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HomeMy WebLinkAbout4 Development Permit 661 Steeplechase Subd.Dra1nage Report FOR STEEPLECHASE SUBDIVISION PHASE SL / VICINITY MA l?f-,, \: ct NTS co~ ,, ~ ~~~ JUNE, 1999 ~U\. ·:\pi..\·, f:-Gf(;. <o ~\~<:,, Prepared By: co\..V. G~ ~~v McClure Engineering, Inc. : ~~ f_ \ 17 22 Broadmoor Drive , Suite 210 \' - Bryan , Texas 77802 ( 409) 776 -6 7 00 CERTIFICATION I, Steven C. Franks , Registered Professional Engineer No . 83551 , State of Texas , certify that this report for the drainage design for the STEEPLECHASE SUBDIVISION PHASE SIX, was prepared by me in accordance with the provisions of the City of College Station Drainage Policy and Design Standards for the owners thereof ~~''''"· ;'~~OF r~_;~\~ I' ~~t;·· ........ ,~ .• ,. A'*l * ···.~· ~.~: ....••......•..•• ~ ~STEVEN C. FRANKS2 ~ .................... , 1A -o·· 83551 l$ II .. ,?o,tlt C E NS~~~~ • ,,~;s·······~e>...., ,~~~/ONA\.€ -.,,,,,~- STORM DRAINAG E REPORT STEEPLECHASE SUBDfVISION PHASE SIX Steven C. Franks, P.E. No. 83551 Page i TABLE OF CONTENTS STEEPLECHASE SUBDIVISION PHASE SIX INTRODUCTION 1 LOCATION 1 DESCRIPTION 1 DRAINAGE BASIN 2 DRAINAGE DESIGN CRITERIA 2 STORM DRAIN FACILITY DESIGN 3 TECHNIQUE OF ANALYSIS 3 DETENTION FACILITY DESIGN 3 CONCLUSION 4 TABLE OF EXIDBITS EXCERPT FROM FLOOD INSURANCE RATE MAP "A" DRAINAGE AREA MAP -EXISTING CONDITIONS "B-1 " DRAINAGE AREA MAP -PROPOSED CONDITIONS "B-2" DRAINAGE AREA MAP -STORM DRAIN I INLET DESIGN "B-3 " RATIONAL FORMULA DRAINAGE AREA CALCULATIONS "C-1 " INLET COMPUTATIONS "C-2" PIPE SIZE CALCULATIONS "C-3 " PROPOSED DETENTION POND ROUTING "D-1 " ROUTING HYDROGRAPH "D-2" STAGE-STORAGE AND STAGE-DISCHARGE CURVES "D-3 " DRAINAGE REPORT ll STEEPLECHASE SUBDIVISION PHASE SIX DRAINAGE REPORT STEEPLECHASE SUBDIVISION PHASE SIX INTRODUCTION: The purpose of this report is to study potential drainage effects from the proposed Steeplechase Subdivision Phase Six. Results from the analysis of existing conditions and proposed improvements are provided to show that the final design accomplishes the objectives of the City of College Station Drainage Policy and Design Standards (DPDS) by controlling runoff from this site. LOCATION: The site is located in southern College Station, south of FM 2818 and East of FM 2154. Bordering the site are future phases 5-A and 5-B and Southwood Valley Section 23 on the east. Southwood Valley Section 24D and Oakbrook Valley Section One are to the south. Undeveloped lots border the site to the west and Navarro Drive is to the north. The site drains to a tributary of Bee Creek. DESCRIPTION: The Phase Six site area is 19 acres. The site is generally open with small clusters of trees throughout the site . A portion of Phase Six drains to the west. The drainage from this area drains into the existing detention pond build with Steeplechase Phase One. The remainder of Phase Six drains to the east into an existing concrete channel and drainage right-of-way. This drainage report is for the small detention pond to be built as part of Phase Six. The pond will be located in the eastern comer of the site. Storm drain design for runoff that flows to the west DRAINAGE REPORT STEEPLECHASE SUBDIVISION PHASE SIX to the existing detention pond was performed with the drainage report titled, "Drainage Report for Steeplechase Subdivision" dated November, 1998 and revised February, 1999. DRAINAGE BASIN: The primary drainage basin for the site is a tributary of Bee Creek. Bee Creek is a tributary of Carters Creek. This property is not located in a 100-Year Flood Hazard Area according to the Flood Insurance Rate Maps for Braws County, Texas and Incorporated Areas, Map No. 48041Cl82 C effective July 2, 1992 as prepared by the Federal Emergency Management Agency (See Exhibit "A"). DRAINAGE DESIGN CRITERIA: The proposed drainage system is designed in accordance with the City of College Station DPDS. 1be design storm is a 10-year event and flow calculations are based on the Rational Method. Pipe sizes were determined from Manning's Equation using an ''n" of 0.014. Required storage volume for the detention pond was developed using a triangular hydro graph (base = 3 * Tc) and the Storage-Routing Analysis per the DPDS. Exhibit "B-1" and "B-2" shows the drainage areas (existing and proposed) and the location of the proposed detention facility on the site. Exhibit ''B-3" shows the proposed storm drain drainage areas. Note the significant decrease in acreage of the drainage areas flowing toward Oakbrook Valley Section One and Southwood Valley Section 24D. The design of the Oakbrook Valley Section One and Southwood Valley Section 24D did not provide for storm drainage from this site, despite the natural drainage patterns. With the grading of these two subdivisions the flow patterns are blocked. Because of this situation the design of Steeplechase must provide a storm drain system to remove the storm water trapped by the previous DRAINAGE REPORT 2 STEEPLECHASE SUBDIVISION PHASE SIX construction, thereby minimizing the amount of flow along this border. Additionally, the pond was designed to detain as much water as practical to minimize the flows discharged into the existing channel. STORM DRAIN FACILITY DESIGN: Storm water from the proposed development will be captured in the curbs and flumes. The curbs will convey the storm water to the inlets and into the storm drainage system. The storm drain system will convey the water by reinforced concrete pipe. Storm water from Axis Court, Trace Meadows and a portion of Pronghorn Loop and Antelope Lane will be carried by storm drain to the existing detention pond built with phase one. The remaining runoff from Phase Six will be detained by the proposed detention pond. TECHNIQUE OF ANALYSIS: Exhibit "C-1" shows the drainage area calculations for the drainage areas shown in Exhibit ''B-3." Exlubit "C-2" shows the inlet computations for the respective drainage areas. Exhibit "C-3" shows the pipe siz.e computations for the storm drain system. Note that in all cases the computations use the parameters provided in the DPDS. DETENTION FACILITY DESIGN: The proposed detention facility will be located in the eastern corner of Phase Six. The outlet structure will be a single 12" RCP that will discharge into the existing drainage flume system. The outlet structure invert is 288.11' and the top of the berm is 292.5'. The size of the pond was maximized to detain as much storm water as possible. The small outlet structure will meter the storm DRAINAGE REPORT 3 STEEPLECHASE SUBDIVISION PHASE SIX water to minimize the storm water discharge into the existing concrete flume. Exhibits "D-1 ", "D-2", and "D-3" show the proposed detention pond routing, the routing hydrograph, the stage-storage curve, and the stage-discharge curve. Table 1 below shows the pre-development and post-development flows at the study point, the outlet of the proposed detention pond. The post-development flows that enter the existing concrete flume are approximately 30% of pre-development flows . Table 1 Study Point A (Outfall of Detention Pond) Design Event Pre-Development Post-Development Detention Pond Water Surface Elev. Q5= 30 cfs 11 cfs 290.40 Q10= 33 cfs 11 cfs 290.60 Q15= 38 cfs 12 cfs 290.80 Qso= 43 cfs 13 cfs 291.00 Q100= 49 cfs 14 cfs 291.30 Top of Berm= 292.50 ·CONCLUSION: The post-development flows are less than the pre-development flows for all storm events. Runoff from the site is controlled in public easements, rights of ways, and the primary channel. The drainage design for this subdivision meets the requirements as stated in the City of College Station Drainage Policy and Design Standards. DRAINAGE REPORT 4 STEEPLECHASE SUBDIVISION PHASE SIX ' "-, ' \ I , ' / / / PROJ ECT SI TE / } Scale : 1" d 600' / EXH IBI T "A" Flood Insurance Rate Map Excerpt Brazos County, Texas and Incorporated Areas Map Numbers: 48041C0182C Effective Date: July 2 , 1992 \ ct 3: UJ 0 0 ex: UJ ...J ...J ct ct c.. ct u. UJ UJ 0 i== I-0 (!) ex: ...J z ct z ct ct UJ z UJ u ~~ ...J > UJ :E ...J z ct UJ ct 0 UJ ct ex: (!) ~ en I-0 UJ > I-UJ z 0 z ex: UJ ct 0 > UJ 0 I-::::> ct ex: c.. I-0 ...J NO. AC. 0.4 0.55 0.9 ft. 61 1.76 0.00 1.76 0.00 0.97 372.0 62 0.77 0.00 0.77 0.00 0.42 61.0 63A 0.63 0.00 0.63 0.00 0.35 73.0 638 0.54 0.00 0.54 0.00 0.30 36.0 64 1.08 0.00 1.08 0.00 0,59 52.0 65 1.50 0.00 1.50 0.00 0.83 308.0 E5 10.10 10.10 0.00 0.00 4.04 600.0 EXHIBIT C-1 Rational Formula Drainage Area Calculations STEEPLECHASE PHASE SIX 3: 0 3: 3: ...J u. 0 0 0 ...J ...J z u. u. ~ ~ ex: ::x: ex: u UJ I-UJ u I-u ex: ...J ~ (!) ~ ...J 0 I-u UJ ...J ::::> z ::::> ...J ...J UJ > ct (!) ~ (!) ~ UJ cu en N It) 0 u. > u ::::> !:::! 0 !!:? 0 ft. ft. ft. ft/s min min In/Hr cfs In/Hr cfs 6.0 10.0 0.1 0.9 7.0 7.0 7.32 ?: 1 8.8 8.5 0.6 333.0 6.7 1.9 3.4 5.0 8.22 3.5 9.9 4.2 0.7 304.0 1.8 1.2 5.0 5.0 8.21 2.8 9.8 3.4 0.4 333.0 6.7 2.2 2.8 5.0 8.22 2.4 9.9 2.9 0.5 840.0 4.2 1.3 11.2 11.2 6.00 3.6 7.3 4.3 6.0 1.0 1.0 1.0 5.2 5.2 8.12 6.7 9.7 8.0 10.0 1.0 1.0 0.9 11.0 11.0 6.07 24.5 7.4 29.9 0 It) 0 ..... It) N ::!::: 0 !:::! 0 In/Hr cfs In/Hr cfs 9.9 9.6 11.3 10.9 11.0 4.7 12.5 5.3 11.0 3.8 12.5 4.3 11.0 3.3 12.5 3.7 8.2 4.9 9.4 5.6 10.9 9.0 12.4 10.2 8.3 33.5 9.5 38.3 0 0 It) !!:? 0 In/Hr cfs 12.7 12.3 14.1 6.0 14.1 4.9 14.1 4.2 10.6 6.3 13.9 11.5 10.7 43.4 0 0 0 0 ..... ::!::: 0 In/Hr cfs 14.2 13.8 15.8 6.7 15.8 5.5 15.8 4.7 12.0 7.1 15.6 12.9 12.1 48.7 6/2/99 9916-dra.xls Exhibit C-1 - °' °' °' °' DRAINAGE w w to >-N ...... AREA NO. ~ ~ ~ °' Overflow N Drainage Area n w w """ \0 1il" Drainage area Q w 00 -.J °' ~ ~ 0 0 Q Carry Over 0 0 0 0 w w """ \0 Total Q at Inlet w 00 -.J °' N N N N Street Width 00 00 00 00 0 0 ~ ...... Required Street iv iv w w -;g_ 0 '*-'*-'*-Slope(%) °' °' °' Inlet No. w N ...... ;--.I """ \0 Total Q at Inlet -~ °' ~ i i ~ (I> Vl tr.l Vl Vl Vl (I> (I> (I> 00. 0.. 0.. 0.. (":) I:""' I:""' I:""' ~ 0 ~ ~ ~ '"C '"C '"C ~ 0 0 0 s· s· s· ~ ---0 S' S' S' z ~ ~ ~ N !'-' !'-' n CAP. Per L.F. w w w 1il" w w w w -""" (j 0 \0 0 =-c: L. Reqd. N \0 \0 ., C" -c:s L. Provided Vl Vl Vl =-;-- 0 0 0 0 Q Carry Over =-Ponded Depth n C') CAP. Per S.F . 1il" ., so -"' ~ .c -Area Required = c:s ;--"' .c Area Provided I = e 0 < i.. ~ u 0 z g ..... ~ rJ) ~ < = ~ b.ll ~ g .... 0 0 VJ c.J ~ ~ ~ ~ ~ # # Ac. min yr 61 62 1.0 7 .0 10 62 63A 1.4 7.5 10 638 HW1 2 .0 7.7 10 *I ncludes 25% Flow Increase for pipe sizes <27'' dia . EXHIBIT C-3 PIPE SIZE CALCULATIONS STEEPLECHASE PHASE SIX = b.ll ·;;; = « ~ b.ll « ~ ·;;; ~ ~ c. c. ~ VJ .... 0 "O ~ ~ ~ ~ -..... "O c. i.. rJ) VJ ~ ~ ~ = = ._, ..... c.... ~ 0 "O VJ « 0 .... ~ .:, ~ ~ ..... = c.J = 0 "O 0 0 0 ·;::: -<~ -~ ~ z ~ ~ cfs cfs # cfs % 9 .6 11.9 1 11 .9 0.32 13.4 16.8 1 16.8 0 .63 19.4 24 .3 1 24.3 1.33 ** See Plan & Profile for pipe slope used (P ipe slope >or= Friction slope) s 0 ~ ~ z ~ ~ ~ rJ) ~ " fps ' 24 3.8 117 24 5.3 52 24 7.7 47 ~ e .... "O ~ ~ = s ~ ~ @ > 8 = ~ i.. c.J ~ ~ ~ min m in ' ' 0.51 7.53 0.16 7 .69 0 .10 7.80 6/2199 9916-dra.xls Exhibit C-3 D.A. # D.A. # 'It: .J:. 0 c. w l'CI z .. ~ jjj "C ~ "C c >-0 8 :i: Q. Qp 24.4 Tc 7.8 inc 1.0 Time cfs cfs 0.0 0.0 0.0 1.0 3.1 3.1 2.0 6.3 6.3 3.0 9.4 9.4 4.0 12.5 12.5 5.0 15.6 15.6 6.0 18.8 18.8 7.0 21.9 21.9 8.0 24.1 24.1 9.0 22.5 22.5 10.0 20.9 20.9 11.0 19.4 19.4 12.0 17.8 17.8 13.0 16.3 16.3 14.0 14.7 14.7 15.0 13.1 13.1 16.0 11.6 11.6 17.0 10.0 10.0 18.0 8.4 8.4 19.0 6.9 6.9 20.0 5.3 5.3 21.0 3.8 3.8 22.0 2.2 2.2 23.0 0.6 0.6 24.0 0.0 0.0 25.0 0.0 0.0 26.0 0.0 0.0 27.0 0.0 0.0 28.0 0.0 0.0 29.0 0.0 0.0 30.0 0.0 0.0 31.0 0.0 0.0 32.0 0.0 0.0 33.0 0.0 0.0 34.0 0.0 0.0 35.0 0.0 0.0 36.0 0.0 0.0 37.0 0.0 0.0. 38.0 0.0 0.0 39.0 0.0 0.0 40.0 0.0 0.0 PEAK FLOWS 24 24 0.00 indicates inital condition EXHIBIT "D-1" PROPOSED DETENTION POND ROUTING STEEPLECHASE PHASE SIX Pond Routing EVENT= 5 D.A. # c a + c :!:! c 0 .... q + .... ; c -+ .... "C l'CI + :E c + c > I/) I/) c 0 .!! ~ .5 N N a Q. w 4.3 11.2 cfs cfs cfs cfs ft cfs 3.13 0.00 0.00 0.00 288.1 0.0 9.38 2.03 3.13 0.55 288.2 0.4 15.63 7.43 11.41 1.99 288.5 0.8 21.88 15.01 23.06 4.03 289.0 1.2 28.14 28.29 36.89 4.30 289.1 1.5 34.39 47.41 56.43 4.51 289.2 1.9 40.64 72.25 81.80 4.78 289.3 2.3 45.96 102.68 112.89 5.11 289.5 2.7 46.58 137.67 148.64 5.48 289.7 3.1 43.46 172.53 184.25 5.86 289.9 3.5 40.33 203.75 215.98 6.12 290.0 3.9 37.20 231.61 244.08 6.23 290.1 4.3 34.08 256.15 268.82 6.33 290.2 4.2 30.95 277.39 290.23 6.42 290.2 4.0 27.82 295.35 308.34 6.50 290.3 3.8 24.70 310.06 323.17 6.56 290.3 3.6 21.57 321.55 334.76 6.60 290.4 3.4 18.45 329.85 343.12 6.64 290.4 3.2 15.32 334.97 348.29 6.66 290.4 3.0 12.19 336.96 350.29 6.67 290.4 2.8 9.07 335.83 349.15 6.66 290.4 2.6 5.94 331.60 344.89 6.65 290.4 2.5 2.81 324.31 337.54 6.61 290.4 2.3 0.63 313.98 327.13 6.57 290.4 2.1 0.00 301.56 314.61 6.52 290.3 1.9 0.00 288.63 301.56 6.47 290.3 1.7 0.00 275.80 288.63 6.41 290.2 1.5 0.00 263.08 275.80 6.36 290.2 1.3 0.00 250.46 263.08 6.31 290.2 1.1 0.00 237.94 250.46 6.26 290.1 0.9 0.00 225.53 237.94 6.21 290.1 0.7 0.00 213.22 225.53 6.16 290.1 0.5 0.00 201.00 213.22 6.11 290.0 0.3 0.00 188.93 201.00 6.04 290.0 0.1 0.00 177.10 188.93 5.91 289.9 0.0 0.00 165.53 177.10 5.79 289.9 0.0 0.00 154.20 165.53 5.66 289.8 0.0 0.00 143.12 154.20 5.54 289.7 0.0 0.00 132.26 143.12 5.43 289.7 0.0 0.00 121.64 132.26 5.31 289.6 0.0 0.00 111.25 121.64 5.20 289.5 0.0 7 290.4 4 0 w I/) ..J 0 < Q. I-0 0 0::: ~ Q. cfs 0.00 0.93 2.77 5.19 5.85 6.44 7.10 7.82 8.58 9.35 9.99 10.49 10.53 10.42 10.30 10.17 10.02 9.87 9.69 9.51 9.31 9.10 8.87 8.64 8.39 8.15 7.90 7.65 7.41 7.16 6.92 6.67 6.43 6.17 5.91 5.79 5.66 5.54 5.43 5.31 5.20 11 D.A.# IO w 29.9 11.0 cfs 0.0 2.7 5.4 8.2 10.9 13.6 16.3 19.1 21.8 24.5 27.2 29.8 28.4 27.1 25.7 24.4 23.0 21.6 20.3 18.9 17.5 16.2 14.8 13.5 12.1 10.7 9.4 8.0 6.7 5.3 3.9 2.6 1.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 30 9916-dra.xls Exhibit 0-1 (!) ..J z < i= I-!!2 g~ cfs 0.00 2.72 5.45 8.17 10.89 13.62 16.34 19.07 21.79 24.51 27.24 29.81 28.44 27.08 25.72 24.36 23.00 21.63 20.27 18.91 17.55 16.19 14.83 13.46 12.10 10.74 9.38 8.02 6.65 5.29 3.93 2.57 1.21 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 30 D.A.# D.A.# 'It: .J:. Q Q. w "' ... z ~ iii ,, :::!: ,, c: 0 >-0 :i: 0.. 0 Qp 27.3 Tc 7.8 inc 1.0 Time cfs cfs 0.0 0.0 0.0 1.0 3.5 3.5 2.0 7.0 7.0 3.0 10.5 10.5 4.0 14.0 14.0 5.0 17.5 17.5 6.0 21.0 21.0 7.0 24.5 24.5 8.0 26.9 26.9 9.0 25.2 25.2 10.0 23.4 23.4 11.0 21.7 21.7 12.0 19.9 19.9 13.0 18.2 18.2 14.0 16.4 16.4 15.0 14.7 14.7 16.0 12.9 12.9 17.0 11.2 11.2 18.0 9.4 9.4 19.0 7.7 7.7 20.0 5.9 5.9 21.0 4.2 4.2 22.0 2.4 2.4 23.0 0.7 0.7 24.0 0.0 0.0 25.0 0.0 0.0 26.0 0.0 0.0 27.0 0.0 0.0 28.0 0.0 0.0 29.0 0.0 0.0 30.0 0.0 0.0 31.0 0.0 0.0 32.0 0.0 0.0 33.0 0.0 0.0 34.0 0.0 0.0 35.0 0.0 0.0 36.0 0.0 0.0 37.0 0.0 0.0 38.0 0.0 0.0 39.0 0.0 0.0 40.0 0.0 0.0 PEAK FLOWS 27 27 0.00 indicates inital condition EXHIBIT "D-1" PROPOSED DETENTION POND ROUTING STEEPLECHASE PHASE SIX Pond Routing EVENT= 10 D.A.# c: a i c: c: .... ~ .2 + .... .... ,, ~ c: + + c: + C: GI Cl) ~ a 0-;z c: N 0.. w 4.9 11.2 cfs cfs cfs cfs ft cfs 3.50 0.00 0.00 0.00 288.1 0.0 10.50 2.28 3.50 0.61 288.2 0.4 17.50 8.31 12.78 2.23 288.6 0.9 24.49 17.44 25.81 4.18 289.0 1.3 31.49 33.23 41.94 4.35 289.1 1.7 38.49 55.53 64.72 4.60 289.2 2.2 45.49 84.21 94.03 4.91 289.4 2.6 51.44 119.14 129.70 5.28 289.6 3.0 52.14 159.14 170.58 5.72 289.8 3.5 48.64 199.09 211.28 6.10 290.0 3.9 45.14 235.23 247.73 6.25 290.1 4.4 41.64 267.61 280.37 6.38 290.2 4.8 38.14 296.26 309.25 6.50 290.3 4.7 34.64 321.19 334.40 6.60 290.4 4.5 31.14 342.46 355.84 6.69 290.4 4.3 27.64 360.07 373.60 6.76 290.5 4.1 24.15 374.08 387.72 6.82 290.5 3.8 20.65 384.50 398.22 6.86 290.6 3.6 17.15 391.36 405.14 6.89 290.6 3.4 13.65 394.69 408.50 6.91 290.6 3.2 10.15 394.53 408.34 6.91 290.6 3.0 6.65 390.90 404.68 6.89 290.6 2.8 3.15 383.82 397.55 6.86 290.6 2.5 0.70 373.34 386.97 6.82 290.5 2.3 0.00 360.51 374.04 6.76 290.5 2.1 0.00 347.09 360.51 6.71 290.4 1.9 0.00 333.78 347.09 6.65 290.4 1.7 0.00 320.58 333.78 6.60 290.4 1.5 0.00 307.49 320.58 6.55 290.3 1.2 0.00 294.51 307.49 6.49 290.3 1.0 0.00 281.63 294.51 6.44 290.3 0.8 0.00 268.86 281.63 6.39 290.2 0.6 0.00 256.19 268.86 6.33 290.2 0.4 0.00 243.63 256.19 6.28 290.2 0.1 0.00 231.17 243.63 6.23 290.1 0.0 0.00 218.81 231.17 6.18 290.1 0.0 0.00 206.56 218.81 6.13 290.0 0.0 0.00 194.40 206.56 6.08 290.0 0.0 0.00 182.46 194.40 5.97 289.9 0.0 0.00 170.78 182.46 5.84 289.9 0.0 0.00 159.34 170.78 5.72 289.8 0.0 7 290.6 5 Q w Cl) ..J 0 <( 0.. I-0 g g: cfs 0.00 1.05 3.10 5.49 6.09 6.77 7.52 8.33 9.20 10.01 10.60 11.17 11.21 11.10 10.97 10.83 10.67 10.49 10.30 10.10 9.88 9.65 9.40 9.14 8.87 8.60 8.32 8.05 7.78 7.51 7.24 6.97 6.70 6.43 6.23 6.18 6.13 6.08 5.97 5.84 5.72 11 D.A. # '° w 33.5 11.0 cfs 0.0 3.1 6.1 9.2 12.2 15.3 18.4 21.4 24.5 27.5 30.6 33.5 32.0 30.4 28.9 27.4 25.8 24.3 22.8 21.2 19.7 18.2 16.7 15.1 13.6 12.1 10.5 9.0 7.5 5.9 4.4 2.9 1.4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 33 9916-dra.xls Exhibit D-1 (!) ..J z <( I= I-!!? g~ cfs 0.00 3.06 6.12 9.18 12.24 15.30 18.36 21.42 24.48 27.54 30.61 33.49 31.96 30.43 28.90 27.37 25.84 24.31 22.78 21.25 19.72 18.19 16.66 15.13 13.60 12.07 10.54 9.01 7.48 5.95 4.42 2.89 1.36 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 33 D.A. # D.A. # ~ &. c Q. w "' z ... gi m 'Cl ... :E 'Cl c >-0 0 :x: Cl. (.) Qp 31.1 Tc 7.8 inc 1.0 Time cfs cfs 0.0 0.0 0.0 1.0 4.0 4.0 2.0 8.0 8.0 3.0 12.0 12.0 4.0 16.0 16.0 5.0 20.0 20.0 6.0 24.0 24.0 7.0 27.9 27.9 8.0 30.7 30.7 9.0 28.7 28.7 10.0 26.7 26.7 11.0 24.8 24.8 12.0 22.8 22.8 13.0 20.8 20.8 14.0 18.8 18.8 15.0 16.8 16.8 16.0 14.8 14.8 17.0 12.8 12.8 18.0 10.8 10.8 19.0 8.8 8.8 20.0 6.8 6.8 21.0 4.8 4.8 22.0 2.8 2.8 23.0 0.8 0.8 24.0 0.0 0.0 25.0 0.0 0.0 26.0 0.0 0.0 27.0 0.0 0.0 28.0 0.0 0.0 29.0 0.0 0.0 30.0 0.0 0.0 31.0 0.0 0.0 32.0 0.0 0.0 33.0 0.0 0.0 34.0 0.0 0.0 35.0 0.0 0.0 36.0 0.0 0.0 37.0 0.0 0.0 38.0 0.0 0.0 39.0 0.0 0.0 40.0 0.0 0.0 PEAK FLOWS 31 31 0.00 indicates inital condition EXHIBIT "D-1" PROPOSED DETENTION POND ROUTING STEEPLECHASE PHASE SIX Pond Routing EVENT= 25 D.A. # c a + c 32 c .2 .... ~ + .... .... 'Cl ~ c ::!2 + + c + C GI VI ~ c 0-;i .5 N a Cl. w 5.6 11.2 cfs cfs cfs cfs ft cfs 3.99 0.00 0.00 0.00 288.1 0.0 11.98 2.60 3.99 0.70 288.3 0.5 19.96 9.48 14.57 2.54 288.7 1.0 27.94 21.00 29.44 4.22 289.0 1.5 35.93 40.09 48.95 4.43 289.1 2.0 43.91 66.59 76.02 4.72 289.3 2.5 51.90 100.34 110.50 5.08 289.5 3.0 58.68 141.19 152.23 5.52 289.7 3.5 59.48 187.82 199.87 6.03 290.0 4.0 55.49 234.81 247.30 6.25 290.1 4.5 51.50 277.45 290.29 6.42 290.2 5.0 47.50 315.79 328.95 6.58 290.4 5.5 43.51 349.85 363.29 6.72 290.5 5.4 39.52 379.68 393.36 6.84 290.5 5.1 35.53 405.30 419.20 6.95 290.6 4.9 31.54 426.75 440.83 7.04 290.7 4.6 27.54 444.07 458.29 7.11 290.7 4.4 23.55 457.28 471.61 7.16 290.8 4.1 19.56 466.43 480.84 7.20 290.8 3.9 15.57 471.55 485.99 7.22 290.8 3.6 11.58 472.66 487.11 7.23 290.8 3.4 7.58 469.80 484.24 7.22 290.8 3.2 3.59 463.01 477.39 7.19 290.8 2.9 0.80 452.32 466.61 7.14 290.8 2.7 0.00 438.94 453.12 7.09 290.7 2.4 0.00 424.88 438.94 7.03 290.7 2.2 0.00 410.93 424.88 6.97 290.6 1.9 0.00 397.10 410.93 6.92 290.6 1.7 0.00 383.38 397.10 6.86 290.6 1.4 0.00 369.78 383.38 6.80 290.5 1.2 0.00 356.28 369.78 6.75 290.5 0.9 0.00 342.90 356.28 6.69 290.4 0.7 0.00 329.63 342.90 6.64 290.4 0.4 0.00 316.46 329.63 6.58 290.4 0.2 0.00 303.40 316.46 6.53 290.3 0.0 0.00 290.45 303.40 6.48 290.3 0.0 0.00 277.61 290.45 6.42 290.2 0.0 0.00 264.87 277.61 6.37 290.2 0.0 0.00 252.24 264.87 6.32 290.2 0.0 0.00 239.71 252.24 6.27 290.1 0.0 0.00 227.28 239.71 6.21 290.1 0.0 7 290.8 5 c w VI ..J 0 <( Cl. ... 0 g g: cfs 0.00 1.19 3.54 5.71 6.42 7.20 8.06 9.00 10.00 10.72 11.39 12.05 12.11 11.98 11.84 11.68 11.50 11.31 11.10 10.87 10.63 10.37 10.09 9.80 9.49 9.19 8.88 8.58 8.27 7.97 7.66 7.36 7.05 6.75 6.53 6.48 6.42 6.37 6.32 6.27 6.21 12 D.A. # '° w 38.3 11.0 cfs 0.0 3.5 7.0 10.5 14.0 17.5 21.0 24.5 28.0 31.5 35.0 38.3 36.5 34.8 33.0 31.3 29.5 27.8 26.0 24.3 22.5 20.8 19.0 17.3 15.5 13.8 12.0 10.3 8.5 6.8 5.0 3.3 1.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 38 9916-dra.xls Exhibit D-1 C) ..J z <( I= ... !!? g~ cfs 0.00 3.50 6.99 10.49 13.99 17.49 20.98 24.48 27.98 31.47 34.97 38.27 36.52 34.n 33.02 31.27 29.53 27.78 26.03 24.28 22.53 20.78 19.03 17.29 15.54 13.79 12.04 10.29 8.54 6.80 5.05 3.30 1.55 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 38 EXHIBIT "D-1" PROPOSED DETENTION POND ROUTING STEEPLECHASE PHASE SIX D.A. # D.A. # Pond Routing EVENT= 50 D.A.# :u: c: ~ c a Q. w + "' z c: -c: .. ~ 32 .!2 gi iii ..... "C + ..... ..... "C J .. ~ c: + -g, c: + c: + c: Cll 0 0 I/) i!l a 0-;1; ::c CL. (J .E N CL. w Qp 35.2 6.3 Tc 7.8 11.2 inc 1.0 Time cfs cfs cfs cfs cfs cfs ft cfs 0.0 0.0 0.0 4.51 0.00 0.00 0.00 288.1 0.0 1.0 4.5 4.5 13.52 2.93 4.51 0.79 288.3 0.6 2.0 9.0 9.0 22.54 10.71 16.46 2.87 288.7 1.1 3.0 13.5 13.5 31.55 24.72 33.25 4.26 289.1 1.7 4.0 18.0 18.0 40.57 47.26 56.28 4.51 289.2 2.2 5.0 22.5 22.5 49.58 78.15 87.83 4.84 289.4 2.8 6.0 27.0 27.0 58.60 117.21 127.73 5.26 289.6 3.4 7.0 31.6 31.6 66.26 164.26 175.80 5.77 289.8 3.9 8.0 34.7 34.7 67.16 218.17 230.52 6.18 290.1 4.5 9.0 32.5 32.5 62.65 272.53 285.33 6.40 290.2 5.1 10.0 30.2 30.2 58.15 321.97 335.18 6.61 290.4 5.6 11.0 27.9 27.9 53.64 366.54 380.12 6.79 290.5 6.2 12.0 25.7 25.7 49.13 406.27 420.18 6.95 290.6 6.1 13.0 23.4 23.4 44.62 441.20 455.40 7.10 290.7 5.8 14.0 21.2 21.2 40.12 471.38 485.83 7.22 290.8 5.5 15.0 18.9 18.9 35.61 496.84 511.50 7.33 290.9 5.3 16.0 16.7 16.7 31.10 517.63 532.45 7.41 290.9 5.0 17.0 14.4 14.4 26.59 533.77 548.73 7.48 291.0 4.7 18.0 12.2 12.2 22.09 545.32 560.36 7.52 291.0 4.4 19.0 9.9 9.9 17.58 552.33 567.41 7.54 291.0 4.1 20.0 7.7 7.7 13.07 554.81 569.90 7.55 291.0 3.8 21.0 5.4 5.4 8.56 552.79 567.88 7.54 291.0 3.6 22.0 3.2 3.2 4.06 546.31 561.36 7.52 291.0 3.3 23.0 0.9 0.9 0.90 535.39 550.37 7.49 291.0 3.0 24.0 0.0 0.0 0.00 521.44 536.30 7.43 291.0 2.7 25.0 0.0 0.0 0.00 506.70 521.44 7.37 290.9 2.4 26.0 0.0 0.0 0.00 492.08 506.70 7.31 290.9 2.2 27.0 0.0 0.0 0.00 477.59 492.08 7.25 290.8 1.9 28.0 0.0 0.0 0.00 463.21 477.59 7.19 290.8 1.6 29.0 0.0 0.0 0.00 448.95 463.21 7.13 290.7 1.3 30.0 0.0 0.0 0.00 434.81 448.95 7.07 290.7 1.0 31.0 0.0 0.0 0.00 420.78 434.81 7.01 290.7 0.8 32.0 0.0 0.0 0.00 406.87 420.78 6.96 290.6 0.5 33.0 0.0 0.0 0.00 393.07 406.87 6.90 290.6 0.2 34.0 0.0 0.0 0.00 379.38 393.07 6.84 290.5 0.0 35.0 0.0 0.0 0.00 365.81 379.38 6.79 290.5 0.0 36.0 0.0 0.0 0.00 352.35 365.81 6.73 290.5 0.0 37.0 0.0 0.0 0.00 339.00 352.35 6.68 290.4 0.0 38.0 0.0 0.0 0.00 325.76 339.00 6.62 290.4 0.0 39.0 0.0 0.0 0.00 312.62 325.76 6.57 290.3 0.0 40.0 0.0 0.0 0.00 299.60 312.62 6.51 290.3 0.0 PEAK FLOWS 35 35 8 291.0 6 0.00 indicates inital condition c w I/) ..J 0 ~~ 0 0:: i;;. CL. cfs 0.00 1.35 4.00 5.95 6.76 7.65 8.64 9.71 10.67 11.46 12.23 12.97 13.05 12.91 12.76 12.58 12.38 12.17 11.93 11.67 11.39 11.11 10.81 10.49 10.15 9.81 9.47 9.13 8.79 8.45 8.11 7.77 7.43 7.09 6.84 6.79 6.73 6.68 6.62 6.57 6.51 13 D.A. # '° w 43.4 11.0 cfs 0.0 4.0 7.9 11.9 15.8 19.8 23.7 27.7 31.6 35.6 39.5 43.3 41.3 39.3 37.3 35.4 33.4 31.4 29.4 27.5 25.5 23.5 21.5 19.5 17.6 15.6 13.6 11.6 9.7 7.7 5.7 3.7 1.8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 43 9916-dra.xls Exhibit 0-1 0 ..J z <( I= I-!:2 e r&'j cfs 0.00 3.95 7.91 11.86 15.82 19.77 23.73 27.68 31.64 35.59 39.55 43.28 41.30 39.32 37.35 35.37 33.39 31.41 29.44 27.46 25.48 23.50 21.53 19.55 17.57 15.59 13.62 11.64 9.66 7.69 5.71 3.73 1.75 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 43 D.A. # D.A.# 'It .c. Q Q. w ~ z 8' iii ... "C ~ -g. c 0 0 :c 0.. u Qp 39.4 Tc 7.8 inc 1.0 Time cfs cfs 0.0 0.0 0.0 1.0 5.1 5.1 2.0 10.1 10.1 3.0 15.2 15.2 4.0 20.2 20.2 5.0 25.3 25.3 6.0 30.3 30.3 7.0 35.4 35.4 8.0 38.9 38.9 9.0 36.4 36.4 10.0 33.9 33.9 11.0 31.4 31.4 12.0 28.8 28.8 13.0 26.3 26.3 14.0 23.8 23.8 15.0 21.2 21.2 16.0 18.7 18.7 17.0 16.2 16.2 18.0 13.7 13.7 19.0 11.1 11.1 20.0 8.6 8.6 21.0 6.1 6.1 22.0 3.5 3.5 23.0 1.0 1.0 24.0 0.0 0.0 25.0 0.0 0.0 26.0 0.0 0.0 27.0 0.0 0.0 28.0 0.0 0.0 29.0 0.0 0.0 30.0 0.0 0.0 31.0 0.0 0.0 32.0 0.0 0.0 33.0 0.0 0.0 34.0 0.0 0.0 35.0 0.0 0.0 36.0 0.0 0.0 37.0 0.0 0.0 38.0 0.0 0.0 39.0 0.0 0.0 40.0 0.0 0.0 PEAK FLOWS 39 39 0.00 indicates inital condition EXHIBIT "D-1" PROPOSED DETENTION POND ROUTING STEEPLECHASE PHASE SIX Pond Routina EVENT= 100 D.A. # c a + c 32 c .... ~ 0 + .... ; c + .... "C ~ + 32 c + c c 41 (/) ~ 0-• .E N a 0.. w co 7.1 11.2 cfs cfs cfs cfs ft cfs 5.06 0.00 0.00 0.00 288.1 0.0 15.17 3.29 5.06 0.88 288.3 0.6 25.29 12.02 18.46 3.22 288.8 1.3 35.40 28.69 37.30 4.30 289.1 1.9 45.51 54.91 64.09 4.59 289.2 2.5 55.63 90.48 100.43 4.97 289.4 3.2 65.74 135.20 146.11 5.46 289.7 3.8 74.34 188.86 200.94 6.04 290.0 4.4 75.35 250.58 263.20 6.31 290.2 5.1 70.29 312.80 325.93 6.57 290.3 5.7 65.24 369.49 383.09 6.80 290.5 6.3 60.18 420.70 434.73 7.01 290.7 7.0 55.12 466.48 480.88 7.20 290.8 6.9 50.07 506.86 521.60 7.37 290.9 6.5 45.01 541.91 556.93 7.51 291.0 6.2 39.95 571.72 586.92 7.60 291.1 5.9 34.89 596.33 611.67 7.67 291.1 5.6 29.84 615.77 631.23 7.73 291.2 5.3 24.78 630.06 645.60 7.77 291.2 5.0 19.72 639.25 654.84 7.80 291.2 4.6 14.67 643.35 658.97 7.81 291.3 4.3 9.61 642.40 658.01 7.81 291.3 4.0 4.55 636.43 652.01 7.79 291.2 3.7 1.01 625.46 640.98 7.76 291.2 3.4 0.00 611.04 626.47 7.71 291.2 3.1 0.00 595.70 611.04 7.67 291.1 2.7 0.00 580.45 595.70 7.62 291.1 2.4 0.00 565.30 580.45 7.58 291.1 2.1 0.00 550.23 565.30 7.53 291.0 1.8 0.00 535.25 550.23 7.49 291.0 1.5 0.00 520.40 535.25 7.43 290.9 1.2 0.00 505.67 520.40 7.36 290.9 0.8 0.00 491.07 505.67 7.30 290.9 0.5 0.00 476.58 491.07 7.24 290.8 0.2 0.00 462.21 476.58 7.18 290.8 0.0 0.00 447.96 462.21 7.13 290.7 0.0 0.00 433.82 447.96 7.07 290.7 0.0 0.00 419.80 433.82 7.01 290.7 0.0 0.00 405.90 419.80 6.95 290.6 0.0 0.00 392.11 405.90 6.90 290.6 0.0 0.00 378.43 392.11 6.84 290.5 0.0 8 291.3 7 Q w (/) ...J 0 <( 0.. I-0 0 0:: I-0.. cfs 0.00 1.52 4.49 6.20 7.12 8.14 9.25 10.47 11.37 12.26 13.13 13.97 14.06 13.91 13.73 13.50 13.26 13.00 12.73 12.44 12.14 11.82 11.48 11.13 10.77 10.41 10.05 9.69 9.33 8.97 8.59 8.21 7.83 7.46 7.18 7.13 7.07 7.01 6.95 6.90 6.84 14 D.A. # IO w 48.7 11.0 cfs 0.0 4.4 8.9 13.3 17.8 22.2 26.7 31.1 35.6 40.0 44.5 48.7 46.4 44.2 42.0 39.8 37.5 35.3 33.1 30.9 28.7 26.4 24.2 22.0 19.8 17.5 15.3 13.1 10.9 8.6 6.4 4.2 2.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 49 9916-dra.xls Exhibit D-1 (!) ...J z ~~ 12 ~ cfs 0.00 4.45 8.89 13.34 17.79 22.23 26.68 31.13 35.57 40.02 44.47 48.66 46.44 44.21 41.99 39.77 37.54 35.32 33.10 30.87 28.65 26.43 24.20 21.98 19.76 17.53 15.31 13.09 10.86 8.64 6.42 4.19 1.97 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 49 STEEPLECHASE PHASES~ 5 Year Event Hydrograph 35.00 -.--------------------------------------. 30.00 25.00 20.00 15 .00 10.00 5 .00 " ' '\. " '\. 0 .00 ~----+------+----+------+----""'---+-----r---....::.'----+-------! 0.00 5 .00 10.00 15 .00 20.00 Time(min.) 25.00 30.00 35.00 40 .00 --Pond --Qn+1 64 --TOTAL PROPOSED ---E5 6/21/99 Exhibit D-2 STEEPLEC HASE PHASE SIX 10 Year Event Hydrograph 40.00 -.--------------------------------------. 35 .00 30 .00 - 25.00 ~ ~ 20.00 a 15 .00 10.00 5 .00 --" " 0 .00 ~----+-----+----~----+---......... -+------1~-..::."--+-------1 0 .00 5 .00 10.00 15.00 20.00 Time(min.) 25 .00 30.00 35.00 40.00 --Pond --Qn+1 64 --TOTAL PROPOSED ---E5 6/21/99 Exhibit D-2 ~ ~ a STEEPLECHASE PHASE SIX 25 Year Event Hydrograph 45.00 -....-------------------------------------. 40 .00 35 .00 . 30.00 25 .00 20 .00 15.00 . 10.00 5 .00 . ---------------0 .00 ~----+------+----+------+---......... -+----l-----"'----+------1 0.00 5.00 10 .00 15 .00 20 .00 Time(min.) 25 .00 30 .00 35 .00 40.00 --Pond --Qn+1 64 --TOTAL PROPOSED ---ES 6/21/99 Exhibit D-2 STEEPLECHASE PHASE SIX 50 Year Event Hydrograph 50 .00 -..---------------------------------------. 45.00 40.00 35.00 30 .00 -J!! ~ 25 .00 a 20 .00 .. 15.00 . 10 .00 5 .00 . \. \. 0 .00 ~----+----+------+-----~--""'--+-------;--....:::"-~-------4 0.00 5.00 10 .00 15.00 20.00 Time(min.) 25 .00 30 .00 35.00 40 .00 --Pond --Qn+1 64 --TOTAL PROPOSED ---E5 6/21/99 Exhibit 0-2 STEEPLECHASE PHASES~ 100 Year Event Hydrograph 60 .00 -r------------------------------------, 50 .00 40 .00 - ~ ~ 30 .00 a 20 .00 - 10.00 ------- 0 .00 ~----+-----+------+------+-----""__,----+---.....:::"---+------! 0.00 5 .00 10 .00 15 .00 20 .00 Time(min .) 25 .00 30 .00 35 .00 40 .00 --Pond --Qn+1 64 --TOTAL PROPOSED ---E5 6/21/99 Exhibit D-2 1 .600 1 .400 1 .200 2" 1.000 cJ .!.. GI ~ 0 ii) 0 .800 0 .600 0 .400 0 .200 STEEPLECHASE PHASES~ Stage-Storage Curve 0 .000 +------..---=~!:_-----+------+-------+------+------+-------+------I 287 288 289 290 291 292 293 294 295 296 Elevation (msl) Exhibit D-3 STEEPLECHASE PHASES~ Stage-Discharge Curve O .OOO+-~~~~-Hlf--~~~-+-~~~~--~~~~--+-~~~~-+~~~~--t~~~~--i~~~~~t--~~~----t 287.0 288 .0 289.0 290 .0 291 .0 292 .0 293.0 294.0 295 .0 296 .0 Elevatlon (msl) Exhibit D-3 Item No . 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 Steeplechase Subdivision, Phase 6 Engineer's Estimate June 18, 1999 Description Unit Quant. Estimated Unit Price Water Line Construction 6" PVC Water Line, structural L.F . 1,194 19 .50 6 11 PVC Water Line, non-structural L.F . 1,612 12.20 6 11 Ductile Iron Pipe L.F . 108 25 .00 Fire Hydrant Assembly, Type I, 5' barrel EACH 1 1,800 .00 Fire Hydrant Assembly, Type I, 4' barrel EACH 1 1,800.00 6"x 45 deg. Bend EACH 4 140 .00 6" Gate Valve EACH 6 375 .00 6"x 13" Anchor Coupling EACH 6 110 .00 6"x6" Tee EACH 3 135 .00 Connect to existing 6" PVC EACH 5 250 .00 6"x l" Tapped Tee EACH 5 125 .00 1.5'' Type K Copper Water Ser. ts 10 ft ., 7 ft . avg. length) EACH 1 450 .00 1.5" Type K Copper Water Ser. (> 10 ft., 50 ft. avg. length) EACH 23 1,500.00 1" Type K Copper Water Ser. ts 10 ft., 5 ft. avg . length) EACH 6 450 .00 l" Type K Copper Water Ser. (> 10 ft., 54 ft. avg. length) EACH 3 1,500.00 Trench Safety (water line) L.F. 1,738 1.00 Water Line Subtotal Sewer Line Construction 6" PVC, ASTM D-3034, structural back.fill L.F . 278 24.20 6" PVC, ASTM D-3034, non-structural backfill L.F . 2,599 14 .50 6 11 PVC, D-2241, structural backfill L.F . 140 26 .50 6" PVC, D-2241, non-structural backfill L.F . 30 16.50 Standard Manhole, 0-5 ft . deep EACH 1 1,5 00 .00 Standard Manhole, 5-8 ft. deep EACH 8 1,5 20 .00 Standard Manhole, 8-10 ft . deep EACH 2 1,600 .00 Connect to Existing MH EACH 1 1,000 .00 4" PVC Sewer Service ts 10 ft ., 6' average) EACH 29 500.00 4" PVC Sewer Service(> 10 ft ., 51' average) EACH 18 1,500 .00 Trench Safety (sewer line) L.F . 3,047 2.00 Sewer Line Subtotal Total Estimated Construction Cost Page 2 of 2 Total 23,283 .00 19,666.40 2,700 .00 1,800 .00 1,800 .00 560 .00 2,250.00 660 .00 405 .00 1,250.00 625 .00 450.00 34,5 00 .00 2,700.00 4,500 .00 1,738 .00 $98,887.40 6,727 .60 37,685 .50 3,710 .00 495 .00 1,500 .00 12 ,160 .00 3,200 .00 1,000 .00 14 ,500.00 27,000 .00 6,094 .00 $114,072.10 $566,973.15 Item No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 Steeplechase Subdivision, Phase 6 Engineer's Estimate June 18, 1999 Description Unit Quant. Estimated Unit Price Paving Construction Mobilization Lump Sum 1 3 ,000 .00 Prepare Work Area Lump Sum 1 15 ,000 .00 Earthwork C.Y . 11,039 3 .75 1.5" HMAC Surface Course S.Y. 7,632 4 .00 6" Lime Stabilized Subgrade S.Y. 10,510 3.00 Extra Lime Ton 50 80.00 6" Crushed Limestone Base S.Y. 7 ,632 6.00 Layback Curb and Gutter L.F . 5,238 7.00 Concrete Apron, Type A S.F . 9,207 3.30 4" Sidewalk S.F 11 ,283 2.40 Sidewalk Ramps S.F 378 7.25 Signs, barricades, and traffic control Lump Sum 1 1,000.00 Paving Subtotal Drainage Construction 12" Reinf. concrete pipe, non-structural backfill L.F . 65 20.00 15" Reinf concrete pipe, structural backfill L.F . 84 26.00 15" Reinf. concrete pipe, non-structural backfill L.F . 129 22 .00 24" Reinf. concrete pipe, structural backfill L.F. 476 43.00 24" Reinf. concrete pipe, non-structural L.F . 27 38.00 30" Reinf. concrete pipe, structural backfill L.F . 204 68.00 Concrete drainage flume, 4' wide L.F . 638 15.20 1 O' Curb inlet EACH 3 2,800 .00 5' Curb inlet EACH 5 2 ,100 .00 24" x 45 deg . RCP bend EACH 1 1,5 00.00 Standard grate inlet EACH 1 2,400 .00 Sloped headwall for 12" RCP EACH 1 600 .00 Sloped headwall for 24" RCP EACH 1 1,2 00.00 Dry concrete rip rap S.Y. 34 18.50 Install 12" RCP through existing concrete headwall Lump Sum 1 2,000.00 Inlet protection EACH 8 50.00 Silt Fence L.F . 2,000 1.65 Construction exit for silt control S.Y. 30 7.30 Fibermulch seeding (40' all streets) S.Y. 13 ,050 0 .27 Trench safety (storm drain) L.F . 283 0.50 Drainage Subtotal Page 1 of2 Total 3,000.00 15 ,000.00 41 ,396.25 30,528.00 31,530.00 4 ,000 .00 45 ,792 .00 36,666.00 30,383 .10 27,079 .20 2,740 .50 1,000.00 $269,115.05 1,300.00 2,184 .00 2,838.00 20,468 .00 1,026 .00 13,872.00 9 ,697.60 8,400 .00 10 ,500.00 1,500.00 2,400 .00 600 .00 1,200 .00 629 .00 2,000.00 400 .00 3,300.00 219 .00 3,523 .50 141.50 $84,898.60 Date: November 19 , 1999 To : Amanda Hudec , Accounting From : Bob Mosley, City Enginee~ Subject: Completed Infrastructure from Private Development By the attached letter of completion for the Steeplechase Subdivision Phase VI de velopment, we have accepted the following improvements to the City of College Station infrastructure. Streets: 28 foot wide pavement Storm Sewer: 12 inch diameter RCP 15 inch diameter RCP 24 inch diameter RCP 30 inch diameter RCP Sanitary Sewer: 6 inch sanitary sewer main 4 foot diameter manholes Water: 6 inch main 2,022 linear feet 65 linear feet 213 linear feet 503 linear feet 204 linear feet 3,047 linear feet 14 each 2,912 linear feet Based upon our previous meeting , Development Services has begun providing us engineering estimates with the private development plans. This will allow us to identify the cost of the infrastructure in the future. We do not have the engineering estimates for this project. This memo provides a record of the infrastructure acceptance, however, the engineering cost estimates for this infrastructure will be required from Development Services . c : Natalie Ruiz, Development Coordinator John Logan, Engineering Technician Missy Green , Staff Assistant Date: November 19, 1999 To : Amanda Hudec, Accounting From: Bob Mosley, City Enginee~ Subject: Completed Infrastructure from Private Development By the attached letter of completion for the Steeplechase Subdivision Phase VI development, we have accepted the following improvements to the City of College Station infrastructure. Streets: 28 foot wide pavement Storm Sewer: 12 inch diameter RCP 15 inch diameter RCP 24 inch diameter RCP 30 inch diameter RCP Sanitary Sewer: Water: 6 inch sanitary sewer main 4 foot diameter manholes 6 inch main 2,022 linear feet 65 linear feet 213 linear feet 503 linear feet 204 linear feet 3, 04 7 linear feet 14 each 2,912 linear feet Based upon our previous meeting, Development Services has begun providing us engineering estimates with the private development plans. This will allow us to identify the cost of the infrastructure in the future. We do not have the engineering estimates for this project. This memo provides a record of the infrastructure acceptance, however, the engineering cost estimates for this infrastructure will be required from Development Services. c : Natalie Ruiz, Development Coordinator John Logan, Engineering Technician Missy Green , Staff Assistant NOV-12-99 FRI 12:0 8 PM ·-··-·-·-· ---· HQX-12-99 PR! 11 :45 AM ;Jot..~ L.,'Jo.Ai"-" FAX NO. 254 75 22305 f AX KO. 254?522305 LETTER OF COMPLETION P. 2 P. 2 CITY ENGJN~!R ClTY OF COLLEGE STAtioN COLLEGE STATION, TEXAS :Oear Sir: RE: COMPLETIO~ Of _____ _ s:+'-e (?\re L.."'41 fh,M' o "' The purpCJSe o! out letter la to re~uest that the !ollowi.ng listed. imp\'o.,..era~nts. be approved 3t\d accept1111d ar; bei.ni; constructed. under citY iMpcction and complQt.ed :iccording to plans and specifications as approved. anc raqujred. by the City oC College Static~, Texas. This appx:oval and acceptance by the City is re~ues~qd. in order that we. m:ay 6.nalize any sub- ~ontracts and to affirm their wa.rranty on the work. This at'pl.'ove.l and s.ccept21.nce by the City of the lmptonmenu list:ed below does hue.by void the letter of ~arantee !or the listed improvements on :hi-above referencd project. 6t"t.L ~ \,;.,"'> L'-V''\> The one year "'arranty is her by affirmed and a~eed to by \)<ve Ip '"'Mi ~ r i7 and b:;.r their tSub-contn.ctors as ind~cllted by signature& below. WORK COMPLETED .5±.t.td c.., ~-k.l.!t-Tt~ u+tltJ 1 ~s~ Owner: 'B~'2b$ ''"fawtD Lr;wp Ds..vt<-~ W\ t:h,+-CR Ii?-p Addre5~: L.\loe> i;,...,~-k~u.+~ ACCEPTANC~ & APPROVAL l.lAIE _jltl:.1 l+,l:z1~;7.1=./4.;L:t...2 --J;. ;q · 77 rf' ~r. ___:t!_f ft:./-::t.l~.::Zt:./::i1~)"f=__ I/. 11 · q ~ tJifYf Contraetot' Yoµ.140. Cn1 ~1'1"11.<:. I Addce6&: :Po Jk>6 (pJ cJ. t f" :-t "'' , =rx. . 11 e, 0 (o Si~"'""""~~ { -I -( McCLURE ENGINEERING, 1722 Broadmoor, Suite 21 Bryan, Texas 77802 (409) 776-6700, Fax: (409) 776-6 INC. \...f '-1( \ 0 699 TRANSMITTAL LETT ER TO: Mr. Jeff Tondre, P.E. Date: 7/30 /99 Proj. # Development Services Department Attn: CITY OF COLLEGE STATION RE: STE EPLECHASE, PHASE SIX We are sending you the following: ~ Attached D Under Sep arate Cover Via: D Invoice D Prints ~ Plans D Contractor Invoice D Bid Books D Specifications D Change Order D Contracts ~ Other Cost Estimate ----------- Copies Date Desc ription 6 Sets of construction plans, revised per redlined comments 1 Set of redlined construction plans 1 Copy of the Engineer's Construction Co st Estimate 1 Corrected and punched sheet from the Drai nage Report (to be placed in your copy) These are transmitted as follows ~ For Approval D Approved as Submitted 3 Sets to be approved and returned to me D For your use D Approved except as noted 3 ---Copies fo r your files d Prints D As Requested ~ Resubmitted after Revisions Correcte --- D For Review Comments D Other REMARKS: PLEASE CALL WHEN OUR SETS OF THE PLANS ARE READY T 0 BE PICKED UP . THANX! 1f3Jqf /1':0 S-(/))) ~,f ~R. McClure, P.E., R.P.L.S. COPY TO: SIGNED: Pres ident - DEVELOPMENT PERMIT PERMIT NO. 661 STEEPLECHASE SUBDMSION VI FOR AREAS OUTSIDE THE SPECIAL FLOOD HAZARD AREA RE: CHAPTER 13 OF THE COLLEGE STATION CITY CODE SITE LEGAL DESCRIPTION: SITE ADDRESS: OWNER: Brazos Triad Land Development Partnership 4100 Highway 6 South Bryan, Texas 77802 823-8111 DRAINAGE BASIN: BEE CREEK TYPE OF DEVELOPMENT: TIDS PERMIT IS VALID FOR CONSTRUCTION AS PER APPROVAL PLANS PENDING APPROVAL OF FINAL PLAT PER THE PLANNING &ZONING COMMISSION. 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. 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. Any trees required to be protected by ordinance or as part of the landscape plan must be completely fenced before any operations of this permit can begin. 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 con struction , erosion , and sedimentation shall not be deposited in city streets, or existing drainage faciliti es. I hereby grant this permit for development of an area outside the special flood hazard area. All development shall be in c dance with the plans and specifications submitted to and approved by the Ci ty Engineer in the d v lopm nt p ermit application for the above named project and all of the codes and ordinances of the i C l eg e Station that apply. Date B-4-~/ Date ,r--, I I 'I ,_·, .~f I I /-! l I ~\16\ \ ASll lk BHO!~~ "f!!'Gf!!!!,.EHIIVG1 IIVC. l P.O. Box 10838, College Station, Texas 77842 409-694-2123 Fax: 409-694-3694 --------------- July 21 , 1999 Veronica Morgan Asst. City Engineer City of College Station P.O. Box 9960 College Station, TX 77842 Re: Plans Check for Steeplechase Phase 6 I have reviewed the construction plans that were provided to me on the above referenced subdivision. The plans include the items called for on the attached checklist. The information that was provided for review did not contain any engineers estimates. There are no fire flows provided for this phase. I have a question in reference to the drainage flume at the back of lots 15 -22, but I will discuss that with Jeff when I bring the plans back to City Hall. s~~({J2 Elrey B. Ash Ash & Browne Engineering, Inc • ' Review Date: __________ _ Reviewer: £ r:J s ~ Public Water Infrastructure ~crall utility layout sheet -showing casements (platted or by separate instrument) O If separate instrument casements are needed -do not approve until we get them recorded 0 TXDOT permits needed? JZ Sealed and Signed O Engineers Estimates Linet .P'Pipe material fi Pipe sizes (allowable .... 6,8,12,16,18 -note no 10" approved) ·',Z'_ Depth (4'+)(min,max) t Separation distances (TNRCC) ~ All utilities in plan & profile w/sizes and type '!£ Private vs. Public line distinction '1,, Wyes not past property line (so meter can be within ROW/easement) ~ Max # of connections for size waterline (TNRCC) ~ Pipe deflection (noted as¥., degrees, radius -with begin/end curve, not atjl) ~ Grades -existing and proposed (centerline, right and left) shown in pro.file '?£ Full TNRCC compliance 'F( Conflicts with other utilities shown 'l Labels on all major items in plan & pro.file (crossings) ~ SiuJLocation sufficient for overall City needs/masterplan /6. Minimize dead-end lines & Lines located in PUFJR.OW ~ Stationing on all fi~ and taps YJ!m Ji Valve spacing (SOO') ~ Valves -i)'stem isolation 'tJ Valves -at hydrant AJA 0 Backflow prcvcntcr&I' and check valves uses as necessary (@irrigation/fire sprinlder/poolslhu.ards) IJlt 0 Blowoffs (F1I ok too) @ end of dead end lines *D Air release valves at all major high points Fire Hydrants A Fire hydrant spacing (Coverage) ?( Yue hydrant location (relative to curb) jf Fi.re hydrant -detail/type specified Fi.re flow calculations provided Service Linet /1' Service lines -materials and size specified from main to meter µ"' Services provided to all lots to a point beyond sidewalks on both sides of street 1 oll:Z ------------ Project Name:. __________ _ Review Date:. __________ _ Reviewer :. ___________ ~ Public Water Infrastructure( cont.) Details ~ Standard Details noted or included (referenced as city of CS Standard Details) ~ Details for all non-standard items (included/ok) (not on CS Std. detail sheet) A All MJ valves and fittings ~ Thrust blocking ~ Easement width adequate if Embcdmcot details (specify option) J1 Trench safety if deeper than S' % Erosion control notes The following items are variances to the College Station public waterline standards: 2 ol12 Project Name: _________ _ Review Date:, __________ _ Reviewer: ___________ _ Public Wastewater Infrastructure General ~ Overall utility layout sheet • showing casements (platted or by separate instrument) O If separate instrument easements are needed -do not approve until we get them recorded D TXDOT permits needed? Ji Sealed and Signed 0 Enginccrs Estimates Lines Ji. Pipe material 't Pipe sizes (allowablc .... 6,8,10,12,15,18) ii: Depth (min cover) rt_ Depth (cxa:ssive) ~ Separation distances (INRCC) JI: All utilities in plan & profile w/sizcs and type ~ Private vs. Public line distinction Z Wycs not past property line 0 Grades-existing and proposed (centerline, right and left) shown in profile J!,, Flowlines (specified/labeled) "yf Full TNR.CC complianoc ~ Conflicts with other utilities shown (min. l 'clear I except water -see TNRCC) %_ Labels on all major items in plan & profile (crossings) X SizelLocation sufficient for overall City needs/masterplan } i:= ~t:!:' and services Manholes ft Lines end in MH r/ Manhole spacing (max SOO') JZ. Manhole dia"V'ter based OD depth and line size ( 4 'vs.S' diam.) ft. Manhole covers -"watertight" cover if in floodplain ft Manholes ~ible from public ROW/easement ".%. Manholes at change of alignment, grade or size f Drops through manhole (INRCC) Service Linq ¢ Service lines -materials and li7.c specified from main to end A Services provided to all lots to a point beyond sidewalks on both sides 'tf Services ~ 6" enter at manholes 3 af12 ......... Project Name: __________ _ Review Date: __________ _ Reviewer. ___________ ~ Public Wastewater Infrastructure( cont.) Details ~dard Details noted or included (referenced as city of CS Standard Details) j!_ Details for all non-standard items (include/ok) (not on CS Std. detail sheet) p Easement width adequate }a_ Embedment details (specify option) S Trench safety if deeper than s• ~ Erosion control notes The following items are variances to the College Station public wastewater standards: .Coll2 Review Date: __________ _ Reviewer: t , fl £ Public/Private Streets ~ P". Overall plan layout of streets Pf Plan and profile for all streets ,tJA 0 If separate instrument easements arc needed -do not approve until we get them recorded NA D TXDOT permits needed? Ji Sealed and Signed 0 En~ &timates Street Paving Plan j!. Sidewalk locations per subdivision regs. µ Curb inlets shown ~ 0 Culverts location Ji Storm Sewer location /JA 0 Bike lanc&'striping rJ Street widths Jli Right of way/easement width $ Radius sizes for (cwb returns, median noses , turn lanes, etc) W Curb and Gutter delineated 0 Street Names Ji Plan and Profile -stationed { ~ 'if Benchmarks referenced Centerline stationing info. (PC, PI, PT, other angklbearing) Cwve info (length, tangent, radius, angle) Min. and Max. grades Radii SidewaJkJ %_ Width g. Location X-slope X-section (bc'Ming, thi~ steel) -see details ~ ~ Handicap ramps (location, x-slope, long slope, landing width, sideslopes, no cwb returns on ramps) Paving Profile Ji All proposed and existing utility conflicts shown with size and flowline µ' Profile of existing ground (centerline, right and left) ~ Location of proposed storm sewers with size and grade ~ Top of cwb profile with grades '?1 Proposed paving profile 'al12 Public/Private Streets(cont.) Details Jt Sidewalk x-sec:tion ,%_ Tic between sidewalk and back of cwb (if applicable) )a: Paving x-section w/crown dimensioned ~ Handicap ramps )if Curb and gutter Project Name: __________ _ Review Date:, _________ _ Reviewer: ___________ ~ The following items arc variances to the College Station street standards: 6a{12 Project Name: _________ _ Review Date: __________ _ Reviewer:. ___________ ~ Public/Private Storm Sewer General ~ Overall plan layout of drainage facilifies (can be shown on street plan) showing casements O If separate instrument casements arc needed -do not approve until we get them recorded ¢ Plan and profile for all storm sewers 0 TXDOT permits needed? pf Scaled and Signed 0 Engineers Estimatec Storm Sewer/Culverts ~ Pipe material (RCP = storm. RCPorCMP = culvert) ;sef, Pipe sizes labeled (see pg.47 DPDS) j!f Sizc/Locat.ion sufficient for overall City necds/masterplan flf. Depth (min cover) 'If Depth (exccs&vc) ~ All utilities in plan & profile w/sizes and type 1. 'Jf_ Private vs. rui>lic line distinction ~ Street~ -existing and proposed (centerline, right and left) shown in profile '!£ Flowlines (sj>ecl.fiedllabeled) '~ Conflicts with other utilities shown ]!1 Labels on all major items in plan & profile .1 Located within drainage casement or right-of-way (specify width) (public only) l'l Easement width adequate per DPDS ~ Stationing ibown ~ Outfall location (if open, is rip-rap needed per design calcs) ~ Does it match drainage report (sizes, inlets, etc) 0 Hydraulic Grade Linc (on plan or in drainage report) Junction Boxes/Manholes/Inlets Lines end in JBIMH JBIManhole spacing (see pg 47 DPDS) JBIManholes ~ible from public ROW/easement JB/Manholes at change of alignment, grade or si7.e Drops through inlet/manhole/JB (see pg 48 DPDS) Curb inlets shown and labeled (referenced to drainage report) ~ Standard Details noted or included (referenced as city of CS Standard Details) Details for all non-standard items (included/ok) (not on CS Std. detail sheet) Emhedment details (specify option) Trench safety if deeper than 5' Erosion control notes Culverts (SET) Inlet/I-Box or manhole details (manhole ~) 7oll2 Review Date: __________ _ Reviewer. ___________ ~ Public/Private Storm Sewer (cont.) Channels ,ti Cross sect.ions with side slopes -meets DPDS A Channel Liner • per DPDS ~ Longitudinal slope (0.4% min.) 0 Rip Rap needed? !!S!!i!! Standard Details noted or included (referenced as city of CS Standard Details) Details for all non-standard items (include/ok) (not on CS Std. detail sheet) Erosion control notes Detention System X Side slopes ft Bottom slopes t Grading plan % Low flow flume 'ff Outlet Structure shown -corresponds to drainage report ,Z Inlet Structure shown -corresponds to drainage report )?[ Emergency spillway -corresponds to drainage report d o Rip Rap if high velociti~ exist at inlet or outlet -lengthlwidth/siu/details Ji. Flowlines at inlet and outlet f Complies with drainage report Details 'r1 )IJ Standard Details noted or included (referenced as city of CS Standard Details) 17 Details for all non-standard items (included/ok) (not on CS Std. detail sheet) 'Ii" Erosion control notes ~ Inl«.~ µ Outlet structwe The following items arc variances to the College Station drainage standards: lall2 Project Name:. __________ _ Review Date: __________ _ Reviewer:. ___________ _ Drainage Reports Location ¢' Primary drainage system identified rt Swrounding developments shown rj Local &trccts, drainage systems shown Descriotion ~ Acreage of project ,¥! Land cover described JZ. Primary/secondary systems within property shown 'Ji General ~ption Drainage Basins if' R.cfercnccs to FIRMs if applicable jef_ Secondary system flow patterns and impact of development on existing system J Proposed pathways to Primary system shown or described Design Criteria · Ut:1 0 Any deviation from standards being requested? /f. Discussion of site constraints and capacities (streets, existing structures, etc.) Jt Discuss ion of any applicable previous drainage studies and how this plan will affect it Hydrologic Criteria Ji, Rainfall/runoff calculation method described and calculations provided 'ft. Detention discharge I storage calculation method I calculations A Storm rccurrencc intervals used ff Disawion of other drainage facility design criteria used if not referenced in Standards Hydaulic Criteria JS Identify capacity of systems used 11' Specify velocities at critical points in system ~ Identify detention I retention outlet and routing ft Discussion of other drainage facility design criteria used not referenced in Standards Drainage Facility Dgign .Jt Disa&ss drainage pattcma I flows (pre vs. post) 'r/ Arc they draining water onto another property owner1 • if so , is it where the water flowed before? and is it not more than what flowed there before? and no faster than it flowed before? Ji_ Discuss erosion control measures employed "/[ Discuss detention pond design (sideslope, low flow channels, outlet works, freeboard, emergency spillway) ~ 0 Discuss maintenance access and responsibilities Conclusions Jl Verify compliance with DPDS (signed and sealed certification) jlJ Explain effectiveness of improvements with regard to controlling discharges of S -100 year storm by a) Detaining b) Accommodating runoff in existing I proposed casements or ROW discharging into primary system c) Combination of a & b h(l2 Project Name: __________ _ Review Date:. __________ ~ Reviewer: ___________ _ Drainage Reports(cont.) Appendicg Ji, R.cfercru:cs (all criteria and technical infonnation used) 'yf Hydrologic computations ft_ Land use assumptions for adjacent property A Minor/major storm runo1f' at specific points 'ff Historic/fully developed runoff specific points pf Hydrographs at critical points jt HyJlraulic computations fZ_ Culvert capacities (headwater and tailwater assumptions) )!. Storm sewer capacities ~ Street capacities A Storm inlet capacities (inlet control rating) 'If. Open channel design f Detention area I volume capacity I outlet capacity Attached Drawings £ Location map with drainage patterns t Floodplain map if any Ji: Drainage plan with topo (existing and proposed with arrows if needed) 'ff Details of outlet structures 10 ol12 Project Name: __________ _ Review Date:. __________ ~ DEVELOPMENIPERMIT 1. Application Fee ($100) 2. Application 3. Erosion Control Plan 4. EP A/NOI (> 5 acres) 5. Public Infrastructure Inspection Fee ($300) 6. Drainage Report 7. HOA Covenants for maintenance of detention/retention ponds 8. Easements Dedicated (separate instrument) 9. TXDOT permits is.med 10. Engineer'& Fstjmat~ ( 14 nccessacy for rough grading/clearing ....... all others nccessacy for full permit) 11 al'l2 .. Project Name: __________ _ Review Date: __________ _ Reviewer: ___________ ~ TXDOT PERMIT CHECKLIST 0 Permit signed (Utility or Driveway) by owner 0 Set or excerpts of construction plans of what is proposed within ROW 0 Traffic Control Plan (TMUTCD) 0 Drainage Calculations (if applicable) For City Uae O Sign permits 0 Attach cover letter 0 Submit in triplicate to TxDOT 12 ol'l2 ~~ ~ © ~Tw ~ ~ \Qee,\_ ' 6/1,. w MAR 1 8 1 0 0 0 w '-I~ McCLURE ENGINEERING, INC. --r- 8 -Y ----+------ March 16, 1999 Mr. Lawrence Carter Public Utilities Distribution Supervisor City of College Station P.O. Box 9960 College Station, TX 77842 RE: Steeplechase Offset Sewer Analysis Dear Lawrence With the construction of phases Two through Six of Steeplechase Subdivision, we need to construct an o:ffsite sewer line which will in the future function as one of your trunk lines . Attached please find the drawing and calculations showing the required capacity and location of this line. We have proposed an 18" line in the South Fork of Bee Creek Tributary "B." Please note that the City of College Station Comprehensive plan shows a new 18" line in Bee Creek Tributary "A" apparently to service part of this area. Because this area drains to the South Fork of Bee Creek Tributary "B" and development is occurring in that watershed it seems logical to locate this line there. We already know that the lines downstream of this location are inadequate for ultimate development, as was pointed out in the Christine Lane Sewer Line Project. Also, there is potential for an additional impact to the downstream system should it be demonstrated in the West Side Utility Study that there is an advantage to pumping the westside area into this system. The downstream system definitely should be monitored and upgrade when practical. sre e ly /{;J J. Mitchell, P .E. C ·ef Design E ngineer xc Jeff Tondre, City of College Station 1722 Broadmoor, Suite 210 • Bryan , Te xas 77 802 • (409) 776 -67 00 • FAX (409 ) 77 6-6699 DEVELOPMENT PERMIT PERMIT N0.661 STEEPLECHASE PHASE VI FOR AREAS OUTSIDE THE SPECIAL FLOOD HAZARD AREA RE: CHAPTER 13 OF THE COLLEGE STATION CITY CODE SITE LEGAL DESCRIPTION: SITE ADDRESS: STEEPLECHASE SUBDIVISION OWNER: BRAZOS TRIAD LAND DEVELOPMENT PARTNERSHIP 4100 HWY. 6 SOUTH BRYAN, TEXAS 77802 DRAINAGE BASIN: BEE CREEK TRIB A TYPE OF DEVELOPMENT:TIDS PERMIT IS VALID FOR ROUGH CUT OF STREET ALIGNMENTS. NO APPROVED PLANS AS OF TIDS DATE 7-15-99 OWNER AND CONTRACTOR ARE PROCEEDING AT THEIR OWN RISK. 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. 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. Any trees required to be protected by ordinance or as part of the landscape plan must be completely fenced before any operations of this permit can begin. 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 stre ets, or existing drainage facilities. I hereby grant this permit for development of an area outside the special flood hazard area. All dev, opment shall be in accordance with the plans and specifications submitted to and approved by the Ci ngineer in the development permit application for the above named project and all of the codes rdinance th City of College Station that apply. Da j$ Contractor Date SUPPLEMENTAL DEVELOPMENT PERMIT INFORMATION Application is hereby made for the following development specific site/waterway alterations: ACKNOWLEDGMENTS: L ---------------~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 of the City of College Station. Texas City Code. Chapter 13 and its associated Drainage Policy and Design Standards. 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. Property Owner(s) Contractor CERTIFICATIONS: (for proposed alterations within designated flood haz.ard areas.) A. L certify that any nonresidential structure on or proposed to be on this site as part of this application is designated to prevent damage to the structure or its contents as a result of flooding from the 100 year storm. Engineer Date B. L certify that the finished floor elevation of the lowest floor. including any msement, of any residential structure. proposed as part of this application is at or above the base flood elevation established in the Jatest Federal Insurance Administration Flood Hazard Study and maps. as amended. Engineer Date -'''''''' -~~€. OF :,.~ ,, ,;"""".,.. •••••• ••••• :.t-.., •• c. L Mtt..lllliiL f?. M(!, eLJJtt.c • certify that the alterations or development covered by uGS ~ ~~ c.S' ,,, diminish the flood~g ~ity ~f the waterway a~joining or cross~g this permitted site and that su#,!tlr:!!!?~ ....... ~ ;.i development are consistent with reqwrements of the City of College Station City Code. Chapter 13 con~~fE I fl~oodways an~d offl~y fringes. '~d~:~·32:;4(i·~::w ~ ~ ~1~0/91 •t(-~f.g_~~rr-.~~··;~ En . Date \\8\:10NAL ~t--~,~- D . L do certify that the proposed alterations do not raise the level of the 100 year flood above elevation established in the latest Federal Insurance Administration Flood Hazard Study. Engineer Date Conditions or comments as part of approval:----------------------.......----- ·n accordance with Chapter 13 of the Code of Ordinances of the City of College Station. measures shall be taken to insure that debris .com 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. FINAL PLAT APPLICATION FNI.PAPP.DOC JflS/99 3of3 / R..10 3li~ ,/ ~ ~OT11 R_qo·175 R. I o 'f:6;).. It I tJ ~'6'!l FOR OFFICE USE ONLY P&ZCASENO.: --:/8 DATE SUBMI'ITED: gq ... CC:02..1 ! (DP} ro .-93 /l to 3'1A /{ to~lt~ v FINAL PLAT APPLICATION qq--33 (check one) Minor __ Amending ~inal __ Vacating __ Replat The following items must be submitted by an established filing deadline date for P & Z Commission consideration. MINIMUM SUBMITIAL REQUIREMENTS: .,./"Filing Fee of$200.00. /Development Permit Application Fee of $100. 00 (if applicable). 7 Infrastructure Inspection Fee of $300.00 (applicable if any public infrastructure is being constructed.). V AIJplication completed in full. 7Thirteen (13) folded copies of plat. (A signed mylar original must be submitted after staff review.) 7one (1) copy of the approved Preliminary Plat and/or one (1) Master Plan (if applicable). ~Paid tax certificates from City of College Station, Brazos County and College Station I.S .D. V"" A copy of the attached checklist with all items checked off or a brief explanation as to why they are not. 7Two (2)copies of public infrastructure plans associated with this plat (ifapplicable)(.f.kevt~'I' -:Sv8.c.11Tre:o To APPLICATION DATA NAME OF SUBDMSION __ :5_1c_cr_sP._z..s_<!#-"""'-85'--"-E_'S_i.J~8~P~l_V(~:5/_0_tt1_-'-ffl--'-"'-'ll_i5'.-=t:'---S.-'-1-'--'x _________ _ SPECIFIED LOCATION OF PROPOSED SUBDMSION LoGATeo :5oc..>T116llST oF" A.llJ&es Two 4. 7ill!ee-(~t::&e:NTV( ?/AiDee (!o;eJ5/;CUC!.71D~) APPLICANT/PROJECT MANAGER'S INFORMATION (Primary Contact for the Project): Name MtK.t: Met..1-ulZ.G.. StreetAddress ('sec fuJ6,1,0t;t::7t'::;. :It.J&1~J..fll1il::>/.}J City------------- State Zip Code E-Mail Address ------------ Phone Number Fax Number ----------------- PROPER1Y OWNER'S INFORMATION: Name 81ZA;o,s 7ii1t:10 LAND DE.VaoPMe-~ R11:.TAJaes1-f/P 9 LTI>. Arr.o: JoHAJ f;uµc.cJPf Street Address 4-1 oo /.lwr. ~ ~oU[H City ___.._B.u:!.g...._.'IJ.-CJ'IJ.c:..Al,___---:==~~~=;:;=~ State JY. Zip Code 7180 Z. E-Mail Address ____ ......,,.~~,.......+.!=;._+;..-++~-t-tt-1 Phone Number (4<>'\) 8Z~ 811 t Fax Number __ '1_1......:~_---___::_.3o......:tf/::::......;_ __ ---41-....+--~,,........,...._,,..,.,,.,..,.,..---- ARCIDTECT OR ENGINEER'S INFORMATION: Name (!,~L~ c,()~t/Js(;J(!J~ 1AJe. Street Address /7 Z Z. /31Z.cAC¥UoDR.. State Tx Zip Code 1786Z Phone Number '77~ ~100 FINAL PLAT APPLICATION FNLPAPP.DOC 3'2Sf99 City Bil-y ~ A.J E-Mail Address -----------~ Fax Number "77 (, ~ C. 9q l ofJ / / 1. ~-r1 Ac . (K.-11) ,_,., / JI' ,, 111 ,ft.. (~~I) TOT~ ACRES OF SUBDIVISION /8. Cj f1 At..R-0-W ACREAGE :?.~ 48~.TOTAL # OF LOTS 8Z NUMBEROFLOTSBYZONINGDISTRICT ._JD/~-/~ d7 ,2-( -"-'--/---- A. VERAGE ACREAGE OF EACH RESIDENTIAL LOT BY ZONING DISTRICT: fJ.ZIBAt../ £-/e, o.111afl.t· £-/ ~ .----.-r--- FLOODPLAIN ACREAGE ~e/l.o PARKLAND DEDICATION ACREAGE 8. '1'18 A<!. OR FEE AMOUNT tv/A DEJ)tt!JUiJD DJ Rt o.-Je. A STATEMENT ADDRESSING ANY DIFFERENCES BE1WEEN 1HE FINAL PLAT AND APPROVED MASTER DEVELOPMENT PLAN AND/OR PRELIMINARY PLAT (IF APPLICABLE): MOOtriSO ?#t: :51~1: t;>,C: lDT-S '1 J lo ~L-De.K 4-~y M~i:/Ai~ °?#cNf L//~e~. m G REQUESTED VARIANCES TO SUBDMSION REGULATIONS & REASON FOR SAME. __ ML""'-"o::..LtJ=t5 ___ _ REQUESTEDOVERSIZEPARTICIPATION_~A~/o~~;J_G"_-________________ _ TOTAL LINEAR FOOTAGE OF PROPOSED: ~IZ-STREETS -z1e;t, SIDEWALKS 300L$6Iil/ilr SANITARY SEWER LINES 2q1~~ WATERLINES t,~> GH:ANNEIS/~.#iS /o" I STORM SEWERS #/19 BIKE LANES I PATHS I NOTE: DIGITAL COPY OF PLAT (IF APPLICABLE) MUST BE SUBMITTED PRIOR TO FILING. The applicant has prepared this application and certifies that the facts stated herein and exhibits attached hereto are true, correct and complete. The undersigned hereby requests approval by the City of College Station of the above identified final plat. FINAL PLAT APPLICATION FNLPAPP.DOC 3'2~/99 D~' 2of3 I I i - CITY OF COLLEGE STATION 111 CUSTO"ER RECEIPT 111 OPER: "RODGERS CT DRAWER: 1 DATE: 7/86/99 88 RECEIPT: 8846851 DESCRIPTION QTY 99 508291 1 BUILDING PER"ITS 99 83 1 PLANNING & ZONIN ~CLURE ENG-CK4599 FINAL PLAT FEE DEV PER"IT IHSP FEE STEEPLECHASE PH. 6 "R TENDER DETAIL CK 4599 A"OUNT TP T" $488.88 •BL CK CK: 4599 $288.80 •PL CK CK: 4599 $600.00 DATE: 7/06/99 TI"E: 10:43:51 TOTAL PERSONAL CHECK $600.80 A"OUNT TENDERED $600. 00 THANK YOU