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HomeMy WebLinkAbout54 Comfort Suites 04-24 907 University Dr. E. ~ '1 CERTIFICATION I, Alton G. Rogers, Registered Professional Engineer No.50833, State of Texas, certify that this report for the drainage design for Comfort Suites, Lot 3 E, Block "V", University Park Subdivision -Phase II was prepared by me in accordance with the provisions of the City of College Station Drainage Policy and Design Standards for the owners thereof. Drainage Report -~''"'~ ~~€.OF T~-t ~\ ~~"'.~·······.~u-'''• ~* .· tf J:.*'I. ~.-Ir::.. .;/(fr· .... ?.~ ~ AL TO G . "ROGERS 2 ~ ····················1 ~. -o·· 5 ~·(t ~ f1 "?. • (. ", /!ii !!'J o,;.1. , ~~ I\ "' 'gj,!-_<3'-Alton G. Rogers, P.E. No. 50833 Comfort Suites, Lot 3E, Block "V", University Park Subdivision, Phase II .... Table of Contents Comfort Suites Lot 3E, Block "V", University Park Subdivision -Phase II Proposed Commercial Introduction: ..................................................................................................................... 1 General Location and Description ................................................................................... 1 Primary Drainage Basin Description ................................................................................ ~ Drainage Design Criteria ................................................................................................. 2 Drainage Facility Design .................................................................................................. ~ Conclusion ....................................................................................................................... 4 Exhibits FEMA Flood Insurance Rate Map Excerpt "A" Drainage Area Map -Existing Condition "B-1" Drainage Area Map -Proposed Condition "B-2" Drainage Area Calculations "C" Routing Hydrograph "D" Drainage Report Comfort Suites, Lot 3E , Block "V'', University Park Subdivision, Phase II 11 Storm Drainage Report Comfort Suites ·Lot 3E, Block "V", University Park Subdivision -Phase II Proposed Commercial Introduction: This storm drainage report is intended to cover the necessary drainage infrastructure forthe proposed development site improvements . The parameters used for design and the existing conditions of the on-site area are incorporated to show how the final drainage design will accomplish the desired drainage objectives per the City of College Station Drainage Policy and Design Standards. (DPDS) General Location and Description: The proposed building is located in the northern portion of College Station east of the intersection of University drive and Spring Loop Road. The project site contains one commercial lots located at the northern end of the University Park Subdivision , Phase II. The lot is platted as Lot 3E, Block "V", University Park Subdivision-Phase II, and is zoned C-1 General Commercial. The 2 .00 acre site is previously undeveloped grassland and has an average slope of three (3) percent. The current land cover is considered natural grassland, and the proposed site will contain both landscaped areas and impervious areas. The proposed site is owned by College Station Lodging Partners, LP . The contact for this project is Mr. Victor Patel . The mailing address for College Station Lodging Partners, L.P. is 400 Krohn Court , Irving , Texas 75038. Drainage R ep ort Comfo rt Suites, Lot 3E , Block "V'', U ni v ersi ty Park Subdivisio n, Phase II 1 Primary Drainage Basin Description: The current site drains from the southeast corner to the northwest corner of the lot. Storm water flows on the surface across the grassed field until it approaches the north edge of the tract. The runoff from the undeveloped tract then flows into the rear drive for the Spring Heights Apartments . This drive has an inverted crown to carry the runoff. This runoff then proceeds in the drive until the water is discharged into an unnamed tributary of Burton Creek. The developed site drains to the northwest corner of the tract to a detention pond. The runoff discharged from the detention pond flows into the rear drive for the Spring Heights Apartments. This drive has an inverted crown that slopes to the west. The rear drive then carries the runoff discharged from the detention structure into a tributary of Burton Creek. This tributary is situated in the 100 year flood plain. Based on the City DSPS and the fact that the site is I ocated int he Burton Creek Watershed , Gessner Engineering used the 100 year storm even for the drainage design. No portion of the proposed site is within the 100 year flood plain per the Federal Emergency Management Agency Flood Insurance Rate Map Panel 48041C0142 C. for Brazos County, Texas and Incorporated Areas effective July 2, 1992 (see Exhibit "A"). Drainage Design Criteria: All drainage design is in accordance with the City DSPS. The design rainstorm is the 100 year storm event. Flow calculations for all drainage areas are based on the Modified Rational Method. Storm recurrence intervals used were the 10, 25 , 50 , 100 year interval storm event. The storage volume required for the detention facility is based on calculations Drainage R epo rt Comfort Suites, Lo t 3E, Block "V", U ni versity P ark Subdiv isio n, Phase II 2 - . ' outlined in the C ity DSPS method of subtracting pre-and post-development hydrographs and peak flows computed using the Rational Method for one h undred (100) year design storm event. The site requires 0.2646 ac-ft of storm water sto rage. Drainage Facility Design: The site will be served by a detention facility in the north west corner of the two (2) acre tract. All impervious area created by the buildings and park ing lot will be captured and routed to the detention area. A detention facility measuring 1 02 feet long w ith a height varying between forty-two (42) feet at the west end and twelve ( 12) feet at the east end . The bottom elevation of the detention basin is 302 .0. The top of the detention structure walls is 306 .75 . Runoff enters the structure at the northwest po rtion of the parking area at eleva ti on 306.97. The outlet structure is a four (4) inch PVC pip e. The discharge from the four (4 ) inch PVC outlet pipe does not exceed the Pre -develop ment flow for the site . The estimated discharge for each design storm is provided in attac hed Table . Discharge Versus Head In Detention Fa cility Design Flow Storage Depth (ft) Discharge (cfs) 2 .82 5.18 3.22 5.92 O so 3.64 6.69 0 100 4 .18 6.98 Drainage Report Comfort Suites, Lot 3E , B lock "V", University Park Subdivi si on, Ph ase II 3 The study point for the project is the outfall device of the proposed detention facility which consists of a four (4) inch wide PVC pipe feeding into energy dissipating structures . The detention area outflow elevation is 302.00 feet. The maximum detention pond elevation is 306. 75 feet as determined by the six (6) inch curb cut which is shown on the site plan . The detention area has a storage capacity of 0 .3003 ac-ft. The following summary table shows the Storage Required for the 10, 25, 50 , and 100 year events and the Storage Provided for the site. Study Point -Detention Area Pre-development Post-development Storage Required Storage Provided cf s cf s AC-FT AC-FT 010 5.178 13 .808 0.1961 0.3003 025 5.916 15.776 0 .2241 0.3003 Oso 6 .690 17.840 0.2534 0.3003 0100 6.980 18.620 0 .2646 0.3003 Conclusion: The Storage Required does not exceed the Storage Provided for the 10 , 25 , 50, or 100 year event. In all cases, including the 100 year event, storm water is released into the drainage easement provided directly north of the project. The drainage design for this site D rainage R eport Comfort Suites, Lot 3E , Block "V '', Univer sity Park Subdiv ision, Phase II 4 exceeds the requirements as stated in the City of College Station Drainage Policy and Design Standards. Drainage Report Comfort Suites , Lot 3E, Block "V", University Park Subdivision, Phase II 5 .. Exhibit A 8 NATIONAL FLOOD INSURANCE PROGRA~ FIRM FLOOD INSURANCE RATE MAP BRAZOS COUNTY, TEXAS AND INCORPORATED AREAS PANEL 142 OF 250 "'"""""""'·(SEE MAP INDEX FOR PANELS NOT PRINTED) CONTAINS: COMMUNITY NUMBER PANEL SUFFIX BRYAN. CITY OF 480082 0142 c COLLEGE STATION . CITY OF 480083 0142 c UNINCORPORA TEO AREAS 481195 0142 c ~ !D/vl_ E;-~M tD/~/D:: Notice to User: The MAP NUMBER shown below should be used when placing K1ap orders ; the COMMUNITY NUMBER shown above shoold h used on insurance applications for the subject . commuaity. MAP NUMBER 48041C0142 C EFFECTIVE DATE: JULY 2, 1992 Federal Emergency Management Agency Z< ZONEX • JOINS PANEL 0144 . ' Exhibit B '. Exhibit C '\ ----------------··_:_· ~--:·_----:_·_-:-_ --~-~ ~-------------------·-------------------:l----------lj_~qtq!f ___ _ . z --------··-·-------·----~-!-------------. 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I ---J ---.----.·--_______ . __ 1 _____ , _______ ·:..__ __ , ___ i ___ ; ___ ...._· ___ , __ : __ l_ _______ ·-~---------------------------; __ -------~---·-----------·-·----·-·;···-:--------·-·-·-----__ , ___ ------~--___ !_ -·-·----------· ___ • __ . ______ : __ : ___ ---~·--------~~-;--·------· ----------------'.·--··i--·-----:------1·--·---~---;---:--,-----:·-... ·-:---~--;--·-·---;--~---· --.-~-~---'---·------.... ---......._. __ l __ _ _____ i __________ i ___ ,_. __ ........_ __ , ___ . --____ : __ :------·---=-----;----·-·---:--:-----~:------~--~--:_. __ . __ . ___ .__, __ -------·--;---__ .._ __ ---- ··----~·-·----;----:--:----,-------:--_;_ --1 ---~------·----:-------:---·----'---··----· ---'------:----------·--·----·---------~--------- ·-··----------··---·----:--·-:-----:----··--·.·• -----:-·--·-·-~----___ ; _____ ._. ___ . ___ . _____ --~-~----~----'.---~--:---{--; _ _. __ ; ___ .. -----{ .. -- ' . ---·--·------·---·---. ---------·-----·:----:----------·-· --·;--·--·------·-----~--·-:-----r---:--; ........... -~---·-·-------·------i---: ___ ---~--.--._; ______ -~·------.·--·---: ------·---- ·----·-·'-·· .~.-. _, .. ___ j_ .!---·----~---;----~---~-·--·-· ------.-·---· . ' ____ _;··--·:---·-·'·--· ...... __ -·------------··----- ·------~---:----·---···--·-· . ___ j ___ ·---_____ , ____ ! ___ L_._ --· .----' ·-----·-·----'·-·-·--·----·--___ , ----·--· -- ·.·---~-·----·---'----,-----'.----·-------··-··· ... i :------.-···--·---~----· ·----------!----;--------· --+---·------!----:----" --___ ; ____ -----'.-- ··-__ ! ____ ' _____ : _______ ~ ___ :._ -··--··· -·--______ ; ----____ !. _______ --···-· --·· ---------------~ ---.-----------___________ ; ___ :----------,---~ ____ : __ , __ ; _____ _: ____ : ___ ! _____ --- !_-_-__ :.··_--_-___ L_._·-·_,,;_-_-.·_·-__ -_:_-_-__ ~--: ___ ._!_--__ -_--~_: ______ -_-__ -.. : ____ i -_··.·_··_-·_-;_:_-___ -_.· _____ -,'_-__ -·-i ----·---: ____ : ______ ' ___ ~--:--:--;-~~---,--:-----:------,--··---- . -~ -.·.·-·------~--·~--~----~--:----,i ---' __ :_-4------.·---:--,·---·-----. i \ ______ J .. ··----·-j·-·-·'.-·-·-1-·--:·--···'.--~-----··-·-··-t • I j ; i ; , : : ; ! : 1 • ' ' i • I l ~ ' ! ! ------·-;-···-!---·:---,-·-1-----1-·-;---,--·-·--!-····--·.----.-·---!····--,·1----.--·-j-·-.------· _: ____ ~-----:--i----:-----~----:---------'.-----~--~-:--.i--~---~ _j ___ _; ___ i : : i l ; I I ! ; ! ' 1 · i j . . ···--:·--;------;---~---!·~---·--;-----i-----:--··---i --.---- _ _. . ; i ---·---··-··'-··-!------! ' I . ' ' i . : I i ! ' I : · r ---1--·;--·:---,-. ---,---·-1 --:-----.----:--· ----,-------;-----------i-------;--~---'.·---~--1--:----:---.-· ----·----- . --·-11 ---··:_; ____ ' I -1, ---i . ---, .. ---1·,· -' . ··--.! .J ----'---···-'---···•. ------. I . i j I ! l ·, ---·-------i ·------.-----·----·-·-·---------- ; ! 1 J t: : ·· _·; tr-I , -:···J .J '::i -, , ------·--·--. l i i j ; ' ' - ----' -·· ---------· ··I ---. ·1 .. , . ---, ..• i . -... l,. . . I j i !, i -·-; i -· -N I ()) TABLE 6. CONSTANTS FOR USE IN FORMULA I • b/(tc+d)e \.J1 Based on Weather Bureau (NWS) Technical Paper No. 40 "Rainfall Frequency Atlas of the United States" 2 year 5 year Io year 25 year 50 year lOO year COUNTY e 5 a e 5 a e 5 a e 5 a e 5 a e 6 a Anaerson o.799 62 8.6 o.792 77 8.8· o. 763 78 8.8 0.112 92 8.8 o.744 '93 8.8 o.74o 99 8.6 Andrews 0.812 40 9.8 0.827 57 10.2 0.809 63 10.2 0.793 69 10.2 0.807 84 10.2 0.804 92 9.8 Angelina 0.785 62 8.8 0.762 69 7.6 0.746 73 7.6 0.726 77 7.6 0.727 86 7.6 0.716 90 8.8 Aransas 0.821 73 9.2 0.787 77 8.5 0.753 79 8.5 0.745 88 8.5 0.739 95 8.5 o. 725 98 9.2 Cl) Archer 0.798 49 9.2 0.783 61 8.5 0.794 74 8.5 0.789 86 8.5 0.792 100 8.5 0.784 111 9.2 ::u -Armstrong 0.846 52 10.8 0.819 63 10.4 0.820 75 l0.4 0.835 95 10.4 o.831 105 10.4 0.840 113 10.8 0 Atascosa 0.808 60 9.2 0. 791 74 9.0 0.780 80 9.0 o. 770 90 9.0 0.757 95 9.0 0.761 108 9.2 G> m Austin 0.811 69 8.0 0.781 75 8.1 0.757 79 8.1 0.739 85 8.1 0.733 92 8.1 0. 719 95 8.0- 0 Bailey 0.833 44 9.8 0.848 62 9.0 0.777 55 9.0 0.806 72 9.0 0.819 85 9.0 0.825 101 9.8 < Bandera 0.795 52 8.6 0.770 62 8.2 0.774 72 8.2 0.764 82 8.2 0.765 94 8.2 0.769 105 8.6 V> Bastrop 0.802 62 8.2 o.781 72 8.4 o. 765 77 8.4 o.762 88 8.4 o.748 93 8.4 0.747 103 8.2 -Baylor 0.800 48 9.4 0.780 59 8.8 0.797 75 8.8 0.791 87 8.8 0.801 103 8.8 0.790 112 9.4 NO z Bee 0.815 65 9.8 0.796 78 8.7 0.762 79 8.7 0.760 92 8.7 0.748 97 8.7 0.740 103 9.8 :I: Bell 0.798 56 8.0 0.780 69 8·.5 0.773 77 8.5 0.771 90 · 8.5 0.754 93 8.5 0.751 102 8.0 --< Bexar o. 798 56 8.7 0.784 70 8.7 0.779 79 8.7 0.769 88 8.7 0.756 94 8.7 0.762 107 8.7 °' 0 Blanco o.792 53 8.3 0. 777 65 8.4 o.776 75 8.4 0. 766 85 8.4 o. 758 93 8.4 o.758 104 8.3 ::u > Borden 0.810 43 9.4 0.808 58 10.2 0.802 66 10.2 0.805 80 10.2 0.795 87 10.2 0.794 96 9.4 c: r-Bosque 0.784 51 7.9 0.779 66 8.6 0.772 74 -8.6 0.776 91 8.6 0.765 97 8.6 0.761 104 7.9 C") Bowie 0.768 50 7.7 0.769 64 8.0 0.753 68 8.0 0.743 76 8.0 0.742 83 8.0 0.740 92 7.7 J:: Brazoria 0.796 69 7.8 0.751 70 8.0 0.749 80 8.0 0.730 85 8.0 0. 718 90 8.0 0.696 89 7.8 > Brazos 0.806 Q_S 8.o 0. 785 . 16 . 8~.5 o. 76a: &O a .. 5 o.754 .. 89 8.5 0. 745 98 8.5 o. 730 . 9&: 8.0 z c: Brewster 0.860;. ·50 lo ~.4 0.819 60 9.6 0.833 70 9.6 0.818 78 9.6 0.833 . 91 9.6 0.832 -110 1{) .4 > Briscoe 0.835 50 10.5 0.824 63 10.3 0.815 73 10.3 0.823 89 10.3 0.818 101 10.3 0.832 115 10.5 r- Brooks 0.828 73 9.3 0.797 80 9.1 0.769 82 9.1 0.771 97 9.1 0.746 98 9.1 0.738 99 9.3 Brown o. 775 43 7.7 o. 770 57 7.6 0.763 66 7.6 0.768 80 7.6 0.770 91 7.6 0.763 98 7.7 Burleson 0.805 64 8.o o.784 74 8.4 0.763 79 8.4 0.760 90 8.4 0.743 97 8.4 o.739 98 8.o Burnet o. 791 51 8.1 0.773 64 8.5 0,777 75 8.5 0.769 86 8.5 0.758 94 8.5 0.758 103 8.1 Cal dwe 11 0.800 60 8.2 0.785 72 8.5 0.769 77 8.5 o. 764 88 8.5 . 0.748 92 8.5 0.749 104 8.2 Calhoun 0.810 70 8.9 0.772 73 8.4 0.760 81 8.4 0.745 88 8.4 0.737 95 8.4 0.720 96 8.9 Callahan o. 774 42 8.2 0.767 55 8.1 . 0.776 68 8.1 0. 770 80 8.1 0.783 95 8.1 0.774 100 8.2 Cameron 0.826 74 9.2 o.786 78 8.8 o. 781 90 8.8 0.160 95 8.8 o. 727 93 8.8 o.73o 102 9.2 Camp 0.779 53 8.0 0.782 70 8.8 0.761 74 8.8 0.758 84 8.8 0.743 87 8.8 0.740 94 8.0 Carson 0.852 55 10.6 0.828 65 10.6 0.829 77 10.6 0.842 97 10.6 0.849 113 10.6 0.840 114 10.6 Cass 0.769 50 7.7 0.768 65 8.3 0.750 69 8.3 0.746 78 8.3 0.738 '83 8.3 0.737 91 7.7 Castro 0.842 49 10.4 0.819 56 9.5 0.802 65 9.5 0.827 84 9.5 0.829 95 9.5 0.823 105 10.4 12-85 .. II /,'': // . . 5 .._~...._-'-........................ ~.~ ...... '""""'~~a+'ol"l.l.6o..-,,~-..1'-'"..._..._ .......................................... ~_.___,.5 .t .2 .3 .5 I 2 3 5 10 20 VELOCITY, V C FT I SEC) Figure 5 BRIDGE DIVISION HYDRAULIC MANUAL 2 -24 TABLE 5. RUNOFF COEFFICIENTS FOR RATIONAL FORMULA Type of Drainage Area . -Business: Downtown areas Neighborhood areas Res I d ant I a I : Slrigle-faml ly areas Multl-unlts, detached Multi-units, attached Suburban Apartment dwell Ing areas Industrial: Light areas Heavy areas Parks, cemeteries Playgrounds Rallroad yard areas Unimproved areas Sand or sandy loam sol I, 0-3% Sand or sandy loam sol I, 3-5% Black or loesslal soil, 0-3% Black -or loesslal soil, 3-5% Black or loesslal soll, >5% Deep sand area Steep grassed slopes Lawns:· Sandy soll, flat 2% Sandy soll, average 2-7% Sandy soll, steep, 7% Heavy soll, flat 2% Heavy soll, average 2-7% Heav., soi" I, steep, 7%. Streets: Aspha I tic Concrete Brick Drives and walks Roofs from ASCE, 1960 Runoff Coeff lclent o. 70-0.95 0.50-0.70 0.30-0.50 0.40-0.60 0.60-0.75 0.25-0.40 0.50-0. 70 0.50-0.80 0.60-0.90 o. 10-0.25 0.20-0.40 0.20-0.40 0.10-0.30 0.15-0.20 0.20-0.25 0.18-0.25 0.25-0.30 . 0.10-0.80 0.05-0.15 0.10 0.05-0.10 0.10-0.15 0.15-0.20 0.13-0.17 0.18-0.22 0.25-0.35 0.70-0.95 0.80-0-95 o. 70-0.85 0.75-0.85 0.75-0.95 BRIDGE DIVISION HYDRAULIC MANUAL 2 -I 5 12-85 . -, __ i i -~1..' .) J.. ... ~ .. --· r --·-···· -··· -... ~:-;~~p¢_= -··--. - -... 1·.·-··-t ·J. ;l:.·.--.. 1 _l, .. ~.·.·-·. . : • ;-'_· ---~ ',--~~ ·:··· ·····-·-.-.. -.. ·.··.-~ .. __ -·_···---·-·-·'ff -~---······-···------·- -. J----'·--·-·-I ·----·----'···-""'-.--·---· !_ _____ ;_. ___ ._ ;---·- i I I . 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Worksheet Worksheet for Pressure Pipe Project Engineer: Alton Rogers Rogers Engineering Services FlowMaster v7.0 [7.0005] 37 Brookside Road Waterbury, CT 06708 USA +1 -203-755-1666 Page 1 of 1 Project DesCfiption Worksheet Flow Element Method Solve For Input Data Pressure at 1 Pressure at 2 Elevation at 1 Elevation at 2 Length Pressure Pipe -25 Year Pressure Pipe Manning's Formula Pipe Diameter 1.42 psi 0.00 psi 0 .01 ft 0 .00 ft 1 .00 ft Mannings Coeffic ).010 Discharge 5.92 cfs Results Diameter 4.4 in Head loss 3 .29 ft Energy Grade at 50.42 ft Energy Grade at 47.13 ft Hydraulic Grade ; 3 .29 ft Hydraulic Grade ; 0 .00 ft Flow Area 0 .1 ft2 Wetted Perimete1 1 .16 ft Velocity 55 .07 ft/s Velocity Head 47.13 ft Friction Slope 285337 ft/ft k :\ ... \drainage report\projed1 . fm2 05/12/04 12 :43 :59 PM © Haestad Methods, Inc. Worksheet Worksheet for Pressure Pipe Project Engineer. Alton Rogers Rogers Engineering Services FlowMaster v7 .0 (7 .0005) 37 Brookside Road Waterbury, CT 06708 USA +1-203-755-1666 Page 1 of 1 . " . , . Project Description Worksheet Flow Element Method Solve For Input Data Pressure at 1 Pressure at 2 Elevation at 1 Elevation at 2 Length Pressure Pipe -50 Year Pressure Pipe Manning's Formula Pipe Diameter 1.61 psi 0 .00 psi 0.01 ft 0.00 ft 1 .00 ft Mannings CoefflC J.010 Discharge 6.69 cfs Results Diameter 4.5 in Head loss 3 .71 ft Energy Grade at 58.64 ft Energy Grade at 54.93 ft Hydraulic Grade ; 3 .71 ft Hydraulic Grade ; 0 .00 ft Flow Area 0 .1 tr Wetted Perimete1 1.19 ft Velocity 59.45 ft/s Velocity Head 54.93 ft Friction Slope 712515 ft/ft k:\. .. ldrainage report\project1 .fm2 05/12/04 12:46 :18 PM © Haestad Methods, Inc. Worksheet Worksheet for Pressure Pipe Project Engineer: Alton Rogers Rogers Engineering Services FlowMaster v7 .0 [7 .0005] 37 Brookside Road Waterbury, CT 06708 USA +1-203-755-1666 Page 1of1 ·' Project Description Worksheet Flow Element Method Solve For Input Data Pressure at 1 Pressure at 2 Elevation at 1 Elevation at 2 Length Pressure Pipe -100 Yea1 Pressure Pipe Manning's Formula Pipe Diameter 1 .84 psi 0 .00 psi 0 .01 ft 0.00 ft 1.00 ft Mannings Coeffic ).010 Discharge 6 .98 cfs Results Diameter 4 .5 in Head loss 4 .26 ft Energy Grade at 66.49 ft Energy Grade at 62.23 ft Hydraulic Grade • 4 .26 ft Hydraulic Grade ' 0 .00 ft Flow Area 0 .1 ft• Wetted Perimeter 1 .18 ft Velocity 63.28 ft/s Velocity Head 62.23 ft Friction Slope 261941 ft/ft k :\. .. \drainage report\project1 .fm2 05/12104 12 :47:36 PM <&:> Haestad Methods, Inc. Worksheet Worksheet for Pressure Pipe P roject Engineer: Alton Rogers Rogers Engineering Services FlowMaster v7.0 (7 .0005) 37 Brookside Road Waterbury, CT 06708 USA +1 -203-755-1666 Page 1 of 1 ' ' Exhibit D DISCHARGE Q 100 (cfs) TIME VS. DISCHARGE 30 --i ······----r········· .. T ............ r···-·····-···--·····.. . .. ·····························-···--.·-·----···-·····-i , 28 26 24 22 20 18 16 14 12 10 8 6 4 2 l ··----·-··i·················l·················-···-···········-··········i··· .... ·•· ···········-'-··············-········ ... ., .......... ··~·············.-.! ........... ············+··-·······-·---........ i ..... ·-······-·· I . I l ·········-·-'··-·---L-.... _; ····f-·--···-·-t-·--··r ···········+ --····· .l .. ____ .i. __ .. J ... _. 4 6 8 10 12 14 16 18 20 22 24 TIME t (min) REQUIRED STORAGE= (1/:z)(30 min)(18 .62 cfs) -(1/:z)(30 min)(6.98 cfs) = (1h)(30 min)(60 sec/min)(18 .62 cfs - 6 .98 cfs) = 10,476 cf + 10% = 11,524 cf PROPOSE DETENTION AREA = (1/:z)(15 + 43)(100) = 2,900 sf REQUIRED DEPTH = (11,524 cf I 2,900 sf) = 3 .98 feet deep EXIT ELEVATION = 302 TOP OF STORAGE= 306.97 MINIMUM FREEBOARD = 0 .5 feet :. MINIMUM TOP OF STORAGE FACILITY= 306.50 CERTIFICATION I, Alton G. Rogers, Registered Professional Engineer No.50833, State of Texas, certify that this report for the domestic water design for Comfort Suites, Lot 3E, Block "V", University Park Subdivision -Phase II was prepared by me in accordance with the provisions of the Bryan/College Station Uniform Design Guidelines Domestic Water for the owners thereof. Alton G. Rogers, P.E. No. 50833 Water Report Comfort Suites, Lot 3E , Block "V", University Park Subdivision, Phase II Table of Contents Comfort Suites Lot 3E, Block "V", University Park Subdivision -Phase II Proposed Commercial Introduction: ..................................................................................................................... 1 General Location and Description ................................................................................... 1 Primary System Description ............................................................................................ 2. Domestic Water System Design Criteria ......................................................................... ~ Domestic Water System Design ...................................................................................... ~ Conclusion ....................................................................................................................... 4 Exhibits WaterCAD Model "A" Flow Test Report "B,, Water Report Comfort Suites, Lot 3E, Block "V", University Park Subdivision, Phase II 11 Domestic Water Report Comfort Suites Lot 3E, Block "V", University Park Subdivision -Phase II Proposed Commercial Introduction: This domestic water report is intended to cover the necessary improvements to the domestic water infrastructure for the proposed development site improvements . The parameters used for design and the existing conditions of the on-site area are incorporated to show how the final domestic water design will meet the requirements of the Uniform Design Manual -Domestic Water. The analysis was performed using WaterCAD as developed by Haested Methods. General Location and Description: The proposed building is located in the northern portion of College Station east of the intersection of University Drive and Spring Loop Road. The project site contains one (1) commercial lot located at the northern end of the University Park Subdivision, Phase II. The lot is platted as Lot 3E , Block "V", University Park Subdivision -Phase II, and is zoned C-1 General Commercial. The 2 .00 acre site is previously undeveloped grassland and has an average slope of three (3) percent. The current land cover is considered natural grassland, and the proposed site will conta in both landscaped areas and impervious areas. The proposed site is owned by College Station Lodging Partners , LP . The contact for this project is Mr. Victor Patel. The mailing address for College Station Lodging Partners , L.P . is 400 Krohn Court, Irving , Texas 75038 . Water R eport Comfort Suites, Lot 3E , Block "V ", Universi ty Park Subdiv ision, Phase II 5 Primary System Description: The current tract is served water by the City of College Station via two (2) possible routes. A six (6) inch domestic water line abuts the tract along the east side of the property. The second source of water is associated with the twelve (12) inch water line which extends along the north side of University Drive. There currently is a bond held by the City of College Station from the developer of the University Park Subdivision for the extension of a water line along the common access private road located west of the present State Farm Insurance building. The analysis assumes that a eight (8) inch line will be installed along this private drive to the subject tract to be developed. The Comfort Suites shall be served by an extension of the existing system by a looped line which provides for the peak demand usage at the facility, fire sprinkler system flow and fire hydrants to serve the structure in case of fire . The Mechanical Engineer used the 2000 International Plumbing Code to determine the peak demand for the facility by the Fixture Count method. A total of 704 fixture units are estimated for the Comfort Suites domestic water usage. This is equivalent to a peak water demand of approximately 170 gallons per minute (gpm) based upon Table II of the Bryan/College Station Uniform Design Guidelines for Domestic Water. Gessner Engineering used a 200 gpm peak water demand for the system analysis . Gessner Engineering used the parameters outlined in Appendix B of the 2000 International Fire Code to determine the number of fire hydrants necessary for the site. The proposed structure encloses 46,375 square feet (s.f.) upon all three (3) floors . The type of construction as per the 2000 International Building Code is Type VB. Table B 105.1 W ater R eport Comfort Suites , Lot 3E , Block "V ", University Park Subdivision, Phase II 6 of the 2000 International Fire Code indicates that a building (Type VB construction) with 46,375 s.f. of fire area has a minimum required fire flow of 6,000 gpm for a four (4) hour duration. The City of College Station allows a reduction in the required fire flow of fifty (50) percent when the building is provided with an approved automatic sprinkler system installed in accordance with Section 903.3.1.1 or 903.3.1.2 of the 2000 International Fire Code. Therefore the minimum required fire flow can be reduced to 3000 gpm since an automatic sprinkler system meeting these requirements will be provided. A review of Table C105.1 of the 2000 International Fire Code indicates that the minimum number of fire hydrants required forthe site is three (3). The average spacing between the hydrants shall be no more than 400 feet. The maximum distance from any point on the street (fire lane) to a hydrant is 225 feet. Based upon these guidelines, three (3) fire hydrants were provided for this site. The system was designed to provide a minimum of 1000 gpm to each hydrant concurrently in the event of a fire. In addition, Gessner Engineering provided a 200 gpm demand for the automatic sprinkler system to occur concurrently with the three (3) fire hydrants demand. Water System Design Criteria: All design associated with the domestic water system improvements and with the proposed Comfort Suites is in accordance with the Uniform Design Guidelines for Domestic Water. The domestic water system design is based upon the required demands for normal operation and in the case of fire. The supply lines to the facility are polyvinyl chloride pipe (PVC). The PVC pipe shall be SDR-21, ASTM D2241 pressure class 200 for 3 inch and pressure class 200 DR14 (meeting AWWA C909 standards) for sizes 6 through 12 inches . Water Report Comfort Suites, Lot 3E , Block "V", University Park Subdivision, Phase II 7 Ductile iron fittings shall be used as necessary. All fittings shall be wrapped with eight-m il polywrap and sealed on the edges with an approved tape. The water distribution system proposed for the Comfort Suites was sized using WaterCAD software developed by Haested Methods. The design flow calculations are based upon the following criteria : 1) normal flow of 200 gpm and 2) three (3) fire hydrants with a design flow of 1000 gpm each. The line sizes were chosen for this analysis such that the residual pressure is no less than 20 pounds per square inch (psi) and maximum velocities of not more than twelve ( 12) feet per second (fps) during the fire flow in both the existing and proposed mains. Water System Design: The Comfort Suite site is served water by the City of College Station via two (2) possible routes. A six (6) inch domestic water line abuts the tract along the east side of the property. The second source of water is associated with the twelve (12) inch water line which extends along the north side of University Drive. There currently is a bond held by the City of College Station from the developer of the University Park Subdivision for the extension of a water line along the common access private road located west of the present State Farm Insurance building. The WaterCAD model of the domestic water system is depicted on Figure 1. The attributes of the model are depicted in Tables 1 and 2. The City of College Station provided a static pressure test at fire hydrants B-024 and B-019. The results of that test are attached for your review. The test results indicate that the flow hydrant (B-024) has an estimated flow rate of 1455 gpm with a residual pressure of 84 psi at static hydrant B-019. These values were used to simulate the existing pressure Water Report Comfort Suites , Lot 3E , Block "V", Uni v ersity Park Subdivision, Phase II 8 conditions in the model. The WaterCAD model simulated the proposd demand conditions that could occur at the Comfort Suites. The model indicates that the proposed water system improvements will supply adequate water to the facility even during the high demand situations without significant pressure lose at the site. Water Report Comfort Suites , Lot 3E , Block "V", University Park Subdivision, Phase II 9 Table 1 Pipe Attributes Designation Size (in .) Velocity (fps) Flow(gpm) Description P-1 6 3.80 334 .6 Proposed P-2 6 7.55 665.4 Proposed P-3 6 7 .55 665.4 Proposed P-4 8 10.63 1665.4 Extension by City P-5 12 4 .68 1648.4 Existing 12" WL P-6 6 3.80 334 .6 Proposed P-7 6 6.07 534 .6 Proposed P-8 6 6.07 534.6 Proposed P-9 6 6.07 534 .6 Proposed P-10 6 6.07 534 .6 Proposed P-11 6 6.07 534 .6 Proposed P-12 8 9.79 1534.6 Proposed P-13 8 9.79 1534.6 Proposed P-14 6 10 .50 925 .8 Existing 6" WL P-15 8 5 .91 925.8 Existing 6" WL P-16 6 6.91 608.8 Existing 6" WL P-17 12 1.72 606.8 Existing 12" WL P-18 12 0.01 2.06 Existing 12" WL P-19 12 0.05 16.97 Existing 12" WL P-20 12 0.05 16 .97 Existing 12" WL P-21 6 11 .35 1000 Proposed FH P-22 6 11 .35 1000 Proposed FH P-23 6 11 .35 1000 Proposed FH P-24 6 9.08 200 Domestic Service P-25 6 0.0 0 Fire System P-26 12 0 .05 19.0 Existing 12" WL Water Report Comfort Suites, Lot 3E, Block "V", University Park Subdivision, Phase II 10 • Water Report Comfort Suites, Lot 3E, Block "V", University Park Subdivision, Phase II 11 Table 2 Joint Attributes Designation Elevation (ft.) Demand (gpm) Calculated Hydraulic Pressure (psi) Grade (ft) J-1 297 .0 -484.73 81 .22 J-2 302.0 -486.54 79 .84 J-3 302.5 --483 .60 78 .35 J-4 304 .0 -486.87 79.12 J-5 309.5 -493.12 79 .44 J-6 304.5 -487 .31 79 .10 J -7 305.3 -487 .76 78 .94 J-8 305.0 -490.13 80 .10 J -9 307 .0 -490.98 79 .60 J-10 312.5 -492.29 77 .79 J-11 310.2 -496.87 80.76 J-12 310.1 -499.48 81.93 J-13 312.0 -516.10 88.30 J-14 314.0 -516 .10 87 .44 J-15 313.0 -516.10 87.87 J-16 313.5 -516.10 87.66 J-17 319.8 -516.10 84 .93 J -18 310 .5 -479.99 73 .33 J -19 310 .5 1000 477 .78 72.38 J-20 310.5 1000 487 .30 76 .49 J-21 310.5 1000 486.61 76 .16 J-22 310.5 200 490.98 78 .09 Water Report Comfort Suites, Lot 3E, Block "V", University Park Subdivision, Phase II 12 Conclusion: The proposed domestic water system improvements for the Comfort Suites site exceeds the requirements as stated in the Bryan/College Station Uniform Design Guidelines for Domestic Water. Water Report Comfort Suites, Lot 3E, Block "V", University Park Subdivision, Phase II 13 Exhibit A WaterCAD Model Water Report Comfort Suites, Lot 3E , Block "V'', University Park Subdivision, Phase II 14 Scenario: Base P-15 R-3 J-13 A-----<t---'<c. k :\ ... \water report\projectfinal 5 .wcd Gessner Engineering WaterCAD v6 .5 [6 .5120i] 07/13/04 09:55 :44 AM © Haestad Methods, Inc. 37 Brookside Road Waterbury, CT 06708 USA +1-203-755-1666 Page 1 of 1 Label Elevation Zone Type Base Flow (ft) (gpm) J-1 297 .00 Zone Demand 0 .00 J-2 302.00 Zone Demand 0 .00 J-3 302 .50 Zone Demand 0 .00 J-4 304 .00 Zone Demand 0 .00 J-5 309 .50 Zone Demand 0 .00 J-6 304 .50 Zone Demand 0.00 J-7 305.30 Zone Demand 0.00 J-8 305 .00 Zone Demand 0 .00 J-9 307 .00 Zone Demand 0 .00 J-10 312 .50 Zone Demand 0 .00 J-11 310 .20 Zone Demand 0 .00 J-12 310 .10 Zone Demand 0 .00 J-15 313 .00 Zone Demand 0 .00 J-16 313 .50 Zone Demand 0 .00 J-17 319 .80 Zone Demand 0.00 J-19 310 .50 Zone Demand 1,000.00 J-20 310 .50 Zone Demand 1 ,000.00 J-21 310 .50 Zone Demand 1 ,000 .00 J-18 310 .50 Zone Demand 200.00 J-22 310 .50 Zone Demand 0.00 J-14 314 .00 Zone Demand 0 .00 J-13 312 .00 Zone Demand 0 .00 Fixed Fixed Fixed Fixed Fixed Fixed Fixed Fixed Fixed Fixed Fixed Fixed Fixed Fixed Fixed Fixed Fixed Fixed Fixed Fixed Fixed Fixed Scenario: Base Steady State Analysis Junction Report Pattern Demand Calculated Calculated ~ydraulic Grad (gpm) (ft) 0 .00 484 .73 0 .00 486 .54 0 .00 483 .60 0 .00 486 .87 0 .00 493 .12 0.00 487 .31 0 .00 487 .76 0 .00 490 .13 0 .00 490.98 0 .00 492 .29 0 .00 496 .87 0 .00 499.48 0 .00 516 .10 0 .00 516 .10 0 .00 516 .10 1 ,000 .00 477 .78 1,000.00 487 .30 1,000.00 486 .61 200 .00 479 .99 0 .00 490 .98 0 .00 516 .10 0 .00 516 .10 Pressure i (psi) 81 .22 79 .84 78 .35 79 .12 79.44 79 .10 78 .94 80 .10 79.60 77 .79 80 .76 81 .93 87 .87 87 .66 84 .93 72 .38 76.49 76 .19 73.33 78.09 87 .44 88 .30 k :\ ... \water report\projectfinal 5 .wcd Gessner Engineering WaterCAD v6 .5 [6 .5120i) 07/13/04 09 :53 :55 AM © Haestad Methods, Inc. 37 Brookside Road Waterbury , CT 06708 USA +1 -203-755-1666 Page 1 of 1 Label Length Diameter Material Hazen-Check (ft ) (in) Williams Valve? c P-1 132 .80 6 .0 PVC 150.0 false P-2 103.40 6 .0 PVC 150.0 false P-3 206 .80 6 .0 PVC 150.0 false P-4 556.40 8.0 PVC 150.0 false P-6 230 .90 6 .0 PVC 150.0 false P-7 37 .17 6 .0 PVC 150.0 false P-8 18.64 6 .0 PVC 150.0 false P-9 127.20 6 .0 PVC 150.0 false P-10 36 .70 6 .0 PVC 150.0 false P-11 47 .30 6 .0 PVC 150.0 false P-12 67 .60 8 .0 PVC 150.0 false P-13 63 .40 8 .0 PVC 150.0 false P-20 9 .70 12 .0 PVC 150.0 false P-21 6 .00 6 .0 PVC 150.0 false P-22 6 .00 6 .0 PVC 150.0 false P-23 6 .00 6 .0 PVC 150.0 false P-24 37 .10 3 .0 PVC 150.0 false P-25 60.35 6 .0 PVC 150.0 false P-17 0 .10 12.0 PVC 150.0 false P-5 0 .10 12.0 PVC 150.0 false P-16 655 .00 6 .0 PVC 150.0 false P-26 0.10 12.0 PVC 150.0 false P-18 72 .00 12 .0 PVC 150.0 false P-19 348 .00 12.0 PVC 150.0 false P-14 279 .00 6 .0 PVC 150.0 false P-15 0 .10 8 .0 PVC 150.0 false Scenario: Base Steady State Analysis Pipe Report Minor Contro Pischarg4 pstream Structtli Loss Status (gpm) Hydraulic Grade ~oefficien (ft) 0 .59 Open 334 .59 484.73 0.56 Open -665.41 483 .60 0 .81 Open -665.41 486 .87 1.67 Open ·1,665.41 493 .12 0.35 Open -334.59 484 .73 0 .20 Open -534 .59 486 .54 0 .20 Open -534 .59 487 .31 0 .17 Open -534 .59 487.76 0 .35 Open -534 .59 490 .13 0 .81 Open -534 .59 490 .98 1.67 Open ·1 ,534 .59 492 .29 0.43 Open ·1,534 .59 496 .87 0 .74 Open 16.97 516 .10 2 .74 Open 1,000.00 483 .60 2 .74 Open 1,000 .00 493 .12 2 .67 Open 1 ,000 .00 492 .29 2 .67 Open 200.00 486.54 3.17 Open 0.00 490.98 0 .00 Open 606 .77 516 .10 0 .00 Open 1 ,648.44 516 .10 2 .37 Open -608 .83 499.48 1 .67 Open 19.03 516 .10 0 .70 Open 2 .06 516 .10 0 .74 Open -16.97 516 .10 1.67 Open 925.76 516 .10 0 .00 Open -925.76 516 .10 ~wnstream Structu E'ressure Head loss Hydraulic Grade Pipe Gradie nt (ft) Head loss (ft/1 OOOft ) (ft) 483 .60 1.13 8.49 486 .87 3.26 31 .55 493 .12 6 .25 30 .23 516 .10 22 .98 41 .31 486 .54 1.81 7 .83 487 .31 0 .78 20 .92 487 .76 0.45 23 .97 490 .13 2 .37 18.60 490 .98 0 .85 23 .29 492 .29 1.31 27 .62 496 .87 4 .58 67.77 499 .48 2 .60 41 .08 516 .10 0 .00 0 .01 477.78 5 .82 969 .83 487.30 5.82 969 .83 486.61 5.68 946 .50 479.99 6 .55 176.60 490.98 0 .00 0 .00 516.10 0 .00 0 .61 516.10 0 .00 4 .88 516 .10 16.62 25 .38 516 .10 0.00 0 .61 516 .10 0 .00 0 .00 516 .10 0 .00 0 .00 499.48 16.62 59 .58 516 .10 0 .00 12.21 k:\ ... \water report\projectfinal 5.wcd Gessner Engineering WaterCAD v6 .5 [6 .5120i] 07/13/04 09 :54 :31 AM © Haestad Methods , Inc. 37 Brookside Road Waterbury, CT 06708 USA +1 -203-755-1666 Page 1 of 1 Exhibit B Flow Test Report Water Report Comfort Suites, Lot 3E , Block "V'', University Park Subdivision, Phase II 15 .. WaterisUfe Power is Progress Service is Pride ~ftlI11kj)(![JJ!JJJID · · Comrnvnrtv Own.O 1601 GRAHAM ROAD COLLEGE STATION TEXAS 77845 979-764-3435 Date: 14 JUNE 2004 FLOW TEST REPORT Nozzel size: 2.5 inch Location: 901 UNIVERSITY DRIVE E Flow hydrant number: B-024 Pitot reading: 75 (GPM): 1455 Static hydrant number: B-019 Static PSI: 85 Residual PSI: 84 April 26 , 2005 Ms . Carol Cotter Graduate Civil Engineer City of College Station Development Services 1101 Texas Avenue South, PO Box 9960 College Station , Texas 77842 Re : Water Meter Size Change Comfort Suites -04-00500134 College Station , Texas Job No.: 03-0100 Dear Ms. Cotter: 1:P o+dl\-6 ' \ a''\ C\',3()a~ G Gessner Eng i neering was contacted by Southwest Lodging , Inc. in regards to reducing the water meter for the project from a three (3) inch meter to a two (2) inch meter. The reason for this request is to possibly eliminate the meter vault for the project. Gessner Engineering understands that the City of College Station typically installs Badger water meters to record the water usage of their customers . The projected water demand for the proposed structure is 170 gpm. This water demand is based upon a 704 fixture unit demand furnished by the mechanical engineer for the project. As you will note in the water report for the project, Gessner Engineering identified the water demand for the facilities as 170 gpm and analyzed the facilities for a 200 gpm demand . Gessner Engineering confirmed with the mechanical engineer, Mr. Jim Dallis , P.E ., on April 12, 2005 that the assumed water demands are still valid . Attached for your review are the manufacturer's specifications for the two (2) inch and three (3) inch water meters . The normal operating range for the two (2) inch water meters is four (4) to 160 gallons per minute (gpm). The maximum intermittent flow is 200 gpm. The normal operating range for the three (3) inch water meters is five (5) to 350 gallons per minute (gpm). The maximum intermittent flow is 450 gpm. I also contacted Badger with regards to this project flow parameters. Badger indicated the actual maximum flow through the two (2) inch water meter is between 200 and 250 gpm . The actual flow rate is a function of supply line capacity and pressure. Neither of these parameters should be a problem with the system improvements made in conjunction with the construction of the Comfort Suites. Since the maximum capacity for the design flow for a two (2) inch water meter is more than adequate, Gessner Engineering has approved the request by Southwest Lodgings, Inc . pending the City of College Station concurrence . 1712 Southwest Parkway, Suite #105, Co ll ege Station, Texas 778 4 0 •P.O . Box 10763, 778 42-0763 • 979.680.8840 •FAX 979.680.8841 1400 South Austin Street, Brenham, Texas 77833 • 979.836.6855 •FAX 979.836.6847 www.GessnerEngin eering.com Gessner Engineering appreciates your consideration of this request to reduce the size of the water meter from a three (3) inch to a two (2) inch Badger meter and the elimination of the meter vault at the Comfort Suites project. If you have any questions, please do not hesitate to contact me. Sincerely, Gessner Engineering -------- Main Sliderule Menu -Industrial Page 1of1 ~ Click on Product, then Click on Size PRODUCT SIZE Recordall Disc Recordall Turbo Series RCDL Compound Series Magnetoflow Mag Meters Back http://www.badgermeter.com/ sliderule/menu2 .html 4113 /2005 Main Sliderule Menu -Industrial Page 1of1 ~ , Click on Product, then Click on Size PRODUCT SIZE Recordall Disc Recordall Turbo Serles RCDL Compound Series Magnetoflow Mag Meters Back http://www . badgermeter .com/ sliderule/menu2 .html 4/13/2005 Main Sliderule Menu -Industrial Page 1of1 • · Click on Product, then Click on Size PRODUCT SIZE Recordall Disc Recordall Turbo Series RCDL Compound Series Magnetoflow Mag Meters Back http://www. badgermeter .com/ sliderule/menu2 .html 4/13 /2005 CERT IFICATION I, Alton G . Rogers , Reg istered Professional Engineer No.50833 , State of Texas , certify that this report for the domestic water design for Comfort Suites , Lot 3E , Block "V ", University Park Subdivision -Phase II was prepared by me in accordance with the provisions of the Bryan/College Station Uniform Design Guidelines D~aterforthe ,,,:;--:.~E. OF-,;~\'\\ Jll!' ~~~·······1"1;' ' owners thereof. ~*··· * · .. *'I, Water R eport l .. : ............. :~t.~ ~ .. ~~ :~!': ?.·.~~~:~: .. 1 -:£--1-----«a ~·. < soa33 :9: K A\o~. 'c "-Q··~<v«t ~ • \ ~&···~!"l.~·· ~ ;-\~~'ONAL E.~~ ·~~,~-Alton G . Rogers, P.E. No . 50833 Comfort Suites , Lot 3E , Block "V ", U ni ve rsity Park Subdi vision , Ph ase II Table of Contents Comfort Suites Lot 3E, Block "V ", University Park Subdivision -Phase II Proposed Commercial Introduction : ..................................................................................................................... 1 General Location and Description ................................................................................... 1 Primary System Description ............................................................................................ ~ Domestic Water System Design Criteria ......................................................................... ~ Domestic Water System Design ...................................................................................... ~ Conclusion ....................................................................................................................... 4 Exhibits WaterCAD Model "A " Flow Test Report "B" Water Report Comfort Suites, Lot 3E, Block "V'', University Park Subdivision, Phase II 11 Introduction: Domestic Water Report Comfort Suites Lot 3E, Block "V", University Park Subdivision -Phase II Proposed Commercial This domestic water report is intended to cover the necessary improvements to the domestic water infrastructure for the proposed development site improvements . The parameters used for design and the existing conditions of the on-site area are incorporated to show how the final domestic water design will meet the requirements of the Uniform Design Manual -Domestic Water. The analysis was performed using WaterCAO as developed by Haested Methods . General Location and Description: The proposed building is located in the northern portion of College Station east of the intersection of University Drive and Spring Loop Road . The project site contains one (1) commercial lot located at the northern end of the University Park Subdivision , Phase II. The lot is platted as Lot 3E , Block "V ", University Park Subdivision -Phase II, and is zoned C-1 General Commercial. The 2 .00 acre site is previously undeveloped grassland and has an average slope of three (3) percent. The current land cover is considered natural grassland , and the proposed site will contain both landscaped areas and impervious areas. The proposed site is owned by College Station Lodging Partners, LP . The contact for this project is Mr. Victor Patel. The mailing address for College Stat ion Lodg ing Partners , L.P . is 400 Krohn Court , Irving , Texas 75038. Water R eport Comfort Suites, Lot 3E , Block "V'', University Park Subdivision, Phase II 5 Primary System Description: The current tract is served water by the City of College Station via two (2 ) possible routes . A six (6) inch domestic water line abuts the tract along the east side of the property. The second source of water is associated with the twelve (12) inch water line which extends along the north side of University Drive. There currently is a bond held by the City of College Station from the developer of the University Park Subdivision for the extension of a water line along the common access private road located west of the present State Farm Insurance building. The analysis assumes that a twelve (12) inch line will be installed along this private drive to the subject tract to be developed . The Comfort Suites shall be served by an extension of the existing system by a looped line which provides for the peak demand usage at the facility, fire sprinkler system flow and fire hydrants to serve the structure in case of fire. The Mechanical Engineer used the 2000 International Plumbing Code to determine the peak demand for the facility by the Fixture Count method. A total of 704 fixture units are estimated for the Comfort Suites domestic water usage . This is equivalent to a peak water demand of approximately 170 gallons per minute (gpm) based upon Table II of the Bryan/College Station Uniform Design Guidelines for Domestic Water. Gessner Engineering used a 200 gpm peak water demand for the system analysis . Gessner Engineering used the parameters outlined i n Append ix B of the 2000 International Fire Code to determine the number of fire hydrants necessary for the site. The proposed structure encloses 46 ,375 square feet (s.f.) upon all three (3) floors . The type of construct ion as per the 2000 International Building Code is Type VB. Tab le B 105 .1 Water R eport Comfort S u ites , Lot 3E, Bl ock "V", University Park Su bdiv is ion , Phase II 6 of the 2000 International Fire Code indicates that a building (Type VB construction) with 46,375 s.f. of fire area has a minimum required fire flow of 6 ,000 gpm for a four (4) hour duration . The City of College Station allows a reduct ion in the required fire flow of fifty (50) percent when the building is provided with an approved automatic sprinkler system installed in accordance with Section 903.3 .1.1 or 903.3.1.2 of the 2000 International Fire Code. Therefore the minimum required fire flow can be reduced to 3000 gpm since an automatic sprinkler system meeting these requirements will be provided. A review of Table C105 .1 of the 2000 International Fire Code indicates that the minimum number of fire hydrants required forthe site is three (3). The average spacing between the hydrants shall be no more than 400 feet. The maximum distance from any point on the street (fire lane) to a hydrant is 225 feet. B ased upon these guidelines, three ( 3) fire hydrants were provided for this site. The system was designed to provide a minimum of 1000 gpm to each hydrant concurrently in the event of a fire. In addition, Gessner Engineering provided a 500 gpm demand for the automatic sprinkler system to occur concurrently with the three (3) fire hydrants demand . Water System Design Criteria: All design associated with the domestic water system improvements and with the proposed Comfort Suites is in accordance w ith the Uniform Design Guidelines for Domestic Water. The domestic water system design is based upon the required demands for normal operat ion and in the case of fire . The supply lines to the facility are polyvinyl chloride pipe (PVC). The PVC pipe shall be SDR-21 , ASTM D2241 pressure class 200 for 3 inch and pressure class 200 DR14 (meeting AWWA C909 standards) for sizes 6 through 12 inches . Water Report Comfort Su ites, Lot 3E , Block "V", University Park Sub div isi on, Phase II 7 Ductile iron fittings shall be used as necessary. All fittings shall be wrapped with e ight-mil polywrap and sealed on the edges with an approved tape. The water distribution system proposed for the Comfort Suites was sized using WaterCAD software developed by Haested Methods . The design flow calculations are based upon the following criteria: 1) normal flow of 200 gpm , 2) fire sprinkler demand of 500 gpm , and 3) three (3) fire hydrants with a design flow of 1000 gpm each. The line sizes were chosen for this analysis such that the residual pressure is no less than 20 pounds per square inch (psi) and maximum velocities of not more than twelve (12) feet per second (fps) during the fire flow in both the existing and proposed mains . Water System Design: The Comfort Suite site is served water by the City of College Station via two (2) possible routes. A six (6) inch domestic water line abuts the tract along the east side of the property . The second source of water is associated with the twelve (12) inch water line which extends along the north side of University Drive . There currently is a bond held by the City of College Station from the developer of the University Park Subdivision for the extens ion of a water line along the common access private road located west of the present State Farm Insurance building . The WaterCAD model of the domestic water system is depicted on Figu re 1. The attributes of the model are depicted in Tables 1and2. The City of College Station provided a static pressure test at fire hydrants B-024 and B-019 . The results of that test are attached for your review. The test results indicate that the flow hydrant (B -024) has an estimated flow rate of 1455 gpm w ith a residual pressure of 84 psi at stat ic hydrant B-019. These values were used to simulate the existing pressure Water Report Comfort Suites , Lot 3E, Block "V", University Park Subdivis ion, Phase II 8 cond it ions in the model. The WaterCAD model simulated the proposd demand conditions that could occur at the Comfort Suites. The model indicates that the proposed water system improvements will supply adequate water to the fac ility even during the high demand situat ions without significant pressure lose at the site . Water Report Comfort Sui tes , Lot 3E , Block "V", University Park Subdivis ion, Phase II 9 Table 1 Pipe Attributes Designation Si ze (in .) Ve locity (fps) Fl ow (gpm) Description P-1 6 2 .16 190.5 P-2 8 7 .60 1190.5 P-3 8 7.60 1190.5 P-4 12 8 .95 3154.5 Extension P-5 12 ---- P-6 6 2.16 190 .5 P-7 6 0 .11 9 .5 P-8 6 0 .11 9.5 P-9 6 0 .11 9.5 P-10 6 0 .11 9.5 P-11 6 5 .78 509 .5 P-12 8 9 .63 1509.5 P-13 8 6 .15 963 .9 P-1 4 6 6.19 545 .5 P-15 6 ----FH-025 P-16 6 6.19 545 .5 P-17 6 6 .19 545 .5 P-18 12 1 .55 545 .5 P-19 12 8.95 3154.46 P-20 12 10.50 3700.0 FH-024 P-2 1 6 11 .35 1000 Proposed FH P-2 2 6 11 .35 1000 Proposed FH P-23 6 11 .3 5 1000 Proposed FH P-24 6 9.08 200 Service P-25 6 5 .6 7 500 Fire System Water R eport Comfort Suites, Lot 3E , Block "V'', University Park Subdivision, Ph ase II 10 Table 2 Joint Attributes Designation Elevation (ft.) Demand (gpm) Ca lcul ated Hyd rau lic Pressure (psi) Grade (ft) J-1 297 .0 --496 .23 86.20 J-2 302.0 --495.60 83.76 J-3 302.5 --496 .63 83 .99 J-4 304.0 --499 .13 84.42 J-5 309.5 --503 .86 84.09 J-6 304 .5 --495 .60 82 .68 J-7 305.3 --495 .60 82 .33 J-8 305.0 --495 .60 82.46 J-9 307.0 --495 .60 81.60 J-10 312 .5 --496 .79 79.74 J-11 310 .2 --501 .23 82 .65 J-12 310 .1 --502.66 83 .31 J-13 314.0 --502 .66 81 .63 J-14 312 .0 --507 .66 84.65 J-15 313 .0 --515.72 87.71 J-16 313.5 --515 .02 87.19 J-17 306.0 --515.02 90.43 J-18 319.8 --516 .10 84 .93 J-19 310.5 1000 490 .81 78.01 J-20 310 .5 1000 498.04 81.14 J-21 310.5 1000 491 .12 78 .14 J-22 310.5 200 4 89 .05 77.25 J-23 310 .5 500 493 .07 78 .99 Water Report Comfort Suites , Lot 3E , Block "V", University Park Subdivision, Phase II 11 Conclusion: The proposed domestic water system improvements for the Comfort Suites site exceeds the requirements as stated in the Bryan/College Station Uniform Design Guidelines for Domestic Water. Water Report Comfort Suit es, Lot 3E , B lock "V", University Park Subdivision, Phase II 12 Exhibit A WaterCAD Model Water Report Comfort Suites , Lot 3E , Block "V ", University Park Subdivision, Phase II 13 J-17 Scenario: Base J-7 P-9 J-8 J-1 P-6 J-2 P-7 Q.'P )!.----~---· e ----z7-~---~c.____.. P-25 l ~ T"" l ~ J-6 J-23• I ri ·~-21 Q_ J-9 J-~ t ~ J- 1:-3 ~Jl ~-5 J-4 P-5 P-13 R-1 iJ N 0 J-16 J-18 J-10 J-1 P-18 J-13 i J-15 k :\ ... \water report\projectfinal.wcd Gessner Engineering WaterCAD v6.5 [6 .5120i) 06/16/04 09 :55 :17 AM © Haestad Methods, Inc. 37 Brookside Road Waterbury , CT 06708 USA +1 -203-755-1666 Page 1of1 Label Elevation Zone Type Base Flow (ft) (gpm) J-1 297 .00 Zone Demand 0 .00 J-2 302 .00 Zone Demand 0 .00 J-3 302 .5 0 Zone Demand 0 .00 J-4 304 .00 Zone Demand 0 .00 J-5 309 .50 Zone Demand 0 .00 J-6 304 .50 Zone Demand 0 .00 J-7 305 .30 Zone Demand 0 .00 J-8 305 .00 Zone Demand 0 .00 J-9 307 .00 Zone Demand 0 .00 J-10 312 .50 Zone Demand 0 .00 J-11 310 .20 Zone Demand 0 .00 J-12 310 .10 Zone Demand 0 .00 J-13 314 .00 Zone Demand 0 .00 J-14 312 .00 Zone Demand 0 .00 J-15 313 .00 Zone Demand 0 .00 J-16 313 .50 Zone Demand 0 .00 J-17 306 .00 Zone De mand 0 .00 J-18 319 .80 Zone Dem and 0 .00 J-19 310 .50 Zone Dem and 1,000 .00 J-20 310 .50 Zone Demand 1,000.00 J-21 310 .50 Zone Demand 1,000 .00 J-22 310 .50 Zone Dem and 200.00 J-23 310 .50 Zone Demand 500.00 k :\ ... \water report\projectfinal. wed Fixed Fixed Fixed Fixed Fixed Fixed Fixed Fixed Fixed Fixed Fixed Fixed Fixed Fixed Fixed Fixed Fixed Fixed Fixed Fixed Fi xed Fixed Fi xed Scenario: Base Steady State Analysis Junction Report Pattern Demand Calculated Calculated rlydraulic Grad (gpm) (ft) 0 .00 496.23 0 .00 495.60 0 .00 496.63 0 .00 499.13 0 .00 503.86 0 .00 495.60 0.00 495.60 0 .00 495.60 0 .00 495.60 0 .00 496.79 0 .00 501 .23 0 .00 502 .66 0 .00 502 .66 0 .00 507 .66 0 .00 515.72 0 .00 515.02 0.00 515 .02 0 .00 516 .10 1 ,000 .00 490 .81 1 ,000.00 498 .04 1 ,000.00 491.12 200 .00 489 .05 500 .00 4 93 .07 Gessner Engineering Pressure ~ (psi) 86 .20 83 .76 83 .99 84.42 84.09 82 .68 82 .33 82.46 81 .60 79 .74 82 .65 83 .31 81 .63 84 .65 87 .71 87 .19 90.43 84 .93 78 .01 81 .14 7 8 .14 77 .25 78 .99 WaterCAD v6 .5 [6 .5120i) 06/16/04 11: 18:55 AM © Haestad Methods , Inc. 37 Brookside Road Waterbury, CT 06708 USA +1-203-755-1666 Page 1 of 1 Label Length Dia mete Material Hazen-Check (ft) (in) Williams Valve? c P-1 132 .80 6 .0 PVC 150.0 false P-2 103.40 8 .0 PVC 150.0 false P-3 206 .80 8 .0 PVC 150.0 false P-4 556.40 12 .0 PVC 150.0 false P-5 500 .00 12 .0 PVC 150.0 false P-6 230 .90 6 .0 PVC 150.0 false P-7 37 .17 6 .0 PVC 150.0 false P-8 18 .64 6 .0 PVC 150.0 false P-9 127.20 6 .0 PVC 150.0 false P-10 36 .70 6 .0 PVC 150.0 false P-11 47 .30 6 .0 PVC 150.0 false P-12 67.60 8.0 PVC 150.0 false P-13 172.50 8.0 PVC 150.0 false P-14 63.40 6 .0 PVC 150.0 false P-15 14.60 6 .0 PVC 150 .0 false P-16 270 .00 6 .0 PVC 150.0 false P-17 434 .80 6 .0 PVC 150.0 false P-18 600 .00 12.0 PVC 150.0 false P-19 9.70 12 .0 PVC 150.0 false P-20 0 .10 12.0 PVC 150.0 false P-21 6 .00 6.0 PVC 150.0 false P-22 6.00 6.0 PVC 150.0 fa lse P-23 6 .00 6 .0 PVC 150.0 false P-24 37.10 3 .0 PVC 150.0 false P-25 60.35 6 .0 PVC 150.0 false Scenario: Base Steady State Analysis Pipe Report Minor Control Pischarglli •pstream StructLli Loss Status (gpm) Hydraulic Grade ~oefficien (ft) 0 .59 Open -190.53 496 .23 0 .56 Open ·1 , 190.53 496 .63 0 .81 Open ·1 , 190 .53 499.13 1.67 Open ·3 , 154.46 503.86 0 .00 Open 0 .00 515 .02 0 .35 Open 190.53 496 .23 0 .20 Open -9.47 495 .60 0 .20 Open -9.47 495 .60 0 .17 Open -9.47 495 .60 0 .35 Open -9.47 495 .60 0 .81 Open -509.47 495 .60 1.67 Open ·1,509.47 496 .79 0 .63 Open -963 .93 501 .23 0.43 Open -545 .54 501 .23 0 .00 Open 0 .00 502 .66 0 .00 Open -545.54 502 .66 0 .00 Open -545 .54 507 .66 0 .00 Open -545.54 515 .72 0 .74 Open 3 , 154.46 516 .10 0 .00 Open 3 ,700.00 516 .10 2 .74 Open 1,000 .00 496 .6 3 2 .74 Open 1,000 .00 503 .86 2 .67 Open 1 ,000.00 496 .79 2 .67 Open 200 .00 495 .60 3 .17 Open 500 .00 495 .60 ~wnstream Structu E'ressure Head loss Hydraulic Grade Pipe Gradient (ft) Headlosi (ft/1 OOOft) (ft) 496.63 0 .39 2 .96 499.13 2 .50 24 .21 503 .86 4.73 22 .87 515 .02 11 .16 20 .06 515 .02 0 .00 0 .00 495.60 0 .63 2 .75 495.60 0 .00 0 .01 495.60 0 .00 0 .01 495.60 0 .00 0 .01 495.60 0 .00 0 .01 496.79 1 .19 25.21 501.23 4.44 65 .65 503.86 2.63 15 .24 502.66 1.43 22 .56 502.66 0.00 0 .00 507 .66 5.00 18 .52 515 .72 8 .05 18 .52 516 .10 0.38 0.63 515.02 1 .08 111 .17 516 .10 0 .00 21 .97 490.81 5.82 969.83 498 .04 5 .82 969 .83 491 .12 5 .68 946.51 489.05 6.55 176 .60 493.07 2 .54 42 .01 k:\ ... \water report\projectfinal.wcd Gessner Engineering WaterCAD v6.5 [6.51201) 06/16/04 09 :55 :52 AM © Haestad Methods , Inc. 37 Brookside Road Waterbury, CT 06708 USA +1-203-755-1666 Page 1 of 1 Label Elevation Zone Inflow Calculated (ft) (gpm) I Hydraulic Gradi (ft) R-1 516.10 Zone 3 ,700.00 516.10 k :\ ... \water report\projectfinal . wed 06/16/04 09:56 :04 AM © Haestad Methods. Inc. Scenario: Base Steady State Analysis Reservoir Report Gessner Engineering 37 Brookside Road Waterbury, CT 06708 USA WaterCAO v6 .5 [6 .5120i] +1 -203-755-1666 Page 1 of 1 Exhibit B Flow Test Report Water Report Comfort Suites, Lot 3E , Block "V", University Park Subdivision, Phase II 14 ' Water is life Power is Progress , Service is Pride 1601 GRAHAM ROAD COLLEGE STATION TEXAS 77845 979-764-3435 Date: 14 JUNE 2004 FLOW TEST REPORT Nozzel size: 2.5 inch Location: 901 UNIVERSITY DRIVE E Flow hydrant number: B-024 Pitot reading: 75 (GPM): 1455 Static hydrant number: B-019 Static PSI: 85 Residual PSI : 84 ~-~ DEVELOPMENT PERMIT PERMIT NO . 04-24A Project: Comfort Suites (University) COlllGl STATION FOR AREAS OUTSIDE THE SPECIAL FLOOD HAZARD AREA RE: CHAPTER 13 OF THE COLLEGE STATION CITY CODE SITE LEGAL DESCRIPTION: University Park, Phase II Block V Lot 3E DATE OF ISSUE: 12/20/04 OWNER: C.S. Lodging Partners c/o Victor Patel 400 Krohn Irving, Texas 75038 SITE ADDRESS: 907 University Drive DRAINAGE BASIN: Burton Creek VALID FOR 12 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 . TCEQ PHASE II RULES IN EFFECT . 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 facil ities . I hereby grant this permit for development of an area outside 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 appl ication for the above named project and all of the codes and ordinances of the City of College Station that apply . (Z-U>-lJf ntative Date 12-2 /-0 4 Date ~-'1 DEVELOPMENT PERMIT PERMIT NO. 04-24A Project: Comfort Suites (University) COLLlGl STATION FOR AREAS OUTSIDE THE SPECIAL FLOOD HAZARD AREA RE: CHAPTER 13 OF THE COLLEGE STATION CITY CODE SITE LEGAL DESCRIPTION: University Park, Phase 11 Block V Lot 3E DATE OF ISSUE: 09/10/04 OWNER: C.S. Lodging Partners c/o Victor Patel 400 Krohn Irving, Texas 75038 SITE ADDRESS: 907 University Drive DRAINAGE BASIN: Burton Creek VALID FOR 3 MONTHS CONTRACTOR: TYPE OF DEVELOPMENT: Clearing and Grading 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 . TCEQ PHASE II RULES IN EFFECT . 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 permit for development of an area outside 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. ( ' 'l -\ l_., -l._, ~ Administrator/Representative Date Owner/Agent/Contractor Date Item II. Water Connection to Existing Water 6"WL 8"WL Std. FH Assembly 6" Gate Valve 8" Gate Valve Fittings Service Connections Test Lines Meter Vault Assembly (3" Service) Subtotal Cost Estimate Comfort Suites Project 04-00500134 College Station, Texas Quantity 2 ea. 900 If. 160 If. 3 ea . 7 ea . 4 ea. 1.00 tons 2 ea . 1 ea. 1 ea. Unit Cost Total $2 ,000/ea. $ 4,000.00 $15.50/lf. 14,000.00 $18.50/lf. 3,000 .00 $2400/ea. 7,000.00 $550/ea. 4,000.00 $750/ea. 3,000.00 $5,000/ton 5,000.00 $1,500/ea. 3,000.00 $5,000/ea. 5,000.00 $5,000/ea. 5,000.00 $ 53,000.00 July 13, 2004 Ms. Bridgette George Assistant Development Manager City of College Station P. 0. Box 9960 College Station , Texas 77842-9960 Re: Clearing and Grubbing Permit Comfort Suites Project College Station Lodging Partners, LP GE Job No.: 03-0100 Dear Ms. George: Enclosed for your review is the Erosion Control Plan (Sheet C2.3) for the referenced project. Upon approval of the Erosion Control Plan, please contact me so I can inform the contractor that they can apply for the Clearing and Grubbing permit for the site. Sincerely, 1712 Southwest Parkway, Suite #105, College Station, Texas 77840 •P.O. Box 10763, 77842-0763 • 979.680.8840 •FAX 979.680.8841 1400 South Austin Street, Brenham, Texas 77833 • 979.836.6855 •FAX 979.836.6847 www.GessnerEngineering.com FACSIMILE COVER SHEET 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 Date: c1J;/i iiJD ~ # of pages included cover -~--- If you did not receiV2 a complete fax , please call our office immediately for a new transmittal. To: J'.\tfhy, ~ Fax: [9'6D-~\ Company: 8.e.-ss ~l ~ From: Caswl ~ Phone: {69 -3S'70 --------~ Company: __ ___;;C:;;..;..it;;..J-y_;::o'-'-f-=-C....::;..o;;.;...;lle:;....;;g'-""e--"S:;...;;.ta.;;;..;..;t~io;..;....;n'---_________ _ Remarks: D Urgent ~or your review D Reply ASAP D FYI DATE, TIME FAX NO. /NAME DURATION PAGE(S) RESULT MODE TRANSMISSION VERIFICATION REPORT 09/17 15:30 %808841 00:00:55 03 OK STANDARD ECM TIME : 09/17/2004 15:31 NAME : COCS DEVELOPMENT SER FAX : 9797543495 TEL : 9797543570 SER.# : BROE2J341073 ·~ ~~~ J>iij ~'I~ 1.A=I D dVS'1' .l\1de~ D M9!A9J Jnol\ JO¥ . lU96Jn D :s~J2Ul9~ UO!lBlS aBa1108 JO Al!Q :Auedwoo OiS~ __. .b><JL. :euOLJd '}k~ l~ :woJ;:j ~ft 1~~u·ss?·l:) :t::uedwo~ r • ~ V ~--\-l-03---a'b-61----:xe:i 57>fk-zi, w+N :o.t _._J.~n!wsue;1 Mau e JOJ. A!91E!P9WW! a~w.o Jno 11eo asea1d <xe; 9l9Jdµmo e ?AJQOa} iou P!P nn.h JI September 13, 2004 Ms. Carol Cotter Project Graduate Engineer City of College Station Development Services 1101 Texas Avenue South, PO Box 9960 College Station, Texas 77842 Re: Cost Estimate Comfort Suites -04-00500134 College Station, Texas Job No.: 03-0100 Dear Ms. Cotter: 4:4£5"p. 04--(* G a-1~~ Gessner Engineering The following is a summary of the Construction Cost Estimate for improvements to the public infrastructure for the referenced project. 1. 135 Linear feet of 8 inch PVC waterline -$2,000 2. 960 Linear feet of 6 inch PVC waterline -$11,500 3. 20 Linear feet of 6 inch ductile iron waterline -$500 4. 3 Standard City of College Station fire hydrant assemblies -$9,000 5 . 1 Meter vault assembly for 3 inch domestic waterline -$5,000 6. Miscellaneous Flanged Fittings -$4,000 7. Miscellaneous Valves -$4,500 8. Miscellaneous Items -$3,500 The total construction cost estimated for this project is $40,000. If you have any questions, please do not hesitate to co e. ~ :to.. ;" "IE OF It:_ '''\\ -,.._-\ro••••o ..\'_,, '\ • JF -~·· ~ ··-:~ • ~-t·· ~ ·. *'j I·· ... ···········.:~ tt". i Sincerely, r,, AL TONG. ROGERS 2 ~~------:?,: ;;~.;. 508"33 ••• :·-;"I ---....~....,..-gers, P .E. 0 o,,;.,: 0 c e: N 5 'i:.-: • ._{<_,«;§ '\ ~~s •. • • • • <::>''",,,.,,, \'tt.~ IONAL f.~ ,,,,:::" .. ,,,,,~- 1712 Southwest Parkway, Suite #105, College Station, Texas 77840 •P.O. Box 10763, 77842-0763 • 979.680.8840 •FAX 979.680.8841 1400 South Austin Street, Brenham, Texas 77833 • 979.836.6855 •FAX 979.836.6847 www.GessnerEngineering .com > I ' Water/Wastewater Infrastructure r. _/ __ Hydrant Lines ~ + Hydrants ; ~ Valves Water Nodes / ~ N A G / Pipefits /- N A G CERTIFICATION I, Alton G. Rogers, Registered Professional Engineer No.50833, State of Texas, certify that this report for the drainage design for Comfort Suites, Lot 3 E, Block "V", University Park Subdivision -Phase II was prepared by me in accordance with the provisions of the City of College Station Drainage Policy and Design Standards for the ~~''''~· owners thereof. -..-r. oF .,.,,,. .,'\\ Alton G. Rogers, P.E. No. 50833 Drainage Report Comfort Suites , Lot 3E , Block "V", University Park Subdivision, Phase II ~c:i-<:,t~·····;1~~'·• J' *····---* J; ••• *•t 1·~: .. ..p7m/~~·.?-.~ ~ AL TON G . ROGERS 2 ~····················2 n ~·. soa33 .:~ K o o,;.<1. "{v~Jrj ., ~ \:>~~ ~~ Table of Contents Comfort Suites Lot 3E, Block "V", University Park Subdivision -Phase II Proposed Commercial Introduction: ..................................................................................................................... 1 General Location and Description ................................................................................... 1 Primary Drainage Basin Description ................................................................................ ~ Drainage Design Criteria ................................................................................................. ~ Drainage Facility Design .................................................................................................. ~ Conclusion ....................................................................................................................... 4 Exhibits FEMA Flood Insurance Rate Map Excerpt "A" Drainage Area Map -Existing Condition "B-1" Drainage Area Map -Proposed Condition "B-2" Drainage Area Calculations "C" Routing Hydrograph "D" Drainage Report Comfort Suites, Lot 3E , Block "V", University Park Subdivision, Phase II 11 Storm Drainage Report Comfort Suites Lot 3E, Block "V", University Park Subdivision -Phase II Proposed Commercial Introduction: This storm drainage report is intended to cover the necessary drainage infrastructure for the proposed development site improvements . The parameters used for design and the existing conditions of the on-site area are incorporated to show how the final drainage design will accomplish the desired drainage objectives per the City of College Station Dra inage Policy and Design Standards . (DPDS) General Location and Description: The proposed building is located in the northern portion of College Station east of the intersection of University drive and Spring Loop Road . The project site contains one commercial lots located at the northern end of the University Park Subdivision , Phase II. The lot is platted as Lot 3E, Block "V ", University Park Subdivision -Phase II, and is zoned C-1 General Commercial. The 2.00 acre site is previously undeveloped grassland and has an average slope of three (3) percent. The current land cover is considered natural grassland, and the proposed site will contain both landscaped areas and impervious areas . The proposed site is owned by College Station Lodging Partners, LP. The contact for this project is Mr. Victor Patel. The mailing address for College Station Lodging Partners, L.P. is 400 Krohn Court, Irv ing , Texas 75038 . Drainage Report Comfort Suites , Lot 3E , Block "V", Uni v ersity Park Subdiv ision , Phase II 1 Primary Drainage Basin Description: The current site drains from the southeast corner to the northwest corner of the lot. Storm water flows on the surface across the grassed field until it approaches the north edge of the tract. The runoff from the undeveloped tract then flows into the rear drive for the Spring Heights Apartments. This drive has an inverted crown to carry the runoff. This runoff then proceeds in the drive until the water is discharged into an unnamed tributary of Burton Creek. The developed site drains to the northwest corner of the tract to a detention pond . The runoff discharged from the detention pond flows into the rear drive for the Spring Heights Apartments. This drive has an inverted crown that slopes to the west. The rear drive then carries the runoff discharged from the detention structure into a tributary of Burton Creek . This tributary is situated in the 100 year flood plain. Based on the City DSPS and the fact that the site is I ocated int he Burton Creek Watershed, Gessner Engineering used the 100 year storm even for the drainage design. No portion of the proposed site is within the 100 year flood plain per the Federal Emergency Management Agency Flood Insurance Rate Map Panel 48041C0142 C. for Brazos County, Texas and Incorporated Areas effective July 2, 1992 (see Exhibit "A"). Drainage Design Criteria: All drainage design is in accordance with the City DSPS. The design rainstorm is the 100 year storm event. Flow calculations for all drainage areas are based on the Modified Rational Method. Storm recurrence intervals used were the 10, 25, 50, 100 year interval storm event. The storage volume required for the detention facility is based on calculations Drainage Report Comfort Suites , Lot 3E , Block "V ", University Park Subdiv ision, Phase II 2 outlined in the City DSPS method of subtracting pre-and post-development hydrographs and peak flows computed using the Rationa l Method for one hundred (100) year design storm event. The site requires 0.2646 ac-ft of storm water storage. Drainage Facility Design: The site will be served by a detention facility in the northwest corner of the two (2) acre tract. All impervious area created by the buildings and parking lot will be capt~ur:.:=e~~- 7 routed to the detention area. A detention facility measuring 102 feet I g with a height varying between forty-two (42) feet at the west end and twelve (12) feet at tile east end . The bottom elevation of the detention basin is 302 .0. The top of the detention structure walls is 306. 75. Runoff enters the structure at the northwest portion of the parking area at elevation 306 .97 . The outlet structure is a four (4) inch PVC pipe. The discharge from the four ( 4) inch PVC outlet pipe does not exceed the Pre-development flow for the site . The estimated discharge for each design storm is provided in attached Table. Discharge Versus Head In Detention Facility Design Flow Storage Depth (ft) Discharge (cfs) 010 2 .82 5.18 02s 3.22 5.92 Oso 3.64 6.69 0100 4.18 6.98 Drain age Repo rt Comfort Suites, Lot 3E , Block "V ", Univ ersity Park Subdiv ision, Phase II 3 The study point for the project is the outfall device of the proposed detention facility which consists of a four (4) inch wide PVC pipe feeding into energy dissipating structures. The detention area outflow elevation is 302.00 feet. The maximum detention pond elevation is 306. 75 feet as determined by the six (6) inch curb cut which is shown on the site plan. The detention area has a storage capacity of 0.3003 ac-ft. The following summary table shows the Storage Required for the 10, 25, 50, and 100 year events and the Storage Provided for the site. Study Point -Detention Area Pre-development Post-development Storage Required Storage Provided cf s cf s AC-FT AC-FT 010 5.178 13.808 0.1961 0.3003 025 5.916 15.776 0.2241 0.3003 050 6.690 17.840 0.2534 0.3003 0100 6.980 18.620 0.2646 0.3003 Conclusion: The Storage Required does not exceed the Storage Provided for the 10, 25, 50, or 100 year event. In all cases, including the 100 year event, storm water is released into the drainage easement provided directly north of the project. The drainage design for this site Drainage Report Comfort Suites , Lot 3E , Block "V", University Park Subdivision, Phase II 4 exceeds the requirements as stated in the City of College Station Drainage Policy and Design Standards. Drainage Report Comfort Suites, Lot 3E , Block "V", University Park Subdivision , Phase II 5 R OFFICE USE ONLY P&Z CASE NO.: o+= 1~4 DATE SUBMITTED: ':::Jo)J).{)c/ SITE PLAN APPLICATION MINIMUM SUBMITIAL REQUIREMENTS V' Site plan application completed in full. ~ $200.00 Application Fee. ~ $200.00 Development Permit Application Fee. ---r-$600.00 Public Infrastructure Inspection Fee if applicable. (This fee is payable if construction of a public I waterline, sewerline, sidewalk, street or drainage facilities is involved.) Eleven ( 11) folded copies of site plan -r_ One (1) folded copy of the landscape plan. ~Two (2) copies of public infrastructure plans associated with this site plan (if applicable). Z-One (1) copy of building elevation required for buildings with a footprint of 20,000 sq. ft. or greater ~ A list of building materials for all facades that are visible from the public right-of-way. I A copy of the attached site plan checklist with all items checked off or a brief explanation as to why they are not checked off. J{/A_Parkland Dedication requirement approved by the Parks & Recreation Board, please provide proof of approval (if applicable). Date of Preapplication Conference:-.F ... Q'""'~~;r;.-4o''"liil. ... ;r; .... 21"-, --1 .... 6'T", -2 ..... 0 ..... 0 .... 4....._ _____________ _ NAME OF PROJECT Comfort Suites ADDRESS _____ C\....;;...1)..;,.._:1_,___.......::LLMN::...JL.....:.-"<-\ J~__,IJfi.:;;,...__._E~c -------- LEGALDESCRIPTION Lot 3E, Block "V", Universityy Park Subdivision, Pha Se II APPLICANT/PROJECT MANAGER'S INFORMATION (Primary Contact for the Project): Name Alton G Roqers, P,E. StreetAddress1712 Southwest Pkwy. Suite 105 Cfy College Station State TX Zip Code _7~7~8~4~0 ___ _ Phone Number ( 9 7 9 ) 6 8 0-8 8 4 0 E-Mail Address arogers@gessnerengineering.co; Fax Number ( 979) 680-8841 PROPERTY OWNER'S INFORMATION: Name College Station Lodging Street Address 4 0 0 Krohn Court Partners. LP (Mr. Victor P&tel ) Cify Irving State TX Zip Code _7,_5 .... 0 .... 3.-..8...._ __ _ E-Mail Address Vmpatel@hotmail, com Fax Number ( 9 7 2 ) 5 7 0 - 7 4 21 Phone Number ( 4 6 9 ) 2 2 3 - 7 3 1 7 ARCHITECT OR ENGINEER'S INFORMATION: Name Shane Sigrist, RSS Architects, LLC Street Address 1304 W. Abrom, Suite 250 Cify Arlington State _T~X~---Zip Code 7601 3 Phone Number ( 81 7 ) 6 4 0 - 9 0 0 3 6/13/03 E-Mail Address rssarchi tect@yahoo.com Fax Number ( 817) 649-841 0 I of6 OTHER CONTACTS (Please specify type of contact, i.e. project manager, potential buyer, local contact, etc.) Name _...u.>,.......,.._ ____________________________ _ Street Address -----------------City ---------- State -----Zip Code _____ _ Phone Number ----------- E-Mail Address ------------- Fax Number -------------- CURRENT ZONING C-1 1 General Commercial PRESENT USE OF PROPERTY Unoccupied/Undeveloped PROPOSED USE OF PROPERTY Hotel/Motel ------------------------- VARIANCE(S) REQUESTED AND REASON(S) ............. u...=------------------ #OF PARKING SPACES REQUIRED 8 3 #OF PARKING SPACES PROVIDED 85 -------- MULTl-FAMIL Y RESIDENTIAL PARKLAND DEDICATION Total Acreage ____ _ #of Multi-Family Dwelling Units Floodplain Acreage __ _ _ __ x $452 = $ _______ _ Housing Units ____ _ ___ # of acres in floodplain ___ # of 1 Bedroom Units _ __ # of acres in detention ,. ___ # of 2 Bedroom Units ___ # of acres in greenways ___ #of 3 Bedroom Units ___ date dedication approved by Parks Board ___ # of 4 Bedroom Units COMMERCIAL FOR 2 BEDROOM UNITS ONLY Total Acreage _2_. _o_o ____ _ ___ #Bedrooms= 132 sq. ft. Building Square Feet 1 6 , 0 2 8 ( 1 st ) I 4 6 , 7 5 all floors ___ #Bedrooms< 132 sq. ft. Floodplain Acreage _____ _ NOTE: Parkland Dedication fee Is due prior to the Issuance of a Building Pennit. The applicant has prepared this application and certifies that the facts stated herein and exhibits attached hereto are true and correct. Date 7 ' 6/13103 2of6 SUPPLEMENTAL DEVELOPMENT PERMIT INFORMATION Application is hereby made for the following development specific site/waterway alterations: Comfort Suites located at Lot 3E, Block 11 V11 , University Park Subdivision, Phase II ACKNOWLEDGMENTS: I, --A ... l ..... t ..... o .... n......_ .... R ..... o ..... g+<e-...r.......,.5 _,.., ____.p___.E......._ ____ , design engineer/QWflef, hereby acknowledge or affirm that The information and conclusions contained in the above plans and supporting documents comply with the current requirements of the City of College Station, Texas City Code, Chapter 13 and its associated Drainage Policy and Design Standards. As a condition of approva 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. t!t:M &L /; $/L 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. All development shall be in accordance with the plans and specifications submitted 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. 6/13/03 3of 6 1. 2. 4. 5. 6. 8 . ~ ' ~ 6/13/03 SUBMIT APPLICATION AND THIS UST CHECKED OFF WITH 10 FOLDED COPIES OF SITE PLAN FOR REVIEW SITE PLAN MINIMUM REQUIREMENTS (All CITY ORDINANCES MUST BE MET) INCLUDING BUT NOT LIMITED TO THE FOLLOWING: Sheet size -24" x 36" (minimum). A key map (not necessarily to scale). Title block to include: Name, address, location , and legal description Name, address, and telephone number of applicant Name, address, and telephone number of developer/owner (if differs from applicant) Name, address , and telephone number of architect/engineer (if differs from applicant) Date of submittal Total site area North arrow. Scale should be largest standard engineering scale possible on sheet. Ownership and current zoning of parcel and all abutting parcels. Existing locations of the following on or adjacent to the subject site: Streets and sidewalks (R.O.W.). Driveways (opposite and adjacent per Section 7 .3 of the .Unified Development Ordinance). Buildings. Water courses. Show all easements clearly designating as existing and type (utility, access, etc.). 100 yr. floodplain and floodway (if applicable) on or adjacent to the proposed project site, note if there is none on the site . Utilities (noting size and designate as existing) within or adjacent to the proposed site, including building transformer locations, above ground and underground service connections to buildings, and drainage inlets. Meter locations. Topography (2 ' max or spot elevations) and other pertinent drainage information. (If plan has too much information , show drainage on separate sheet.) Proposed location, type and dimensions of the following.: Phasing. Each phase must be able to stand alone to meet ordinance requirements . The gross square footage of all buildings and structures and the proposed use of each. If different uses are to be located in a single building, show the location and size of the uses within the building . Building separation is a minimum of 15 feet w/o additional fire protection. Setbacks. Show building setbacks as outlined in the Unified Development Ordinance, Article 5. Off-Street parking areas with parking spaces drawn , tabulated, and dimensioned . Minimum parking space is 9' x 20', or on a perimeter row 9 ' x 18' with a 2 ' overhang. Designate number of parking spaces required by ordinance and provided by proposal. 4of 6 NOTE: 6/13103 0 0 0 0 ri ' 9. 10. Handicap parking spaces . Parking Islands . Raised landscape islands, (6 " raised curb) a m inimum of 180 sq . ft . are required at both ends of every parking row (greenspace area contiguous to the end island maybe appl ied toward the required 180 sq . ft .). Additionally, 180 sq . ft. of landscaping for every 15 interior parking spaces must be provided . All required islands must be landscaped or set with decorative pavers , or stamped dyed concrete or other decorative materials as approved. Drives. Minimum drive aisle width . Curb cuts . For each proposed curb cut (includ ing driveways, streets, alleys, etc.) locate existing curb cuts on the same opposite side of the street to determine separation distances between existing and proposed curb cuts . Indicate driveway throat length as measured in the Unified Development Ordinance, Section 7.3 Access Management and Circulation . Security gates (show swing path and design specs with colors). 114 Sidewalks (both public and private). Sidewalks are required at time of development if property has frontage on a street shown on the Sidewalk Master Plan or if the review staff determines the necessity. II/A Medians. Show any and all traffic medians to be constructed on site . N} A fifteen foot parking setback from R.O.W. to curb of parking lot is required. Pavement may encroach into this 15' setback by up to 7 contiguous parking spaces . A double parking island (360 square feet) must be provided between each group of seven spaces. In no case may the pavement be less than 6' from the property line. /J/4 Common open spaces sites NI~ Loading docks N,14 Detention ponds Guardrails N/A Retaining walls N/A Sites for solid waste containers with screening. Locations of dumpsters are accessible but not visible from streets or residential areas . Gates are discouraged and visual screening is required. (Minimum 12 x 12 pad required.) Show all easements clearly designating as proposed and type (utility, access, etc.). If dedicated by separate instrument list by volume and page. Utilities (noting size and designate as proposed) within or adjacent to the proposed site, including building transformer locations, above ground and underground service connections to buildings. Meter locations (must be located in public R.O.W. or public utility easement.). Proposed grading (1 ' max for proposed or spot elevations) and other pertinent drainage information. (If plan has too much information, show drainage on separate sheet.) Show proposed and existing fire hydrants. Fire hydrants must be located on the same side of a major street as a project, and shall be in a location approved by the City Engineer. Any structure in any zoning district other than R-1, R-1A, or R-2 must be within 300 feet of a fire hydrant as measured along a public street, highway or designated fire lane . Show fire department connections. FDC's should be within 150' of the fire hydrant. In no case shall they be any further than 300' apart, and they shall be accessible from the parking lot without being blocked by parked cars or a structure . Show fire lanes. Fire lanes a minimum of 20 feet in width with a minimum height clearance of 14 feet must be established if any portion of the proposed structure is more than 150 feet from the curb line or pavement edge of a public street or highway. Fire hydrants must be operable and accepted by the City, and drives must have an all weather surface as defined in the Zoning Ordinance Section 9 before a building permit can be issued . Will building be sprinkled? Yes ' No 0 If the decision to sprinkle is made after the site plan has been approved , then the plan must be resubmitted . Wheelstops may be required when cars overhang onto property not owned by the applicant or 5 of 6 0 ' 11 . 12 . 13 . 14 . 15 . 16. 17 . 18. 19 . 20. NOTE: 6/13/03 where there may be conflict with hand icap accessible routes or above ground utilities , signs or other conflicts . Show curb and pavement detail. A 6 " raised curb is required around all edges of all parts of all paved areas without exception . (To include island, planting areas, access ways , dumpster locations, utility pads, etc.) No exception will be made for areas designated as "reserved for future parking". Landscape plans as required in Section 7 .5 of the Unified Development Ordinance . The landscaping plan can be shown on a separate sheet if too much information is on the original site plan. If requesting protected tree points, then those trees need to be shown appropriately barricaded on the landscape plan . Attempt to reduce or eliminate plantings in easements . Include information on the plans such as: required point calculations additional streetscape points required. Streetscape compliance is required on all streets. calculations for# of street trees required and proposed (proposed street tree points will accrue toward total landscaping points .) proposed new plantings with points earned proposed locations of new plantings screening of parking lots , 50 % of all shrubs used for screening shall be evergreen. screening of dumpsters, concrete retaining walls, off street loading areas, utility connection points, or other areas potentially visually offensive . existing landscaping to remain sho-.y existing trees to be barricaded and barricade plan. Protected points will only be awarded if barricades are up before the first development permit is issued. Buffer as required in Section 7 .6 of the Unified Development Ordinance. Show irrigation system plan . (or provide note on how irrigation system requirement will be met prior to issuance of C.O.) All plans must include irrigation systems for landscaping. Irrigation meters are separate from the regular water systems for buildings and will be sized by city according to irrigation demand submitted by applicant and must include backflow prevention protection. See,. ).)1 /t ,.,.. l.S-/ ,. Is there any landscaping in TxDOT R.O.W .? Yes 0 No r/ If yes , then TxDOT permit must be submitted. ' Will there be any utilities in TxDOT R.O.W.? Yes 0 No If yes, then TxDOT permit must be submitted. ~ Will there be access from a TxDOT R.O.W.? Yes No 0 If yes, then TxDOT permit must be submitted . l~l~Nt() The total number of multi-family buildings and units to be constructed on the proposed project site. The density of dwelling units per acre of the proposed project. Provide a water and sanitary sewer legend to include water demands (minimum , maximum and average demands in gallons per minute) and sewer loadings (maximum demands in gallons per day). Are there impact fees associated with this development? Signs are to be permitted separately. Yes O No~ 6 of 6