 2 .84 2.41 0 .15 1.98 1.08 0.15 Plan : BCT-RCB RIVER-1 Reach -1 RS : 387 Profile : PF 2 elcit•·i:ii&v tit >t• .......... 215 .34 •Eieme@ •t ••t•••r•••rm ••••••••.•••••:••:t~nos• mt ••cMnMi • ••••t afo&:os • •ve1Be@(tt b• : 0.19 Wfr nhva w=:••::::·••::•::••>•:ut 0.080 0.065 285 .00 160 .00 157 .70 157 .70 626 .35 33 .00 3.97 4.78 9362 .2 37 .68 1.17 4.64 3.19 1.08 Plan : BCT-RCB RIVER-1 Reach-1 RS: 512 Culv Group : 48" RCP LEFT Profile : PF 1 n:tciilV dfou?<ct=S}>t••· 64.68 ••.etiwftuilteMftf ttmm•••• 38 .33 '#$.~fi'e1~?'•U•••ltt•••}( · ¢iliYV~U$ (rffsHt ••••••t• 5.15 9 •e#if~RC.M ••<•••••·· 64 .68 •c~IYV~o~•@@ ••l•l •t 5.15 )EXi/iJsdttF r:t<•••·•t•· 275 .30 JfoM iMei:DiUfi N•••······:::· 271 .00 v;;s :=us :••(fi)•••r:•••••••••••• 215 .os •CBWfrlv ••E:iorUnF•t.••t•••• 210.50 ltl<~W P~@ F••••ti?•\••• 214.89 ••¢iJMff4fo"@<m•••••:::•:t •• o.40 Mii$.t o$•ttt)•=••=••••=t••••• 214.60 •c~wg~lfXii$~•ttt.>rrn•••••••• 0.13 J.ieit~•E&mtr m•••••r=••••••• o.42 J%Me6Wc¢$i •cit>t::::r•r 0.21 moeiia:l&srn}r :•m: :••••:: o.44 :awet r<ars:w::::•·••••••::::•m: 21s .oo ••weir fiaxbePl tii~t•t.•:.:n diHv crf O:~i:li ii<fii.•·••••·••• Plan : BCT-RCB RIVER-1 Reach-1 RS : 512 Culv Group : 10X7 RCB Profile : PF 1 ntt:cUIV:dfoJP.for-st 011.63 ciiWF:'rnrtentM:tm mmm• #.$~w~1~::r •r ····.··· 3 ¢µwv-~ilMW~r=:•:mr::: 5.53 Q$~rf:~f(¢fi:i)\ .. 270 .54 ¢WvVeJP SWsV•••n •:•t 5.30 E1GY0.s;'fa}t :•·•········· 275 .30 cJiVfoitEi U ~Hrifl•:·•···•t • 269 .70 w;sm::JSitrii<••············· 215 .05 ¢t1wiiME:1Dn:triH•:••r•t • 269 .50 $)&rlb$:(it1 \::::n:••••······ 214.89 :¢µi\iffrh.ti1:1$Rft:f:••:::•:t::: o.o3 0.15 0.24 •••$!&i@@fl ••····?•···•·::········ crnvws l&eNii)•••••••••• • cuiYcrt o~~Hi(fii •·••••••·· Plan : BCT-RCB RIVER-1 Reach-1 RS : 512 Culv Group : 48" RCP RT Profile: PF 1 :a:c&Ivdfou?tc!S}:::m 64.68 • cuMfuH:tentnn rn:m•r :m 38.33 cow Crtoepth crti •·• • • • • • •· Plan : BCT-RCB RIVER-1 Reach-1 RS : 512 Culv Group : 48" RCP LEFT Profile : PF 2 • a•.cuiVdfouP. c<:t:Si r 56.01 ••cuw:F;mltentn>tt•••mm:• 38.33 ··~·$~1i~i~tmr••rntm•·••··•• 1 ·¢~WV~®··w~r ·••u•r ••• 4.46 ···q •a~ri~i (¢.t~k t?tt:n• 56.01 ·•¢WvV~P~tWM •·?•'•••···· 4.46 ••ejiJ l•·us t••tti>ULu•r:•rn•• 215 .99 •A:iiVfoij~iQtHfii•tm••••t • 211 .00 w:suJsHfiV Y •/••••••• 215 .79 •¢biV:inYeLonJnl ••>n:••t 210.50 $!¢(1:)$@U ....... ........... 215 .67 •4~W#tc:tfr~Rm ••••:::•m.•••• 0.01 w;$.:o$lttF •• ••x •< 215.46 :cuw EXift.ilss·cny · ·• 0.1 o :oi:iifoeo WP•··· ······ o .32 •¢J:iwt:nfrt0$~ c:ttmn \ : 0.15 •·•oeita •Ws rn f ••< o.33 ::owei!NciSi um ··•••·•·•<t•••• •cJivWsfoiet<ni •••••·•••·•·•· 215 .oo ·•.weirMa><•oe.Piit •cn.t.rr•r• • cliiV art: D~pih (fij •••••••• - Plan : BCT-RCB RIVER-1 Reach-1 RS: 512 Culv Group : 10X7 RC B Profile : PF 2 a cUivdfou c:rs: : r 828 .98 ciiiv.F:Untentrii •#.$.~li'~i #:rn= r ===·===·· 3 ¢~ifV~#$Ws}.:U:=•:::::u 4 .80 ¢•eijr.i~nt~M ••••• =•• 216.33 ®iVV¥P.:$W$):•::•::•nm 4 .64 e)diXis (Uff Fi\ ······· 275 .99 ttiiV:iMEiiJ~Crtn:::••=•r::• 269 .70 215 .79 •ciiwinYefoicn · :::•:::::::•:: 269 .50 .02 .13 .18 cwviiffcBntfo:i:•n••••••==···· cuiVWs •irli'eFfi '•:•:: •== 215 .45 weirMi!X oe iiFit · ····· .55 Plan: BCT-RCB RIVER-1 :a curV:dfouil<ersJ••• ¥l <:iii¢•<~)t·•···················· f;iOi ®.{M ':n:: •·•=···=·=:=· CuiYWsfoiel(it)••••······· Reach-1 RS : 512 Culv Group : 48" RCP RT Profile: PF 2 56 .01 ctiwifoiitentn> /Y===:·n 38 .33 215 .99 cuiVirw e1u.1:rtrt)timtt 211 .00 215 .79 :ct1w '1nVE:ioKtri>••mm'm• 210 .50 214.34 ·w~if'$iat~:·tttFtJ==m=•:••• 215 .98 :wekstd~9t@ m:rn=ttf 2 .25 •Ml r\EiW~il'Fiow(f.th ?? 281 .55 HEC-RAS Plan: BCT-RCB River: RIVER-1 Reach: Reach-1 :::<:i r<>fac:: ::M1nchi;;1 ••• :w:sA!lev • • •:cr1tws>= yi::,~~/Ele>.( •·• i;;:tf stope: • ••Verct1ni'f •••floW.Wea): tiii>\Nidtfi•f •••ffO@jdif:t •••:::.••(cw)>:)/ .::::••\tit>\/••··••••·••• !1tY::•••••• •·• • > (ti) < ? •:• •••(fitnr?••• • •••••·• (!Vsf••t• ••••Jtsq:tt) •t• • •• • ••foh•••:::t ••••• ··.·•:•·:•? ••..••.. 941.00 269.60 270. 73 270. 73 271.12 0.071266 5.83 199.66 255.52 1.06 941.00 269.60 271.17 271.17 271.84 0.059206 6.80 146.06 110.00 1.02 Reach'r: :Hj:hs y: !Pf"} //·:I 941.001 2sa.001 213.471 211.ssl 213.521 0.0023501 2.191 574.6ol 287.431 0.23 .............. l . I Reac~<1: ~.1~ :::::: mrn~ < 941.00 268.00 274.35 274.44 0.002427 2.60 396.20 114.00 0.24 R~~!!-:F • l~t::p: <IP,fPi ti 941.00 R~{' I~]·;:: :;~+ liF:~ { H 941.00 268.00 268.00 274.21 274.34 0.004816 0.004476 3.78 3.97 393.99 288.77 221.64 79.00 0.34 0.32 275.14 275.34 R~#tt~•••· ?14~<•• I\' <li?it i•·•/•·•·•······· 941.00 269.50 274.60 272.01 274.89 0.004082 4.27 220.44 217.41 0.34 IFfoach?r •• ?l~~•r::::• ·:11?F2••••·•••• 941.00 269.50 275.46 272.01 275.67 0.002413 3.65 258.08 92.00 0.27 rnrnrn@r1%frtHIBW,ri% n I I I I I I I I I I I ·Re~~h~f/}} $ii\••••••• • ·•••·•H• >: culvert ··················>··•· .. •····'··:··········.•·.·.····· ~ ~-~ · ~-) ~ ~ ~: ~:~-~-~{ ~-~ ~ ~r-r~ ·~-~:~: ~:~:~-~ ~-~-~ ~-~-~-~·~ ~{-~: )~: ~: ~ ~\t ~: )~ ~ ~ ~ ~.) ~-~·~ ~ ~ ~ ~ ~ R.~~~fut>•••• ~~·· •>• • ~fAH••• •••· . 941.00 269.70 0.003272 4.00 235.31 218.53 0.30 275.05 272.12 275.30 :=~~:r~I~;,, .. ,, .. !li'ii•,..,.,.", 941.00 941.00 269.70 269.00 0.002116 0.004435 3.51 3.44 268.17 420.30 99.00 228.40 0.25 0.32 275.79 272.12 275.99 275.34 275.45 l:Reach-'1·•••······ 941.00 269.00 275.83 276.11 0.007185 4.57 231.34 66.00 0.40 :·::: ~-?{)~( ~-~:: R~~~~trn•••••r1~·•mnn ·••••Uf?f'.,r:••••<••••·• 941.00 267.20 275.75 275.86 0.002953 3.54 405.57 143.21 0.26 941.00 267.20 276.48 276.60 0.002429 3.47 372.29 85.00 0.24 866.00 270.00 276.43 276.51 0.003250 2.99 482.41 280.80 0.28 866.00 270.00 277.23 277.50 0.005985 4.45 214.17 53.00 0.38 ~-~-~:~:/?'.'?~\-~::.:-: Reaclf:h•••••• Culvert R~~~h~1 ••• Flm•:r•• :n•? IP:f'Xff••:::··· 866.00 271.10 277.36 274.51 277.38 0.000691 1.56 841.42 292.63 0.13 :t~~i~!::. ::Ir.. ::::::: ·l"'=f:.g• ::• · ·· 866.00 ::::::. ;.:'.:.:::: 271.10 0.000841 2.34 472.82 91.48 0.16 279.96 275.33 280.02 R~adJ:j • < 11160 • •• •' '''' 866.00 274.50 280.22 280.22 281.09 0.027388 8.94 159.58 110.73 0.79 ifai:iH.'~1 • • •• 111$.0. • . Ip -, L ' ~~\\:i:.-::.::·:~~·~::·:: :.::::~: 866.00 274.50 2n.20 0.026727 0.001428 8.77 2.26 136.17 642.41 65.00 263.99 0.72 0.19 866.00 280.80 280.80 281.74 281.86 281.90 ·j~~~~'::.: .•.• :.:ijj;.•.;:::: .• :• .•. :: :.•1.0~••2:••.•.::•.•···· ······· 866.00 277.20 282.40 282.43 0.001062 1.81 594.88 160.00 0.15 R~~lft•:n'h•lff®.t•<•••}'••Hf>:B•i•• •<••• ' 429.00 278.40 282.04 282.10 0.003693 2.10 230.95 159.36 0.27 •R.~acitt•FHl~~·••••••••HAR-f~•nnnr 429.00 278.40 282.52 282.55 0.001561 1.59 302.94 149.70 0.18 HEC-RAS Plan : BCT-RCB River : RIVER-1 Reach: Reach-1 (Continued) Culvert 429 .00 279.00 286 .17 286.20 0.000503 1 .50 412 .18 168.17 0 .12 429.00 279 .00 286.23 R~#@ <> W~i i >< f:ii=2 > . .. 282 .45 286 .26 0 .000528 1 .55 373.89 138.34 0 .12 ••>.'' :x• 429 .00 279.60 286 .25 429.00 279.60 286 .33 Reilch"f ::::::::. 1953 ::=) ::.:·:.::=.: Af:.•=t Jt:==:::=· R~~~~f' •t 1953 {/ ii/ IPF2 • )' •• 286.28 0 .000513 1 .64 378 .98 115.32 0 .12 286.45 0 .002018 2 .73 157.14 27.00 0 .20 .... •••=•••••?••• • ; ;; I )(? 'f•; . . "" •=·. ,.J'fa }:::::::::: Pf) '' ?i 429.00 280.40 286.30 286.37 0.001379 2.50 248.39 95 .08 0 .20 429.00 280.40 286.51 286 .69 0 .003122 3.44 126.83 24.00 0 .26 429 .00 281 .50 286.61 286.91 0 .009497 5 .23 121.61 65.21 0 .47 429 .00 281 .50 287.24 287.96 0 .021343 6 .83 62 .84 14 .00 0.57 429.00 287.00 291.45 290.73 291 .80 0 .012072 5 .06 107.72 72 .04 0 .52 429.00 287 .00 292.41 292 .65 0 .005153 4 .00 119.06 35.00 0 .36 HEC-RAS Plan : BCT-RCB River : RIVER-1 Reach : Reach-1 1•• .. Reacll •> River,sta :n H <•:-:~.~ ... -. ~J;<3 :~1 eY,\ wt$i ei@ F nve1HeaC1 ? ••F.r.iStMJ>5$H: \p&Eit.Q~S: • ::••'ti{eib •J =•q ·¢fiafo'l~W \ :=:;p~i9@u : •:t®.WidW> 1:-•= ., •>, .... ,_·•· -:tr HtY u . :: :•::@••• n )n••••·:itt n >• ••<~l t• Ht •n •••,:(rt)=.•••• ... •< (~): ··r:: ::::••Mw rnn • :n:foM'••n :•:.::::::•t~fW •::n •:••·••GTi1 , ....... . R~@~dn •k>lo •..:: ::::• ii "RF t •• • t• 271.12 270 .73 .;;• ... .... ···•:••{) .· ... ·. ······ ')• ::::}} ..... . 1 •~iiiii@ t •••• •$n mm:n:=:::m ·i:::tm ·1ijfa·••••:••··•·$~~-···:•:•••::::::·•·•!•1tJ··~•!li l!•!•!:·· .•· 273 .52 274.44 274.34 275 .34 274.89 275 .67 Culvert 275.30 275.99 273 .47 274.35 274.21 275 .14 274.60 275 .46 275.05 275.79 275 .34 0 .39 0 .67 0 .05 0 .09 0 .14 0.19 0 .28 0 .21 0 .25 0 .19 0.12 458.66 475 .26 7 .08 255.52 129.34 811 .66 110.00 2 .33 0 .07 471 .54 464.84 4 .61 287.43 2 .48 0 .12 213.83 727 .17 114.00 0 .77 0 .05 366.20 478 .74 96 .05 221 .64 0 .83 0 .06 314.65 626.35 79.00 0 .43 0 .12 941 .00 217.41 0 .32 0 .01 941 .00 92.00 941 .00 218 .53 941 .00 99.00 0 .08 0 .08 281 .00 500.95 159.05 228 .40 275 .83 0.29 0 .07 0 .06 182.00 759.00 66.00 ~ead M (( l$$4 •:t;n::••:} A~~--27_6_.1 _,1 -----+---__,1------+------+----+-----1-----+-----1 FU • , ... ••@:::,==:::::@: )''!~ R¢MH~tn•t ·$~:nrrrnn:. e6 t t••/···•:·•·••·•• 275.86 275 .75 0.11 0.41 0 .00 546.36 316.31 78.33 143.21 276 .60 276 .48 0 .12 0.45 0 .03 470.87 347.65 122.48 85.00 •R~~BMt•<k roi :••••n:tt<• eF2 t•••·• ,,.,,,·.····· .? ••===r===t==r===t====t==r===t:==r==i <U R¢~i-iK~t:::n:~?':t::::••t·" '·' R'~~cM~t:•tt mt: ·::::::::••.. '"' 276.51 277 .50 Culvert 277.38 280.02 281 .90 282 .43 276.43 277 .23 277.36 279 .96 280.22 280.80 281 .86 282.40 0 .08 0 .64 0 .27 0 .84 0 .02 0 .06 0.87 0 .30 0.93 0 .37 0 .03 0 .64 0 .03 0 .52 0 .01 500.35 365.65 280.80 0 .06 197.05 668.95 53.00 721 .39 143.22 1.40 292.63 500.10 342.77 23.13 91 .48 0.34 116.48 568.34 181.18 110.73 0 .35 227.25 638.75 65.00 0.17 70.96 163.92 631 .13 263 .99 0 .18 147.97 718.03 160.00 HEC-RAS Plan: BCT-RCB River: RIVER-1 Reach: Reach-1 (Continued) t;;;;;;::J{CJ•·••Rivef:sta ••• •= ••P.rafiie• ••• •••E!Jd:•eieV.•H • wl~LI:i~V • • IJ.eiHea~ •• •••F.r:c:tntu55< •tc&:~•L.os¥••• •u•••dT~ra••• ••o•cilaHhet=f •••'&8i9~Ht •''tl>PWiBW•• : ::: ':L··-·-·-··-·•: •:•:n•<m•••••••.ILLllittE.•••· • •·••••• .(ft) ···•••n• n•••r (It)··· ): / •' (rtf•U•• •••••• ··n~M\i •.. ·••••ld.i~Wn••·· ····=••<C.~FJ•• ·•·t•••tM••m····· 282.10 282.04 0.06 0.19 0.01 0.00 370.90 58.10 159.36 Fieac~+ <• 11so4. p-·~ 282.55 282.52 0.03 0.12 0.00 353.50 75.50 149.70 R~~¢@ /It@• • > I Culvert Re~~~~Y• •Jjt~~n.•••••• :dFF.1 n••••H••• 286.20 286.17 0.03 103.66 290.83 34.51 168.17 ~~~¢~~t Utr~zih••• '·!er?\/• 286.26 286.23 0.03 87.87 303.30 37.83 138.34 R"eaci\~1•Htl19s3••m••••H•i~F1/U ...... , 286.28 286.25 0.03 0.08 0.00 28.78 253.83 146.38 115.32 ?RR'.'l'.'I 01? n 1!> nn::i 429.00 27.00 286.30 0.07 0.07 0.02 18.18 297.94 112.87 95.08 1~~1~! ii:=lit~~l~i,l~i~~iH!'!,'!I 286 451 -HI --1 --1 -HI 286.37 286.51 0.18 0.22 0.03 1.77 427.23 24.00 286.61 0.30 0.43 0.12 66.94 282.10 79.96 65.21 287.24 0.72 1.00 0.27 429.00 14.00 ·~~a:~~; •i•••i••·1~~··••;ili~··~·······:i•i••.:·••••••••·• . : . : ::: ~ : 286.69 iiif•M>• =• 286.91 286.61 o.30 o.43 0.12 66.94 282.1 o 79.96 65.21 ·'·'~~~'-•······· PF'2\\:\;::°::•·'· 287.96 '><>7 '>A n 7'> 1 nn n '>7 A'Xl nn 1 ;1 nn .......... , ................... :;.!•···· R~~~~1•r•·•1@~fr•••m•rm1Ffii t=<•·: 291.80 291.45 0.35 4.86 0.02 47.36 373.14 8.50 72.04 F?;~~¢ns1 <••· l?iw.fr•••••••w••!ei=~. •<• ··· 292.65 292.41 0.23 4.53 0.15 21.24 391.26 16.50 35.00 Errors Warnings and Notes for Plan : BCT-RCB Location : River: RIVER-1 Reach : Reach-1 RS : 2691 Profile : PF 1 Warn ing : The energy loss was greater than 1.0 ft (0 .3 m). between the current and previous cross section . This may indicate the need for additional cross sections . Loca ti on : River : RIVER-1 Reach : Reach-1 RS : 2194 Profile : PF 1 Warn ing : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4 . This may indicate the need for additional cross sections . Loca ti on : River : RIVER-1 Reach : Reach-1 RS: 2041 Profile : PF 1 Warn ing : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections . Location : River : RIVER-1 Reach : Reach-1 RS: 1504 Profile: PF 1 Warn ing : Divided flow computed for this cross-section. Warn ing : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections. Locat ion : River : RIVER-1 Reach: Reach-1 RS : 1384 Profile: PF 1 Warn ing : The velocity head has changed by more than 0.5 ft (0 .15 m). This may ind icate the need for add itional cross sections . Warn ing : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. Th is may indicate the need for additional cross sections . Loca ti on : River : RIVER-1 Reach : Reach-1 RS :1160 Profile: PF 1 Warn ing : The energy equation could not be balanced within the specified number of iterations . The program used critical depth for the water surface and continued on with the calculations . Wa rni ng : The velocity head has changed by more than 0.5 ft (0 .15 m). This may ind icate the need for additional cross sections. Warn ing : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections . Warn ing : The energy loss was greater than 1.0 ft (0 .3 m). between the current and previous cross section. This may indicate the need for additional cross sections . Warn ing : During the standard step iterations , when the assumed water surface was set equal to crit ical depth , the calculated water surface came back below critical depth . This indicates that there is not a valid subcritical answer. The program defaulted to critical depth . Locat ion : Ri ver : RIVER-1 Reach : Reach-1 RS : 927 Profile : PF 1 Wa rni ng : Divided flow computed for this cross-section . Loca ti on : River : RIVER-1 Reach : Reach-1 RS : 632 Profile : PF 1 Warn ing : Div ided flow computed for this cross-section . Loca ti on : River : RIVER -1 Reach : Reach-1 RS : 532 Profile : PF 1 Note : Mul ti ple critical depths were found at this location . The critical depth with the lowest , valid , energy was used . Loca ti on : River : RIVER -1 Reach : Reach -1 RS : 493 Profile : PF 1 No te: Mu lti ple critical depths were found at this locat ion . The crit ical depth with the lowest , valid , energy was used . Locat ion : River : RIVER -1 Reach : Reach -1 RS: 387 Profile : PF 1 Warn ing : Div ided flow computed for th is cross -section . Loca ti on : River : RIVER -1 Reach : Reach-1 RS : 215 Profile : PF 1 Warn ing : The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than 0.7 or greater than 1.4. This may indicate the need for additional cross sections . Warning : The energy loss was greater than 1.0 ft (0 .3 m). between the current and prev ious cross section . This may indicate the need for additional cross sections . Loca ti on : River : RIVER-1 Reach : Reach-1 RS :O Profile : PF 1 Warn ing : User specified water surface is not possible for the specified flow regime . The program used critical depth as the starting water surface . 295 290 285 g c .Q 280 iii > Cll w 275 270 FEMA-SC W/ 3-10X7 RCS-RAISED SC -ASSUILT Plan : Duplicate Effective Model+3-1 OX7 RCS 11/8/2005 -----------------RIVER -1 Reach -1 ----------------~ 265 +--.---.-~-.-~-~-r-~-.----.--~-.---~~--.-~-.-~-~--.--~-~-.--~--,.---~~--.-~-.-~-~-r-~----, 0 500 1000 1500 2000 2500 3000 3500 Main Channel Distance (ft) Legend WS PF2 WS PF 1 Ground §: c: .Q n; > Cl) Li] 280 278 276 274 272 270 FEMA-SC W/ 3-10X7 RCS-RAISED SC-ASSUILT Plan : Duplicate Effective Model+3-1 OX7 RCS 11/8/2005 Section 387 ----------.05 ----------r.-.05s ----------.05 --------~ 268 +---,.--~-~-~-.-~-~-~-~-.-~-~--~-~-.--~-~-~-~-.-~-~-~-~---, 0 100 200 300 400 500 Station (ft) Legend WSPF2 WS PF 1 Ground • Bank Sta Encroachment g c .Q iii > Cll ii] 284 282 280 278 276 274 272 270 FEMA-BC W/ 3-10X7 RCB -RAISED SC-ASBUILT Plan : Duplicate Effective Model+3-10X7 RCB 11/8/2005 Section 493 268 -l-~~~~~~~~~~~~~~~~..--~~~~~~~~~~-,-~~~~~~~~-.-~~~~~,..--~..---.. 0 100 200 300 400 500 Station (ft) Legend WSPF2 WSPF 1 Ground A lneff • Bank Sta Encroachment FEMA-BC W/ 3-10X7 RCB-RAISED SC -ASBUILT Plan : Duplicate Effective Model+3-10X7 RCB 11/8/2005 3-10X7 RCB & 2-48" RCP ~---------.08 --------------.055 -----i>k------.08 ----~ 284 282 280 278 g c .Q 276 n; > Cl> w 274 272 270 268 -1---~~-~-~--r---r--~-~-~-..,..----~-~-~-.-~-~-~-~-.-~-~-~--r----, 0 100 200 300 400 500 Station (ft) Legend WSPF2 WS PF 1 Ground " lneff • Bank Sta Encroachment FEMA-SC W/ 3-10X7 RCS -RAISED SC-ASSUILT Plan : Duplicate Effective Model+3-10X7 RCS 11/8/2005 3-10X7 RCB & 2-48" RCP --------.05 -------------.055 -----------.05 ------~ 284 282 280 278 g c: .Q 276 iii > cu w 274 272 270 268 -1-----~-~-~-~-~~-~-~-~--~-~-~-~--~-~-~-..----~-~-~-.. 0 100 200 300 400 500 Station (ft) Legend WSPF2 WS PF 1 Ground " lneff • Bank Sta Encroachment g c .Q iii > Q) w 284 282 280 278 276 274 272 270 FEMA-BC W/ 3-1 OX7 RCS-RAISED SC-ASBUIL T Plan : Duplicate Effective Model+3-1 OX7 RCB 11/8/2005 Section 532 268 +-~~~.-----.~~~-.~-.-~~~~~~-,.-----.~~~~~--..--~.--~~~~~~--.~-.~~~--..--~--,.-~~--, 0 100 200 300 400 500 Station (ft) Legend WS PF2 WSPF 1 Ground ... lneff • Bank Sta Encroachment g c .Q -;;; > Cl> Ui FEMA-BC W/ 3-10X7 RCS -RAISED SC-ASBUILT Plan : Duplicate Effective Model+3-1 OX7 RCB 11 /8/2005 Section 554 =Section 510 Effective Model ----------.05 ------------.065 --->---------.08 --------- 282 280 278 276 1o-------------+--·------------_, 274 272 270 268 +--~-~~-~--.--~-~-~-~---,-~-~---,--~-.--~-~~-~---,-----r--~-~-~---, 0 100 200 300 400 500 Station (ft) Legend WSPF2 WS PF 1 Ground • Bank Sta Encroachment KLING ENGINEERING & SURVEYING Consulting Engineers • Land Surveyors 4101 Texas Avenue , Suite A Bryan , Texas 77802 Tel. 979/846-6212 Fax 979/846-8252 . ·:'fO: City of College Station -Development Services DATE : PROJECT NO.: April 17 , 2006 P.O. Box 4234 Bryan , Texas 77805 PROJECT NAME : Gateway Phase 2-4 Creek Cross ing ATTENTION: Alan Gibbs WE TRANSMIT: D Under Separate Cover ./Enclosed VIA: D Mail ./ Messenger D Federal Express D Lone Sta r Overnight D UPS D Special Courier D Picked Up By Your Office NO . 7 Construction Plans 3 -for City REFERENCE: THE FOLLOWING : D Prints D Copies D Orig i nals D Plat D F ield Notes ./Plans D Report D Estimate D Cut Sheets D Computer Printout D File D Contract D Other -Invoice DESCRIPTION \ 4 -for approval stamp & return to K .E.S . Please call or email when ready for pick-up Construction Plans FOR: D Your Review & Approval D Your Review & Comment D Your Review & Distribution D Your Review , Revision & Return ./Your S ignatu re & Return ./Your File and/or Use D For Filing at the Courthouse D As Requested By : D Please Acknowledge Receipt of Enclosures D Please Return Enclosures To D Copies Of This Letter Of Transmittal Sent To : If Enclosu res Are Not As Noted Please Notify Us At Once . DEVELOPMENT PERMIT PERMIT NO . 04-36 CITY OF C OLLEGE STATIO N Planning & Dew'4pmm t Services FOR AREAS INSIDE THE SPECIAL FLOOD HAZARD AREA RE: CHAPTER 13 OF THE COLLEGE STATION CITY CODE SITE LEGAL DESCRIPTION: "Gateway Subdivision Phases 2 - 4 DATE OF ISSUE: 5/3/6 OWNER: Brazos Gateway Place Dev I David Scamardo 1289 N. Harvey Mitchell Pkwy Bryan, TX 77803 SITE ADDRESS: DRAINAGE BASIN: Burton Creek VALID FOR 1 MONTHS CONTRACTOR: TYPE OF DEVELOPMENT: Full Development Permit SPECIAL CONDITIONS: All construction must be in compliance with the approved construction plans All trees required to be protected as part of the landscape plan must be completely barricaded in accordance with Section 7.5 .E ., Landscape/Streetscape Plan Requirements of the City's Unified Development Ordinance, prior to any operations of this permit. The cleaning of equipment or materials within the drip line of any tree or group of trees that are protected and required to remain is strictly prohibited . The disposal of any waste material such as, but not limited to, paint, oil , solvents, asphalt, concrete, mortar, or other harmful liquids or materials within the drip line of any tree required to remain is also prohibited . Permit must be in compliance with all local, state and federal requirements and permits -i.e . TPDES TXR150000. The Contractor shall take all necessary precautions to prevent silt and debris from leaving the immediate construction site in accordance with the approved erosion control plan as well as the City of College Station Drainage Policy and Design Criteria . If it is determined the prescribed erosion control measures are ineffective to retain all sediment onsite , it is the contractors responsibility to implement measures that will meet City, State and Federal requirements . The Owner and/or Contractor shall assure that all disturbed areas are sodden and establishment of vegetation occurs prior to removal of any silt fencing or hay bales used for temporary erosion control. The Owner and/or Contractor shall also insure that any disturbed vegetation be returned to its original condition , placement and state . The Owner and/or Contractor shall be responsible for any damage to adjacent properties, city streets or infrastructure due to heavy machinery and/or equipment as well as erosion, siltation or sedimentation resulting from the permitted work. In accordance with Chapter 13 of the Code of Ordinances of the City of College Station, measures shall be taken to insure that debris from construction, erosion, and sedimentation shall not be deposited in city streets, or existing drainage fac ilities . I hereby grant this permit for development of an area inside the special flood hazard area . All development shall be in accordance with the plans and specifications submitted to and approved by the City Engineer in the development permit application for the above named project and all of the codes and ordinances of the City of College Station that apply. Date ~/?ft Owner/ Agent/Contractor Date Page 1of1 Alan Gibbs -Gateway Crossing DP04-36 From: Alan Gibbs To: fred@klingeng.com Date: 3/13/2006 11:07:12 AM Subject: Gateway Crossing DP04-36 Fred, Following the ZBA variance approval, the associated plans are ready to go forward. Can you forward the attached construction plan comments as appropriate. J;. Provide c909 waterline. t/2. Depict how the proposed waterline will be placed vertically with regard to the top of the RCBCs and the drive ;.over. Sheet C4.0 would appear to be the best sheet to depict this . .,). Provide a 2 inch blow-off at the temporary deadend. v'~. Clarify the tie-in to the existing twelve inch. ;t".7-A minimum of an 8 inch gate valve is required at the tie-in. V 6,, Submit 4 revised sets for stamping. This will return one set for the contractor. VJ . Note that the LOMR is required upon completion of the construction. 8. Note the demolition of the existing oil access road from the proposed drive out to University Drive. Alan Gibbs, P.E. Sr. Asst. City Engineer City of College Station file://C:\Documents%20and%20Settings\agibbs\Local %20Settings\ Temp\G W} 00003 .HTM 3/13/2006 KLING ENGINEERING & SURVEYING ol-\~?Y~ \1\~~P-vt 4101 Texas Avenue, Suite A Bryan , Texas 77802 TO: City of College Station Development Services ATTENTION: Alan Gibbs WE TRANSMIT: 0 Under Separate Cover ./Enclosed VIA: OMail ./ Messenger 0 Federal Express 0 Lone Star Overnight OUPS 0 Special Courier 0 Picked Up By Your Office Consulting Engineers • Land Surveyors Tel. 979/846-6212 Fax 979/846-8252 P.O. Box 4234 Bryan, Texas 77805 DATE: November 9 , 2005 PROJECT NO.: PROJECT NAME: Gateway Ph . 4 Creek Crossing REFERENCE: THE FOLLOWING : 0 Prints 0 Copies 0 Originals D Plat 0 Field Notes 0 Plans ./Report D Estimate 0 Cut Sheets 0 Computer Printout 0 File 0 Contract D Other -See Below FOR : ./ Your Review & Approval 0 Your Review & Comment ./ Your Review & Distribution 0 Your Review, Revision & Return 0 Your Signature & Return 0 Your File and/or Use O As Requested By: 0 Please Acknowledge Receipt of Enclosures 0 Please Return Enclosures To 0 Copies Of This Letter Of Transmittal Sent To: NO . DESCRIPTION 2 Drainage Documentation Letter If Enclosures Are Not As Noted Please Notify Us At Once . Signed: Fred Paine KLING ENGINEERING & SURVEYING 4101 S. Texas Avenue , Suite A B1·yan, Texas 77802 TO: City of College Station ATTENTION: Alan Gibbs WE TRANSMIT: D Under Separate Cover I Enclosed VIA: DMail I Messenger D Federal Express D Lone Star Overnight DUPS D Special Courier D Picked Up By Your Office NO . Consulting Engineers • Land Surveyors Email: stewart@klingeng.com Tel. 979/846-6212 Fax 979/846-8252 P.O. Box 4234 Bryan, Texas 77805 DATE: February 17 , 2006 PROJECT NO.: PROJECT NAME: Gateway Phases 2-4 Creek Crossing REFERENCE: THE FOLLOWING: D Prints I Copies D Originals D Plat D Field Notes D Plans D Report D Estimate D Cut Sheets D Computer Printout D File D Contract D Other DESCRIPTION FOR: D Your Review & Approval D Your Review & Comment D Your Review & Distribution D Your Review, Revision & Return D Your Signature & Return .f Your File and/or Use D As Requested By: D Please Acknowledge Receipt of Enclosures D Please Return Enclosures To D Copies Of This Letter Of Transmittal Sent To: 20 sets of the site plan to include ZBA packets 1 letter addressing items in Ch . 13 Flood Hazard Protection Ordinance . If Enclosures Are Not As Noted Please Notify Us At Once. Signed: Fred Paine From: To: Smith , Steve Date: Time: Subject: Place: Alan Gibbs Administrative Conference Room ; Alan Gibbs ; Dunn , Joey ; Hurt, Eric ; Smith , Mark ; 12/19/2005 2 :30 :00 PM -3:30 :00 PM Gateway Crossing Administrative Conference Room This is a meeting to discuss the Gateway (Ph . 4) proposed drive/creek crossing . David Scamardo , Stuart Kling , and Fred Paine plan on attending . Fire has the issue of secondary access in conjunction with the existing Villas . Steve Smith has provided a letter stating that additional structures will not be permitted without an additional , separate and remote access. Additionally , in a September 2005 Pre-Application Meeting discussing the Villas and this adjacent acerage , Kling was informed that a secondary access would be required as noted . Planning issues are Platting and "only" for oil field access replacement. JP has also been in discussion in regard the adjacent property to the west involving cross access -in proximity to the oil field drive apron . Engineering issues include floodway encroachment/zero rise method, CLOMR/LOMR , and culdesac . Engineering reviewed an earlier version of this submittal in July 2004 as a Development Permit -in this review it was indicated the driveway could stand alone but would need to be submitted as a Site Plan . Additionally , it appears that a public water line will need to be extended to Phase 4 if it is required to plat. Alan P. Gibbs, P.E. Sr. Asst. City Engineer -Development Public Works Department City of College Station P . 0 . Box 9960 College Station , Texas 77842 Ph : (979) 764-3570 Fx: (979) 764-3496 agibbs@cstx.gov www.cstx .gov CC: Prochazka , Jennifer; Reeves , Jennifer I From: To: Date: Subject: Fred, Alan Gibbs Paine , Fred 1/17/2006 8:27 :18 AM Re : Gateway Phase 3 & 4 Creek Crossing You are correct regarding the Preliminary Plat and constructing the waterline and the crossing at the same time is okay . Alan »>"Fred Paine" <fred@klingeng .com> 1/16/2006 8:38 AM»> Thanks for your response Alan. I will prepare the ZBA variance request and submit this week . There is an approved preliminary plat for the property as of May 2003 (please refer to your files). Waterline & Driveway/drainage structure are planned to be constructed at the same time. Will this be an issue? Fred Pa ine KLING ENGINEERING & SURVEYING Consulting Engineers . Land Surveyors 4101 Texas Avenue, Suite A Bryan , Texas 77802 Telephone 979/846-6212 Fax 979/846-8252 -----Original Message ----- From : "Alan Gibbs" <Agibbs@cstx.gov> To : "Fred Paine" <fred@klinqeng .com> Cc : "Stewart Kling" <stewart@klingeng .com>; "David Scarmardo" <david@scarmardofoods .com> Sent: Friday, January 13 , 2006 5 :58 PM Subject: Re : Gateway Phase 3 & 4 Creek Crossing >Fred , > > 1. The City will recognize the submitted report as technically > satisfying zero rise per our discussion with Saleem Ashroff. Subsequent >conversations with Karl Watts will not permit the City to recognize this > method as zero rise in the future. > > 2 . Floodway encroachments requirements are listed in College Station > Code Ch .13 Sec 5. In short, a variance to ZBA is required which is > described in Section 6. Provide a application explaining the criteria > listed in A. and C.(5). > > 3. The subject tract needs to be platted in conjuction with this > Development Permit. Specifically , the preliminary plat must be approved >before the DP can be issued. > > 4. The Development Permit must be first issued for the waterline or > the waterline and the crossing -as the waterline is required in > conjunction with the platting . > > 5. A Letter of Map Revision is required in accordance with Code of > Federal Regulations 44 65.3 . Floodway revisions must be in accordance >with 65.7 . > > Let me know if you have additional questions . > > ~~~~~~~~~~~~~~~~~~~~ >Alan P. Gibbs , P.E. > Sr. Asst. City Engineer -Development > Public Works Department > City of College Station > P. 0 . Box 9960 >College Station , Texas 77842 > Ph : (979) 764-3570 > Fx : (979) 764-3496 > agibbs@cstx.gov > www.cstx .gov CC: Kling, Stewart; Scarmardo , David )-"-0~ ~~ 7 ~ ~ Jd - <2-CP~~d- , From: To: Date: Subject: Fred , Alan Gibbs Paine , Fred 1/17/2006 8 :27 :18 AM Re : Gateway Phase 3 & 4 Creek Crossing You are correct regarding the Preliminary Plat and constructing the waterline and the crossing at the same time is okay. Alan >»"Fred Paine" <fred@klingeng .com> 1/16/2006 8 :38 AM»> Thanks for your response Alan . I will prepare the ZBA variance request and submit this week . There is an approved preliminary plat for the property as of May 2003 (please refer to your files). Waterline & Driveway/drainage structure are planned to be constructed at the same time . Will this be an issue? Fred Pa ine KLING ENGINEERING & SURVEYING Consulting Engineers . Land Surveyors 4101 Texas Avenue , Suite A Bryan , Texas 77802 Telephone 979/846-6212 Fax 979/846-8252 -----Original Message ----- From : "Alan Gibbs" <Agibbs@cstx .gov> To: "Fred Paine" <fred@klingeng .com> Cc : "Stewart Kling " <stewart@klingeng .com>; "David Scarmardo" <david@scarmardofoods .com> Sent: Friday, January 13, 2006 5:58 PM Subject: Re : Gateway Phase 3 & 4 Creek Crossing >Fred , > > 1. The City will recognize the submitted report as technically > satisfy ing zero rise per our d iscussion with Saleem Ashroff. Subsequent >conversations with Karl Watts will not permit the City to recognize this > method as zero rise in the future . > > 2 . Floodway encroachments requirements are listed in College Station > Code Ch .13 Sec 5 . In short, a variance to ZBA is required which is > described in Section 6 . Provide a application explaining the criteria > listed in A. and C .(5). > > 3. The subject tract needs to be platted in conjuction with this > Development Permit. Specifically , the prel iminary plat must be approved > before the DP can be issued. > > 4. The Development Permit must be first issued for the waterline or > the waterline and the crossing -as the waterline is required in > conjunction with the platting . > > 5. A Letter of Map Revision is required in accordance with Code of > Federal Regulations 44 65.3 . Floodway revisions must be in accordance >with 65.7. > > Let me know if you have additional questions . > > ~~~~~~~~~~~~~~~~~~~~ >Alan P. Gibbs, P.E . > Sr. Asst. City Engineer -Development > Publ ic Works Department > City of College Station > P. 0 . Box 9960 >College Station , Texas 77842 > Ph : (979) 764-3570 > Fx : (979) 764-3496 > agibbs@cstx.gov > www.cstx.gov CC: Kling , Stewart; Scarmardo , David - . ,. . . - , \.. .,./ (., ,, ' ..-.. Cavt Wt II ~l\? ,~1"1~ 6~b 0 ~~ 'I I . " IJ L/U?M~ I L-oMt2- I -~"--u ,z;t...c, . ~ -'\.{_ ~--' , / r/ (p l ' "' '" -~:·~~Wt ~ ~ ·,/?Y\~j:.+~ .I > " /:oh/ ., -'., -r I ~ ~;>~,.-~ ~ A/J,bi_ ~ ~.:·-~ ..... ,,, ~ ,,,,,_ .... -\ (/ ..., -, I - --~ ~ b?rn< '! #,, 4/ .57Jo I f)OD ' _____,, /.~A,-./,_,_-~ ..,,._..., ----- I ~o.~ J.. 01.-1 /l.c1 ~~ I )t_,jj,.,_ - I l1~ t'l v-: ...... II (Jr) i ... - 0)i7 ~n("'*1 {&-,~ '-- ~ • \.. >r OJ-f 5o p 04--56 - =====-~====tt=-- I ~=tt1 ===-----=~J ===t=t==- 1 I I I I I \ ~~~~~=======~~~~~ G>2<0 5r T $0".s~tvj _ 0 ~ / [ l; '"f---1)~ i/ AS lAA9,,D s. -c; (_f/W( Cef ~ ~ ~t1-1.-{ -_____ __....._ July 15 , 2004 TO : FROM : CITY OF COLLEGE STATION DEVELOPMENT SERVICES 1101 Texas Avenue South, PO Box 9960 College Station, Texas 77842 Phone 979. 764.3570 I Fax 979. 764 .3496 MEMORANDUM Fred Paine , Kling Engineering & Surveying, via fax 846.8252 1/""' Bridgette George, Assistant Development Manager SUBJECT : DP-GATEWAY PHASE 2 & 4 Staff reviewed the above-mentioned construction documents as requested but could not complete their review. The following page is a preliminary list of staff review comments detailing items that need to be addressed. If you have any questions or need additional information , please call Spencer Thompson at 979 .764 .3570 . Attachments : Staff review comments cc : David Scarmardo . Brazos Gateway Place Dev'I., via fax 822.1763 v Steve Davidow, DCI Engineers , Inc ., via fax 509.455.7492 / Case file #04-00100036 Home of Texas A&M University • / • STAFF REVIEW COMMENTS Project: DP-GATEWAY PHASE 2 & 4 -04-00100036 ENGINEERING & PLANNING 1. The items that have been submitted require Site Plan approval. A request for a Development Permit is only pertinent after a Site Plan has been approved. 2 . This item has not been fully reviewed at this time due to Comment #1. Staff has not received a Site Plan to date . Therefore, this item is being returned to you. No design comments are provided at this time . Reviewed by : Spencer Thompson Date : July 15 , 2004 NOTE: Any changes made to the plans , that have not been requested by the City of College Station , must be explained in your next transmittal letter and "bubbled " on your plans. Any additional changes on these plans that have not been pointed out to the City , will constitute a completely new review . 2 of 2 From: To: Date: Subject: Fred , Alan Gibbs fred@klingeng .com 4/25/2005 5 :24 :31 PM Gateway Subdivision Ph 4 -DP 04-36 Please forward this response to Kevin Love at Bury and Partners . As previously discussed , the associated report is satisfactory with the following comments : 1. FYI : The addition of approximately 30 cfs will need to accounted in the vicinity bridge crossing Kling has previously submitted . Although this increase is negligible in relation to Burton Creek and acceptable in that regard , the zero rise for the crossing may be difficult to achieve . 2 . Provide the associated construction plans for the report to be stamped . Thanks , Alan Alan P. Gibbs, P.E . Sr. Asst. City Engineer -Development Public Works Department City of College Station P. 0. Box 9960 College Station, Texas 77842 Ph : (979) 764-3570 Fx : (979) 764-3496 agibbs@cstx.gov www .cstx .gov CC: George , Bridgette ~ Bury Partners ENGINEERING SOLUT I ONS Letter of Transmittal To. Mr. A lan Gibbs Co mpany City of College Station Address: 1101 Texas Avenu e College Station, Texas 77840 Re : Gateway Subdivision Phase 4 D Delivery 181 Overni ght Quantity Description of ltem(s) Response Letter with attachments -No tes- D Pick-Up 4-Dt-o~ Bu ry+P artners-SA, In c . % 10000 San Pedro Ave ., Ste. 100 San Antonio, Texas 78216 q '"(){).A. (2 10) 525-9090 -Tel e pho ne ~ I \ ' (210) 525-0529 -Fax 04-3(?> Project No .. 367-02.36 Date: 03 /31105 cc : Fred P a in e -Kling E n g in eers D Courier D Oth er Please contact our office at 210/525-9090 if you have an y questions . Thank you . Prepa red By: I p Bury+ Partners ENGINEERING SOLUTIONS March 31, 2005 Mr. Alan P. Gibbs , P .E. Public Works Department City of College Station P .O . Box 9960 College Station , Texas 77842 Re: Gateway Phase 4 Drainage Report Dear Mr. Gibb s : Please consider this letter a formal respons e to your comments emailed to Fred Pain e o n March 18, 2005 . The responses are in the same order as the comments to make them easier to follow . 1 . Comment: Address the issue of increasing the flows from point B to A and justify what impact that will have on the WSE. Response: Because the area between Point B and Point A is a tributary to Burton C reek and joins Burton Creek shortly down stream , the flow ar e a is alread y extreme ly la rge. The addition of ±30 cfs is a very small percentage of the existing flow s and will have a negligible affect on the Water Surface Elevation (WSE). Developments adjacent to the tributary should be required to plat drainage easements bas ed upon ultim a te development. 2. Comment: Clarify the computation and signifi can ce of la g time . Response: The lag time is the time difference between the center of m ass of rain fa ll excess and the peak of the unit hydrograph . For watersheds that do not have periodically monitored gauges, the lag time is taken as 60 % of T c. The s ignificance of the lag time is that it is needed to compute the SCS hydrograph. BURY +PARTNERS-SA. INC. Consulting Engineers and Suneyor> Austin Dallas Houston San Antonio Washington. D.C. I 0000 San Pedro Avenue Suite 100 San Antonio. Texas 78216 (210)525-909() 11111'11<1\I (210) 525 -05291 \\ Bury + Partners ENGINEERING SOLUTIONS Mr. Alan P. Gibbs, P.E. March 31, 2005 Pa ge 2 3 . Comment: Provide the associated routing analysis of the detention pond . Response: Attached to this letter are output files of the analysis of the pond durin g each storm event for both existing and proposed conditions . 4. Comment : Provide co nstru ction plan s detailin g the prop osed modification s of detenti on pond outlet. Response: Kling Engineers will provide the requested construction plans at the tim e of Phase 4 development. If you should have any questions, please do not hesitate to contact our office. Kevin Love, P .E. Project Engineer cc : Fred Paine Kling Engineers Enclosures I: \367 \002\Letter\03 3 l 05 Gibbs .doc. hs Project Start of Run End of Run Execution Time Computed Results HMS * Summary of Results for HD Pond Gateway Subdivision Run Name EXSyr 26Jan05 0000 27Jan05 0000 30Mar05 1318 Basin Model : Existing Conditions Met. Model : 5 year storm Control Specs : Standard Peak Inflow Peak Outflow Total Inflow Total Outflow 272 .58 (cfs) 53.595 (cfs) 6.04 (in) 5.82 (in) Date/Time of Peak Inflow 26 Jan 05 1200 Date/Time of Peak Outflow 26 Jan 05 1217 Peak Storage 8.2510(ac-ft) Peak Elevation 265.68(ft) HMS * Summary of Results for HD Pond Project Gateway Subdivision Run Name EXlOyr Start of Run End of Run Execution Time 26Jan05 0000 27Jan05 0000 30Mar05 1318 Basin Model. Met . Model. : Existing Conditions : 10 year storm Computed Rasul.ts Peak Infl.ow Peak Outfl.ow Total. Inf l.ow Total. Outfl.ow 325 .97 (cfs) 62. 206 (cfs) 7 .24 (in) 6 .98 (in) Control. Specs : Standard Date/Time of Peak Infl.ow 26 Jan 05 Date/Time of Peak Outfl.ow 26 Jan 05 Peak Storage 9.8688(ac-ft) Peak El.evation 266.32(ft) 1200 1217 Project Start of Run End of Run Execution Time Computed Results HMS * Summary of Results for HD Pond Gateway Subdivision Basin Model Met . Model Run Name EX25yr : Existing Conditions : 25 year storm 26Jan05 0000 27Jan05 0000 30Mar05 1318 Control Specs : Standard Peak Inflow Peak Outflow Total Inf low Total Outflow 388 .21 (cfs) 70.805 (cfs) 8 .63 (in) 8 .32 (in) Date/Time of Peak Inflow 26 Jan 05 1200 Date/Time of Peak Outflow 26 Jan 05 1218 Peak Storage ll .806(ac-ft) Peak Elevation 267.04(ft) Project Start of Run End of Run Execution Time Computed Results HMS * Summary of Results for HD Pond Gateway Subdivision Run Name EXSOyr 26Jan05 0000 27Jan05 0000 30Mar05 1318 Basin Model : Existing Conditions Met. Model : 50 year storm Control Specs : Standard Peak Inflow Peak Outflow Total Inflow Total Outflow 432 .63 (cfs) 75 .560 (cfs) 9 .63 (in) 9 .28 (in) Date/Time of Peak Inflow 26 Jan 05 1200 Date/Time of Peak Outflow 26 Jan 05 1219 Peak Storage 13 .226(ac-ft) Peak Elevation 267.55(ft) Project Start of Run End of Run Execution Time Computed Results HMS * Summary of Results for HD Pond Gateway Subdivision Run Name EXlOOyr 26Jan05 0000 27Jan05 0000 30Mar05 1317 Basin Model : Existing Conditions Met . Model : 100 year storm Control Specs : Standard Peak Inflow Peak Outflow Total Inf low Total Outflow 485.91 (cfs) 80.921 (cfs) 10 .83 (in) 10 .44 (in) Date/Time of Peak Inflow 26 Jan 05 1200 Date/Time of Peak Outflow 26 Jan 05 1220 Peak Storage 14.955(ac-ft) Peak Elevation 268.16(ft) HMS * Summary of Results for HD Pond (Mod) Project Gateway Subdivision Run Name PRSyr Start of Run End of Run Execution Time 26Jan05 0000 27Jan05 0000 30Mar05 1319 Basin Model : Proposed Conditions Met . Model : 5 year storm Control Specs : Standard Computed Results Peak Inflow Peak Outflow Total Inflow Total Outflow 272.58 (cfs) 23 .061 (cfs) 6.04 (in) 5 .52 (in) Date/Time of Peak Inflow 26 Jan 05 1200 Date/Time of Peak Outflow 26 Jan 05 1237 Peak Storage 9 .8049(ac-ft) Peak Elevation 266.29(ft) HMS * Summary of Results for HD Pond (Mod) Project Gateway Subdivision Run Name PRlOyr Start of Run End of Run Execution Time 26Jan05 0000 27Jan05 0000 30Mar05 1319 Basin Model : Proposed Conditions Met. Model : 10 year storm Control Specs : Standard Computed Results Peak Inflow Peak Outflow Total Inflow Total Outflow 325.97 (cfs) 26 .366 (cfs) 7.24 (in) 6.53 (in) Date/Time of Peak Inflow 26 Jan 05 Date/Time of Peak Outfl ow 26 Jan 05 Peak Storage ll.804(ac-ft) Peak Elevation 267 .04(ft) 1200 1239 HMS * Summary of Results for HD Pond (Mod) Project Gateway Subdivision Run Name PR25yr Start of Run End of Run Execution Time 26Jan05 0000 27Jan05 0000 30Mar05 1319 Basin Model : Proposed Conditions Met . Model : 25 year storm Control Specs : Standard Computed Results Peak Inflow Peak Outflow Total Inflow Total Outflow 388.21 (cfs) 29.610 (cfs) 8 .63 (in) 7 .64 (in) Date/Time of Peak Inflow 26 Jan 05 1200 Date/Time of Peak Outflow 26 Jan 05 1242 Peak Storage 14 .193(ac-ft) Peak Elevation 267 .89(ft) HMS * Summary of Results for HD Pond (Mod) Project Gateway Subdivision Run Name PR50yr Start of Run End of Run Execution Time 26Jan05 0000 27Jan05 0000 30Mar05 1319 Basin Model Met . Model : Proposed Conditions : 50 year storm Computed Results Peak Inflow Peak Outflow Total Inf low Total Outflow 432.63 (cfs) 31 .705 (cfs) 9 .63 (in) 8 .41 (in) Control Specs : Standard Date/Time of Peak Inflow 26 Jan 05 Date/Time of Peak Outflow 26 Jan 05 Peak Storage 15 .929(ac-ft) Peak Elevation 268.50(ft) 1200 1244 HMS * Summary of Results for HD Pond (Mod) Project Gateway Subdivision Run Name PRlOOyr Start of Run End of Run Execution Time 26Jan05 0000 27Jan05 0000 30Mar05 1319 Basin Model : Proposed Conditions Met . Model : 100 year storm Control Specs : Standard Computed Results Peak Inflow Peak Outflow Total Inf low Total Outflow 485 .91 (cfs) 51.436 (cfs) 10 .83 (in) 9 .35 (in) Date/Time of Peak Inflow 26 Jan 05 1200 Dat e/Time of Peak Outflow 26 Jan 05 1230 Peak Storage 17 .68 9 (ac-ft) Peak Elevation 269 .ll(ft) From: To: Date: Subject: Fred , Alan Gibbs fred@k lingeng .com 3/18/2005 5 :26 :56 PM Gateway Ph 4 -Drainage Report - Please forward these comments to Bury and Partners : PP 1. Address the issue of increasing the flows from point B to A and justify what impact that will have on the WSE . 2. Clarify the computation and significance of the lag time. 3. Prov ide the associated routing analyses of the detention pond . 4 . Prov ide construction plans detailing the proposed modifications of detention pond outlet. Thanks , Alan Alan P. Gibbs , P.E. Sr. Asst. City Engineer -Development Public Works Department City of College Station P. 0 . Box 9960 College Station , Texas 77842 Ph: (979) 764-3570 Fx : (979 ) 764-3496 agibbs@cstx .gov www .cstx.gov CC: Cotter, Carol ; George , Bridgette KLING ENGINEERING & SURVEYING Consulting Engineers • Land Surveyors 4101 Texas Avenue, Suite A Bryan, Texas 77802 Memo: B.J. Kling, P.E., R.P.L.S. S .M. Kling, R.P .L.S. Telephone 979/846-6212 Fax 979 / 846-8252 To: City of College Station Development Services c/o Bridgette George From: Fred Paine Re: Future Gateway Phase 4 Development Poat Office Box 4234 Bryan, Texas 77805 March 9, 2005 Accompanying this memo are two copies of a drainage report for the future Gateway Phase 4 Subdivision prepared by Bury + Partners in San Antonio. This report amends the original Phase 1 and Phases 2-4 reports . It documents conditions that will allow Gateway Phase 4 to develop utilizing the existing detention facility constructed within Phase 1. Please review and comment on the report at your earliest convenience. Please copy Kling Engineering & Surveying on all comment correspondence. We would ask that the report be kept on file and utilized at such time that Phase 4 development occurs. Should you have any questions , please do not hesitate to call. Q~t2-s, Fred Paine KLING ENGINEERING & SURVEYING ~'.\~ ~)~ ~~I() 4101 Texas Avenue, Suite A Bryan, Texas 77802 Consulting Engineers • Land Surveyors Tel. 979/846-6212 Fax 979/846-8252 P.O. Box 4234 Bryan , Texas 77805 TO: City of College Station -Development Services DATE: March 09, 2005 ATTENTION: Bridgette George WE TRANSMIT: O Under Separate Cover ./Enclosed VIA: DMail ./ Messenger O Federal Express O Lone Star Overnight OUPS O Special Courier D Picked Up By Your Office NO . 1 Cover Letter 2 Drainage Report PROJECT NO.: PROJECT NAME: Gateway SubdMsion Phase 4 REFERENCE: THE FOLLOWING: 0 Prints 0 Copies D Originals D Plat 0 Field Notes D Plans ./Report D Estimate 0 Cut Sheets O Computer Printout D File D Contract O Other -Invo ice DESCRIPTION Drainage Report FOR: 0 Your Review & Approval ./Your Review & Comment 0 Your Review & Distribution D Your Review , Revision & Return O Your Signature & Return O Your File and/or Use 0 As Requested By: O Please Acknowledge Receipt of Enclosures O Please Return Enclosures To D Copies Of This Letter Of Transmittal Sent To: If Enclosures Are Not As Noted Please Notify Us At Once. Signed : Fred Pain Austin Dallas Houston San Antonio Washington , D.C. DRAINAGE REPORT For DWS, Inc. Gateway Subdivision Phase 4 Forrest Drive and University Drive College Station, Texas Prepared by Bury+ Partners -SA, Inc. 10000 San Pedro, Suite 100 San Antonio, Texas 78216 February 2005 I P Bury+ Partners ENGINEERING SOLUTIONS DRAINAGE REPORT For DWS, Inc. Gateway Subdivision Phase 4 Forrest Drive and University Drive College Station, Texas Prepared by Bury+ Partners -SA, Inc. 10000 San Pedro, Suite 100 San Antonio, Texas 78216 "I hereby certify that this report for the drainage design of the Gateway Subdivision, Phases 4, was prepared under my supervision in accordance with the provisions of the City of College Station Drainage Policy and Design Standards for the owners thereof." 2-16-oS Registered Professional Engineer State of Texas No. 93563 February 2005 !:\Drainage Reports \DWS , lnc \367-002 \February 2005 \fly sheet .d cx::.hs ~---------------BURY + PARTNERS-------------------' TABLE OF CONTENTS INTRODUCTION ............................................................................................ 1 METHODOLOGY FOR DETENTION DESIGN ...................................................... 1 EXISTING CONDITIONS ................................................................................ 2-3 PROPOSED CONDITIONS .............................................................................. 3-4 RESULTS .................................................................................................... 4-5 CONCLUSION ............................................................................................... 5 INSPECTION ................................................................................................. 3 EXIDBITS VICINITY MAP ................................................................................. EXHIBIT 1 EXISTING DRAINAGE AREA MAP ....................................................... EXHIBIT 2 PROPOSED DRAINAGE AREA MAP ..................................................... EXHIBIT 3 APPENDICES CITY OF COLLEGE ST A TION SCS TABLES ........................................ APPENDIX A SCS EXISTING CONDITIONS ........................................................... APPENDIX B SCS PROPOSED CONDITIONS .......................................................... APPENDIX C ....__------------BURY+PARTNERS---------------' INTRODUCTION The Gateway Subdivision Phase 4 is located near the intersection of University Drive and Forest Drive in College Station, Brazos County, Texas. Please see the location map in Exhibit 1. For Phase 4, the development consists of a ±6.625 acres in the western comer of the overall development , as shown on Exhibits 2 and 3 . These Exhibits also show a tributary to Burton Creek that passes through the site. A FEMA Flood Study to determine the limits and elevations of the 100-year floodplain was previously prepared and submitted for approval by Mitchell & Morgan, LLP. The purpose of this drainage report i ~ to analyze the pre-developed and storm water runoff condition and to prove ons1te detention will not be required by area DA3P. Instead, a modification to the outfall structure of the regional detention pond buil t by The Home Depot will reduce the overall runoff generated by the overall development. The detention pond designed for the ±32 acre drainage area 2 (The Home Depot and future retail space) was designed with the construction documents for The Home Depot and was built at the same time. This detention pond was over-designed to account for the ultimate development of the entire area. The calculations in this report will prove that changing the outfall structure of this pond at the same time as developing DA3P, the overall storm water runoff at Point " A " will remain at or below existing conditions. In accordance with the City of College Station Ordinance #1728 , the following narratives , calculations, and exhibits are submitted for your review , comments , and approval for the proposed development. METHODOLOGY FOR DETENTION DESIGN The software package HEC-HMS, by the Hydrologic Engineering Center of the US Corps of Engineers, was used for this detention design . The flow rates are based on the SCS method using a 24-hour , Type II storm for the City of College Station. The 24-hour rainfall depth, curve number and initial loss are based on the City of College Station criteria. Please see Appendix A for these variables . The calculations based on these conditions are shown in the detailed HEC-HMS output and can be examined in the Appendices following this report . 1 EXISTING CONDITIONS The Existing Conditions Area Map (Exhibit 2) shows DA3P to be ±6.625 acres with a CN value of 75 . All other drainage areas were accounted as they are now, except DA2, which was assumed as ultimate development. The figures for each drainage area and the peak flow of points A and B are summarized in the following tables . TABLE 1 Drainage Area CN Tc Lag Area (MI2) (SCS) (Min) (Min) DAI 0.066407 77 16 .7 10 .0 DA2 0.049641 94 12 .0 7 .2 DA4 0.012625 77 10.0 6 .0 DAlAP 0.009623 91 10 .0 6 .0 DAlBP 0.004841 91 10.0 6.0 DA2P 0.006159 75 18.2 10.92 DA3P 0.010352 75 10.0 6.0 DA4P 0.009075 75 10.0 6.0 TABLE2 Study 100 Yr 50Yr 25 Yr 10 Yr 5 Yr Point (cfs) (cfs) (cfs) (cfs) (cfs) A 787 .8 690.1 609.2 493 .6 394.9 B 211.2 183.2 159.9 127.4 99 .8 Since the existing detention pond capacity is to be analyzed with this report, the following computation were used based on the approved drainage/detention report for the Gateway Subdivision Phase 1, dated August 2002 by Bury+ Partners , Inc . As mentioned earlier, the pond was designed and built by The Home Depot as a regional detention pond. It is oversized to detain extra storm water to keep the overall development below existing flow. On the construction documents of The Home Depot , the outfall was des igned as 2-36" pipes with an invert of 261. 0 feet and was constructed that way. However , due to an oversight, the approved drainage report accounts for only 1-36" pipe . So as not to profit from this oversight, the existing condition in this report assume only 1-36" pipe outfalls from the pond. The table below shows the elevation-area-outflow for the pond as approved in the previous report and as used for calculations in this report. 2 '-----------------BURY t PARTNERS ------------------' TABLE3 Contour Elevation Area (Acre) Outflow (cfs) Notes 261 0.679522 0.00 262 1.387420 5.10 263 1.700367 12.95 264 2.013315 17.61 265 2.310331 43.14 266 2 .607323 58.41 267 2 .734619 70.44 268 2.861915 79.8 1 269 2.891736 86.76 Spillway elevation 270 2.921534 255.20 Top of earthen berm PROPOSED CONDITIONS The Proposed Drainage Area Map (Exhibit 3) shows DA3P with a proposed CN value of 96 and DA2P with a proposed CN value of 94. All other drainage areas have the same CN as existing conditions. The figures for each drainage area and the peak flows are summarized in the following tables . TABLE4 Drainage Area CN Tc Lag Area (Ml2) (SCS) (Min) (Min) DAl 0 .066407 77 16.7 10.0 DA2 0 .049641 94 12 .0 7.2 DA4 0.012625 77 10.0 6.0 DAlAP 0.009623 91 10.0 6.0 DAlBP 0 .004841 91 10.0 6 .0 DA2P 0 .006159 94 10.0 6 .0 DA3P 0 .010352 96 10.0 6.0 DA4P 0 .009075 75 10.0 6.0 TABLES Study 100 Yr 50 Yr 25 Yr 10 Yr 5 Yr Point (cfs) (cfs) (cfs) (cfs) (cfs) A 768.4 674.3 596.1 486.2 391.7 B 244.7 216.1 192 .2 158.8 130.3 3 '------------------BURY PARTNERS--------------___. With the development of drainage area DA3P , the outfall structure of the regional detention pond will be modified. This modification includes closin I lu in one of the 36" i s which corresponds to the a roved drainage re rt · t r with a 30" di o nin into the other 36" i . The size and volume do not have to be changed because the pond was over es1gned when it was originally built. Table 6 below shows the new outflows along with the change in outflow of each 1 foot elevation. TABLE6 Contour Elevation Outflow ( cfs) Change in Outflow Notes (cfs) 261 0.00 0.00 262 3.30 -1.80 263 9.66 -3.29 264 13 .90 -3.71 265 14.96 -28.18 266 21.76 -36.65 267 26 .22 -44 .22 268 30 .02 -49.79 269 33.40 -53.36 Spillway elevation 270 198.46 -56.74 Top of earthen berm RESULTS The following table identifies the essential results of the detention model. TABLE7 Study Point 100 Yr 50Yr 25 Yr IO Yr 5 Yr (cfs) (cfs) (cfs) (cfs) (cfs) Existing A 787.8 690 .1 609.2 493.6 394.9 Proposed A 768.4 674 .3 596 .1 486 .2 391.7 Net Difference -19 .4 -15 .8 -13 .1 -7.4 -3 .2 Existing B 211.2 183 .2 159 .9 127.4 99 .8 Proposed B 244.7 216.1 192.2 158.8 130 .3 Net Difference +33 .5 +32 .9 +32.3 +31.4 +30.5 4 '------------------BURY+ PARTNERS-----------------' Based on the above calculations, Study Point A , which is the most downstream point of interest, shows a net decrease in peak flow for all investigated storm events. Since the existing detention pond was oversized and the outflow was further restricted , full storm detainment in the 5-100 year storms was achieved for DA3P without onsite detention. At Point B, there is a net increase of 32.1 cfs on average . This increase in runoff is due to the increase in the impervious cover on the subject tract. Since no future development can occur in DA4P or between Study Point B and Study Point A, additional detention for the 5-100 year storm events should only be required for increase in runoff generated at Study Point A . CONCLUSION The detention design restricts the post development runoff rates to the pre-development runoff rates and provides more than adequate storage . Therefore , the detention design satisfies the City of College Station Ordinance #1728 and should be approved. 5 EXHIBIT 1 VICINITY MAP I» Bury+ Partners fNOINEEllNO SOLUTIONS ..... ,....._. ...... ......... """' 1w1. (Ill,....._ ra (llt)mHlll .., ........... -..-... DATE: 02/17 /0!!J SCALE: N.T.S . VICINITY MAP N.T.S. COLLEGE ST A TION GATEWAY ESTATES COLLEGE STATION. TEXAS DRAWN BY: YOO Fil£: G:\3e7\~ EXHIBIT 1 SITE LOCATION MAP PROJECT No.: 367-02 EXHIBIT2 EXISTING DRAINAGE AREA MAP APPENDIX A CITY OF COLLEGE STATION SCS TABLES Storm Table III-3 24 Ho~r Ra1nfa11 Depths for 1Se1ected Storm Return Per1ods Return Period, "t ti 24 Hour Rainfall Depth, (Years) r (Inches) 2 4.5 5 6.2 10 . 7. 4 . 25 B.8 50 9.8 ·100 11.0 1 From National Weather Service Isohyetal Charts For Selected Return Periods 25 ti P" , /' Table III -4 Curve Nomber s and Perce nt Imperv io us Area For Various La nd Cover a nd La nd Use Ca t ego r y Land Cover: Natur ~1 Wood land s Na tu ral Gr as sl ands Landscape d Areas Impervious Areai (P a vemen t s , Rooftops , e tc.) Land Uses : Low Dens i t y Resident i al Medium Density Resident i al High Density Res i dential Business/Cormierc i al Industrial Pe r cen t Imperviou s 1. 0 0 0 100 38 52 65 85 72 Cur ve Number 75 75 77 98 84 87 91 94 92 1 From "Urban Hydrology For Small Watersheds, Technical Release No. 55" of the Soil Conserv~t1on Service 26 \ -;;& \ " \~ Tabl~ 4•1.-Ia values for ~off curve numbers Curve 1. °'11'.ve 1. number. (in) number (in) 40 8.000 'TO 0.857 41 2.878 11 0.817 42 2.762 72 0.778 43 2.651 78 <J.740 44 2.645 74 ().703 ,45 2.444 76 ().667 46 2.848 76 ·0.682 47 2.255 77 (),697 48 2.167. 7$ ().664 49 2.082 79 0.682 60 ·2.000 80 (),600 61 1.922 81 ().4G9 62. 1.846 S2 0.439 68 1.774 as 0.4iO 64 1.704 84 0.881 65 1.686 85. 0.858 66. 1.611 86 OJS26 67 1.609 87 0.299. 58 lMS 88 0.278 .. 69 1.890 89 0.247 60 1.888 90 0.222 61 1.279 91 0.198 62 1.226 92 0.1'14 68 L175 93 0.161 64 L126 N 0.1!,8 65 LOTl 85 OJ.05. 66 LOSO . t6 o.oss 61 ... 0.985 tr G.062 .. :'~ GS 0.9U 88 0.o41 69 0.899 " rfi APPENDIXB SCS EXISTING CONDITIONS HEC-HMS Project: Gateway Subdivision Basin Model: Existing DA2 DA1B P DA3P Proj ect Start of Run End o f Run Execu tion Time HMS * Summa ry o f Results Gateway Subdi v ision Run Name EX 5 y r Basin Model Exis t i ng Conditions Met . Model 26Jan0 5 0000 27Jan05 000 0 1 6 Feb05 0949 Control Specs 5 year storm Standard Hydrologic Discharge Time of Vo lume Drainage Element Peak Peak (ac Area (cf s) ft) (sq mi) DAl 2 23 .92 26 Jan 05 1203 16 .321 0.066 60" Pipe 223 .35 26 Jan 05 1204 16 .310 0.066 DA2 227.79 26 Jan 0 5 12 00 16.106 0.0 50 DAlAP 45 .397 26 Jan 05 1159 2 .9893 0.010 HD Pond 53 .595 26 Jan 05 1217 18 .401 0.059 DAlBP 22 .838 26 Jan 05 1159 1.5038 0 .005 DA2P 16 .298 26 Jan 05 1204 1.1296 0 .006 DA4P 29.444 26 Jan 05 1200 1.6674 0 .009 DA3P 33.588 26 Jan 05 1200 1.9021 0 .010 Point B 99 .831 26 Jan 05 1200 6.2030 0 .030 DA4 43 .216 26 Jan 05 1159 2.4555 0.013 Point A 394.89 26 Jan 05 1202 43 .370 0 .169 Project Start o f Run End of Run Ex e c ution Time HMS * Summa ry of Results Gateway Subdivision Run Name EXlOyr Basin Model Existing Conditions Met . Mo d el 26Jan0 5 0000 27Jan05 0000 16Feb05 0949 Control Spe c s 10 year storm S t andard Hydrologic Discharge Time of Volume Drainage Element Peak Peak (ac Area (cfs) ft) (sq mi) DAl 278 .44 26 Jan 05 1203 20.2 81 0 .0 66 60" Pipe 277 . 92 26 Jan 05 1 2 04 2 0 .2 69 0 .066 DA2 272 . 23 26 Jan 05 1200 19 .274 0 .050 DAlAP 54.491 26 Jan 05 1159 3 .6006 0 .010 HD Pond 62.206 26 Jan 05 1217 22 .049 0 .059 DAlBP 27.412 26 Jan 05 1159 1. 8114 0 .005 DA2P 21 .198 26 Jan 05 1204 1.4736 0.006 DA4P 38.199 26 Jan 05 1159 2 .1751 0 .009 DA3P 43 .574 26 Jan 05 1159 2 .4811 0 .010 Point B 127.38 26 Jan 05 1200 7 .9412 0 .030 DA4 55 .536 26 Jan 05 1159 3 .1765 0.013 Point A 493.60 26 Jan 05 1202 53 .435 0.169 Project Start of Run End of Run Execution Time HMS * Summary of Results Gateway Subdivision Run Name EX25yr Basin Model Exis ting Conditions Met . Model 26Jan05 0000 27Jan05 0000 16Feb05 0950 Control Specs 25 year storm Standard Hydrologic Discharge Time of Volume Drainage Element Peak Peak (ac Area (cfs ) ft) (sq mi) DAl 34 2.44 26 Jan 05 1203 24.976 0 .066 60" Pipe 341.88 26 Jan 05 1204 24.963 0 .066 DA2 324.03 26 Jan 05 1200 22. 971 0.050 DAlAP 65 .076 26 Jan 05 1159 4.3150 0.010 HD Pond 70 .805 26 Jan 05 1218 26.306 0.059 DAlBP 32 .738 26 Jan 05 1159 2.1707 0 .005 DA2P 26.999 26 Jan 05 1204 1. 8880 0.006 DA4P 48. 572 26 Jan 05 1159 2.7864 0.009 DA3P 55.407 26 Jan 05 1159 3 .1785 0.010 Point B 159.86 26 Jan 05 1200 10 .024 0.030 DA4 70.030 26 Jan 05 1159 4.0410 .o . 013 Point A 609.17 26 Jan 05 1202 65 .334 0 .169 Pro ject Start of Run End of Run Execution Time HMS * Summary of Results Gateway Subdivision Run Name EX5 0 yr Basin Model Existing Conditions Met . Model 26Jan05 0000 27Jan05 0000 16Feb05 0950 Control Specs 50 year storm Standard Hydro logic Discharge Time of Volume Drainage Element Peak Peak (ac Area (cfs) ft) (sq mi) DAl 388.24 26 Jan 05 12 0 3 28.36 6 0 .066 60" Pipe 387.30 26 Jan 05 12 0 4 28.3 49 0 .066 DA2 361. 01 26 Jan 05 12 00 25.612 0 .050 DAlAP 72 .626 26 Jan 05 1159 4 .8257 0 .010 HD Pond 75 .560 26 Jan 05 1219 29.347 0 .059 DAlBP 36 .535 26 Jan 05 1159 2.4277 0 .005 DA2P 31.168 26 Jan 05 1204 2.1900 0.006 DA4P 56 .020 26 Jan 05 1159 3.2320 0.009 DA3P 63 .903 26 Jan 05 1159 3 .6868 0.010 Point B 183.17 26 Jan 05 1200 11 . 537 0 .030 DA4 80.407 26 Jan 05 1159 4 .6693 0 .013 Point A 690.13 26 Jan 05 1202 73.902 0 .169 Project Start of Run End of Run Execution Time HMS * Summary of Results Gateway Subdivision 26Jan05 0000 27Jan05 0000 Basin Model Met . Model Run Name EXlOOyr Existing Conditions 16Feb05 0950 Control Specs 100 year storm Standard Hydrologi c Discharge Time of Volume Drainage Elemen t Peak Peak (ac Area (cfs) ft) (sq mi) DAl 443.21 2 6 Jan 05 1203 32.461 0 .066 60" Pipe 442.15 2 6 Jan 05 12 04 32.444 0 .066 DA2 405.38 26 Jan 05 1200 28.78 2 0 .050 DAlAP 81 .674 26 Jan 05 1159 5 .4390 0 .010 HD Pond 80.921 26 Jan 05 1220 32.994 0 .059 DAlBP 41.088 26 Jan 05 1159 2.7362 0 .005 DA2P 36.182 26 Jan 05 1204 2.5574 0 .006 DA4P 64. 972 26 Jan 05 1159 3.7741 0.009 DA3P 74 .114 26 Jan 05 1159 4.3052 0.010 Point B 211.17 26 Jan 05 1200 13.373 0.030 DA4 92.85 4 26 Jan 05 1159 5 .4319 0 .013 Point A 787.82 26 Jan 05 1202 84.242 0.169 HMS * Summ ary of Results for Poi nt A Project Start of Run End of Run Executio n Time Computed Results Gateway Su bdivi sion 26Jan05 0000 2 7 Jan05 0000 16Feb05 0815 Basin Model Met . Model Control Specs Run Name EX5yr Existing Conditions 5 year storm Standard Peak Outflo w To t a l Outflow 39 4 .89 (cfs ) 4 . 8 2 (i n) Date/Time of Peak Outfl ow 26 Jan 05 1202 HMS * Summary of Results for Point B Project Start of Run End of Run Execution Time Computed Results Gateway Subdivision 26Jan05 0000 27Jan05 0000 16Feb05 0815 Basin Model Met . Model Control Specs Run Name EX5yr Existing Conditions 5 year storm Standard Peak Outflow Total Outflow 99.831 (cfs) 3. 82 (in) Date/Time of Peak Outflow 26 Jan 05 1200 HM S * Summ ary of Results for Point A Project Start of Run End of Run Execution Time Computed Resu lts Gateway Su bdivi sion 26Jan05 0000 27Jan05 0000 16Feb05 0815 Basin Model Met. Model Control Specs Run Name EXl Oyr Existing Conditions 1 0 year s t orm Standard Peak Outflow Total Outflo w 6 09 .17 (c f s ) 7.26 (in) Da t e /Time o f Pe ak Outflo w 26 J a n 05 1202 Project Start of Run End of Run Execution Time Computed Results HMS * Summ ary of Results for Point B Gateway Subdivision 2 6Jan05 0000 2 7Jan05 0000 16Feb05 0815 Basin Model Met . Model Control Specs Run Name EXlOyr Existing Conditions 10 year storm Standard Peak Outflow Total Outflow 127 .3 8 (cfs) 4 .89 (in) Date/Time of Peak Outflow 26 Jan 05 1 2 00 Project Start of Run End of Run Execution Time Computed Resu l ts HMS * Summary of Re sults for Point A Gateway Subdivision 26Jan05 0000 2 7Jan0 5 0000 16Feb05 081 6 Basin Model Met . Model Control Specs Run Name EX25yr Existing Conditions 2 5 year storm Standard Peak Outflow Total Outflow 609.17 (cfs ) 7 .26 (in) Date/Time of Peak Outflow 26 Jan 05 1202 HMS * Summary of Results for Point B Project Start of Run End of Run Executi on Time Computed Results Gateway Subdivision 26Jan05 0000 27Jan05 0000 16Feb05 0816 Basin Model Met . Model Control Specs Run Name EX2Syr Existing Conditions 25 year storm Standard Peak Outflow Total Outflow 159 .86 (cfs ) 6 .18 (in) Date/Time of Peak Outflow 26 Jan 05 1200 HMS * Summ ary o f Re sults for Point A Pro j ect Start of Run End of Run Execu tion Time Co mputed Resul ts Gateway Subdivision 26Jan05 0000 2 7 Jan05 0000 16Feb05 0816 Basin Model Met . Model Control Specs Run Na me EX50yr Existing Condition s 50 year storm Standard Peak Ou t fl ow Total Outf l ow 690 .1 3 (cfs ) 8 .2 1 (in ) Date /Time of Peak Ou tfl o w 26 J an 05 1 2 0 2 HMS * Summary of Results for Point B Project Start of Ru n End of Run Exec utio n Time Computed Results Gateway Subdivision 2 6Ja n0 5 0000 27Jan05 0000 16Fe b05 0816 Basin Model Met. Model Control Specs Run Name EXSOyr Exi s ting Conditions 50 year storm Standard Peak Outflow Total Outfl ow 1 83.17 (cfs ) 7 .11 (in) Da t e /Time o f Peak Ou tfl ow 2 6 J an 05 1 2 00 HMS * Summ ary of Results f o r Po int A Project Start of Run End of Run Execution Time Computed Results Gateway Subdivision 26Jan05 0000 27Jan05 0000 16Feb05 0817 Basin Model Me t. Model Co n trol Specs Run Name EXlOO yr Existing Conditions 10 0 year storm Standard Peak Outflow T otal Outfl ow 787 . 8 2 (cfs) 9 .36 (in) Date/Time of Peak Outfl ow 26 Jan 05 1 2 0 2 HMS * Summary of Results for Point B Project Start of Run End of Run Execution Time Computed Results Gateway Subdivision 26Jan05 0000 27Jan05 0000 16Feb05 0817 Basin Model Met. Model Control Specs Run Name EXlOOyr Existing Conditions 100 year storm Standard Peak Outflow Total Outflow 211.17 (cfs) 8.24 (in) Date/Time of Peak Outflow 26 Jan 05 1200 APPENDIXC SCS PROPOSED CONDITIONS HEC-HMS Project: Gateway S ubd ivision Ba sin Model: Proposed DA1AP DA2P DA4P DA3P DA4 HD Pond (Mod ) Poi nt B DA1 Po int A Pro j ect Start of Run End of Run E xecu tion Time HMS * Summary of Results Gateway Subdivi sion Run Name PR5yr Bas i n Model Met . Model 26J an05 0000 2 7 Jan05 0000 1 6 F e b0 5 0 951 Co ntrol Spe cs Propo s e d Conditions 5 year storm Standard Hydrologic Discharge Time of Vo lume Drainage Element Peak Peak (ac Area (cfs) ft ) (sq mi) DAl 223 .92 2 6 Jan 05 1203 16 .321 0.066 60" Pipe 223 .35 26 Jan 05 1204 16 .310 0.0 66 DA2 227.79 26 Jan 0 5 1200 16 .106 0 .050 DAlAP 45 .397 26 Jan 05 1159 2.9893 0 .010 HD Pond (Mo d) 23.061 26 Jan 05 1237 17.435 0 .059 DAlBP 21.422 26 Jan 05 1159 1.4106 0 .005 DA2P 29.580 26 Jan 05 1159 1 .9989 0.006 DA4P 29.444 26 Jan 05 1200 1 .6674 0.009 DA3P 49.876 26 Jan 05 1159 3 .3920 0 .010 Point B 130.30 26 Jan 05 1159 8.4689 0.030 DA4 43.216 26 Jan 05 1159 2 .4555 0.013 Point A 391.69 26 Jan 05 1202 44.669 0.168 Project Start of Run End of Run Execution Time HMS * Summary of Results Gateway Subdivision Run Name PRlOyr Basin Model Met . Model 26Jan05 0000 27Jan05 0000 16Feb05 0951 Control Specs Proposed Conditions 10 year storm Standard Hydrologi c Discharge Time of Volume Drainage Element Peak Peak (ac Area (cfs) ft) (sq mi) DAl 27 8 .44 26 Jan 05 1203 2 0 .2 81 0 .06 6 60" Pipe 277 .92 2 6 Jan 05 12 0 4 20 .26 9 0 .06 6 DA2 272. 23 26 Jan 05 1200 19 .2 7 4 0 .050 DAlAP 54.491 26 Jan 05 1159 3 .6006 0 .010 HD Pond (Mod) 26 .366 26 Jan 05 1239 20 .642 0 .05 9 DAlBP 25 . 714 26 Jan 05 1159 1 .6991 0 .005 DA2P 35.348 26 Jan 05 1159 2 .3920 0 .006 DA4P 38.199 26 Jan 05 1159 2 .1751 0 .009 DA3P 59 .554 26 Jan 05 1159 4.0533 0 .010 Point B 158 .81 26 Jan 05 1159 10.320 0 .030 DA4 55.536 26 Jan 05 1159 3.1765 0.013 Point A 4 86 .20 26 Jan 05 1202 54 .406 0 .168 Proj ect Start of Ru n End of Run E xecution Time HM S * Summary of Results Ga teway Subdivision Run Name PR25yr Basin Model Proposed Conditions Met . Model 26Jan 05 0000 27Ja n 0 5 000 0 16Feb0 5 0951 Cont rol Specs 25 year storm Standard Hydrologic Discharge Ti me of Volum e Drai nag e Element Peak Pea k (ac Area (cfs) ft ) (sq mi ) DAl 34 2 .4 4 26 Jan 0 5 12 0 3 24.976 0 .066 60" Pipe 3 41.88 26 Jan 0 5 1 2 0 4 2 4 .963 0 .0 66 DA2 324 .03 26 Jan 0 5 1200 22. 9 71 0 .0 5 0 DAlAP 65.076 26 Jan 0 5 1159 4 .31 50 0 .010 HD Pond (Mod) 29.610 26 Jan 05 1 242 24.160 0 .059 DAlBP 30.709 26 Jan 05 1159 2.0362 0 .005 DA2P 42.074 26 Jan 05 1159 2 .8508 0.006 DA4P 48. 572 26 Jan 05 1159 2.7864 0 .009 DA3P 70 .841 26 Jan 05 11 59 4 .8250 0 .010 Point B 192.20 26 Jan 05 1159 12 .498 0.030 DA4 70 .030 26 Jan 05 115 9 4. 0410 0.013 Point A 596.11 26 Jan 05 1201 65 .663 0.168 Project Start of Run End of Run Execution Time HMS * Summary of Results Gateway Subdivision Run Name PR50yr Basin Model Proposed Conditions Met . Model 26Jan05 0000 27Jan05 0000 16Feb05 0952 Control Specs 50 year storm Standard Hydr olo g ic Disch a rge Time of Volume Drainage Element P eak Peak (ac Area (cfs) ft) (sq mi) DAl 388 .2 4 26 J an 0 5 12 0 3 28.366 0 .066 6 0 11 Pipe 38 7 .3 0 26 Jan 0 5 1 2 0 4 2 8 .34 9 0.066 DA2 361 .01 26 Jan 05 1 2 00 2 5 .61 2 0.050 DAlAP 72 . 6 2 6 26 Jan 05 1159 4 .8257 0 .0 10 HD P ond (Mod) 31 .70 5 26 Jan 05 1244 26 .587 0 .0 59 DAlB P 3 4. 271 26 Jan 05 1159 2 .2772 0 .00 5 DA2P 4 6 .876 26 Jan 05 1159 3 .1786 0 .00 6 DA4P 56.0 2 0 26 Jan 05 1159 3 .2320 0 .00 9 DA3P 78 .90 2 2 6 Jan 05 1159 5 .3762 0 .0 10 Point B 2 16 .07 2 6 Jan 05 11 59 14 .064 0 .030 DA4 80 .4 07 26 Jan 05 1159 4.6693 0 .013 Point A 67 4.33 26 Jan 05 1201 73 .670 0 .168 Project Start of Run End of Run Execution Time HMS * Summary of Results Gateway Subdivision Run Name PRlOOyr Basin Model Proposed Conditions Met . Model 26Jan05 0000 27Jan05 0000 16Feb05 0952 Control Specs 100 year storm Standard Hydrologic Discharge Time of Volume Drainage Element Peak Peak (ac Area (cfs) ft) (sq mi ) DAl 443.21 26 Jan 05 1203 32.4 61 0 .066 60 " Pipe 442.15 26 Jan 0 5 1204 32.444 0 .066 DA2 405 .38 26 Jan 0 5 1200 28.782 0 .050 DAlAP 81 .674 26 Jan 0 5 1159 5 .4390 0 .010 HD Pond (Mod) 51 .436 26 Jan 05 1230 29.565 0.059 DAlBP 38 .541 26 Jan 05 1159 2 .5666 0 .005 DA2P 52 .636 26 Jan 05 1159 3 . 5720 0.006 DA4 .P 64. 972 26 Jan 05 1159 3.7741 0.009 DA3P 88 .574 2 6 Jan 05 1159 6.0376 0 .010 Point B 244. 72 26 Jan 05 1159 15 .950 0 .030 DA4 92.854 26 Jan 05 1159 5 .4319 0 .013 Point A 768.44 26 Jan 05 1201 83 .391 0 .168 Project Start of Run End of Run Execution Time Computed Results HM S * Summary of Resul t s for Point A Gateway Subdivision 26Jan05 0000 27Jan05 0000 16Feb05 0910 Basin Model Met . Model Control Specs Run Name PRSyr Proposed Conditions 5 year storm Standard Peak Outfl ow Total Outflow 39 1 . 69 (cfs) 4. 97 (in) Date/Time of Peak Outflow 26 Jan 05 1 2 0 2 HMS * Summary of Results for Poin t B Project Start of Run End of Ru n Execution Time Computed Results Gate way Subdivi sion 26Jan0 5 000 0 2 7 J an05 0000 1 6Fe b0 5 0 91 0 Bas in Mo d e l Me t . Model Contro l Specs Ru n Name PR5yr Proposed Co nditions 5 year s torm Standard Peak Outflow Total Outflow 130 .30 (cfs ) 5. 2 7 (in) Date/Time of Pe ak Outflow 26 Jan 05 1159 HMS * Summary of Results for Point A Project Start of Run End of Run Execution Time Computed Results Gateway Subdivision 26J an05 0000 2 7Jan05 0000 16Feb05 0910 Bas in Model Met . Model Control Specs Run Nam e PRlOyr Proposed Conditions 10 year storm Standard Peak Outfl ow Total Outflow 486 .20 (cfs) 6.06 (in) Date/Time of Peak Outf l ow 26 J an 05 120 2 HMS * Summary of Results for Point B Project Start of Run End of Run Execu ti on Time Computed Resul ts Gateway Subdivision 26Jan05 0000 2 7 Jan05 0000 16Feb05 0910 Basin Model Met . Model Control Specs Run Name PRlOyr Proposed Conditions 10 year storm Standard Peak Outflow Total Outflow 158.81 (cfs) 6 .42 (in) Date/Time of Peak Outflow 26 Jan 05 1159 HMS * Summary of Results for Point A Project Start of Run End of Run Execution Time Computed Res ults Gateway Subdivision 26Jan0 5 0000 2 7Jan05 0000 16Feb05 0909 Basin Model Met . Model Con trol Specs Run Name PR25yr Proposed Conditions 25 year storm Standard Peak Outflow Total Outf l ow 596 .11 (cfs ) 7 . 31 (in) Date/Time of Peak Outf l ow 26 J an 05 1 201 HMS * Summary o f Resu l t s for Po in t B Project Start of Run End of Run Execution Time Computed Results Gateway Subdivision 26J an05 0000 27Jan05 0000 16Feb05 0 9 0 9 Basin Model Met . Model Control Specs Run Na me PR25yr Proposed Con ditions 25 year storm Standard Pe ak Ou t fl ow To t a l Outflow 1 92.2 0 (cfs ) 7 . 78 (in) Date/Time of Peak Ou tfl ow 26 Jan 05 1159 HMS * Summary of Results for Point A Project Start of Run End of Run Execution Time Computed Results Gateway Subdivision 26Jan05 0 000 2 7 Jan05 0000 16Feb05 0909 Basin Model Met . Model Control Specs Run Name PR50yr Prop osed Conditions 50 year storm Standard Peak Outfl ow Total Outflow 674.33 (cfs) 8.20 (in) Date/Time of Peak Outf l ow 26 J a n 05 1 2 01 HMS * Summary of Results for Point B Project Start of Run End of Run Execution Time Computed Res ults Gateway Subdivis i o n 26Jan05 0000 27Jan05 0000 16Feb05 0909 Basin Model Met. Mo del Control Specs Run Name PR50yr Proposed Conditions 50 year storm Standard Peak Outfl ow Total Outfl ow 2 16. 0 7 (cfs) 8 . 75 (i n) Date/Time of Peak Outf l o w 2 6 J an 05 11 59 HMS * Summary of Results for Point A Project Start of Run End of Run Execution Time Computed Results Gateway Subdivision 26Jan05 0000 2 7Jan05 0000 16Feb05 0908 Basin Model Met. Model Control Specs Run Name PRlOOyr Proposed Conditions 100 year storm Standard Peak Outflow Total Outfl ow 768.44 (cfs) 9.28 (in) Date/Time of Peak Outflow 26 J an 05 1201 HMS * Summary of Results for Point B Project Start of Run End of Run Execution Time Computed Results Gateway Subdivision 26Jan05 0000 2 7Jan05 0000 16Feb05 0908 Basin Model Met. Model Control Specs Run Name PRlOOyr Proposed Conditions 100 year storm Standard Peak Outflow Total Outflow 244.72 (cfs) 9. 93 (in) Date/Time of Peak Outflow 26 Jan 05 1159 Austin Dall as Hou ston San Antonio Washington , D .C . DRAINAGE REPORT For DWS, Inc. Gateway Subdivision Phase 4 Forrest Drive and University Drive College Station, Texas Prepared by Bury+ Partners -SA , Inc. 10000 San Pedro, Suite 100 San Antonio, Texas 78216 February 2005 I p Bury+ Partners ENGINEERING SOLUTIONS DRAINAGE REPORT For DWS, Inc. Gateway Subdivision Phase 4 Forrest Drive and University Drive College Station, Texas Prepared by Bury+ Partners -SA , Inc . 10000 San Pedro, Suite 100 San Antonio, Texas 78216 "I hereby certify that this report for the drainage design of the Gateway Subdivision , Phases 4 , was prepared under my supervision in accordance with the provisions of the City of College Station Drainage Policy and Design Standards for the owners thereof." Registered Professional Engineer State of Texas No . 93563 February 2005 J:\Dra inage Repo rts \DWS, lnc\367-002\Feb ru ary 2005 \fl ys heet.doc .hs "-----------------BURY PARTNERS---------------~ TABLE OF CONTENTS INTRODUCTION ............................................................................................ 1 METHODOLOGY FOR DETENTION DESIGN ...................................................... 1 EXISTING CONDITIONS ................................................................................ 2-3 PROPOSED CONDITIONS .............................................................................. 3-4 RESULTS .................................................................................................... 4-5 CONCLUSION ............................................................................................... 5 INSPECTION ................................................................................................. 3 EXHIBITS VICINITY MAP ................................................................................. EXHIBIT 1 EXISTING DRAINAGE AREA MAP ....................................................... EXHIBIT 2 PROPOSED DRAINAGE AREA MAP ..................................................... EXHIBIT 3 APPENDICES CITY OF COLLEGE STATION SCS TABLES ........................................ APPE NDIX A SCS EXISTING CONDITIONS ........................................................... APPENDIX B SCS PROPOSED CONDITIONS .......................................................... APPENDIX C L--------------BURY +PARTNERS------------~ INTRODUCTION The Gateway Subdivision Phase 4 is located near the intersection of University Drive and Forest Drive in College Station, Brazos County, Texas. Please see the location map in Exhibit 1. For Phase 4, the development consists of a ±6.625 acres in the western comer of the overall development, as shown on Exhibits 2 and 3 . These Exhibits also show a tributary to Burton Creek that passes through the site. A FEMA Flood Study to determine the limits and elevations of the 100-year floodplain was previously prepared and submitted for approval by Mitchell & Morgan , LLP . The purpose of this drainage report is to analyze the pre-developed and storm water runoff condition and to prove onsite detention will not be required by area DA3P. Instead , a modification to the outfall structure of the regional detention pond built by The Home Depot will reduce the overall runoff generated by the overall development. The detention pond designed for the ±32 acre drainage area 2 (The Home Depot and future retail space) was designed with the construction documents for The Home Depot and was built at the same time. This detention pond was over-designed to account for the ultimate development of the entire area. The calculations in this report will prove that changing the outfall structure of this pond at the same time as developing DA3P, the overall storm water runoff at Point "A " will remain at or below existing conditions . In accordance with the City of College Station Ordinance #1728 , the following narratives, calculations, and exhibits are submitted for your review , comments , and approval for the proposed development . MEIBOOOLOGY FOR DETENTION DESIGN The software package HEC -HMS, by the Hydrologic Engineering Center of the US Corps of Engineers , was used for this detention design. The flow rates are based on the SCS method using a 24 -hour , Type II storm for the City of College Station . The 24-hour rainfall depth, curve number and initial loss are based on the City of College Station criteria. Please see Appendix A for the se variable s. The calculations based on these conditions are shown in the detailed HEC -HMS output and can be examined in the Appendices following this report. 1 '------------------BURY PARTNERS----------------~ EXISTING CONDITIONS The Existing Conditions Area Map (Exhibit 2) shows DA3P to be ±6.625 acres with a CN value of 75. All other drainage areas were accounted as they are now, except DA2, which was assumed as ultimate development. The figures for each drainage area and the peak flow of points A and B are summarized in the following tables. TABLEl Drainage Area CN Tc Lag Area (Ml2) (SCS) (Min) (Min) DAI 0.066407 77 16.7 10.0 DA2 0 .049641 94 12.0 7.2 DA4 0.012625 77 10.0 6 .0 DAlAP 0.009623 91 10 .0 6.0 DAlBP 0 .004841 91 10.0 6.0 DA2P 0 .006159 75 18.2 10 .92 DA3P 0.010352 75 10.0 6 .0 DA4P 0.009075 75 10.0 6 .0 TABLE2 Study 100 Yr 50Yr 25 Yr lOYr 5 Yr Point (cfs) (cfs) (cfs) (cfs) (cfs) A 787.8 690.1 609 .2 493.6 394 .9 B 211.2 183.2 159.9 127.4 99 .8 Since the existing detention pond capacity is to be analyzed with this report, the following computation were used based on the approved drainage/detention report for the Gateway Subdivision Phase 1, dated August 2002 by Bury+ Partners , Inc . As mentioned earlier, the pond was designed and built by The Home Depot as a regional detention pond. It is oversized to detain extra storm water to keep the overall development below existing flow . On the construction documents of The Home Depot , the outfall was designed as 2-36" pipes with an invert of 261.0 feet and was constructed that way. However , due to an oversight, the approved drainage report accounts for only 1-36" pipe. So as not to profit from this oversight, the existing condition in this report assume only 1-3 6" pipe outfalls from the pond . The table below shows the elevation-area-outflow for the pond as approved in the previous report and as used for calculations in this report. . 2 BURY PARTNERS TABLE3 Contour Elevation Area (Acre) Outflow (cfs) Notes 261 0.679522 0 .00 262 1.387420 5 .10 263 1.700367 12 .95 264 2 .013315 17 .61 265 2 .310331 43.14 266 2.607323 58.41 267 2.734619 70 .44 268 2.861915 79.81 269 2 .891736 86.76 Spillway elevation 270 2.921534 255.20 Top of earthen berm PROPOSED CONDITIONS The Proposed Drainage Area Map (Exhibit 3) shows DA3P with a proposed CN value of 96 and DA2P with a proposed CN value of 94. All other drainage areas have the same CN as existing conditions. The figures for each drainage area and the peak flows are summarized in the following tables. TABLE4 Drainage Area CN Tc Lag Area (Ml2) (SCS) (Min) (Min) DAI 0 .066407 77 16 .7 10 .0 DA2 0 .049641 94 12 .0 7 .2 DA4 0 .012625 77 10 .0 6 .0 DAIAP 0 .009623 91 10 .0 6 .0 DA IBP 0.004841 91 10 .0 6 .0 DA2P 0.006159 94 10 .0 6.0 DA3P 0.0 10352 96 10 .0 6 .0 DA4P 0 .009075 75 10 .0 6 .0 TABLES Study 100 Yr 50Yr 25 Yr 10 Yr 5 Yr Point (cfs) (cfs) (cfs) (cfs) (cfs) A 768.4 674.3 596.1 486 .2 391.7 B 244.7 216.1 192 .2 158 .8 130 .3 3 . BURY PARTNERS With the development of drainage area DA3P, the outfall structure of the regional detention pond will be modified. This modification includes closing/plugging one of the 36" pipes, which corresponds to the approved drainage report, and placing a restrictor with a 30" diameter opening into the other 36 " pipe . The size and volume do not have to be changed because the pond was over-designed when it was originally built. Table 6 below shows the new outflows along with the change in outflow of each 1 foot elevation. TABLE6 Contour Elevation Outflow (cfs) Change in Outflow Notes (cfs) 261 0.00 0 .00 262 3.30 -1.80 263 9.66 -3.29 264 13.90 -3.71 265 14.96 -28.18 266 21.76 -36 .65 267 26.22 -44 .22 268 30.02 -49 .79 269 33.40 -53.36 Spillway elevation 270 198.46 -56.74 Top of earthen berm RESULTS The following table identifies the essential results of the detention model. TABLE7 Study Point 100 Yr 50Yr 25 Yr 10 Yr 5 Yr (cfs) (cfs) (cfs) (cfs) (cfs) Existing A 787 .8 690 .1 609.2 493.6 394 .9 Propo sed A 768.4 674.3 596 .1 486 .2 391.7 Net Difference -19.4 -15.8 -13.1 -7.4 -3 .2 Existing B 211.2 183 .2 159 .9 127.4 99.8 Proposed B 244.7 216.1 192.2 158 .8 130 .3 Net Difference +33 .5 +32 .9 +32.3 +31.4 +30 .5 4 '-----------------BURY+ PARTNERS---------------~ Based on the above calculations , Study Point A, which is the most downstream point of interest, shows a net decrease in peak flow for all investigated storm events . Since the existing detention pond was oversized and the outflow was further restricted , full storm detainment in the 5-100 year storms was achieved for DA3P without onsite detention. At Point B, there is a net increase of 32.1 cfs on average. This increase in runoff is due to the increase in the impervious cover on the subject tract. Since no future development can occur in DA4P or between Study Point B and Study Point A , additional detention for the 5-100 year storm events should only be required for increase in runoff generated at Study Point A . CONCLUSION The detention design restricts the post development runoff rates to the pre-development runoff rates and provides more than adequate storage. Therefore, the detention design satisfies the City of College Station Ordinance #1728 and should be approved . 5 EXHIBIT 1 VICINITY MAP !»Bury+ Partners INOINEEl l NO S OLUT I ON S .... ,....,._, ..... ...... II ... N.cat .... raca ..... ..,,ruw, ., •9ClndlM.., MTE: 02/17/0S SCALE: N.T.S. VICINITY MAP N.T.S. COLLEGE ST A TION GATEWAY ESTATES COLLEGE STATION. TEXAS DRAWN BY: VOO EXHIBIT 1 SITE LOCATION MAP PROJECT No .: 367-02 EXHIBIT2 EXISTING DRAINAGE AREA MAP APPENDIX A CITY OF COLLEGE STATION SCS TABLES • Storm Table Itt-3 24 Mo~r Rainfal l Depths for 1Selected Storm Retu rn Periods Return Period, "t " 24 Hour Rainfall Depth, (Ye ars) r (Inches) 2 4,5 5 6.2 10 ·7,4 . 25 8,8 50 9.8 100 11, 0 1 From National Weather Service Isohyetal Charts For Selected Return Periods 25 "P" , /' Table III-4 Curve Numbers and Percent Impervious Area For Various Land Cover and Land Use Category Land Cover: Natur~1 Woodlands Natural Grasslands Landscaped Areas lmperv ious Areas· {Pavements, Rooftops, etc.) Land Uses: Low Density Residential Medium Density Residential High Density Residential Business/Cocmiercial Industrial Percent Impervious r. 0 0 0 100 38 52 65 85 72 Curve Number 75 75 77 98 84 87 91 94 92 1 From "Urban Hydrology For Small Watersheds, Technical Release No. 55" of the Soil Conservation Service 26 \ ·~·~ \ \<[< Tabfo 4•1.-Ia values for runoff curve numbers . . ' . . Curve 1. C\u'.ve I, number. (in) number (in) 40 8.000 10 ().857 41 2.878 11 -0.817 42 2.762 72 -0.778 43 2.651 78 -0.740 44 2.545 74 C.708 ,45 2.444 76 ().667 46 2.848 76 ·C.682 47 2.255 77 (),697 48 2.167. 1a <l.664 49 2.082 '19 0'.682 60 ·2.000 80 0.600 61 1.922 81 0.469 62. 1.846 82 ().439 63 1.774 88 ().410 64 ~704 84 0.881 65 1.636 85. 0.858 66. 1.671 SG Cl'.826 67 L609 S7 0.299. 6.8 1.«8 gs 0.278 .. 69 1.89() S9 0.247 60 1.888 90 0.222 61 1.279 91 0.198 62 U;26 92 0.174 68 L176 98 0.161 64 1.126 9' O.llS 65 LOT1 95 OJ.05. 66 1080 . t6 o.oss .:~ 87 OJ86 tr G.062 GS o.eu 88 O.NI 69 0.899 .. " ,ji APPENDIXB SCS EXISTING CONDITIONS HEC-HMS Project: Gateway Subdivision Basin Model: Existing DA2 DA1AP DA1BP DA2P DA3P Po int B Po int A Project Start of Run End of Run Execution Time HMS * Summary of Results Gateway Subdivision Run Name : EX5yr Basin Model Existing Conditions Met . Model 26Jan05 0000 27Jan05 0000 16Feb05 0949 Control Specs 5 year storm Standar d Hydrologic Discharge Time of Vo lume Drainage Element Peak Peak (ac Area (cfs) ft) (sq mi) DAl 223.92 26 Jan 05 1203 16.321 0 .066 60" Pipe 223 .35 26 Jan 05 1204 16 .310 0 .066 DA2 227.79 26 Jan 0 5 1200 16 .106 0 .050 DAlAP 45.397 26 Jan 05 1159 2.9893 0.010 HD Pond 53 .595 26 Jan 05 1217 18 .401 0.059 DAlBP 22 .838 26 Jan 05 1159 1 .5038 0 .005 DA2P 16 .298 26 Jan 05 1204 1.1296 0 .006 DA4P 29.444 26 Jan 05 1200 1.6674 0 .009 DA3P 33.588 26 Jan 05 1200 1. 9021 0.010 Point 8 99 .831 26 Jan 05 1200 6 .2030 0.030 DA4 43 .216 26 Jan 05 1159 2 .4555 0 .013 Point A 394 .89 26 Jan 05 1202 43.370 0 .169 P roj ect Start of Run End of Run Execution Time HMS * Summary of Results Gateway Subdivision Run Name EXlOyr Basin Model Existing Conditions Met . Model 26Jan05 0000 2 7 Jan05 0000 16Feb05 0949 Control Specs 10 year storm Standard Hydro logic Discharge Time of Vo lume Draina g e Element Peak Peak (ac Area (cfs) f t) (sq mi) DAl 278 .4 4 26 Jan 05 1203 20.2 8 1 0.066 60" Pipe 277 .92 26 Jan 05 1204 20.269 0.066 DA2 272. 23 26 J an 0 5 12 0 0 19 .2 7 4 0 .0 5 0 DAlAP 54 .491 26 Jan 0 5 1159 3.6006 0 .010 HD Pond 62 .206 26 Jan 05 1217 2 2 .049 0 .059 DAlBP 27 .412 26 Jan 05 11 59 1 .8114 0 .005 DA2P 21.198 26 Jan 05 1204 1 .4736 0 .006 DA4P 38.199 26 Jan 05 1159 2 .1751 0 .009 DA3P 43.574 26 Jan 05 1159 2. 4811 0 .010 Point B 127.38 26 Jan 05 1 2 00 7 .9412 0 .030 DA4 55 .536 26 Jan 05 1159 3 .1765 0.013 Point A 493 .60 26 Jan 05 1202 53.435 0.169 Project Start of Run End of Run Execution Time HMS * Summary of Results Gateway Subdivision Run Name EX 25yr Basin Model Met . Model 26Jan05 0000 27Jan05 0000 16Feb05 0950 Control Specs Existing Conditions 25 year storm Standard Hydrologic Discharge Time of Volume Drainage Element Peak Peak (ac Area (cfs) ft ) (sq mi) DAl 342.44 26 Jan 05 1203 24.976 0 .066 60" Pipe 341.88 26 Jan 05 1204 24 .963 0 .066 DA2 324.03 26 Jan 05 12 00 22. 971 0.050 DAlAP 65.076 26 Jan 05 1159 4.315 0 0 .010 HD Pond 70 .805 26 Jan 05 1218 26.306 0 .059 DAlBP 32 .738 26 Jan 05 1159 2.1707 0 .005 DA2P 26.999 26 Jan 05 1204 1 .8880 0.00 6 DA4P 48. 572 26 Jan 05 1159 2.7864 0 .009 DA3P 55.407 26 Jan 05 1159 3.17 85 0.010 Point B 159.86 26 Jan 05 1200 10.024 0 .030 DA4 70.030 26 Jan 05 1159 4 .0410 0.013 Point A 609 .17 26 Jan 05 1202 65.334 0 .169 P roj ect Start of Ru n End of Run Execution Time HMS * Summary of Resu l ts Ga t e way Subdi v is i o n Run Name EX50yr Basin Mo d e l Met . Model 26Jan05 0000 27Jan05 0000 16Feb05 0950 Contro l Specs Exis ting Conditions 50 year storm S tandard Hydrologic Discharge Time of Volume Drainage Element Peak Peak (ac Area (cfs) ft ) (sq mi) DAl 388 .24 26 Jan 05 1203 28.366 0 .06 6 60" Pipe 387 .30 26 Jan 05 12 04 28.349 0 .066 DA2 361.01 26 Jan 05 1200 25 .612 0 .050 DAlAP 72 .626 26 Jan 05 1159 4.8257 0.010 HD Pond 75 .560 26 Jan 05 1219 29.347 0 .059 DAlBP 36 .535 26 Jan 05 1159 2 .4277 0 .005 DA2P 31.168 26 Jan 05 1204 2 .1900 0 .006 DA4P 56 .020 26 Jan 05 1159 3.2320 0 .009 DA3P 63.903 26 Jan 05 1159 3 .6868 0.010 Point B 183 .17 26 Jan 05 1200 11. 537 0 .030 DA4 80.407 26 Jan 05 1159 4.6693 0 .013 Point A 690.13 26 Jan 05 1202 73.902 0.169 Project Start of Run End of Run Execution Time HMS * Summ ary o f Re sults Gateway Subdivision Run Name EXlOOyr Basin Model Met . Model 26Jan05 0000 27Jan05 0000 16Feb05 0950 Control Specs Existing Conditions 1 00 year storm Standard Hydrologi c Dis c harge Time of Volume Drainage Element Peak Peak (ac Area (c fs) ft) (sq mi ) DAl 443.21 26 J an 0 5 1 2 03 32.461 0 .06 6 60 11 Pipe 442.15 2 6 J a n 05 1204 3 2.44 4 0 .066 DA2 405 .38 26 Jan 05 1200 28.782 0.050 DAlAP 81 .674 26 Jan 05 1159 5 .4390 0 .010 HD Pond 80.921 26 Jan 05 1220 32 .994 0 .059 DAlBP 41.088 26 Jan 05 1159 2 .7362 0.005 DA2P 36 .182 26 Jan 05 1204 2.5574 0.006 DA4P 64 .972 26 Jan 05 1159 3.7741 0.009 DA3P 74 .114 26 Jan 05 1159 4.3052 0 .010 Point B 211.1 7 26 Jan 05 1200 13.373 0 .030 DA4 92.854 26 Jan 05 1159 5 .4319 0 .013 Point A 787 .82 26 Jan 05 1202 84.242 0.169 HMS * Summary of Results for Point A Project Start of Run End of Run Execu tion Time Computed Results Gateway Subdivision 26Jan05 0000 2 7Jan0 5 0000 16Feb05 0815 Basin Model Met . Model Control Specs Run Name EX5yr Existing Conditions 5 year storm Standard Peak Outflow Total Outflow 394.89 (cfs ) 4 . 82 (in) Date /Time of Peak Outflow 26 Jan 05 120 2 HMS * Summary of Results for Point B Project Start of Run End of Run Execu tion Time Computed Results Gateway Subdivision 2 6Jan05 0000 2 7Jan0 5 0000 16Feb05 0815 Basin Model Met. Model Control Specs Run Name EX 5yr Exis ting Conditions 5 year s t orm Standard Peak Outflow Total Outflow 99 . 831 (cfs) 3 . 82 (in) Date/Time of Peak Outflow 26 J an 05 1 200 HMS * Summary of Results for Point A Project Start of Run End of Run Execution Time Computed Results Gateway Subdivision 26Jan05 0000 2 7Jan05 0000 16Feb05 0815 Basin Mode l Met . Model Control Specs Run Name EXlOyr Existing Conditions 10 year storm Standard Peak Outflow Total Outflow 609.17 (cfs) 7.26 (in) Date/Time of Peak Outflow 26 Jan 05 1 2 02 HMS * Summ ary of Results for Point B Project Start of Run End of Run Executi on Time Computed Results Gateway Subdivision 26Jan05 0000 2 7Jan05 0000 16Feb05 0815 Basin Model Met . Model Control Specs Run Name EXlOyr Existing Conditions 10 year storm Standard Peak Outflow Total Outflow 12 7 .3 8 (c f s ) 4 .8 9 (in) Date /Time of Peak Outfl ow 2 6 Jan 05 1 2 00 HM S * S umm ary of Re sults for Point A Project Start of Run End of Run Executi on Time Co mputed Resul ts Gateway Subdivi s i on 2 6Jan0 5 0000 27Jan05 0000 16Feb05 0816 Basin Model Met. Model Control Specs Run Na me EX25yr Existing Condi t i o n s 25 year s t o rm S t andar d Peak Outflow Total Outflow 609 .17 (cfs ) 7 .2 6 (in) Date/Time of Peak Outflow 2 6 Jan 05 1 202 HMS * Summary o f Results for Point B Project Start of Run End of Run Execution Time Computed Results Gateway Subdivision 26Jan05 0000 2 7Jan05 0000 16Feb05 0816 Basin Model Met . Model Control Specs Run Name EX25yr Existing Conditions 25 year storm Standard Peak Outfl ow Total Outflow 1 59 .8 6 (cfs ) 6.18 (in) Da t e /Time of Peak Ou tfl ow 26 Jan 05 1200 HM S * Summ ary of Results for P o in t A Pro j ect Start of Run End of Ru n Execu t i on Time Compu ted Resul ts Gateway Subdi vi s i o n 26Jan05 0000 2 7Jan05 0 00 0 16Feb05 0 81 6 Bas in Model Met. Mo d e l Con trol Specs Run Na me EX50yr Existing Conditio ns 5 0 year s t o rm Standard Peak Outfl ow To t a l Outf l ow 690.1 3 (c fs) 8.2 1 (in ) Date /Time of Peak Ou tfl o w 26 J a n 05 1 2 0 2 Project Start of Run End of Run Execution Time Co mputed Resu l ts HMS * Summary of Results for Point B Gateway Subdivision 26Jan05 0000 27Jan05 0000 16Feb05 0816 Basin Model Met. Model Control Specs Run Name EX50yr Existing Conditions 50 year storm Standard Peak Outfl ow Total Outflow 1 83.17 (cfs ) 7 .11 (in) Date/Time o f Peak Outflow 26 J an 0 5 1 2 00 HM S * Summary of Results for Point A Project Start of Run End of Run Exec ution Time Compute d Results Gateway Subdivision 26Jan05 0000 2 7 Jan05 0000 1 6 Feb05 0817 Basin Model Met . Model Control Specs Ru n Name EX l OOyr Existing Conditions 100 year storm Standard Peak Outflow Total Outflow 787 .82 (cfs } 9.36 (in) Date/T i me of Peak Outflow 2 6 Jan 05 1 2 02 HMS * Summary of Results for Point B Project Start of Run End of Run Exec ution Time Computed Results Gateway Subdivision 2 6Jan05 0000 2 7Jan05 0000 16Feb05 0817 Basin Model Met . Model Control Specs Run Name EXlOO yr Exis ting Conditions 100 year storm Standard Peak Outflow Total Outflow 211.17 (cfs) 8.24 (in) Date/Time of Peak Outflow 26 Jan 05 1200 APPENDIXC SCS PROPOSED CONDITIONS HEC-HMS Project: Gateway Subdiv ision Basin Model: Proposed DA1AP DA2P DA4P DA3 P DA4 HD Pond (Mod) Point B DA1 Point A HMS * Summary of Results Project : Gateway Subdivision Run Name PR5yr Start of Run End of Run Execution Time Hydrologic Element DAl 60" Pipe DA2 DAlAP HD Pond (Mod) DAlBP DA2P DA4P DA3P Point B DA4 Point A 26Jan05 0000 2 7Jan05 0000 1 6Feb0 5 0951 Discharge Peak (cfs) 22 3.92 22 3.35 22 7.79 45 .397 23.061 21. 422 29.580 29.444 49.876 130.30 43.216 391.69 26 26 26 26 26 26 26 26 26 26 26 26 Basin Model Met . Model Control Specs Time of Peak Jan 05 1203 Jan 05 1204 Jan 05 1200 Jan 05 1159 Jan 05 1237 Jan 05 1159 Jan 05 1159 Jan 05 1200 Jan 05 1159 Jan 05 1159 Jan 05 1159 Jan 05 1202 Proposed Conditions 5 year storm Standard Volume Drainage (ac Area ft) (sq mi) 16 .321 0 .066 16.310 0 .066 16.106 0 .050 2.9893 0.010 17.435 0.059 1.4106 0 .005 1.9989 0.006 1 .6674 0.009 3 .3920 0.010 8 .4689 0 .030 2.4555 0.013 44 .669 0 .16 8 Project Start of Run End o f Run Execution Time HMS * Summary of Results Gateway Subdivision Run Name PRlOyr Basin Model Proposed Conditions Met . Model 26Jan05 0000 27Jan05 0000 16Feb05 0951 Control Specs 10 year storm Standard Hydrologi c Discharge Time of Volume Drainage Elemen t Peak Peak (ac Area (cfs) ft) (sq mi ) DAl 278.44 26 Jan 05 1203 20.281 0 .066 60" Pipe 277.92 26 Jan 05 1204 20.269 0 .066 DA2 272. 23 26 Jan 05 1200 19 .2 74 0 .050 DAlAP 54 .4 91 26 Jan 05 1159 3 .6006 0 .010 HD Pond (Mod) 26.366 26 Jan 05 1239 20.642 0.059 DAlBP 25 . 714 26 Jan 05 1159 1.6991 0.005 DA2P 35 .348 26 Jan 05 1159 2.392 0 0 .006 DA4P 38 .199 26 Jan 05 1159 2.1751 0 .009 DA3P 59.554 26 Jan 05 1159 4.0533 0 .010 Point B 158 .81 26 Jan 05 1159 10.320 0 .0 30 DA4 55.536 26 Jan 05 1159 3.1765 0 .013 Point A 4 86.20 26 Jan 05 1202 54 .4 06 0.168 Pro j ect S t a r t of Run End of Run Execution Time HM S * Summary of Results Gateway Subdivision Ru n Name PR25yr 2 6Jan0 5 0000 Basin Model Proposed Conditions 2 7Ja n05 0000 Met . Model 16Feb05 0951 Control Specs 25 year storm Standard Hydr ologic Disch arge Time of Vol um e Dr ainage Element Peak Peak (ac Area (c f s) ft ) (sq mi) DAl 3 4 2 .4 4 2 6 J an 05 12 0 3 2 4 .976 0.0 66 60 " Pipe 341. 88 2 6 Jan 05 120 4 2 4.963 0.06 6 DA2 324.0 3 26 Jan 05 1200 22 .971 0 .0 50 DAlAP 65 .07 6 26 J an 05 11 5 9 4.3150 0 .0 10 HD Pond (Mod) 29 .610 26 Jan 0 5 12 4 2 2 4 .1 60 0 .0 59 DAlBP 3 0 .709 26 Jan 0 5 1159 2 .03 6 2 0 .00 5 DA2P 4 2.07 4 26 Jan 05 1159 2 .8508 0 .006 DA4P 4 8 .57 2 26 Jan 0 5 1159 2.7864 0 .00 9 DA3P 7 0 .841 26 Jan 0 5 1159 4 .825 0 0 .0 1 0 Point B 192.2 0 26 Jan 05 1159 12 .49 8 0 .0 3 0 DA4 70.030 26 J a n 0 5 1159 4 .0 4 10 0.013 Poi nt A 596 .11 26 Jan 05 1201 65 .6 6 3 0 .168 Pro j ect Start of Run End of Run Executi on T ime HMS * Summary of Results Gateway Subdivision Run Name PR50yr Bas i n Model Proposed Con ditions Met . Model 26J a n05 0000 2 7Ja n 0 5 0000 16F e b0 5 0952 Control Spec s 50 year storm Standard Hy d r ologic Dis c h a rge Time o f Vo lume Dr aina g e Element Peak Peak (ac Area (cfs ) ft) (sq mi) DAl 3 88 .24 26 Jan 0 5 1203 28 .366 0 .066 6 0 " P i pe 387 .3 0 26 J a n 05 12 0 4 28.349 0 .066 DA2 361 .01 2 6 Jan 05 1 2 00 25.612 0 .0 50 DAlAP 72 . 62 6 26 Jan 0 5 1 1 59 4 .82 57 0 .010 HD Pond (Mo d ) 3 1 .705 26 Jan 05 1244 26 .587 0 .0 59 DAlBP 34 . 271 26 Jan 05 1159 2 .2772 0 .0 05 DA2P 4 6 .876 26 Jan 05 1159 3 .1786 0 .00 6 DA4P 56 .020 26 Jan 05 1159 3 .2320 0.00 9 DA3P 78 .90 2 26 Jan 05 1159 5 .3762 0 .0 10 Point B 2 16.07 26 Jan 05 1159 14 .06 4 0 .0 30 DA4 80 .407 26 Jan 05 1159 4 .6693 0 .01 3 Point A 6 74 .3 3 26 Jan 05 1201 73 .670 0 .168 ·. ,; HMS * Summary of Results Project : Gateway Subdivision Run Name PRlOO yr Start of Run End of Run Execution Time Hydrologic Elemen t DAl 60" P i p e DA2 DAlAP HD Pond (Mod) DAlBP DA2P DA4 .P DA3P Point B DA4 Point A 26Jan05 0000 27 Jan05 0000 16Feb05 0952 Di scharge Peak (cf s) 443.21 442.15 4 05 .3 8 8 1. 67 4 51. 436 38 .541 52.636 64. 972 88 .574 244 .72 92 .854 768 .44 26 26 2 6 2 6 26 26 26 26 26 26 26 26 Basin Model Met . Model Control Specs Time of Peak J an 0 5 1203 J an 0 5 12 0 4 Jan 05 120 0 Jan 05 1159 Jan 05 1230 Jan 05 1159 Jan 05 1159 Jan 05 1159 Jan 05 1159 Jan 05 1159 Jan 05 1159 Jan 05 1201 Proposed Conditions 100 year storm Standard Volume Drainage (ac Area ft) (sq mi) 32.4 61 0 .066 32.4 4 4 0 .066 28 .782 0.050 5.4390 0 .010 29 .565 0 .059 2 .5666 0 .005 3. 572 0 0 .00 6 3 .7741 0.009 6 .0376 0.010 15 .950 0 .030 5.4319 0 .0 13 83 .391 0 .168 HMS * Surrun ary of Res ul ts for P o i n t A Project Start of Run End of Run Execution Time Computed Resul ts Gateway Subdiv ision 26Jan05 0000 27Jan05 0000 16Feb05 0910 Basin Model Met . Model Control Specs Run Name PR5yr Proposed Conditions 5 year storm Standard Peak Outflow To t a l Outflow 391 .6 9 (cfs ) 4. 9 7 (in) Date/Time of Peak Outflow 26 Jan 05 1 2 0 2 HMS * Summary of Results for Point B Project Start of Run End of Run Executi on Time Computed Resu l ts Ga teway Subdivision 26J an05 0000 27Jan05 0000 16Feb05 0910 Basin Model Met. Model Control Specs Run Name PR5yr Proposed Conditions 5 year storm Standard Pea k Outf low To t a l Outfl ow 130 .30 (cfs) 5.2 7 (in) Date/Time of Peak Ou tflow 26 Jan 05 1 159 HMS * Summ a ry of Results f or Point A Project Start of Run End of Ru n Execution Time Computed Resul ts Gateway Subd ivi s i o n 26J an05 0000 2 7 Jan05 0000 16Feb05 091 0 Bas i n Mo d el Met . Model Control Specs Run Name PR l Oyr Proposed Conditions 10 year storm Standard Peak Outflow Total Outfl ow 486 .2 0 (c f s ) 6.06 (in) Date/Time of Peak Ou tflow 26 J an 05 1202 HMS * Summary of Results for Point B Project Start of Run End of Run Execution Time Computed Results Gateway Subdivision 26Jan05 0000 2 7Jan05 0000 16Feb05 0910 Basin Model Met . Model Control Specs Run Name PRlOyr Proposed Conditions 10 year storm Standard Peak Outflow Total Ou tflow 158.81 (cfs) 6. 42 (in) Date/Time of Peak Outflow 26 Jan 05 1159 HMS * Summary of Results for Point A Project Start of Run End of Run Ex e c uti on Time Compu ted Results Gateway Subdivi sion 26Jan05 0000 2 7Jan05 0000 16Feb05 0909 Basin Model Met. Model Control Specs Run Name PR25yr Proposed Conditions 25 year storm Standard Peak Outflow Total Outflow 596.11 (cfs) 7 . 31 (in) Date/Time of Peak Outflow 26 Jan 05 1 2 01 HMS * Summ ary of Resul ts f o r P oin t B Project Start of Ru n End of Run Execution Time Compu ted Res ul ts Gate way Su bdivision 26J a n 05 0000 2 7Ja n 05 0000 1 6 Fe b 05 0909 Basin Model Met . Model Control Specs Run Name PR2 5yr Prop osed Conditions 25 year storm Standard Peak Outflow Total Outflow 192 .2 0 (cfs) 7 . 78 (in) Date /Time of Peak Outflow 26 J a n 05 1159 HMS * Summ ary of Results for Poin t A Pro j ect Start of Run End of Run Execut ion Ti me Co mputed Re sults Gateway Subdivision 2 6Jan05 0000 2 7Jan05 0000 16Feb05 0909 Basin Mo d e l Met . Mo del Control Specs Run Name PR5 0yr Proposed Conditions 50 year storm Sta n dard Peak Outflow To t a l Outflow 6 74 .33 (cfs) 8 .20 (in) Date/Time o f Peak Outflow 26 Jan 05 1 2 01 HMS * Summary of Results for Point B Proj ect Start of Run End of Run Execution Time Computed Results Gateway Subdivision 26Jan05 0000 2 7Jan05 0000 16Feb05 0909 Basin Model Met . Model Control Specs Run Name PR50yr Proposed Conditions 50 year storm Standard Peak Outflow To tal Outfl ow 216.07 (cfs) 8.75 (in) Date/Time of Peak Outfl ow 26 J an 05 1159 HMS * Summary of Results f or Point A Project Start of Run End of Run Execution Time Computed Results Gateway Subdivision 26Jan05 0000 2 7 Jan05 0000 16Feb05 0908 Basin Model Met . Model Control Specs Run Name PRlOOyr Proposed Condi tions 100 year storm Standard Peak Outfl ow Total Ou t flow 7 68.44 (cfs ) 9. 28 (in ) Date/T i me of Peak Outfl ow 26 J a n 05 1 2 01 Pro j ect Start of Run End of Run Execution Ti me Computed Results HM S * Summary of Results for Poi n t B Gateway Subdivi sion 26Jan05 0000 27Jan05 0000 16Feb05 0908 Basin Model Met. Model Control Specs Run Name PRl OO yr Proposed Conditions 100 year storm Standard Peak Outflow Total Outflow 244 .7 2 (c f s ) 9. 93 (in) Da te/Time of Peak Outflow 2 6 Jan 05 1159 KLING ENGINEERING & SURVEYING Consulting Engineers • Land Surveyors 4101 Texas Avenue, Suite A Bryan, Texas 77802 TO: City of College Station Development Services Tel. 979/846-6212 Fax 979/846-8252 DATE: PROJECT NO.: P.O. Box 4234 Bryan, Texas 77805 May 28, ~ee,. ::::iukl~ 18,~ PROJECT NAME: The Gateway Phases 2-4 ATTENTION: Bridgette George WE TRANSMIT: O Under Separate Cover ,/ Enclosed . VIA: OMail ./ Messenger O Federal Express 0 Lone Star Overnight OUPS 0 Special Courier O Picked Up By Your Office NO . REFERENCE: THE FOLLOWING: D Prints 0 Copies 0 Originals 0 Plat 0 Field Notes ./Plans 0 Report 0 Estimate 0 Cut Sheets 0 Computer Printout 0 File 0 Contract 0 Other DESCRIPTION 2 Street & Waterline Plans 1 Development Permit Application 1 Development Permit Application Fee ($200 .00) Creek Crossing FOR: O Your Review & Approval ,/Your Review & Comment 0 Your Review & Distribution 0 Your Review, Revision & Return 0 Your Signature & Return 0 Your File and/or Use 0 As Requested By: 0 Please Acknowledge Receipt of Enclosures 0 Please Return Enclosures To 0 Copies Of This Letter Of Transmittal Sent To: 1 Public Infrastructure Plan Rev & lnsp Fee ($600.00) If Enclosures Are Not As Noted Please Notify Us At Once. Signed: Fred Pain ~