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50 Development Permit 282 Windsor Point
Drainage Report For Windsor Pointe Lots 1&2 18 .29 Ac. College Station, Brazos County, Texas Windsor Pointe Apartments Prepared For: Southwest Pointe Limited Partnership c/o Brisben Development Co. 7800 East Kemper Street Cincinnat~ OH 45249 Prepared By: Municipal Development Group 203 Holleman Drive East College Station, TX 77840 (409) 693-5359 MDG Job No: 00351-2580 Approved By: North Bardell, P.E. t Windsor Pointe Apartments General Location The tract to be developed is located on both sides of the future Central Park Lane extension at the intersection of Central Park Lane and Southwest Parkway. Property Description This tract is a total of 19 .33 acres and is currently unimproved. This property consists of Lots 1 & 2 and a dedicated RO.W. for Central Park Lane extension. The lots are 11.44 acres, 6.85 acres, and 1.04 acres respectively. Lots 1 & 2 of Windsor Point are zoned R-5 and will be utilized for an apartment complex. Primary Drainage Basin Description The tract sheetflows southeast at a slope of approximately 1 %. The runoff eventually flows into the Krenek Tap Road drainage system and southwest into an intermittent stream under Krenek Tap Road. This project does not propose significant changes to these patterns since there have been no site specific flooding problems noted in the existing conditions. The tract does not lie in the floodp~ or floodway according to FEMA-FIRM Maps 48041C0144C (July 2, 1992). Lot 1 (South) Drainage Facility Design The project proposes improving 5.61 acres of Lot 1 which will result in an additional 21.54 c.fs. of runoff during the 10-year storm event. A rectangular weir 1.65 feet wide will be constructed at the outlet to limit the outflow to be less than that of the 10-year storm for all events of greater magnitude. The runoff will then flow under Central Park Lane to curb inlet at the outlet of Lot 2 and then will be piped to the storm system on Krenek Tap Road. Lot 2 (North) Drainage Facility Design The project proposes improving 3.38 acres of Lot 2 which will result in an additional 17. 48 c.f s. of runoff during the 10-year storm event. A rectangular weir 2 feet wide will be constructed at the outlet to limit the outflow to be less than that of the 10-year storm for all events of greater magnitude . The runoff will then be piped to the storm system on Krenek Tap Road. Off site Drainage Design Drainage will leave this site in a 36" RCP at a 0. 75% grade to tie into the system at Krenek Tap Road. This pipe will run parallel to the proposed future extension of Central Park Lane. At the upstream property line of the existing church the RCP will increase in size to a 42" RCP at . 72% grade to accommodate all to the road drainage and S. Madison's pre-existing 10 year storm drainage. Then in a parallel easement the RCP will complete its route to Krenek Tap Road. At Krenek Tap Road the drainage structure will change direction and flow to the southeast in a 42" RCP at 0.61 % grade to tie into the existing system (See Offsite Drainage Design Plan & Profile Sheet). The existing system ties into an intermittent stream which is a tributary of Carter's Creek. Conclusions The proposed weirs will limit the runoff to the 10-year pre-development quantities and there is adequate storage capacity on-site to detain the excess runoff in the detention areas. The design depicted is well within the standards of good practice and of the City of College Station Drainage Policy. DRAINAOE AREA Rational Method (Q = CIA) Pre-Development North Side Area Description (acres) Q Grassland 6.85 0.35 Pre-Development South Side Area Description (acres) Q Grassland 11 .44 0.35 Pre-Development Street Area Description (acres) Q Grassland 1.04 0.35 Total Tract Area (acres) Q 19.33 0.35 Post-Development North Side Area Weighted Description (acres) Q ___Q_ Landscaping 3.47 0.35 1.215 Impervious Area 3.38 0.90 3 .042 6 .85 4.257 Cavg = 4.257 6 .85 0.62 Post-Development South Side Area Weighted Description (acres) Q ___Q_ Landscaping 5.83 0.35 2 .04 1 Impervious Area 5.61 0.90 5.049 11 .44 7.090 Cavg = 7.090 11.44 0.62 Post-Deve lopment Street Area Weighted Description (acres) Q ___Q_ Green Area 0.02 0.35 0.007 Impervious Area 1.02 0.90 0.918 1.04 0.925 Cavg 0.925 1.04 0.89 Total Tract Area (acres) Q 19 .33 0.64 Time of Concentration (Tc) Time (minl Pre-Development North S ide 16 Pre-Development South Side 16 Pre-Development Street 16 Post-Development North Side 12 Post-Development South Side 16 Post-Development Street 5 Use 10 RUNOFF CALCULATIONS Runoff North Side Pre Post Frequency Area Intensity Intensity Cpre Cpost Qpre Qpost Vpre Vpost (years) @fl (in/in) (in/in) ---(cfs) (cfs) Ml Ml 100 6.85 9.3 10.8 0.35 0.62 22.35 45.87 32005 49545 50 6.85 8.9 10.3 0.35 0.62 21.42 43.96 31616 47473 25 6.85 7.9 9.1 0.35 0.62 18.00 38.85 27893 41957 10 6.85 6.9 8.0 0.35 0.62 16.50 33.98 24358 36703 5 6.85 6.1 7.1 0.35 0.62 14.61 30.21 21500 32626 Runoff South Side Pre Post Frequency Area Intensity Intensity Cpre Cpost Qpre Qpost Vpre Vpost (years) @fl (in/in) (in/in) ---(cfs) (cfs) Ml Ml 100 11.44 9.3 9.4 0.35 0.62 37.32 66.48 55088 96930 50 11.44 8.9 9.0 0.35 0.62 35.77 63.72 52800 92005 25 11.44 7.9 7.9 0.35 0.62 31.56 56.22 46584 81973 10 11.44 6.9 6.9 0.35 0.62 27.56 49.10 40679 71587 5 11.44 6.1 6.1 0.35 0.62 24.39 43.47 36006 63375 Total Private Runoff Frequency Area Cpre Cpost Qpre Qpost Vpre Vpost (years) @fl ---(cfs) (cfs) Ml Ml 100 18.29 0.35 0.62 59.67 112.36 88073 146475 50 18.29 0.35 0.62 57.19 107.68 84416 140378 25 18.29 0.35 0.62 50.46 95.07 74477 123930 10 18.29 0.35 0.62 44.06 83.08 65037 108200 5 18.29 0.35 0.62 39.00 73.68 57566 96001 Runoff Street Pre Post Frequency Area Intensity Intensity Cpre Cpost Qpre Qpost Vpre Vpost (years) @fl (in/in) (in/in) (cfs) (cfs) Ml Ml 100 1.04 9.3 11.6 0.35 0.89 3.39 10.77 5008 9600 50 1.04 8.9 11.1 0.35 0.89 3.25 10.31 4800 9280 25 1.04 7.9 9.9 0.35 0.89 2.87 9.12 1412 2737 10 1.04 6.9 8.6 0.35 0.89 2.51 7.00 1233 2396 5 1.04 6.1 7.7 0.35 0.89 2.22 7.12 1091 2135 Runoff Total Development Frequency Area Cpre Cpost Qpre Qpost Vpre Vpost (years) @fl ---(cfs) (cfs) Ml Ml 100 19.33 0.35 0.64 63.06 123.12 93081 156164 50 19.33 0.35 0.64 00.44 117.00 89216 149659 25 19.33 0.35 0.64 53.33 104.19 75889 126666 10 19.33 0.35 0.64 46.57 91.07 66269 110686 5 19.33 0.35 0.64 41.22 80.79 58657 98136 NORTH DRAINAGE AREA Routing 100 Year Detention Pond Bottom Width (ft} 30 Tc(min} Length (ft} 16 12 370 SideSloees Rectangular Weir Maximum Conditions Peak Flows {cfs} Run Rise Bottom Width (ft} Height Qweir 16.50 45.87 3 1 2.00 2.37 16.08 Tc Qpre Qpost Vine. Vtotal Ax-sec H Qweir s/dt Vstorage Ax-sec Hstorage (min} ~ ~ _JffL _JffL _JfilL _illL ~ --_JffL _JfilL --'f!L 0 0.00 0.00 0.0 0.0 0.0 0.00 0.00 0.0 0.0 0.0 0.00 1 1.03 3.82 229.4 229.4 0.6 0.02 0.02 1.9 114.2 0.3 0.01 2 2.06 7.65 458.7 572.9 1.5 0.05 0.07 7.6 455.7 1.2 0.04 3 3.09 11.47 688.1 1143.8 3.1 0.10 0.19 17.0 1021.5 2.8 0.09 4 4.13 15.29 917.5 1939.0 5.2 0.17 0.40 30.1 1806.6 4.9 0.16 5 5.16 19.11 1146.9 2953.5 8.0 0.26 0.74 46.7 2804.4 7.6 0.25 6 6.19 22.94 1376.2 4180.6 11.3 0.36 1.22 66.8 4007.0 10.8 0.35 7 7.22 26.76 1605.6 5612.6 15.2 0.48 1.84 90.1 5406.0 14.6 0.47 8 8.25 30.58 1835.0 7241.0 19.6 0.61 2.61 116.5 6992.6 18.9 0.59 9 9.28 34.41 2064.4 9057.0 24.5 0.76 3.53 146.0 8758.0 23.7 0.73 10 10.31 38.23 2293.7 11051.8 29.9 0.91 4.58 178.2 10693.9 28.9 0.89 11 11.35 42.05 2523.1 13217.0 35.7 1.08 5.75 213.2 12792.5 34.6 1.04 12 12.38 45.87 2752.5 15544.9 42.0 1.25 7.03 250.8 15046.8 40.7 1.21 13 13.41 43.96 2637.8 17684.5 47.8 1.40 8.22 288.1 17284.4 46.7 1.37 14 14.44 42.05 2523.1 19807.5 53.5 1.55 9.39 322.3 19336.7 52.3 1.51 15 15.47 40.14 2408.4 21745.1 58.8 1.68 10.45 353.5 21207.2 57.3 1.64 16 16.50 38.23 2293.7 23500.9 63.5 1.79 11.41 381.7 22902.5 61.9 1.76 17 15.99 36.32 2179.0 25081.6 67.8 1.90 12.25 407.2 24429.1 66.0 1.86 18 15.47 34.41 2064.4 26493.5 71.6 1.99 13.00 429.9 25793.2 69.7 1.95 19 14.96 32.49 1949.7 27742.9 75.0 2.07 13.66 450.0 27000.5 73.0 2.02 20 14.44 30.58 1835.0 28835.5 77.9 2.14 14.22 467.6 28056.5 75.8 2.09 21 13.92 28.67 1720.3 29776.8 80.5 2.20 14.70 482.8 28966.4 78.3 2.15 22 13.41 26.76 1605.6 30572.0 82.6 2.25 15.11 495.6 29735.0 80.4 2.20 23 12.89 24.85 1490.9 31226.0 84.4 2.29 15.44 506.1 30367.0 82.1 2.24 24 12.38 22.94 1376.2 31743.2 85.8 2.32 15.69 514.4 30866.7 83.4 2.27 25 11.86 21.03 1261.6 32128.2 86.8 2.34 15.89 520.6 31238.1 84.4 2.29 26 11.35 19.11 1146.9 32385.0 87.5 2.36 16.01 524.8 31485.4 85.1 2.31 27 10.83 17.20 1032.2 32517.5 87.9 2.37 16.08 526.9 31612.1 85.4 2.31 28 10.31 15.29 917.5 32529.6 87.9 2.37 16.08 527.0 31622.1 85.5 2.31 29 9.80 13.38 802.8 32424.9 87.6 2.36 16.03 525.3 31518.7 85.2 2.31 30 9.28 11.47 688.1 32206.8 87.0 2.35 15.93 521.8 31305.4 84.6 2.29 31 8.77 9.56 573.4 31878.8 86.2 2.33 15.76 516.4 30985.6 83.7 2.27 32 8.25 7.65 458.7 31444.3 85.0 2.30 15.55 509.4 30562.4 82.6 2.25 33 7.74 5.73 344.1 30906.5 83.5 2.27 15.28 500.7 30039.2 81.2 2.22 34 7.22 3.82 229.4 30268.6 81.8 2.23 14.95 490.3 29419.0 79.5 2.18 35 6.70 1.91 114.7 29533.7 79.8 2.18 14.58 478.4 28705.1 77.6 2.13 36 6.19 0.00 0.0 28705.1 77.6 2.13 14.15 465.0 27900.4 75.4 2.08 37 5.67 27900.4 75.4 2.08 13.74 451.1 27063.6 73.1 2.03 38 5.16 27063.6 73.1 2.03 13.30 437.5 26252.5 71.0 1.98 39 4.64 26252.5 71.0 1.98 12.87 424.5 25467.2 68.8 1.92 40 4.13 25467.2 68.8 1.92 12.46 411.8 24707.2 66.8 1.87 41 3.61 24707.2 66.8 1.87 12.05 399.5 23971.9 64.8 1.83 42 3.09 23971.9 64.8 1.83 11.66 387.7 23260.5 62.9 1.78 43 2.58 23260.5 62.9 1.78 11.28 376.2 22572.5 61.0 1.73 44 2.06 22572.5 61.0 1.73 10.90 365.1 21907.1 59.2 1.69 45 1.55 21907.1 59.2 1.69 10.54 354.4 21263.8 57.5 1.65 46 1.03 21263.8 57.5 1.65 10.19 344.0 20642.0 55.8 1.60 47 0.52 20642.0 55.8 1.60 9.85 334.0 20040.8 54.2 1.56 48 0.00 20040.8 54.2 1.56 9.52 324.3 19459.8 52.6 1.52 49 19459.8 52.6 1.52 9.20 315.0 18898.4 51.1 1.48 50 18898.4 51.1 1.48 8.89 305.9 18355.8 49.6 1.44 51 18355.8 49.6 1.44 8.59 297.2 17831.5 48.2 1.41 52 17831.5 48.2 1.41 8.30 288.7 17324.9 46.8 1.37 53 17324.9 46.8 1.37 8.02 280.6 16835.4 45.5 1.34 54 16835.4 45.5 1.34 7.75 272.7 16362.5 44.2 1.30 55 16362.5 44.2 1.30 7.48 265.1 15905.5 43.0 1.27 56 15905.5 43.0 1.27 7.23 257.7 15464.0 41.8 1.24 57 15464.0 41.8 1.24 6.99 250.6 15037.4 40.6 1.21 58 15037.4 40.6 1.21 6.75 243.8 14625.2 39.5 1.18 59 14625.2 39.5 1.18 6.52 237.1 14226.9 38.5 1.15 60 14226.9 38.5 1.15 6.31 230.7 13842.0 37.4 1.12 0 10 North Hydrograph 100 Year Storm 20 30 40 Time (min) --e-Qpre -a-Qpost ----Qweir 50 60 NORTH DRAINAGE AREA Routing 50Year Detention Pond Bottom Width (ft} 30 Tc(min} Length (ft} 16 12 370 SideSloees Rectangular Weir Maximum Cond~ions Peak Flows (cfs} Run Rise Bottom Width (ft} Height Qweir 16.50 43.96 3 1 2.00 2 .29 15.42 Tc Qpre Qpost Vine . Vtotal Ax-sec H Qweir s/dt Vstorage Ax-sec Hstorage (min} ..Mfil... ..Mfil... _if!}_ _if!}_ _ML -1f1L ..Mfil... __@__ _ML -'f!L 0 0 .00 0.00 0 .0 0 .0 0.0 0 .00 0 .00 0 .0 0 .0 0.0 0.00 1 1.03 3 .66 219.8 219.8 0.6 0 .02 0 .02 1.8 109.4 0 .3 0 .0 1 2 2.06 7.33 439.6 549.0 1.5 0 .05 0 .06 7.3 436.7 1.2 0 .04 3 3.09 10.99 659.3 1096.1 3 .0 0 .10 0 .18 16.3 979.0 2.6 0 .09 4 4.13 14.65 879.1 1858.2 5 .0 0 .16 0.38 28.9 1731 .6 4.7 0 .15 5 5 .16 18.32 1098.9 2830.5 7 .7 0 .25 0 .70 44 .8 2688.3 7.3 0 .24 6 6 .19 21 .98 1318.7 4007.0 10.8 0 .35 1.15 64.0 3841 .6 10.4 0 .33 7 7 .22 25.64 1538.5 5380.1 14.5 0.46 1.74 86.4 5183.6 14.0 0.45 8 8 .25 29.30 1758.3 6941 .8 18.8 0.59 2.47 111.8 6705.8 18.1 0 .57 9 9 .28 32.97 1978.0 8683.8 23.5 0 .73 3 .34 140.0 8399.8 22.7 0 .71 10 10.31 36.63 2197.8 10597.6 28.6 0 .88 4.34 171.0 10257.5 27.7 0 .85 11 11 .35 40.29 2417.6 12675.1 34.3 1.03 5.45 204.5 12271 .5 33.2 1.00 12 12.38 43.96 2637.4 14908.9 40.3 1.20 6 .68 240.6 14435.0 39.0 1.16 13 13.41 42.12 2527.5 16962.4 45 .8 1.35 7.82 276.4 16582.4 44.8 1.32 14 14.44 40 .29 2417.6 19000.0 51.4 1.49 8 .94 309.2 18552.2 50.1 1.46 15 15.47 38.46 2307.7 20859.9 56.4 1.62 9.97 339.1 2 0347.4 55.0 1.58 16 16.50 36.63 2197.8 22545.3 60.9 1.73 10.89 366.2 21974.5 59.4 1.69 17 15.99 34.80 2087.9 24062.5 65.0 1.83 11.71 390.7 23439.5 63.4 1.79 18 15.47 32.97 1978.0 25417.6 68.7 1.92 12.43 412.5 24748.3 66.9 1.88 19 14.96 31 .14 1868.1 26616.5 71 .9 2 .00 13.07 431.8 25906.5 70.0 1.95 20 14.44 29.30 1758.3 27664.7 74.8 2 .07 13.62 448 .7 26919.2 72 .8 2.02 21 13.92 27.47 1648.4 28567.6 77.2 2 .12 14.08 463.2 27791 .6 75.1 2 .07 22 13.41 25.64 1538.5 29330.1 79.3 2 .17 14.48 475.5 28528.3 77.1 2.12 23 12.89 23.81 1428.6 29956.8 81 .0 2 .21 14.80 485.6 29133.7 78.7 2.16 24 12.38 21 .98 1318.7 30452.4 82.3 2.24 15.05 493.5 29612.1 80.0 2.19 25 11 .86 20.15 1208.8 30820.9 83.3 2 .26 15.23 499.5 29967.4 81 .0 2.21 26 11.35 18.32 1098.9 31066.3 84.0 2 .28 15.36 503.4 30203 .6 81 .6 2.23 27 10.83 16.48 989 .0 31192.6 84.3 2 .29 15.42 505.4 30324.3 82.0 2 .23 28 10.31 14.65 879.1 31203.5 84.3 2 .29 15.42 505.6 30333.1 82.0 2.23 29 9 .80 12.82 769.2 31102.3 84.1 2 .28 15.37 503.9 30233.3 81 .7 2.23 30 9 .28 10.99 659.3 30892.6 83.5 2 .27 15 .27 500.5 30028.3 81 .2 2.21 31 8 .77 9 .16 549.5 30577.8 82.6 2 .25 15.11 495.4 29721 .3 80.3 2.20 32 8.25 7 .33 439.6 30160.9 81 .5 2.22 14.90 488.6 29315.6 79.2 2.1 7 33 7 .74 5.49 329.7 29645.3 80.1 2 .19 14.64 480.2 28814.1 77.9 2.14 34 7 .22 3.66 219.8 29033.9 78.5 2 .15 14.32 470.3 28220.1 76.3 2 .10 35 6.70 1.83 109.9 28330.0 76.6 2 .11 13.96 458.9 27536.4 74.4 2 .06 36 6.19 0 .00 0 .0 27536.4 74.4 2 .06 13.55 446 .1 26766.1 72.3 2 .01 37 5.67 26766.1 72.3 2 .01 13.14 432 .8 25965.3 70.2 1.96 38 5 .16 25965.3 70.2 1.96 12 .72 419 .8 25189.3 68.1 1.91 39 4.64 25189.3 68.1 1.91 12.31 407.3 24438.3 66.0 1.86 40 4 .13 24438.3 66.0 1.86 11.91 395.2 23711.7 64.1 1.81 41 3 .61 23711 .7 64.1 1.81 11 .52 383.5 23008.8 62.2 1.76 42 3 .09 2300 8 .8 62.2 1.76 11 .14 372.2 22329.1 60.3 1.72 43 2 .58 22329.1 60.3 1.72 10 .77 361 .2 21671 .8 58.6 1.6 7 44 2 .06 21671 .8 58.6 1.67 10.41 350.6 21036.3 56.9 1.63 45 1.55 21036.3 56.9 1.63 10 .06 340.4 20422.0 55.2 1.59 46 1.03 20422.0 55.2 1.59 9 .73 330.5 19828.3 53.6 1.55 47 0 .52 19828.3 53.6 1.55 9 .40 320.9 19254.4 52.0 1.51 48 0 .00 19254.4 52.0 1.51 9.08 311 .7 18699.8 50.5 1.47 49 18699.8 50.5 1.47 8.78 302.7 18163.9 49.1 1.43 50 18163.9 49.1 1.43 8.48 294.1 17646.1 47.7 1.40 51 17646.1 47.7 1.40 8 .2 0 285.8 17145.8 46.3 1.36 52 17145.8 46.3 1.36 7 .92 277.7 16662.3 45 .0 1.33 53 16662.3 45.0 1.33 7 .65 269.9 16195.2 43.8 1.29 54 16195.2 43 .8 1.29 7.39 262.4 15744.0 42.6 1.26 55 15744.0 42 .6 1.26 7 .14 255.1 15307.9 41.4 1.23 56 15307.9 41 .4 1.23 6.90 248.1 14886.6 40.2 1.20 57 14886.6 40.2 1.20 6 .67 241 .3 14479.5 39.1 1.17 58 14479.5 39.1 1.17 6.44 234.8 14086.1 38.1 1.14 59 14086.1 38.1 1.14 6.23 228.4 13706.0 37.0 1.11 60 13706.0 37.0 1.11 6 .02 222.3 13338.6 36.1 1.08 0 10 North Hydrograph 50 Year Storm 20 30 40 Time (min) ~ Qpre -e---Qpost ------Qweir 50 60 NORTH DRAINAGE AREA Routing 25 Year Detention Pond Bottom Width (ft} 30 Tc(min} Length (ft} 16 12 370 SideSlo(1es Rectangular Weir Maximum Conditions Peak Flows (cfs} Run Rise Bottom Widt h (ft} Height Qweir 16.50 38.85 3 1 2.00 2 .07 13.63 Tc Qpre Qpost Vine . Vtotal Ax-sec H Qweir s/dt Vstorage Ax-sec Hstorage (min} Jff& Jff& _ML _ML -1filL -1f!L Jff& _Jff}_ -1filL -1f!L 0 0 .00 0 .00 0 .0 0 .0 0 .0 0 .00 0 .00 0.0 0.0 0 .0 0 .00 1 1.03 3 .24 194.2 194.2 0 .5 0 .02 0 .01 1.6 96 .7 0 .3 0 .01 2 2 .06 6 .47 388.5 485.2 1.3 0 .04 0 .05 6.4 386.1 1.0 0.03 3 3 .09 9 .71 582.7 968.9 2 .6 0 .09 0 .15 14.4 865.8 2.3 0 .08 4 4 .13 12.95 777.0 1642.8 4.4 0 .15 0.32 25.5 1531 .8 4.1 0 .14 5 5 .16 16.19 971 .2 2503.0 6.8 0 .22 0 .59 39.6 2378.8 6.4 0 .21 6 6 .19 19.42 1165.5 3544.2 9 .6 0.31 0.97 56.7 3400.6 9.2 0 .30 7 7 .22 22.66 1359.7 4760.3 12.9 0.41 1.46 76.5 4590.3 12.4 0.40 8 8 .25 25.90 1554.0 6144.2 16.6 0 .53 2 .09 99.0 5940.5 16.1 0.51 9 9 .28 29.14 1748.2 7688.7 20.8 0 .65 2.83 124.1 7443.9 20.1 0 .63 10 10.31 32.37 1942.5 9386.4 25.4 0 .78 3.70 151 .6 9093.2 24.6 0 .76 11 11 .35 35 .61 2136.7 11229.9 30.4 0 .93 4.67 181 .4 10881 .7 29.4 0 .90 12 12.38 38.85 2330 .9 13212.6 35.7 1.07 5.75 213.4 12802.8 34.6 1.04 13 13.41 37.23 2233.8 15036.6 40.6 1.21 6 .75 245.2 14710.2 39.8 1.18 14 14.44 35.61 2136.7 16846.9 45 .5 1.34 7 .75 274.3 16460.3 44.5 1.31 15 15.47 33.99 2039.6 18499.9 50.0 1.45 8.67 300.9 18055.8 48.8 1.42 16 16.50 32.37 1942.5 19998.3 54.0 1.56 9.49 325.0 19502.0 52.7 1.52 17 15.99 3 0 .76 1845.3 21347.3 57.7 1.65 10.23 346.7 20804.0 56.2 1.61 18 15.47 29.14 1748.2 22552.2 61 .0 1.73 10 .89 366.1 21966.9 59.4 1.69 19 14.96 27.52 1651.1 23618.0 63.8 1.80 11.47 383.3 22995.8 62.2 1.76 20 14.44 25.90 1554.0 24549.8 66.4 1.86 11 .97 398.3 23895.2 64.6 1.82 21 13 .92 24.28 1456.8 25352.0 68.5 1.92 12.40 411.2 24669.6 66.7 1.87 22 13.41 22.66 1359.7 26029.3 70.3 1.96 12.76 422.1 25323.3 68.4 1.9 1 23 12.89 21.04 1262.6 26585.9 71 .9 2 .00 13 .05 431 .0 25860.2 69.9 1.95 24 12.38 19.42 1165.5 27025.7 73.0 2 .02 13.28 438 .1 26284.3 71 .0 1.98 25 11 .86 17.81 1068.3 27352.7 73.9 2.0 5 13 .45 443.3 26599.2 71 .9 2 .00 26 11 .35 16.19 971 .2 27570.5 74.5 2.06 13.57 446 .8 26808.5 72.5 2 .01 27 10.83 14.57 874.1 27682.6 74.8 2 .07 13.62 448.6 26915.4 72.7 2 .02 28 10.31 12.95 777.0 27692.4 74.8 2.07 13.63 448.7 26923.3 72.8 2 .02 29 9 .80 11 .33 679.9 27603.2 74.6 2.06 13.58 447.3 26835.4 72.5 2 .01 30 9.28 9 .71 582.7 27418.1 74 .1 2 .05 13.49 444.2 26654.6 72.0 2.00 31 8 .77 8.09 485.6 27140 .2 73.4 2 .03 13.34 439.7 26384.0 71 .3 1.98 32 8 .25 6 .47 388.5 26772.4 72.4 2 .01 13.15 433.8 26026.3 70.3 1.96 33 7 .74 4.86 291.4 26317.7 71 .1 1.98 12.91 426.4 25584.5 69.1 1.93 34 7 .22 3 .24 194.2 25778.8 69.7 1.94 12.62 417.7 25061.4 67.7 1.90 35 6 .70 1.62 97.1 25158 .5 68.0 1.90 12.29 407.7 24459.5 66.1 1.86 36 6 .19 0 .00 0 .0 24459.5 66.1 1.86 11.92 396.4 23781 .6 64.3 1.81 37 5 .67 23781 .6 64.3 1.8 1 11.56 384.6 23077.3 62.4 1.77 38 5 .16 23077.3 62.4 1.77 11.18 373.3 22395.3 60.5 1.72 39 4 .64 22395.3 60.5 1.72 10.81 362.3 21735.8 58.7 1.68 40 4.13 21735.8 58.7 1.68 10.45 351 .6 21 098.2 57.0 1.63 41 3 .61 21098.2 57.0 1.63 10.10 341.4 20481.9 55.4 1.59 42 3 .09 20481 .9 55.4 1.59 9.76 331.4 19886.1 53.7 1.55 43 2 .58 19886.1 53.7 1.55 9 .43 321.8 19310.3 52.2 1.51 44 2 .06 1931 0 .3 52.2 1.51 9.12 312.6 18753.8 50.7 1.47 45 1.55 18753.8 50.7 1.47 8.81 303.6 18216.1 49.2 1.44 46 1.03 18216.1 49.2 1.44 8.51 294.9 17696.5 47.8 1.40 47 0 .52 17696.5 47.8 1.40 8.22 286.6 17194.5 46.5 1.36 48 0 .00 17194.5 46.5 1.36 7 .95 278.5 16709.4 45.2 1.33 49 16709.4 45.2 1.33 7 .68 270.7 16240 .7 43.9 1.30 50 16240.7 43.9 1.30 7 .42 263.1 15787.9 42 .7 1.26 51 15787.9 42 .7 1.26 7 .17 255.8 15350.4 41 .5 1.23 52 15350.4 41 .5 1.23 6 .92 248.8 14927.6 40.3 1.20 53 14927.6 40.3 1.20 6 .6 9 242.0 14519.1 39.2 1.17 54 14519.1 39.2 1.17 6.47 235.4 14124.4 38.2 1.14 55 14124.4 38.2 1.14 6 .25 229.0 13743.0 37.1 1.11 56 13743.0 37.1 1.11 6 .04 222.9 13374.4 36.1 1.09 57 13374.4 36.1 1.09 5.84 217.0 13018.1 35.2 1.06 58 13018.1 35.2 1.06 5 .64 211 .2 12673.7 34.3 1.03 59 12673.7 34.3 1.03 5 .45 205.7 12340.8 33.4 1.01 60 12340 .8 33.4 1.01 5 .27 200.3 12019.0 32.5 0 .99 North Hydrograph 25 Year Storm o ~=-c__---1-~--+~~-+-------&--+--~-=--+--~~ 0 10 20 30 40 50 60 Time (min) -e-Qpre -e---Qpost ---Qweir NORTH DRAlfllAOE AREA Routing 10 Year Detention Pond Bottom Width (ft} 30 Tc (min} Length (ftl 16 12 370 SideSl01;1es Rectangular Weir Maximum Conditions Peak Flows (cfs} Run Rise Bottom Width (ft} Height Qweir 16.50 33.98 3 1 2.00 1.85 11.87 Tc Qpre Qpost Vine. Vtotal Ax-sec H Qweir s/dt Vstorage Ax-sec Hstorage (min} ..1£& ..1£& _ML _ML _oo_ -1f!L ..1£& --_ML _oo_ --1f!L 0 0.00 0.00 0.0 0.0 0.0 0.00 0.00 0.0 0.0 0.0 0.00 1 1.03 2.83 169.9 169.9 0.5 0.02 0.01 1.4 84.6 0.2 0.01 2 2.06 5.66 339.8 424.5 1.1 0.04 0.04 5.6 337.9 0.9 0.03 3 3.09 8.50 509.8 847.7 2.3 0.08 0.12 12.6 757.8 2.0 0.07 4 4.13 11.33 679.7 1437.5 3.9 0.13 0.26 22.4 1341.1 3.6 0.12 5 5.16 14.16 849.6 2190.7 5.9 0.19 0.48 34.7 2083.5 5.6 0.18 6 6.19 16.99 1019.5 3103.0 8.4 0.27 0.80 49.7 2979.6 8.1 0.26 7 7.22 19.82 1189.4 4169.0 11.3 0.36 1.22 67.1 4023.6 10.9 0.35 8 8.25 22.66 1359.4 5383.0 14.5 0.46 1.74 86.8 5209.4 14.1 0.45 9 9.28 25.49 1529.3 6738.7 18.2 0.57 2.37 108.8 6530.4 17.6 0.56 10 10.31 28.32 1699.2 8229.6 22.2 0.69 3.11 133.0 7980.4 21.6 0.67 11 11.35 31.15 1869.1 9849.5 26.6 0.82 3.94 159.2 9553.2 25.8 0.80 12 12.38 33.98 2039.0 11592.2 31.3 0.95 4.87 187.4 11243.0 30.4 0.93 13 13.41 32.57 1954.1 13197.1 35.7 1.07 5.74 215.4 12921.3 34.9 1.05 14 14.44 31.15 1869.1 14790.5 40.0 1.19 6.62 241.0 14462.3 39.1 1.17 15 15.47 29.74 1784.2 16246.4 43.9 1.30 7.42 264.5 15867.8 42.9 1.27 16 16.50 28.32 1699.2 17567.0 47.5 1.39 8.15 285.7 17142.3 46.3 1.36 17 15.99 26.90 1614.2 18756.6 50.7 1.47 8.81 304.8 18290.2 49.4 1.44 18 15.47 25.49 1529.3 19819.5 53.6 1.55 9.40 321.9 19315.8 52.2 1.51 19 14.96 24.07 1444.3 20760.1 56.1 1.61 9.91 337.1 20223.3 54.7 1.57 20 14.44 22.66 1359.4 21582.7 58.3 1.67 10.36 350.3 21016.8 56.8 1.63 21 13.92 21.24 1274.4 22291.2 60.2 1.71 10.75 361.7 21700.3 58.6 1.67 22 13.41 19.82 1189.4 22889.8 61.9 1.75 11.07 371.3 22277.5 60.2 1.71 23 12.89 18.41 1104.5 23382.0 63.2 1.79 11.34 379.2 22752.0 61.5 1.75 24 12.38 16.99 1019.5 23771.5 64.2 1.81 11.55 385.5 23127.2 62.5 1.77 25 11.86 15.58 934.6 24061.8 65.0 1.83 11.71 390.1 23406.5 63.3 1.79 26 11.35 14.16 849.6 24256.1 65.6 1.84 11.81 393.2 23593.0 63.8 1.80 27 10.83 12.74 764.6 24357.7 65.8 1.85 11.87 394.8 23689.8 64.0 1.81 28 10.31 11.33 679.7 24369.5 65.9 1.85 11.87 395.0 23699.8 64.1 1.81 29 9.80 9.91 594.7 24294.5 65.7 1.85 11.83 393.8 23625.9 63.9 1.80 30 9.28 8.50 509.8 24135.6 65.2 1.84 11.75 391.2 23470.8 63.4 1.79 31 8.77 7.08 424.8 23895.6 64.6 1.82 11.62 387.3 23237.1 62.8 1.78 32 8.25 5.66 339.8 23576.9 63.7 1.80 11.45 382.1 22927.5 62.0 1.76 33 7.74 4.25 254.9 23182.4 62.7 1.77 11.23 375.7 22544.5 60.9 1.73 34 7.22 2.83 169.9 22714.4 61.4 1.74 10.98 368.2 22090.5 59.7 1.70 35 6.70 1.42 85.0 22175.4 59.9 1.71 10.69 359.5 21567.9 58.3 1.67 36 6.19 0.00 0.0 21567.9 58.3 1.67 10.36 349.7 20979.2 56.7 1.63 37 5.67 20979.2 56.7 1.63 10.03 339.5 20367.5 55.0 1.58 38 5.16 20367.5 55.0 1.58 9.70 329.6 19775.6 53.4 1.54 39 4.64 19775.6 53.4 1.54 9.37 320.1 19203.5 51.9 1.50 40 4.13 19203.5 51.9 1.50 9.06 310.8 18650.6 50.4 1.47 41 3.61 18650.6 50.4 1.47 8.75 301.9 18116.4 49.0 1.43 42 3.09 18116.4 49.0 1.43 8.46 293.3 17600.2 47.6 1.39 43 2.58 17600.2 47.6 1.39 8.17 285.0 17101.4 46.2 1.36 44 2.06 17101.4 46.2 1.36 7.89 277.0 16619.4 44.9 1.32 45 1.55 16619.4 44.9 1.32 7.63 269.2 16153.8 43.7 1.29 46 1.03 16153.8 43.7 1.29 7.37 261.7 15703.9 42.4 1.26 47 0.52 15703.9 42.4 1.26 7.12 254.5 15269.2 41.3 1.23 48 0.00 15269.2 41.3 1.23 6.88 247.5 14849.2 40.1 1.19 49 14849.2 40.1 1.19 6.65 240.7 14443.4 39.0 1.17 50 14443.4 39.0 1.17 6.42 234.2 14051.2 38.0 1.14 51 14051.2 38.0 1.14 6.21 227.9 13672.2 37.0 1.11 52 13672.2 37.0 1.11 6.00 221.8 13306.0 36.0 1.08 53 13306.0 36.0 1.08 5.80 215.9 12952.0 35.0 1.06 54 12952.0 35.0 1.06 5.61 210.2 12609.8 34.1 1.03 55 12609.8 34.1 1.03 5.42 204.7 12279.1 33.2 1.01 56 12279.1 33.2 1.01 5.24 199.3 11959.3 32.3 0.98 57 11959.3 32.3 0.98 5.07 194.2 11650.1 31.5 0.96 58 11650.1 31.5 0.96 4.90 189.2 11351.2 30.7 0.94 59 11351.2 30.7 0.94 4.74 184.4 11062.0 29.9 0.91 60 11062.0 29.9 0.91 4.58 179.7 10782.4 29.1 0.89 North Hydrograph 1 0 Year Storm 35 .--~-r-~~-,--~-----.-~~-,--~-,-~---, 30 -.----~---___,.~-+--~-+-~~-+--~-+-~____, 25 -+--~--F-f-~------=>,--+-~----;-~~-+-~-+--~---4 ....-.... ~20 -r----.~~~~r--~-t--~-t-~~--+-~__, 0 ~ 015 -r-------t--T---Y---d----T--+-~~-t-~-t-~--1 1o ~f---Tf-~~+-~~~~t--~-t-~----1 5 -t-T-~-+---+-~--+-~--+-~-=-=-+-~----t~~~ o ~==--+-~~-+--~-4-___c--+---=-+--~----1 0 10 20 30 40 50 60 Time (min) --&-Qpre ---e-Qpost ____.,_ Qweir NORTH DRAINAGE AREA Routing 5Year Detention Pond Bottom Width (ft} 30 Tc (min} Length (ft} 16 12 370 SideSlol;!eS Rectangular Weir Maximum Conditions Peak Flows (cfs} Run Rise Bottom Width (ft} Height Qweir 14.61 30.21 3 1 2.00 1.68 10.48 Tc Qpre Qpost Vine. Vtotal Ax-sec H Qweir s/dt Vstorage Ax-sec Hstorage (min} lrul. lrul. __@._ __@._ _oo_ .Jf!L lrul. --_ML _oo_ --1f!L 0 0.00 0.00 0.0 0.0 0.0 0.00 0.00 0.0 0.0 0.0 0.00 1 0.91 2.52 151.0 151.0 0.4 0.01 0.01 1.3 75.2 0.2 0.01 2 1.83 5.03 302.1 377.3 1.0 0.03 0.04 5.0 300.5 0.8 0.03 3 2.74 7.55 453.1 753.6 2.0 0.07 0.10 11.2 674.0 1.8 0.06 4 3.65 10.07 604.2 1278.2 3.5 0.11 0.22 19.9 1193.0 3.2 0.11 5 4.56 12.59 755.2 1948.3 5.3 0.17 0.41 30.9 1854.0 5.0 0.16 6 5.48 15.10 906.3 2760.2 7.5 0.24 0.67 44.2 2652.3 7.2 0.23 7 6.39 17.62 1057.3 3709.6 10.0 0.32 1.03 59.7 3582.9 9.7 0.31 8 7.30 20.14 1208.4 4791.3 12.9 0.41 1.48 77.3 4640.5 12.5 0.40 9 8.22 22.66 1359.4 5999.9 16.2 0.51 2.02 97.0 5819.4 15.7 0.50 10 9.13 25.17 1510.5 7329.9 19.8 0.62 2.66 118.6 7114.0 19.2 0.60 11 10.04 27.69 1661.5 8775.5 23.7 0.74 3.38 142.0 8518.8 23.0 0.72 12 10.96 30.21 1812.6 10331.3 27.9 0.86 4.19 167.1 10028.5 27.1 0.83 13 11.87 28.95 1737.0 11765.5 31.8 0.97 4.96 192.1 11528.6 31.2 0.95 14 12.78 27.69 1661.5 13190.1 35.6 1.07 5.74 215.1 12906.9 34.9 1.05 15 13.69 26.43 1586.0 14492.9 39.2 1.17 6.45 236.1 14165.0 38.3 1.15 16 14.61 25.17 1510.5 15675.5 42.4 1.25 7.10 255.1 15306.6 41.4 1.23 17 14.15 23.92 1434.9 16741.5 45.2 1.33 7.69 272.3 16335.3 44.1 1.30 18 13.69 22.66 1359.4 17694.7 47.8 1.40 8.22 287.6 17255.0 46.6 1.37 19 13.24 21.40 1283.9 18538.8 50.1 1.46 8.69 301.2 18069.2 48.8 1.42 20 12.78 20.14 1208.4 19277.6 52.1 1.51 9.10 313.0 18781.8 50.8 1.47 21 12.32 18.88 1132.8 19914.6 53.8 1.55 9.45 323.3 19396.0 52.4 1.52 22 11.87 17.62 1057.3 20453.3 55.3 1.59 9.74 331.9 19915.3 53.8 1.55 23 11.41 16.36 981.8 20897.1 56.5 1.62 9.99 339.0 20342.8 55.0 1.58 24 10.96 15.10 906.3 21249.1 57.4 1.64 10.18 344.7 20681.8 55.9 1.61 25 10.50 13.85 830.8 21512.5 58.1 1.66 10.33 348.9 20935.1 56.6 1.62 26 10.04 12.59 755.2 21690.3 58.6 1.67 10.42 351.8 21105.7 57.0 1.63 27 9.59 11.33 679.7 21785.4 58.9 1.68 10.47 353.3 21196.3 57.3 1.64 28 9.13 10.07 604.2 21800.4 58.9 1.68 10.48 353.5 21209.5 57.3 1.64 29 8.67 8.81 528.7 21738.2 58.8 1.68 10.45 352.5 21148.0 57.2 1.64 30 8.22 7.55 453.1 21601.2 58.4 1.67 10.37 350.2 21014.3 56.8 1.63 31 7.76 6.29 377.6 21391.9 57.8 1.65 10.26 346.8 20810.7 56.2 1.61 32 7.30 5.03 302.1 21112.7 57.1 1.63 10.11 342.3 20539.5 55.5 1.60 33 6.85 3.78 226.6 20766.1 56.1 1.61 9.92 336.7 20203.2 54.6 1.57 34 6.39 2.52 151.0 20354.2 55.0 1.58 9.69 330.1 19803.8 53.5 1.55 35 5.93 1.26 75.5 19879.3 53.7 1.55 9.43 322.4 19343.5 52.3 1.51 36 5.48 0.00 0.0 19343.5 52.3 1.51 9.13 313.7 18824.4 50.9 1.48 37 5.02 18824.4 50.9 1.48 8.85 304.7 18284.9 49.4 1.44 38 4.56 18284.9 49.4 1.44 8.55 296.1 17763.0 48.0 1.40 39 4.11 17763.0 48.0 1.40 8.26 287.6 17258.7 46.6 1.37 40 3.65 17258.7 46.6 1.37 7.98 279.5 16771.5 45.3 1.33 41 3.20 16771.5 45.3 1.33 7.71 271.7 16300.7 44.1 1.30 42 2.74 16300.7 44.1 1.30 7.45 264.1 15845.9 42.8 1.27 43 2.28 15845.9 42.8 1.27 7.20 256.8 15406.4 41.6 1.24 44 1.83 15406.4 41.6 1.24 6.96 249.7 14981.7 40.5 1.20 45 1.37 14981.7 40.5 1.20 6.72 242.9 14571.4 39.4 1.17 46 0.91 14571.4 39.4 1.17 6.49 236.2 14174.9 38.3 1.15 47 0.46 14174.9 38.3 1.15 6.28 229.9 13791.8 37.3 1.12 48 0.00 13791.8 37.3 1.12 6.07 223.7 13421.5 36.3 1.09 49 13421.5 36.3 1.09 5.86 217.7 13063.7 35.3 1.06 50 13063.7 35.3 1.06 5.67 212.0 12717.8 34.4 1.04 51 12717.8 34.4 1.04 5.48 206.4 12383.4 33.5 1.01 52 12383.4 33.5 1.01 5.30 201.0 12060.2 32.6 0.99 53 12060.2 32.6 0.99 5.12 195.8 11747.7 31.8 0.97 54 11747.7 31.8 0.97 4.95 190.8 11445.5 30.9 0.94 55 11445.5 30.9 0.94 4.79 185.9 11153.3 30.1 0.92 56 11153.3 30.1 0.92 4.63 181.2 10870.7 29.4 0.90 57 10870.7 29.4 0.90 4.48 176.6 10597.3 28.6 0.88 58 10597.3 28.6 0.88 4.34 172.2 10332.8 27.9 0.86 59 10332.8 27.9 0.86 4.20 167.9 10076.8 27.2 0.84 60 10076.8 27.2 0.84 4.06 163.8 9829.2 26.6 0.82 North Hydrograph 5 Year Storm 35 ~-~--~-~--~-~-~ 30 -t------+-~--+---t----+----+--~ 25 -+---------+-----+-----+----+--~ ....-.... ~20 -+---~--------+---1---+--~ 0 0 15 1 0 -1--+-------HL--------+--=.,,~~~.:::=-------+---+-----l 5 -t-ffe-~-+---?F--+----+--~=-=-+----~~~ o ~=-=---+---+----f-___c--~--=&--+--~ 0 10 20 30 40 Time (min) -e-Qpre -fr-Qpost --9-Qweir 50 60 S OUTH DRAIN AGE AREA Rout ing 100 Year Detention Pond Bottom Width {ft} 40 Tc {min) Length {ftl 16 16 620 SideSl011es Rectangular W eir Maximum Conditions Peak Flows {cfs} Run Rise Bottom Width {ft} Height Qweir 27.56 66.48 3 1 1.65 2 .54 13.38 Tc Qpre Qpost Vine . Vtotal Ax-sec H Qweir sldt Vst orage Ax-sec Hstorage {min} Jrul.. Jrul.. _ML _ML _...{& _filL Jrul.. ~ _...{& __!f!L 0 0 .00 0 .00 0 .0 0 .0 0 .0 0 .00 0 .00 0 .0 0 .0 0.0 0 .00 1 1 .72 4 .16 249.3 249.3 0 .4 0 .0 1 0 .00 2.1 124.5 0 .2 0 .0 1 2 3.45 8 .31 498.6 623.1 1.0 0 .03 0.02 8 .3 497.8 0 .8 0 .02 3 5 .17 12.47 747.9 1245.7 2 .0 0 .05 0.05 18.6 1118.9 1.8 0 .0 4 4 6 .89 16.62 997.2 2116.1 3 .4 0 .08 0 .12 33.1 1986.3 3 .2 0 .08 5 8 .61 20.78 1246.5 3232.9 5 .2 0 .13 0.22 51 .6 3098.2 5.0 0 .12 6 10.34 24.93 1495.8 4594.0 7.4 0 .18 0 .36 74.2 4451 .9 7 .2 0 .18 7 12.06 29.09 1745.1 6197.1 10.0 0 .25 0 .56 100.7 6044.6 9 .7 0 .24 8 13.78 33.24 1994.4 8039.1 13.0 0 .32 0 .82 131 .2 7873.0 12.7 0 .31 9 15.50 37.40 2243.8 10116.8 16.3 0.40 1.13 165.6 9933.7 16.0 0 .39 10 17 .23 41 .55 2493.1 12426.7 20.0 0.48 1.51 203.7 12222.8 19 .7 0.48 11 18.95 45.71 2742.4 14965.2 24.1 0 .58 1.95 245.6 14736.8 23.8 0 .57 12 20.67 49.86 2991.7 17728.4 28.6 0 .68 2.45 291 .2 17471 .6 28.2 0 .67 13 22.39 54.02 3241.0 20712.6 33.4 0 .79 3.02 340.4 20423.7 32.9 0 .78 14 24.12 58.17 3490.3 23914.0 38.6 0 .90 3.64 393.2 23589.4 38.0 0 .89 15 2 5 .84 62.33 3739.6 27329.0 44 .1 1.02 4 .32 449.4 26965.3 43.5 1.0 1 16 2 7 .56 66.48 3988.9 30954.2 49.9 1.15 5 .06 509.1 30548.1 49.3 1.14 17 26.70 64.40 3864.2 34412.4 55.5 1.27 5 .76 569.2 341 50.3 55.1 1.26 18 25.84 62.33 3739.6 37889.9 61 .1 1.38 6 .46 626.4 37585.6 60.6 1.37 19 24.98 6 0 .25 3614.9 41200.6 66.5 1.49 7 .13 680.9 40855.1 65.9 1.48 20 24.12 58.17 3490.3 44345.4 71 .5 1.60 7 .76 732.7 43961 .0 70.9 1.58 21 23.25 56.0 9 3365.6 47326.7 76.3 1.69 8.35 781 .8 46905.7 75.7 1.68 22 22.39 54.02 3241 .0 50146.7 80.9 1.78 8.90 828.2 49691.4 80.1 1.77 23 21.53 51 .94 311 6.3 52807.7 85.2 1.87 9.42 872.0 52320.5 84.4 1.85 24 20.67 49.86 2991 .7 55312.2 89.2 1.95 9.89 913.3 54795.2 88.4 1.93 25 19 .81 47.78 2867.0 57662.3 93.0 2 .02 10 .33 952.0 57117.8 92.1 2 .00 26 18 .95 45.71 2742.4 59860.1 96.5 2.09 10.74 988.2 59290.3 95.6 2 .07 27 18.09 43.63 2617.7 61908.0 99.9 2 .15 11 .11 1021.9 61314.7 98.9 2.13 28 17.23 41 .55 2493.1 63807.7 102.9 2.21 11.45 1053.2 63193.0 101 .9 2.19 29 16 .36 39.47 2368.4 65561 .4 105.7 2 .26 11 .77 1082.1 64927.2 104.7 2 .24 30 15 .50 37.40 2243.8 67170.9 108.3 2 .31 12 .05 1108.6 66518.9 107.3 2.29 3 1 14 .64 35.32 2119.1 68638.0 110.7 2 .35 12 .30 1132.8 67969.9 109.6 2 .33 32 13 .78 33.24 1994.4 69964.4 1 12.8 2 .39 12 .53 1154.7 69281.9 111 .7 2 .37 33 12 .92 31 .16 1869.8 71151 .7 114.8 2.43 12.73 1174.3 70456.4 113.6 2.41 34 12.06 29.0 9 1745.1 72201 .6 116.5 2.46 12.90 1191 .6 71495.0 115.3 2.44 35 11 .20 27.0 1 1620.5 73115.5 117.9 2.49 13.05 1206.7 72399.2 116.8 2 .46 36 10.34 24.93 1495.8 73895.0 119.2 2 .51 13.18 1219.5 73170.3 118.0 2.49 37 9.47 22.85 73170.3 118.0 2 .49 13.06 1230.3 73816.5 119.1 2 .51 38 8 .61 2 0 .78 73816.5 119.1 2 .51 13.17 1239.0 74338.4 119.9 2 .52 39 7.75 18.70 74338.4 119.9 2 .52 13.25 1245.5 74729 .9 120 .5 2 .53 40 6 .89 16.62 74729.9 120.5 2 .53 13.32 1249.9 74992.3 121 .0 2 .54 41 6 .03 14.54 74992.3 121.0 2.54 13.36 1252.1 75126.9 121 .2 2 .54 42 5 .17 12.47 75126.9 121 .2 2 .54 13.38 1252.2 75134.9 121 .2 2 .54 43 4 .3 1 10.39 75134.9 12 1.2 2 .54 13 .38 1250.3 75017.5 121 .0 2 .54 44 3.45 8 .3 1 75017.5 121.0 2 .54 13 .36 1246.3 74776.0 120.6 2 .53 45 2.58 6 .23 74776.0 120.6 2 .53 13.33 1240.2 74411 .6 120.0 2 .52 46 1.72 4 .16 74411 .6 120.0 2.52 13.27 1232.1 73925.5 119.2 2.51 47 0.86 2 .08 73925.5 119.2 2 .51 13.19 1222.0 73318.9 118.3 2 .49 48 0.00 0 .00 7331 8 .9 118.3 2 .49 13.09 1209.9 72593.0 117.1 2 .47 49 72593.0 117.1 2.47 12.97 1196.9 71811.4 115.8 2.45 50 71811.4 115.8 2.45 12.84 1184.0 71037.3 114.6 2 .42 51 71037.3 114.6 2.42 12.71 1171.2 70270.9 113.3 2 .40 52 70270 .9 113.3 2 .40 12.58 1158.5 695 12.4 112.1 2 .38 53 69512.4 112.1 2 .38 12.45 1146.0 68761 .5 110.9 2 .36 54 68761 .5 110.9 2 .36 12.32 1133.6 680 18.4 10 9.7 2 .33 55 68018.4 109.7 2.33 12.19 1121.4 67283.0 108.5 2 .31 56 67283.0 108.5 2.31 12.07 11 09 .3 66555 .2 107.3 2 .29 57 66555.2 107.3 2 .29 11 .94 1097.3 65835.0 106.2 2.27 58 65835 .0 106.2 2 .27 11 .81 1085.4 65122.4 105 .0 2 .25 59 65122.4 105.0 2.25 11 .69 1073.6 64417.4 103.9 2.23 60 64417.4 103.9 2 .23 11 .56 1062.0 6 3719.9 102.8 2 .20 ...-. South Hydrograph 100 Year Storm 70 -.---------.------,---------r-----r-----,----------, 60 -+-----4-~---+---+----+---+----1 50 -+----+----+-----+---+-----1---- (/) 40 -+-------++----+---_____,____.--~---+---------< 0 ...._.... 0 30 20 -r---r--+-=;~--+--~-+--~+----r---- 10 +-+--P--+---+-=_.<=--+-~~~--+--~ o ~~=-+----+--------+---+----~--+--~ 0 10 20 30 40 50 60 Time (min) ----<>----Qpre -B-Qpost -----Qweir SOUTH DRAINAOE AREA Rout ing 50Year Detention Pond Bottom Width (ft } 40 Tc !min) Length (ft) 16 16 620 SideSloi:ies Rectangular Weir Maximum Conditions Peak Flows (cfs} Rise Run Bottom Width (ft} Height Qweir 27.56 63.72 3 1 1.65 2 .45 12.87 Tc Qpre Qpost Vine . Vtotal Ax-sec H Qweir s/dt Vstorage Ax-sec Hstorage (min} $ffil_ $ffil_ _1£fL _1£fL _JfilL _filL $ffil_ __(f!L _JfilL ____@_ 0 0 .00 0 .00 0 .0 0 .0 0.0 0 .00 0 .00 0 .0 0 .0 0 .0 0 .00 1 1.72 3.98 239.0 239.0 0.4 0 .01 0 .00 2.0 119.3 0 .2 0 .00 2 3.45 7 .97 477.9 597.2 1.0 0 .02 0 .02 8 .0 477.1 0 .8 0 .02 3 5 .17 11 .95 716.9 1194.0 1.9 0 .05 0 .05 17.9 1072.5 1.7 0 .04 4 6 .89 15.93 955 .8 2028.3 3.3 0.08 0 .11 31 .7 1904.0 3 .1 0 .08 5 8 .61 19.91 1194.8 3098.8 5 .0 0 .12 0 .20 49.5 2969.9 4.8 0 .12 6 10.34 23.90 1433.7 4403.6 7.1 0.18 0 .34 71.1 4267.7 6 .9 0 .17 7 12.06 27.88 1672.7 5940.4 9.6 0 .24 0.53 96.6 5794.8 9.3 0.23 8 13.78 31 .86 1911.6 7706.4 12.4 0 .30 0 .77 125.8 7548.0 12.2 0.30 9 15 .50 35.84 2150.6 9698.6 15.6 0 .38 1.07 158.7 9524.0 15.4 0 .37 10 17.23 39.83 2389.5 11913.6 19.2 0 .46 1.42 195.3 11719.4 18.9 0 .46 11 18 .95 43.8 1 2628.5 14347.9 23.1 0 .56 1.84 235.5 14130.5 22.8 0 .55 12 2 0 .67 47.79 2867.4 16997.9 27.4 0 .65 2 .32 279.2 16753.6 27.0 0 .6 4 13 22.39 51 .77 3106.4 19860.0 32.0 0 .76 2 .86 326.4 19585.3 31 .6 0 .75 14 2 4.12 55.76 3345.4 22930.7 37.0 0 .87 3.45 377.0 22622.0 36.5 0 .86 15 2 5.84 59.74 3584.3 26206.3 42.3 0 .98 4.10 431 .0 25860.3 41 .7 0 .97 16 27.56 63.72 3823.3 29683.5 47.9 1.11 4.80 488.3 29297.1 47.3 1.09 17 26.70 61 .73 3703.8 33000 .9 53.2 1.22 5.47 545.9 32752.5 52.8 1.21 18 25.84 59.74 3584.3 36336.8 58.6 1.33 6.15 600.8 36048.0 58.1 1.32 19 24.98 57.75 3464.8 39512.8 63.7 1.44 6 .79 653.1 39184.4 63.2 1.43 20 24.12 55.76 3345.4 42529.8 68.6 1.54 7.40 702.7 42163.9 68.0 1.53 21 23.25 53.76 3225.9 45389.8 73.2 1.63 7.97 749.8 44988.6 72.6 1.62 22 22.39 51 .77 3106.4 48095.0 77.6 1.72 8 .50 794.3 47660.6 76 .9 1.70 23 21.53 49.78 2986.9 50647.6 81 .7 1.80 9.00 836.4 50182.3 80.9 1.78 24 20.67 47.79 2867.4 53049.7 85.6 1.88 9.46 875.9 52555.6 84.8 1.86 25 19 .8 1 45.80 2748.0 55303.6 89.2 1.95 9 .89 913 .0 54782.7 88.4 1.93 26 18 .95 43.8 1 2628.5 57411 .2 92 .6 2.01 10 .29 947.8 56865.6 9 1.7 1.99 27 18.09 41 .82 2509.0 59374.6 95 .8 2.07 10 .65 980.1 58806.2 94.8 2 .05 28 17 .23 39.83 2389.5 61195.7 98.7 2 .13 10 .98 1010.1 60606.4 97.8 2.1 1 29 16 .36 37.83 2270.1 62876.5 101 .4 2.18 11 .29 1037.8 62268.0 100.4 2.16 30 15 .50 35.84 2150.6 64418.6 103.9 2 .23 11 .56 1063.2 63792.8 102.9 2.21 31 14.64 33.85 2031 .1 65823.9 106.2 2.27 11 .81 1086.4 65182.4 105.1 2.25 32 13.78 31 .86 1911.6 67094.0 108.2 2 .31 12.03 1107.3 66438.4 107.2 2.29 33 12.92 29.87 1792.2 68230.6 110.0 2.34 12.23 1126.0 67562.4 109 .0 2.32 34 12 .06 27.88 1672.7 69235.1 111 .7 2 .37 12.40 1142.6 68555.9 110.6 2.35 35 11 .20 25.89 1553.2 70109.1 113.1 2.40 12 .55 1157.0 69420.2 112.0 2 .38 36 10.34 23.90 1433.7 70854.0 114.3 2.42 12.68 1169.3 70156.9 113.2 2.40 37 9.47 21 .90 70156.9 113.2 2.40 12 .56 1179.6 70773.8 114.2 2 .42 38 8.61 19.91 70773.8 114.2 2.42 12.66 1187.9 71271 .6 115.0 2.43 39 7 .75 17.92 71271 .6 115.0 2.43 12.75 1194.1 71644.4 115.6 2 .44 40 6 .89 15.93 71644.4 11 5 .6 2.44 12 .81 11 98.2 71 893.2 11 6 .0 2.45 4 1 6 .03 13.94 71893.2 116.0 2 .45 12 .85 1200.3 72019.5 116.2 2 .45 42 5 .17 11 .95 72019.5 116.2 2 .45 12 .87 1200.4 72024.4 11 6 .2 2.45 43 4 .3 1 9.96 72024.4 116.2 2 .45 12 .87 1198.5 7 1909.2 116.0 2 .45 44 3 .45 7 .97 7190 9 .2 116.0 2.45 12.85 1194.6 71675.1 115.6 2.44 45 2 .58 5 .97 71675.1 115.6 2.44 12.81 1188.7 71323.2 115.0 2 .43 46 1.72 3 .98 71323.2 115.0 2.43 12 .76 1180.9 70854.8 114.3 2.42 47 0 .86 1.99 70854.8 114.3 2.42 12.68 1171.2 70271 .1 113.3 2.40 48 0 .00 0 .00 70271 .1 113.3 2 .40 12.58 1159.6 69573.2 112.2 2.38 49 69573.2 112.2 2 .38 12.46 1147.0 68822.0 111 .0 2.36 50 68822.0 111 .0 2 .36 12.33 1134.6 68078.3 109.8 2 .34 51 68078.3 109.8 2 .34 12.20 1122.4 67342.2 108.6 2.31 52 67342.2 108.6 2.31 12.08 1110.2 66613.8 107.4 2 .29 53 6661 3.8 107.4 2.29 11 .95 1098.2 65893.1 106.3 2.27 54 65893.1 106.3 2.27 11 .82 1086.3 65179.9 105 .1 2.25 55 65179.9 105.1 2 .25 11 .70 1074.6 64474.2 104.0 2.23 56 64474.2 104.0 2 .23 11 .57 1062.9 63776.1 102.9 2.21 57 63776.1 102.9 2 .21 11 .45 1051.4 63085.4 101 .8 2.19 58 63085.4 101 .8 2 .19 11 .33 1040.0 62402 .2 100.6 2 .16 59 62402.2 100.6 2 .16 11 .20 1028.8 61726.3 99.6 2 .14 60 61726.3 99.6 2 .14 11.08 1017.6 6 1057.8 98.5 2 .12 70 60 50 ...-... ~ 40 0 ..._.... 0 30 20 10 0 0 10 South Hydrograph 50 Year Storm 20 30 40 Time (min) ~ Qpre -e-Qpost ~ Qweir 50 60 SOUTH DRAINAOE AREA Routing 25 Year Detention Pond Bottom Width {ft) 40 Tc {min) Length (ft) 16 16 620 SideSl01:1es Rectangular Weir Maximum Conditions Peak Flows {cfs) Rise Run Bottom Width {ft) Height Qweir 27.56 56.22 3 1 1.65 2.20 11.42 Tc Qpre Qpost Vine. Vtotal Ax-sec H Qweir s/dt Vstorage Ax-sec Hstorage (min) jg& jg& _{ffL _{ffL __.(fil)._ _®_ jg& --____(g)__ __.(fil)._ ---1ftL 0 0.00 0.00 0.0 0.0 0.0 0.00 0.00 0.0 0.0 0.0 0.00 1 1.72 3.51 210.8 210.8 0.3 0.01 0.00 1.8 105.3 0.2 0.00 2 3.45 7.03 421.7 527.0 0.8 0.02 0.01 7.0 421.0 0.7 0.02 3 5.17 10.54 632.5 1053.5 1.7 0.04 0.04 15.8 946.4 1.5 0.04 4 6.89 14.06 843.3 1789.8 2.9 0.07 0.09 28.0 1680.4 2.7 0.07 5 8.61 17.57 1054.2 2734.5 4.4 0.11 0.17 43.7 2621.3 4.2 0.10 6 10.34 21.08 1265.0 3886.3 6.3 0.15 0.29 62.8 3767.2 6.1 0.15 7 12.06 24.60 1475.8 5243.1 8.5 0.21 0.44 85.3 5115.9 8.3 0.20 8 13.78 28.11 1686.7 6802.5 11.0 0.27 0.64 111.1 6664.6 10.7 0.26 9 15.50 31.63 1897.5 8562.1 13.8 0.34 0.89 140.2 8410.6 13.6 0.33 10 17.23 35.14 2108.4 10518.9 17.0 0.41 1.20 172.5 10350.8 16.7 0.41 11 18.95 38.65 2319.2 12670.0 20.4 0.49 1.55 208.0 12482.2 20.1 0.49 12 20.67 42.17 2530.0 15012.2 24.2 0.58 1.96 246.7 14801.5 23.9 0.57 13 22.39 45.68 2740.9 17542.4 28.3 0.67 2.42 288.4 17305.6 27.9 0.66 14 24.12 49.19 2951.7 20257.3 32.7 0.77 2.93 333.2 19991.3 32.2 0.76 15 25.84 52.71 3162.5 23153.9 37.3 0.88 3.49 380.9 22855.6 36.9 0.87 16 27.56 56.22 3373.4 26229.0 42.3 0.98 4.10 431.6 25895.6 41.8 0.97 17 26.70 54.47 3267.9 29163.5 47.0 1.09 4.69 482.5 28952.3 46.7 1.08 18 25.84 52.71 3162.5 32114.8 51.8 1.19 5.29 531.1 31868.0 51.4 1.18 19 24.98 50.95 3057.1 34925.1 56.3 1.28 5.86 577.4 34643.3 55.9 1.27 20 24.12 49.19 2951.7 37595.0 60.6 1.37 6.40 621.3 37279.8 60.1 1.36 21 23.25 47.44 2846.3 40126.0 64.7 1.46 6.91 663.0 39779.2 64.2 1.45 22 22.39 45.68 2740.9 42520.1 68.6 1.54 7.40 702.4 42143.5 68.0 1.52 23 21.53 43.92 2635.4 44779.0 72.2 1.61 7.85 739.6 44374.4 71.6 1.60 24 20.67 42.17 2530.0 46904.4 75.7 1.68 8.27 774.6 46473.8 75.0 1.67 25 19.81 40.41 2424.6 48898.4 78.9 1.74 8.66 807.4 48443.3 78.1 1.73 26 18.95 38.65 2319.2 50762.5 81.9 1.80 9.02 838.1 50284.8 81.1 1.79 27 18.09 36.90 2213.8 52498.5 84.7 1.86 9.36 866.7 51999.9 83.9 1.84 28 17.23 35.14 2108.4 54108.2 87.3 1.91 9.66 893.2 53590.3 86.4 1.89 29 16.36 33.38 2002.9 55593.2 89.7 1.96 9.95 917.6 55057.6 88.8 1.94 30 15.50 31.63 1897.5 56955.2 91.9 2.00 10.20 940.1 56403.4 91.0 1.98 31 14.64 29.87 1792.1 58195.5 93.9 2.04 10.43 960.5 57629.2 93.0 2.02 32 13.78 28.11 1686.7 59315.9 95.7 2.07 10.64 978.9 58736.4 94.7 2.05 33 12.92 26.35 1581.3 60317.7 97.3 2.10 10.82 995.4 59726.4 96.3 2.08 34 12.06 24.60 1475.8 61202.3 98.7 2.13 10.99 1010.0 60600.7 97.7 2.11 35 11.20 22.84 1370.4 61971.1 100.0 2.15 11.12 1022.7 61360.6 99.0 2.13 36 10.34 21.08 1265.0 62625.6 101.0 2.17 11.24 1033.5 62007.2 100.0 2.15 37 9.47 19.33 62007.2 100.0 2.15 11.13 1042.5 62548.3 100.9 2.17 38 8.61 17.57 62548.3 100.9 2.17 11.23 1049.7 62984.4 101.6 2.18 39 7.75 15.81 62984.4 101.6 2.18 11.31 1055.2 63309.8 102.1 2.19 40 6.89 14.06 63309.8 102.1 2.19 11.37 1058.8 63525.6 102.5 2.20 41 6.03 12.30 63525.6 102.5 2.20 11.40 1060.6 63633.2 102.6 2.20 42 5.17 10.54 63633.2 102.6 2.20 11.42 1060.6 63633.6 102.6 2.20 43 4.31 8.78 63633.6 102.6 2.20 11.42 1058.8 63527.9 102.5 2.20 44 3.45 7.03 63527.9 102.5 2.20 11.40 1055.3 63317.5 102.1 2.19 45 2.58 5.27 63317.5 102.1 2.19 11.37 1050.1 63003.3 101.6 2.18 46 1.72 3.51 63003.3 101.6 2.18 11.31 1043.1 62586.5 100.9 2.17 47 0.86 1.76 62586.5 100.9 2.17 11.24 1034.5 62068.2 100.1 2.15 48 0.00 0.00 62068.2 100.1 2.15 11.14 1024.2 61449.6 99.1 2.14 49 61449.6 99.1 2.14 11.03 1013.1 60784.4 98.0 2.12 50 60784.4 98.0 2.12 10.91 1002.1 60126.2 97.0 2.10 51 60126.2 97.0 2.10 10.79 991.3 59475.3 95.9 2.08 52 59475.3 95.9 2.08 10.67 980.5 58831.5 94.9 2.06 53 58831.5 94.9 2.06 10.55 969.9 58194.9 93.9 2.04 54 58194.9 93.9 2.04 10.43 959.4 57565.4 92.8 2.02 55 57565.4 92.8 2.02 10.32 949.0 56943.0 91.8 2.00 56 56943.0 91.8 2.00 10.20 938.8 56327.5 90.9 1.98 57 56327.5 90.9 1.98 10.08 928.6 55719.0 89.9 1.96 58 55719.0 89.9 1.96 9.97 918.6 55117.4 88.9 1.94 59 55117.4 88.9 1.94 9.86 908.7 54522.6 87.9 1.92 60 54522.6 87.9 1.92 9.74 898.9 53934.6 87.0 1.90 ...-... ~ South Hydrograph 25 Year Storm 60 ·~-~--~-~--~-~---.. 50 -+----+--+--->.+------+---+----+--~ 40 -+----+-."-----+-------+---+----+--~ -£.30 -+--~-+--+-~~-+-~~~~-+-~~-+-~~ a 20 +----+--t--,~-+---==---+--~+----r--~ 10 +----¥L+:_+_~~-!-~-=--~~~~~~~~ 0 ~~=-+~-~-f-~~+--~--+-~~--+-~~ 0 10 20 30 40 50 60 Time (min) ~ Qpre ----e-Qpost --Qweir SOUTH DRAINAGE AREA Routing 10Year Detention Pond Bottom Width (ft) 40 Tc(min) Length (ftl 16 16 620 SideSloges Rectangular Weir Maximum Conditions Peak Flows (cfs) Rise Run Bottom Width (ft) Height Qweir 27.56 49.10 3 1 1.65 1.96 9.97 Tc Qpre Qpost Vine. Vtotal Ax-sec H Qweir s/dt Vstorage Ax-sec Hstorage (min) ..M& ..M& __@_ __@_ _{fil}_ --«tL _{g& ----'9f)_ _{fil}_ -1f!L 0 0.00 0.00 0.0 0.0 0.0 0.00 0.00 0.0 0.0 0.0 0.00 1 1.72 3.07 184.1 184.1 0.3 0.01 0.00 1.5 92.0 0.1 0.00 2 3.45 6.14 368.2 460.2 0.7 0.02 0.01 6.1 367.7 0.6 0.01 3 5.17 9.21 552.4 920.1 1.5 0.04 0.03 13.8 826.6 1.3 0.03 4 6.89 12.27 736.5 1563.1 2.5 0.06 0.07 24.5 1467.8 2.4 0.06 5 8.61 15.34 920.6 2388.4 3.9 0.10 0.14 38.2 2290.0 3.7 0.09 6 10.34 18.41 1104.7 3394.7 5.5 0.14 0.23 54.9 3291.5 5.3 0.13 7 12.06 21.48 1288.9 4580.3 7.4 0.18 0.36 74.5 4470.4 7.2 0.18 8 13.78 24.55 1473.0 5943.3 9.6 0.24 0.53 97.1 5824.5 9.4 0.23 9 15.50 27.62 1657.1 7481.6 12.1 0.30 0.74 122.5 7351.6 11.9 0.29 10 17.23 30.69 1841.2 9192.8 14.8 0.36 0.99 150.8 9049.0 14.6 0.36 11 18.95 33.76 2025.4 11074.3 17.9 0.43 1.29 181.9 10914.0 17.6 0.43 12 20.67 36.82 2209.5 13123.5 21.2 0.51 1.63 215.7 12944.1 20.9 0.50 13 22.39 39.89 2393.6 15337.7 24.7 0.59 2.02 252.3 15136.3 24.4 0.58 14 24.12 42.96 2577.7 17714.0 28.6 0.68 2.45 291.5 17487.9 28.2 0.67 15 25.84 46.03 2761.9 20249.7 32.7 0.77 2.93 333.3 19996.2 32.3 0.76 16 27.56 49.10 2946.0 22942.2 37.0 0.87 3.45 377.6 22658.6 36.5 0.86 17 26.70 47.57 2853.9 25512.5 41.1 0.96 3.96 422.3 25336.1 40.9 0.95 18 25.84 46.03 2761.9 28097.9 45.3 1.05 4.48 464.8 27890.7 45.0 1.04 19 24.98 44.50 2669.8 30560.5 49.3 1.14 4.98 505.4 30322.9 48.9 1.13 20 24.12 42.96 2577.7 32900.6 53.1 1.22 5.45 543.9 32633.9 52.6 1.21 21 23.25 41.43 2485.7 35119.5 56.6 1.29 5.90 580.4 34825.0 56.2 1.28 22 22.39 39.89 2393.6 37218.6 60.0 1.36 6.33 615.0 36897.9 59.5 1.35 23 21.53 38.36 2301.5 39199.4 63.2 1.43 6.73 647.6 38853.8 62.7 1.42 24 20.67 36.82 2209.5 41063.3 66.2 1.49 7.10 678.2 40694.4 65.6 1.48 25 19.81 35.29 2117.4 42811.9 69.1 1.55 7.45 707.0 42421.2 68.4 1.53 26 18.95 33.76 2025.4 44446.6 71.7 1.60 7.78 733.9 44035.6 71.0 1.59 27 18.09 32.22 1933.3 45968.9 74.1 1.65 8.08 759.0 45539.0 73.5 1.64 28 17.23 30.69 1841.2 47380.3 76.4 1.70 8.36 782.2 46933.0 75.7 1.68 29 16.36 29.15 1749.2 48682.2 78.5 1.74 8.62 803.6 48218.9 77.8 1.72 30 15.50 27.62 1657.1 49876.0 80.4 1.77 8.85 823.3 49398.0 79.7 1.76 31 14.64 26.08 1565.0 50963.1 82.2 1.81 9.06 841.2 50471.8 81.4 1.79 32 13.78 24.55 1473.0 51944.8 83.8 1.84 9.25 857.4 51441.5 83.0 1.82 33 12.92 23.02 1380.9 52822.4 85.2 1.87 9.42 871.8 52308.4 84.4 1.85 34 12.06 21.48 1288.9 53597.2 86.4 1.89 9.57 884.6 53073.7 85.6 1.88 35 11.20 19.95 1196.8 54270.5 87.5 1.91 9.70 895.6 53738.6 86.7 1.90 36 10.34 18.41 1104.7 54843.4 88.5 1.93 9.80 905.1 54304.4 87.6 1.91 37 9.47 16.88 54304.4 87.6 1.91 9.70 913.0 54777.9 88.4 1.93 38 8.61 15.34 54777.9 88.4 1.93 9.79 919.3 55159.8 89.0 1.94 39 7.75 13.81 55159.8 89.0 1.94 9.86 924.1 55444.7 89.4 1.95 40 6.89 12.27 55444.7 89.4 1.95 9.92 927.2 55633.8 89.7 1.96 41 6.03 10.74 55633.8 89.7 1.96 9.95 928.8 55728.1 89.9 1.96 42 5.17 9.21 55728.1 89.9 1.96 9.97 928.8 55728.7 89.9 1.96 43 4.31 7.67 55728.7 89.9 1.96 9.97 927.3 55636.8 89.7 1.96 44 3.45 6.14 55636.8 89.7 1.96 9.95 924.2 55453.3 89.4 1.95 45 2.58 4.60 55453.3 89.4 1.95 9.92 919.7 55179.3 89.0 1.94 46 1.72 3.07 55179.3 89.0 1.94 9.87 913.6 54815.8 88.4 1.93 47 0.86 1.53 54815.8 88.4 1.93 9.80 906.1 54363.9 87.7 1.92 48 0.00 0.00 54363.9 87.7 1.92 9.71 897.1 53824.6 86.8 1.90 49 53824.6 86.8 1.90 9.61 887.4 53244.9 85.9 1.88 50 53244.9 85.9 1.88 9.50 877.9 52671.6 85.0 1.86 51 52671.6 85.0 1.86 9.39 868.4 52104.9 84.0 1.85 52 52104.9 84.0 1.85 9.28 859.1 51544.8 83.1 1.83 53 51544.8 83.1 1.83 9.17 849.9 50991.1 82.2 1.81 54 50991.1 82.2 1.81 9.07 840.7 50444.0 81.4 1.79 55 50444.0 81.4 1.79 8.96 831.7 49903.2 80.5 1.78 56 49903.2 80.5 1.78 8.85 822.8 49368.7 79.6 1.76 57 49368.7 79.6 1.76 8.75 814.0 48840.6 78.8 1.74 58 48840.6 78.8 1.74 8.65 805.3 48318.6 77.9 1.73 59 48318.6 77.9 1.73 8.55 796.7 47802.8 77.1 1.71 60 47802.8 77.1 1.71 8.44 788.2 47293.1 76.3 1.69 South Hydrograph 10 Year Storm 0 ~~~-----1------1----l--~--l--------l 0 10 20 30 40 50 60 Time (min) -e-Qpre -e--Qpost ____.,_ Qweir SOUTH DRAINAOE AREA Routing 5 Year Detention Pond Bottom Width (ft) 40 Tc(min) Length (ft) 16 16 620 SideSl01;1es Rectangular Weir Maximum Conditions Peak Flows (cfs) Rise Run Bottom Width (ft) Height Qweir 24.39 43.47 3 1 1.65 1.76 8.78 Tc Qpre Qpost Vine. Vtotal Ax-sec H Qweir s/dt Vstorage Ax-sec Hstorage (min) lfffil_ lfffil_ ~ ~ _Jfil)_ _(ftl_ lfffil_ --_ML _Jfil)_ ___filL 0 0.00 0.00 0.0 0.0 0.0 0.00 0.00 0.0 0.0 0.0 0.00 1 1.49 2.72 163.0 163.0 0.3 0.01 0.00 1.4 81.4 0.1 0.00 2 2.97 5.43 326.0 407.4 0.7 0.02 0.01 5.4 325.6 0.5 0.01 3 4.46 8.15 489.0 814.6 1.3 0.03 0.03 12.2 731.9 1.2 0.03 4 5.95 10.87 652.0 1383.9 2.2 0.06 0.06 21.7 1299.7 2.1 0.05 5 7.44 13.58 815.0 2114.7 3.4 0.08 0.12 33.8 2027.9 3.3 0.08 6 8.92 16.30 978.0 3005.9 4.8 0.12 0.20 48.6 2915.0 4.7 0.12 7 10.41 19.02 1141.0 4056.0 6.5 0.16 0.30 66.0 3959.6 6.4 0.16 8 11.90 21.73 1304.0 5263.6 8.5 0.21 0.44 86.0 5159.6 8.3 0.20 9 13.39 24.45 1467.0 6626.7 10.7 0.26 0.62 108.6 6513.3 10.5 0.26 10 14.87 27.17 1630.0 8143.3 13.1 0.32 0.83 133.6 8018.2 12.9 0.32 11 16.36 29.88 1793.0 9811.3 15.8 0.38 1.08 161.2 9672.3 15.6 0.38 12 17.85 32.60 1956.0 11628.3 18.8 0.45 1.38 191.2 11473.0 18.5 0.45 13 19.34 35.32 2119.0 13592.0 21.9 0.53 1.71 223.6 13418.0 21.6 0.52 14 20.82 38.03 2282.0 15700.0 25.3 0.61 2.08 258.4 15504.8 25.0 0.60 15 22.31 40.75 2445.0 17949.8 29.0 0.69 2.50 295.5 17731.0 28.6 0.68 16 23.80 43.47 2608.0 20339.0 32.8 0.78 2.95 334.9 20094.2 32.4 0.77 17 23.06 42.11 2526.5 22620.7 36.5 0.86 3.39 374.5 22471.3 36.2 0.85 18 22.31 40.75 2445.0 24916.4 40.2 0.94 3.84 412.3 24740.1 39.9 0.93 19 21.57 39.39 2363.5 27103.6 43.7 1.02 4.28 448.3 26900.7 43.4 1.01 20 20.82 38.03 2282.0 29182.8 47.1 1.09 4.70 482.6 28954.2 46.7 1.08 21 20.08 36.68 2200.5 31154.7 50.2 1.16 5.10 515.0 30901.7 49.8 1.15 22 19.34 35.32 2119.0 33020.7 53.3 1.22 5.47 545.7 32744.3 52.8 1.21 23 18.59 33.96 2037.5 34781.8 56.1 1.28 5.83 574.7 34483.4 55.6 1.27 24 17.85 32.60 1956.0 36439.4 58.8 1.34 6.17 602.0 36120.1 58.3 1.32 25 17.11 31.24 1874.5 37994.7 61.3 1.39 6.48 627.6 37655.8 60.7 1.38 26 16.36 29.88 1793.0 39448.9 63.6 1.44 6.78 651.5 39091.8 63.1 1.42 27 15.62 28.53 1711.5 40803.3 65.8 1.48 7.05 673.8 40429.2 65.2 1.47 28 14.87 27.17 1630.0 42059.2 67.8 1.52 7.30 694.5 41669.4 67.2 1.51 29 14.13 25.81 1548.5 43217.9 69.7 1.56 7.53 713.6 42813.5 69.1 1.55 30 13.39 24.45 1467.0 44280.5 71.4 1.59 7.75 731.0 43862.8 70.7 1.58 31 12.64 23.09 1385.5 45248.4 73.0 1.63 7.94 747.0 44818.5 72.3 1.61 32 11.90 21.73 1304.0 46122.5 74.4 1.65 8.11 761.4 45681.7 73.7 1.64 33 11.16 20.38 1222.5 46904.2 75.7 1.68 8.27 774.2 46453.6 74.9 1.67 34 10.41 19.02 1141.0 47594.6 76.8 1.70 8.40 785.6 47135.2 76.0 1.69 35 9.67 17.66 1059.5 48194.7 77.7 1.72 8.52 795.5 47727.8 77.0 1.71 36 8.92 16.30 978.0 48705.8 78.6 1.74 8.62 803.9 48232.3 77.8 1.72 37 8.18 14.94 48232.3 77.8 1.72 8.53 810.9 48655.0 78.5 1.74 38 7.44 13.58 48655.0 78.5 1.74 8.61 816.6 48996.6 79.0 1.75 39 6.69 12.23 48996.6 79.0 1.75 8.68 820.9 49252.2 79.4 1.75 40 5.95 10.87 49252.2 79.4 1.75 8.73 823.7 49422.8 79.7 1.76 41 5.21 9.51 49422.8 79.7 1.76 8.76 825.2 49509.3 79.9 1.76 42 4.46 8.15 49509.3 79.9 1.76 8.78 825.2 49512.9 79.9 1.76 43 3.72 6.79 49512.9 79.9 1.76 8.78 823.9 49434.4 79.7 1.76 44 2.97 5.43 49434.4 79.7 1.76 8.76 821.2 49274.9 79.5 1.76 45 2.23 4.08 49274.9 79.5 1.76 8.73 817.3 49035.3 79.1 1.75 46 1.49 2.72 49035.3 79.1 1.75 8.69 811.9 48716.5 78.6 1.74 47 0.74 1.36 48716.5 78.6 1.74 8.62 805.3 48319.5 77.9 1.73 48 0.00 0.00 48319.5 77.9 1.73 8.55 797.4 47845.2 77.2 1.71 49 47845.2 77.2 1.71 8.45 788.9 47335.2 76.3 1.69 50 47335.2 76.3 1.69 8.35 780.5 46831.1 75.5 1.68 51 46831.1 75.5 1.68 8.25 772.2 46332.9 74.7 1.66 52 46332.9 74.7 1.66 8.15 764.0 45840.7 73.9 1.65 53 45840.7 73.9 1.65 8.06 755.9 45354.4 73.2 1.63 54 45354.4 73.2 1.63 7.96 747.9 44873.9 72.4 1.61 55 44873.9 72.4 1.61 7.87 740.0 44399.1 71.6 1.60 56 44399.1 71.6 1.60 7.77 732.2 43930.0 70.9 1.58 57 43930.0 70.9 1.58 7.68 724.4 43466.6 70.1 1.57 58 43466.6 70.1 1.57 7.58 716.8 43008.7 69.4 1.55 59 43008.7 69.4 1.55 7.49 709.3 42556.4 68.6 1.54 60 42556.4 68.6 1.54 7.40 701.8 42109.5 67.9 1.52 0 10 South Hydrograph 5 Year Storm 20 30 40 Time (min) ~ Qpre -e--Qpost _,,_ Qweir 50 60 2H X 4W Box Culvert Worksheet for Irregular Channel Project Description Project File Worksheet Flow Element Method c :'Jiaestad\fmw\2580351 d.fm2 2H X 4W Box Culvert lrreguar Chamel Mamng's Formua Solve For Water Elevation Input Data Chamel Slope 0.0500 % Elevation range: 0 .00 ft to 2.00 ft. Station (ft) Elevation (ft) 0.00 0.00 4.00 4.00 0.00 0.00 Discharge Re5Uts Wtd . Mamngs Coefficient Water SLl'face Elevation Flow Area Wetted Perimeter Top Width Height Critical Depth 0.00 2.00 2.00 0.00 18 .77 cfs 0.013 1.88 7.50 7.75 4.00 1.88 0.88 ft ft2 ft ft ft ft Start Station 0.00 Critical Slope 0.004179 ft/ft Velocity 2.50 ft/s Velocity Head 0.10 ft Specific Energy 1.97 ft Froude Number 0.32 Full Flow Capacity 15.60 cf s Flow is subcritical . Munic ipal Development Group End Station 0.00 r:xstrYiJl'ii/5 10:22:42AM Haestad Methods, Inc. 37 Brookside Road Waterbury, CT 06708 (203} 756-1666 Roughness 0.013 FlowMaster v5.0 7 Page 1 of 1 Project Description Project File Worksheet Flow Element Method Solve For Input Data Mamings Coefficient Chamel Slope Diameter Discharge Results Depth Flow Area Wetted Perimeter Top Width Critical Depth Percent Full Critical Slope Velocity Velocity Head Specific Energy Froude Number Maximum Discharge Full Flow Capacity Full Flow Slope Flow is supercritical. Brisben's Drainage (36" RCP) Worksheet for Circular Channel c:\haestad\fmw\2580351 d.fm2 Brisben's Drainage (36" RCP) to South Circuar Chamel Manning's Formua Chamel Depth 0.013 0.7500% 36.00 in 40.23 cfs 22 .1 in 4.56 ft2 5.41 ft 2.92 ft 2.07 ft 61.44 0.005423 ft/ft 8.83 ft/s 1.21 ft 3.06 ft 1.25 62.13 cf s 57.76 cfs 0.003638 ft/ft Municipal Development Group C15/031>15 11:25:52AM Haestad Methods, Inc. 37 Brookside Road Waterbury, CT 06708 (203) 755-1666 FlowMaster v5.07 Page 1 of 1 Project Description Project File Worksheet Flow Element Method Solve For Input Data Mamings Coefficient Chamel Slope Diameter Discharge Resuts Depth Flow Area Wetted Perimeter Top Width Criti.cal Depth Percent Ful Critical Slope Velocity Velocity Head Specific Energy Froude Number Maximum Discharge Full Flow Capacity Full Flow Slope Flow is supercritical. Brisben's Drainage (30" Hancor) Worksheet for Circular Channel c:\haestad\fmw\2580351 d.fm2 Brisben's Drainage (30" Hancor) to South Circuar Chamel Maming's Formua Chamel Depth 0.010 0.7500% 30.00 in 40.23 cfs 21.7 in 3.80 ft2 5.08 ft 2.24 ft 2.13 ft 72.22 0.005328 ft/ft 10.60 ft/s 1.75 ft 3.55 ft 1.44 49.67 cfs 46.18 cf s 0.005693 ft/ft Municipal Development Group CY5/03/'iil5 11 :24:24AM Haestad Methods, Inc . 37 Brookside Road Waterbury, CT06708 {203) 756-1666 FlowMaster v5.07 Page 1 of 1 Project Description Project File Worksheet Flow Element Method Solve For Input Data Mamngs Coefficient Chamel Slope Diameter Discharge Resuts Depth Flow Area Wetted Perimeter Top Width Critical Depth Percent Ful Critical Slope Velocity Velocity Head Specific Energy Froude Number Maximum Discharge Full Flow Capacity Full Flow Slope Flow is supercritical. S. Madison's Drainage (42" RCP) Worksheet for Circular Channel c :\haestad\fmw\2580351 d.fm2 S. Madison's Drainage (42" RCP) to South Circuar Chamel Mamng's Formua Chamel Depth 0.013 0.7200% 42.00 in 60.06 cf s 26.0 in 6.25 ft2 6.34 ft 3.40 ft 2.43 ft 61.86 0.005203 ft/ft 9.61 ft/s 1.44 ft 3.60 ft 1.25 91.83 cf s 85.37 cf s 0.003564 ft/ft Municipal Development Group Cl5J:::J3fg;j 11 :29:38 AM Haestad Methods, Inc. 37 Brookside Road Waterbury, CT 06708 (203) 755-1666 FlowMaster v5.07 Page 1 of 1 Project Description Project File Worksheet Flow Element Method Solve For Input Data Mamings Coefficient Chamel Slope Diameter Discharge Results Depth Flow Area Wetted Perimeter Top Width Critical Depth Percent Full Critical Slope Velocity Velocity Head Specific Energy Froude Number Maximum Discharge Full Flow Capacity Full Flow Slope Flow is supercritical. S . Madison's Drainage (36" Hancor) Worksheet for Circular Channel c:\haestad\fmw\2580351 d.fm2 S . M's Drainage (36" Hancor) to South Circular Chamel Maming's Formula Chamel Depth 0.010 0.7200% 36 .00 in 60 .06 cfs 24.7 in 5.18 ft2 5.86 ft 2.78 ft 2.50 ft 68 .68 0.004654 ft/ft 11.60 ft/s 2.09 ft 4.15 ft 1.50 79 .14 cf s 73.57 cf s 0.004798 ft/ft Municipal Dev elopment G roup C15/CJ3/go 11 :28:12 AM Haestad Methods, Inc. 37 Brookside Road Waterbury, CT 06708 {203) 755-1666 FlowMaste r vS.0 7 Page 1 of 1 Project Description Project File Worksheet Flow Element Method Solve For Input Data Mannings Coefficient Chamel Slope Diameter Discharge Results Depth Flow Area Wetted Perimeter Top Width Critical Depth Percent Full Critical Slope Velocity Velocity Head Specific Energy Froude Number Maximum Discharge Full Flow Capacity Full Flow Slope Flow is supercritical. Proposed (42" RCP)@ Krenek Tap Worksheet for Circular Channel c:\haestad\fmw\2580351 d. fm2 Proposed (42" RCP)@ Krenek Tap Circular Chamel MarYling's Formula Chamel Depth 0.013 0.6100% 42.00 in 65.07 cf s 2.43 ft 7.13 ft2 6.89 ft 3.23 ft 2.53 ft 69.42 0.005504 ft/ft 9.13 ft/s 1.29 ft 3.72 ft 1.08 84.52 cf s 78.57 cf s 0.004183 ft/ft Municipal Development Group C151r::131>15 11:34:51 AM Haestad Methods, Inc. 37 Brookside Road Waterbury, CT 06708 (203) 756-1666 FlowMaster v5.07 Page 1 of 1 Project Description Project File Worksheet Flow Element Method Solve For Input Data Mamings Coefficient Chamel Slope Diameter Discharge Results Depth Flow Area Wetted Perimeter Top Width Critical Depth Percent Full Critical Slope Velocity Velocity Head Specific Energy Froude Number Maximum Discharge Full Flow Capacity Full Flow Slope Flow is supercritical. Proposed (42" Hancor)@ Krenek Tap Worksheet for Circular Channel c:\haestad\fmw\2580351 d.fm2 Proposed (42" Hancor) @ Krenek Tap Circular Chamel Manning's Formula Chamel Depth 0.010 0.6100% 42.00 in 65.07 cfs 2.03 5.78 6.06 3.46 2.53 57.97 ft ft2 ft ft ft 0.003257 ft/ft 11.25 ft/s 1.97 ft 4.00 ft 1.53 109.88 cfs 102.15 cf s 0.002475 ft/ft Municipal Development Group r:J5mfgj 11 :33:1 9AM Haestad Methods, Inc. 37 Brookside Road Waterbury, CT 06708 (203) 756-1666 FlowMaster v5.07 Page 1 of 1 Project Description Project File Worksheet Flow Element Method Solve For Input Data Marrings Coefficient Chamel Slope Diameter Discharge Resuts Depth Flow Area Wetted Perimeter Top Width Critical Depth Percent Ful Critical Slope Velocity Velocity Head Specific Energy Froude Number Maximum Discharge Ful Flow Capacity Full Flow Slope Flow is subcritical. Existing 48" RCP@ .33% on Krenek Tap Worksheet for Circular Channel c :IJiaestad\fmw\2580351 d.fm2 Existing 48" RCP @ .33% on Krenek Tap Circuar Chamel Marring's Formua Chamel Depth 0.013 0.3300% 48.00 in 77.64 cf s 3.08 ft 10.40 ft2 8.58 ft 3.36 ft 2.67 ft 77.12 0.004747 ft/ft 7.47 ft/s 0.87 ft 3.95 ft 0.75 88 .76 cf s 82.51 cf s 0.002922 ft/ft Municipal Development Group C15f00fg5 02:13:09PM Haestad Methods, Inc. 37 Brookside Road Waterbury, CT 06708 (203) 755-1666 FlowMaster v5.0 7 Page 1 of 1 Project Description Project File Worksheet Flow Element Method Solve For Input Data Marrings Coefficient Chamel Slope Diameter Discharge Resuts Depth Flow Area Wetted Perimeter Top Width Critical Depth Percent Fl.ii Critical Slope Velocity Velocity Head Specific Energy Froude Number Maximum Discharge Fl.ii Flow Capacity Fl.ii Flow Slope Flow is subcritical. Existing 48" RCP@ .40% on Krenek Tap Worksheet for Circular Channel c :'haestad\fmw\2580351 d.fm2 Existing 48" RCP @ .40% on Krenek Tap Circuar Chamel Marring's Formua Chamel Depth 0.013 0.4000% 48.00 in 91.84 cfs 3.32 ft 11.15 ft2 9.17 ft 3.01 ft 2.91 ft 82.99 0.005308 ft/ft 8.24 ft/s 1.05 ft 4.37 ft 0.75 97.72 cf s 90.84 cf s 0.004088 ft/ft Municipal Development Group r:::J51(1af>l5 02:15:06PM Haestad Methods, Inc. 37 Brookside Road Waterbury, CT06708 (203) 755-1666 FlowMaster v5.07 Page 1 of 1 CITY OF CO i .I .EGE STATION Post Office Box 9960 110 I f ;,.«B A11 enue February 24, 1997 Windsor Pointe Apartments Attn : Ms . Brenda Jeter , Property Manager 2500 Central Park Lane College Station, Texas 77840 College Sta tion , Texas 7784 2 9960 (409) 764-3500 RE: Drainage at the W indsor Pointe Apartments Dear Ms . Jeter : It has been brought to my attention that the development of your apartment complex has created drainage problems on the adjacent Church of Christ property . Through my inspection of site conditions I noticed a berm near Building 4 and the "Tot Lot" that was not shown on the Grading Plan submitted by Municipal Development Group (MDG), the engineering firm for this project. I have included a copy of MDG 's grading plan with the subject area identified . This berm is impounding water on the adjacent church property and must be corrected immediately . Please notify this office by March 14 , 1997 as to your work schedule and completion date . If you fail to comply with this request , the City will begin enforcement actions . If you have any questions or comments, I can be contacted at (409)764-3570. Steve Homeyer Asst. to th e City Engineer xc : Kent Laza , City Engin ee r ~evelopment Permit No . 282 Hom of Texas Af,,'V\. University / ..... ·. -'· ·~ .... : -.·: -· . r MUNICIPAL DEVELOPMENT GROUP 103 HollimaJt liriv-e Emt •Ca&~ S1arkm, Tam T784C • .J0~9J-5JJ9 • F A.X.: 109-691-1143 Engin~g. Surveying. Pl:wning and Eo:rironmc:ntll Conmltants FA.1:# bf3-2_712-_ NO.PAGE.sTOFOLLOW 3 DATE z.::;-A;y,'f Cf S- TD If there is a problem with this transmission. please call us at 409--0!JJ-5359. M~ -/:-+~ ~z_// ---CONFIIJENTIALIIYNOTICE; Trti.s focsi.mil e message ar.d. accompcmying com.municai7:an and/or oocuments are intended for tfte e::x !u.si'l e ~ co rfidrtr.rial us? of the individual or e7I.tity to wh i ch the message is addressed. f) ~ uJ.tl \ 1ltl'I\ o ~\-\lPro..o SJE-.?PO · ~LX) , IL1 1Jt· .lL.~t.lq . 2{\D(\11J 1 l .~ co~~~~~......,...~~~~~--~~~--~=-~~~ C01<;frn0f, ~ k'n . <Al.1 >,ds-cTJ Gr<-r= c+ ~b lr ~ -:C,-(a?S/r(:dc:h1 r ~ Por'r:ft. , I I " r I . U_;'~I r 'WI" ~ 't~c¢ -.::! . ~( ... ';. ~ ,.nn rm ../ ../ ~ ~ .; I Engineer's Estimate Public Infrastructure Windsor Pointe Subdivision College Station , Brazos County, Texas PREPARED SY: MDG 25 APRIL 1$6 cph JOB ~1 I PUBLJC WATER LJNES Item Desc rir;rjon ~timated Unit Unit Amount No. Quantity Price($) Waterline "A" Sta. 0+-00 to Sta. 8+21 1 12''x12" M.J. Taooina Sleeve ar'ld Valve fur AC Pipe 1 Ee 3 .0:0 I 3CXX) 2 Borin~ w /318" thick 18" steel Encssement w/ Cascade Co. Spacers 70 I LF so 63CO 3 4" x Z' Reducer w/ Z ' M. J. Gata Va/vs & Box 1 Ea 350 3:D 4 12"x4" M .J . Tee & 4" x 2" Reducer w/ 2" M.J. Gate Valve & Sox 1 Ei:1 40) 40J 5 1Z' 11 1/4° M.J. Bend wl Cone. Thrust Blcckino 2 Ea 250 em 6 1voe 1 F .H. w/ all Anl">urtenances 1 Ea 1 oco 1 ECO 7 12"x6" M.J. Tee w/ Cone. Thrust Blockinq 3 Es 25J 7S) 8 S' M .J . Gate V alve w/Box and S' oluo 1 I Ea 320 320 9 12" Water1 ine "A" DR14,COCO,Class 2CO PVC Pipe in Class D Embedment 754 ' LF 23 1 ( 342 i 10 / 12" M.J. Gate Valve wi Box 2 Fa oco 1 &O 11 Z ' Blcw-<iff Asssmblv 1 Ea 350 35) Waterline "8" Sta. 0+00 to Sta. 7+43 12 31B"x1 S' Steel Encasement w/ Cascade MFG. Co. Spacers 56 Lf 36 2 .016 13 6" M .J. Gate Valve wl Bax 1 Ea 300 20J 14 I 6''. 11 1 /4° M.J. Bend w/ Cone. Thrust Blockinq 1 Ea 2CO 2CO 15 S'4'1' M .J . Tee an d s· M.J. Gate Velve w/ Box and w/ C one. Thrust Blockinq 2 Ea 480 9EO 16 S'. 45° M.J. Bend w/Thrust Blockino 1 Ea 2CO 2CO 1 7 6' 22 1 f2° M.J. Bend w/ Thrust Blockinq 1 E"' 2CO 2CO 18 6' 00° M.J. Send w/Thrust Blockinq 1 Ea I 20.'.) 2CO 19 16'' D R14 C....COJ Class 20) PVC Water1ine w / Class D Bsddinq r 43 LF 9.50 tC58 .SJ 20 Remove Exist. 2" Blowoff Assembly & Maka Connection to Exist . 6'' AC WL 1 Es 225 ?'25 Waterline "C" St.a. 0+00 to Sta. 7+25 I 21 6' M .J . Gare Valve and Pluo w/ Cone. Thruet B loekino 1 Ea 200 20J 22 S'xO' M.J. Ts e and S' M.J. Gate Valve and Pluq wl Cone . Thrust Blockinq 2 Ea 480 900 23 6'' 45° M.J. Bend wl Cone. Thrust Blockinq 2 Ea 2CO 40J 24 S' ORI 4 , C9'.JO Class 2CO PVC Waterline w/ Class D Embedrnent 725 I LF 9 .5J 68'37.50 SUBTOTAL 52619 ~) Cl j\i f:t zt £' 6 9 6 0 t XY.:I St : n £6 /S'Z /tl) ' CENTRAL. PAR.K LANE~ STREET AND ORAJNAGE Item Oescrii:;tion Estimated Unit Unit Amount No. Quantity Price($) 1 Concrete Drive Entrance w/ Median and Curb 2 Ea 3.a::o 6aJJ 2 Remove & Disoose of Cone.Walkway in Accord. w/ COCS Snee. N o. 7'U2 8 LF 24 192 3 Construct Sidewalk Ramo in Accordance w/ the DrawinQs 2 Ea &:O 12CD 4 C01"1:sl4".x6' Sdwlk l nclReinf. Steel & Sand Cu:sh.in Accord w/ COGS #402 1 270 LF 16 20320 5 1 1 rz• Dei:th of Type D HMAC in Accord.. wf COCS Scee. #GD6 . Complete & 315 Tons 45 14.175 In-Place lncludino all Materials and Tack or Prime Coat ~ 6 6'' crf Crushed Ume5(one Base Mater.In Accord. WI COGS #'202 Comolete & 1520 Tons '-17.25 ) 26.220 in-Place ./ 7 Lime Stabilized Subarade too' in A=rd.wt COCS #204 4310 I S.Yd 1.65 7112 8 Preoaration of R .O .W . In A=rdance wf COCS Sr:ecification No. 101 4100 S.Yd 0.30 1.230 v 9 Consln.Jct Concrete Curb & Gutter t02 the Locations ShOWT'l on the Drawinas 1,356 LF 8 10.848 Complete & In -Piece in Accordance w/ COCS SoeciT1cation No. 401 10 Pedestian Guard-Rail (@ Location Shown on Owos & in Accord.wt Enclosed 20 LF 1CXJ 2.axJ Detail Sheet. Complete & In-Piece 11 Seedina of R.O.W. for Park Lane in Accordance w/ COCS Spec. No. 700 1 510 S.Yd 0.55 831 v' 12 Subcirade Ume Stabilized to De~h of o'. Usinq 6'% Lime , lnclall Lima 4.310 S.Yd 3 .50 15.C65 & Manic. Comol. & Compact.In-P lace in Accord wt COCS ~ 106 & 204 v 13 Excavation & Proo. Utiliz. Earthwarl< in Accord. wt COCS Spec. No. 103 2680 C .Yd 5.25 14010 14 Type II! Banicade (Fixed) SJ Eg 12.5 7EO 15 Street Licht (C.O .C .S. standard Gatvsni~d) 3 Ea 3292 9 ,8/6 SUBTOTAL 129,908 OFF.SITE DRAJNA GE RCP -Alt.emate "Aw Item Descrip:ion Estimated Unit Uri it Amount I No. Qu21ntity Price ($) )-1 Z H x 4' W Box Culvert w/ Cement Sand Stabilization SS LF 110 I 480 2 Concrete Headwall w/ W inqs & Apron f1 W )( 4' -o' L x 5' H 1 LS 3 s::xJ 3 ,0CO 3 std. Recessed Curb Inlet wf Rina & Cover 1 LS 120J 1 . .2CO 4 Std. Rec~sed Curb Inlet Mocfrfied wf Rinq & Cover 1 LS 2 80.'.J 2.ffiJ 5 Concr ete Junction Boxes 4 Ea 1.&D 72CO 6 ::E' RCP C-7 6 Class II! w/ 8eddinq 512 L F 45 23040 7 42" RCP C-76 Class Ill w/ Bedo1no 586 LF 70 41 ,0ZJ 8 Remove & Replacs Concrete Curb & Gutter 250 LF 22 5.S:O 9 Remove & Replace Concrete Drive 1r:J)(16 (Reola cs w / 6'' Thickness) 19J I SF 2.75 412.5 10 Remove & Reolaca 6 Concrete Walk 25:J LF 10.75 2681.5 1.1 R emove & Reo!ace Barbed Wire Fence 20 LF 6.25 1 ~~ ~ SUBTOTAL 94,965 co o.in ------- - ~) <I Ji( nn £'69 60f' :YY.::I sv:n £6 !£Z.'t0 -- ... Item No. 1 2 3 4 5 6 7 8 9 10 11 12 Item No. 1 2 Item No. 1 2 3 4 OFF-SITE DRAJNAGe ADSIHAHCOR-Alternate ·s· Oescri~on Estimated OuantJtv Z H x 4' W Box Culvert w/ Cement Sand stabilization 68 Concrete Heedivall w/ Winos & Apron S W x 4' -6" L ~ ~· H 1 Std. Recassed Curt> Inlet w/ Ring & Cover 1 std Rec.;ssed Curb Inlet Modified w/ Rino & Cover 1 Concrete Junction Boxes 4 Remove & Reolace Concrsts Curt> & Guttsr 29) Remove & Reolaca Concrete Drive 1a x 15' (Reolace w/ 6'' Thickness) 1SJ Remove & Replacs 6 Concrete Walk 29J Remove & Replace Barred Wire Fence 20 2JJ' Pioe w/ Beddino 512 35' Pioa w/ Bsddino 358 42" Pioe w/ Beddino 228 SUBTOTAL PAJNT STRIPING Descrip:ion Estimated Quantity Whrte Paint Strioino 59J Ysllow Paint strioina en SUBTOTAL SJGNAGE AND PAINT STRJPING SIGNS Descrip:ion I MUTCD Designation Estimate Quantitv Street Name Siqn I SNS 2 Soeed Um it~ Sian I R2-1 124" x 3J"l 1 Stop Siqn I R 1·1 (30'' x 3J") 3 Oesionatad Lane Sion I R3-1 1 (24" x 2JJ') 2 SUBTOTAL Alternate "A'' (RCP) TOTAL Alternate "B" (ADS/HANCOR) TOTAL Unit Unit AmolJllt Price <S1 LF 110 7480 L3 ~.500 ~6CO LS 12Il 1 200 LS 28CO 28CO Ea 1 SCO 72ITJ LF 22 5 .500 SF 275 412.5 LF 10.75 2€87.5 LF 625 125 LF 33.8 173C6 .6 LF 45.66 16346.28 LF 64.11 14617.00 79174 Unit Unit Amount Price($) SF 0.4 236 SF 0.4 24 260 Unit Unit Price Amount Ea 5'.) 100 SI so so Ea b/.~ 17'2.5 Ea so 1ClJ 422.5 $ 262,383.46 CtZt C69 60t IVd s t :t1 £6 /£Z .'t0 \ r Engineer's Estimate "Revised" Public Infrastructure Windsor Pointe Subdivision College Station, Brazos County, Texas PREPARED BY: MDG 08 MAY 1995 eph JOB 2580-00351 p1 ·-· Ir WA I t::tt LINES Item uescnpt1on t:st1mated Unit Unit Amount No. Quantity Price($) Waterline "A" Sta. 0+00 to Sta. 8+21 1 12''x12" M .J . Tapping Sleeve and Valve for AC Pipe 1 Ea · 3,000 3,000 2 Boring w/ 3/8" thick 18" Steel Encasement w/ Cascade Co. Spacers 70 LF 90 6,300 3 4" x 2" Reducer w/ 2" M . J. Gate Valve & Box 1 Ea 350 350 4 12"x4" M .J . Tee & 4" x 2" Reducer w/ 2" M .J . Gate Valve & Box 1 Ea 400 400 5 12", 11 1/4° M .J . Bend w/ Cone. Thrust Blocking 2 Ea 250 500 6 Type 1 F .H . w/ all Appurtenances 1 Ea 1,600 1,600 7 12"x6" M .J . Tee w/ Cone. Thrust Blocking 3 Ea 250 750 8 6" M .J . Gate Valve w/Box and 6" plug 1 Ea 320 320 9 12" Waterline "A" DR14,C900,Class 200 PVC Pipe in Class D Embedment 754 LF 23 17,342 10 12" M .J . Gate Valve w/ Box 2 Ea 900 1,800 11 2" Blow-off Assembly 1 Ea 350 350 Waterline "B" Sta. 0+00 to Sta. 7+43 12 3/8''x16" Steel Encasement w/ Cascade MFG. Co. Spacers 56 LF 36 2,016 13 6" M .J . Gate Valve w/ Box 1 Ea 300 300 14 · 6", 11 1/4° M .J . Bend w/ Cone . Thrust Blocking 1 Ea 200 200 15 6"x6" M .J . Tee and 6" M .J . Gate Valve w/ Box and w/ Cone. Thrust Blocking 2 Ea 480 960 16 6", 45° M .J . Bend w/ Thrust Blocking 1 Ea 200 200 17 6", 22 1/2° M .J . Bend w/ Thrust Blocking 1 Ea 200 200 18 6", 90° M .J . Bend w/ Thrust Blockinq 1 Ea 200 200 19 6" DR14 ,C900,Class 200 PVC Waterline w/ Class D Bedding 743 LF 11 .00 8173.00 20 Remove Exist. 2" Blowoff Assembly & Make Connection to Exist. 6" AC WL 1 Ea 225 225 Waterline "C" Sta. 0+00 to Sta. 7+25 21 6" M.J . Gate Valve and Plug w/ Cone. Thrust Blocking 1 Ea 300 300 22 6"x6" M .J . Tee and 6" M .J . Gate Valve and Plug w/ Cone. Thrust Blocking 2 Ea 480 960 23 6", 45• M .J . Bend w/ Cone. Thrust Blockinq 2 Ea 200 400 24 6" DR14 ,C900;Class 200 PVC Waterline w/ Class D Embedment 725 LF 11 .00 7975 .00 SUBTOTAL 64821 .. !.,. CE1.rRAL t''4tfl\ LAIYc -;:,1ncc{AND !J 0 A•••A~r= Item uescnpt1on 1t:st1matea Unit Unit Amount No. Quantity Price($) , c.;oncrete unve t:ntrance wt Median and Curb 2 t:a 3,uuu o ,uuu 2 Remove & Dispose of Cone.Walkway in Accord . wt COCS Spec. No. 702 8 LF 24 192 3 Construct Sidewalk Ramp in Accordance wt the Drawings 2 Ea 600 1,200 4 Const.4"x6' Sdwlk lncl .Reinf. Steel & Sand Cush.in Accord . wt COCS #402 1,270 LF 16 20,320 5 1 1t2" Depth of Type D HMAC in Accord . wt COCS Soec. #306, Complete 315 Tons 45 14,175 In-Place Including all Materials and Tack or Prime Coat 6 6" of Crushed Limestone Base Mater.In Accord . wt COCS #202, Complete 1,520 Tons 17 .25 26,220 In-Place 7 Lime Stabilized Subgrade to 6" in Accord .wt COCS #204 4,310 S .Yd 1.65 7 , 112 8 · Pre aration of R.O.W., In Accordance wt COCS Specification No. 101 --4;100 S .Yd 0 .30 1,230 9 Construct Concrete Curb & Gutter ta} the Locations Shown on the Drawings 1,356 LF 8 10,848 Complete & In-Place in Accordance wt COCS Specification No. 401 10 Pedestian Guard-Rail @ Location Shown on Dwgs & in Accord .wt Enclosed 20 LF 100 2,000 Detail Sheet, Complete & In-Place - 11 Seeding of R.O .W . for Park Lane in Accordance wt COCS Spec. No. 709 1,510 S .Yd 0 .55 831 12 Suba[ade Lime Stabilized to Depth of 6", Using 6% Lime, Incl.all Lime 4,310 S .Yd 3 .50 15,085 & Manip. Compl. & Compact.In-Place in Accord . wt COCS #s 106 & 204 13 Excavation & Prop . Utiliz. Earthwork in Accord . wt COCS Soec. No. 103 2,680 C .Yd 5 .25 14,070 14 Type Ill Barricade (Fixed) 60 Ea 12.5 750 15 Street Light (C .O .C .S . Standard Galvenized} 3 Ea 3292 9,876 SUBTOTAL 129,908 -t,.1rr-;:,11c !.-~A .'."il.3C tflJt" Alternate -A- I Item 1uescnpt1on !Estimated Unit Unit Amount No. . Quantity Prfce ($} 1 2· H x 4' W ·(jox c.;u1vert wt c.;ement ::>and ::>tab111zat1on 68 LF 110 7 ,480 2 Concrete Headwall wt Wings & Apron 6' W x 4' -6" L x 5' H 1 LS 3,500 3,500 3 Std. Recessed Curb Inlet wt Ring & Cover 1 LS 1,200 1,200 ·4 Std . Recessed Curb Inlet Modified wt Ring & Cover 1 LS 2 ,800 2,800 5 Concrete Junction Boxes 4 Ea 1,800 7 ,200 6 36" RCP C-76 Class Ill wt Bedding 512 LF 45 23 ,040 ·7 42" RCP C-76 Class Ill wt Bedding 586 LF 70 41,020 8 Remove & Replace Concrete Curb & Gutter 250 LF 22 5,500 9 Remove & Replace Concrete Drive 10' x 15' (Replace wt 6" Thickness) 150 SF 2 .75 412.5 10 Remove & Replace 6' Concrete Walk 250 LF 10.75 2687 .5 11 Remove & Replace Barbed Wire Fence 20 LF 6 .25 125 SUBTOTAL 94,965 /. Url"-::il It: !, A'~!::. An<-,L•• ,...;~:-!~Alternate -ts- !Item I uescnpt1on ,, !Estimated ·: ~ No . •·. Quantity , 1 "L" H x 4' w (jox c.;u1vert wt c.;ement ::sana ::stab111zat1on 68 2 Concrete Headwall w/ Wings & Apron 6' W x 4' -6" L x 5' H 1 3 Std. Recessed Curb Inlet w/ Ring & Cover 1 4 Std. Recessed Curb Inlet Modified w/ Ring & Cover 1 5 Concrete Junction Boxes 4 6 Remove & Replace Concrete Curb & Gutter 250 7 Remove & Replace Concrete Drive 10' x 15' (Replace w/ 6" Thickness) 150 8 Remove & Replace 6' Concrete Walk 250 9 Remove & Replace Barbed Wire Fence 20 10 30" Pioe w/ Bedding 512 - 11 36" Pipe w/ Bedding 358 12 42" Pipe w/ Bedding 228 -- SUBTOTAL PAI[!/ I ::i I rur11Yu 11tem .uescnpbon Estimated No. Quantity , vvnne Pamt ::stnpmg :::ll1U '2 Yellow Paint Striping 60 SUBTOTAL •& A AND t'AllV I ::i I rur11Yu ;::m:itv::i -----. item IDescnpt1on I MU fCD Des1gnat1on Estimate No. Quantity 1 Street Name ::;1gn I SNS 2 2 Speed Limit 35 Sign I R2-1 (24" x 30") 1 3 Stop Sign I R1-1 (30" x 30") 3 4 Designated Lane Sign I R3-11 (24" x 30") 2 SUBTOTAL Alternate "A" (RCP) TOTAL Alternate "B" (ADS/HANCOR) TOTAL Unit LF LS LS LS Ea LF SF LF LF LF LF LF Unit ~r SF Unit Ea Ea Ea Ea unit Amount Price($) 110 7,4tiU 3,500 3,500 1,200 1,200 2,800 2,800 1,800 7,200 22 5,500 2 .75 412 .5 10.75 2687 .5 6 .25 125 33.8 17305.6 45.66 16346.28 64.11 14617.08 79,174 unit Amount Price($) U.4 L.lO 0.4 24 260 Unit Amount Price :iu lUU 50 50 57 .5 172.5 50 100 422.5 $ 280,376.50 G 264,585.46~ .. 05 /2l/95 14:5l FAX 409 69J 4~4J .M JJ li MUNICIPAL DEVELOPMENT GROUP 203 Holleman Drive Easr • College Srarion , Texas 778.10 • 409-693-5359 •FAX: 409-693-4243 May 18, 1995 Kent Laza, P .E. City Engineer City of College Station P.O. Box 9960 Engineering, Sllt'lcyin&, Planning and Environm~tal Consult.anlS CoJlege Station, TX 77842-9960 Re: Windsor Pointe Subdivision -Construction Methods for Central Park Lane Kent: We have elected to overexcavate the roadway to a depth of24". This will be backfilled with select material which has a PI of less than 18, which will be compacted in accord with the City Standard. Due to the quality of the replacement fill, we would like your permission to delete the requirement for lime stabilization. Please call if you have questions . Sincerely, North Bardell, P.E. /kw cc: TomLowe 000351-c.11 -11 (2580) CITY OF COLLEGE STATION Post Office Box 9960 1101 Texas Avenue DA TE: May 12, 1995 TO: Greg Taggart Municipal Development Group 203 Holleman Drive East College Station, TX 77840 FROM : Samantha Smith City of College Station P.O . Box 9960 College Station, Texas 77842-9960 (409) 764-3500 College Station, TX 77842-0960 RE : Windsor Pointe Waterline Dea r G reg, ·.• We have reviewed your request to Mark Smith from two weeks ago, and open cutting Southwest Parkway for the Windsor Pointe waterline crossing will not be permitted . As per your conversation with Kent this afternoon , we encourage you to submit a boring plan and we w ill review it. Sincerely, <;;;~9~ Samantha Smith Engineering Assistant Home of Texas Af,M Unive rsity 04 /28 /95 13:06 FAX 409 693 4243 M D G MUNICIPAL DEVELOPlvIENT GROUP 203 Holleman Dri11e &w • Coll~gc Station, Tucu 778-10 • 409-693-5359 •FAX: 409-693-4243 En~ineering. Survcyin~. Plannin~ and Environmental Consultant.<; April 28, 1995 Mark Smith Public Services Department. PO Box 9960 College Station, TX 77840 Re; Windsor Pointe Subdivision/Southwest Parkway Crossing. Dear Mark: We wi11 be constructing the extension of Central Park Lane for this subdivision, and a 12" water line which will parallel that street_ The waterline will have to cross Southwest Parkway. as will the electric conduit which will also be laid along Central Park Lane. Since Southwest Parlcway is slated to be rebuilt within the next 18 to 24 months, we would like your permissions to open cut Southwest Parkway for the construction of these two connections. Obviously, we will conduct the usual traffic safety and traffic flow operations. If necessary, these operations can be conducted at a time of low traffic. What type of plan do you need for this operation? Please feel free to call if you have any questions. Thank You, ~z:y-r Vice President /tm 0003 5l·C .09-1 l('.!.SllO) a'' ·' -1 /, I +t I::. DEVELOPMENT PERMIT PERMIT NO. #282 FOR AREAS OUTSIDE THE SPECIAL FLOOD HAZARD AREA RE: CHAPTER 13 OF THE COLLEGE STATION CITY CODE SITE LEGAL DESCRIPTION: Lot 1 & 2, Windsor Pointe Subdivision SITE ADDRESS: Central Park Lane OWNER: Southwest Pointe Ltd. Kemper Street Cincinatti, Ohio DRAINAGE BASIN: Bee Creek TYPE OF DEVELOPMENT: This permit is valid for clearing and rough grading on the above reference site. Detailed grading has not been approved as of this writing. Contractor shall prevent silt and debris from leaving the site in accordance with the approved plans and the City of College Station Drainage Policy and Design Criteria. Owner and/or contractor shall be responsible for any damage to existing city streets or infrastructure due to heavy machinery and/or equipment. This permit being temporary, is valid only within one hundred and twenty (120) days of the date shown below, and is not intended to allow the complete development of the site as proposed. Any work peiformed after the expiration of this permit is not covered, and is considered unauthorized. 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 submi ted to and approved by the City Engineer in the development permit application for above named project and all of the codes and ordinances of the City of College Sta that apply. ntative 0 ' '05 /95 16: 44 FAX 409 69J 424J MD G -+++ COCS DEVE . ~001 MUNICIPAL DEVELOPMENT GROUR /\~ Engincaing. Surveying, Planning :md Envi:o=cncal Caasultantt ~ FROM .. CONFIDENIIALIIYNOTICE: Tizi.rfccsimilt ~ doCZJmDJIS are "frrtemkd for the aclusiv w mwage is addressed. ~.·: .. ·.;,. .. ' . . . • .. ' ' I 1 1 Ii ' ~ 4 .. • ' Orf1 05 /9 5 16 :44 FAX 409 693 4243 M D G ......... COCS DEVE . 14100 2 !f s CAI "-"'I s c_ f,<.5S -ecf e °' ,,,. (," ~ .-/o .,./t?r. t t w ..,__ ~ {, ·fL~ ~ -fr1'VY'l 5 ' o -F-.? o .P th~ c..(A ( -d c_ -s 0\.. c. o-vt e. e.-y{ {--ra./ p 0. v-k._ l (j }'( c . 1h~ +Y)'..vi w<'~l~ b-e. t:1\._ c_Jtior-J fa.v,tlc::. I~ 1k. F!- 'Th 1.s wa-wl) fro v1 'de_ wo vt:..17 st'"<-«-.b.e:fwee..,,, pat..vc m~ -f + fl;_ ; et s w €I~._ Q..5. .s--f'q c. "<- -M <fk_ ho.,,y(c_...d-e_ ~ -r;~ l( O'V\.. <::. }C; p~~ .s s ~ 'f CfVv? c_.~ c. ~ r-vr i:;t b ~ -Fi>~ f--ri) c_k_ + ~ V"Vt .,r-~of t , / • If CC. 0 .,,-c;) J? <:/o P ~ -<e_ I ~ o .f-fk.. Fi' r i::_ 'D ~ +-. 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": ,,,,. ........ : •.; ;;, :•i:.i ... / ~~ ~ .. / ·-·· .. ~i "~ECIFICATI0Ns".·:"1 \ { \/ 1\ \ . , . \ 0 . I •6'.,I ".,,:• ' " ' ' ' I ' ·1. l.•lO' I -" J I · 'nrRNmo RADIUS REQUIRED FOR . FIRE TRUCKS IN A TEE TURNAROUND \ I g .... " .... I ' ~·~r CITY OF COLLEGE STATION ~ DEPARTMENT OF PUBLIC SERVICES 26D Telals Avenue P.O. Box 9960 CollegeStation. Texas n842-0960 Phone: (409) 764-3690 Fax: (4Q9) 764-3489 FAX COVER SHEET To Fax Number: Date: ~~~~~~ ~~~~~~ Business Vendor: ~~~~~~~~~~~~~~ Attention: fr: N -\-Lo t:ti From~'( '/\.l Extension: 3'6\.-\. 3 No. of Pages (l (Including Cover Sheet) Comments: ' .. Community Policing Contact Report Previoua Contact: ()Yea ~o Location o! Contact: Phone: Rcit ~ Home~ o {) 7 -81 ?? Wort -n Comact No . I ot J Canversdcxi topics, Comments, Problems Noud, llld Officer SuucatlOnJ: (Otlicer's Opinion) In your opinion. be.sod on your contaet with this citi.u:n, how do yoll thir.k they would rate their ovcnll 11Usfactic:Jn wlt.h CSPD 7 OfficerN Adm89 ~No OpiNon () Un.utisfied ()Very Uns&Eisfled Date of Report: , 9-7)- TOO~ MUNICIPAL DEVELOPMENT GROUP 2DJ Hollemm Drive East· Col/ep Station. Te:uu 77840 • ./09-691-5159 •FAX: 4~9i-4UJ Engineering, SUIVeying, Planning and Environmental Consultants FAX# NO.PAGESTOFOLLOW ~-DATE ~~~~~---·~~--~ TO Ve re?? 1 c ~ Ai o~ aun If there is a problem with this transmission, please call us at 409-693-5359. . CONFIDENTIALITY NOTICE: Thi.r facsimile message and accompanying communication and/or docu11ll!111S are ·inJendedfor the exclusive and cowfidenlial use ofw individual or entir/ to which tJre me.ssage is addressed I • 3 A3G S::>O::> +-H- I ct zt cag ao t xv~ gs :ao sa 1sz 1co 03 /28 /95 09:~6 FAX 409 693 4243 M D G -+-+-+ COCS DE VE . ~002 -I.Al' __,,) \ ( 7 Wa ·-:;, -f --..,,,, q I ';; -~ .t. 'S I '- c s ... ' Vj-)--9 r · · wv.i f s)s ~ .'::> .ev,1-+ s,i~;;;. ""> l.f-1-Of d !+ af )._"'(YI -j Q -+ V/ !, ,'J ol'.o), 7) ~ °J;1 ~../'/} --rv;+ er rf 5' l/t,1 ~c) ,I J -.... /.., "".' b Jr .... n " /.A Yl J1 a+ + v. ~ NJ ;;> rtJ -""""O ~,I U0..).. ~/1 03 /28 /95 09 :56 FAX 409 693 4243 M D G -+-+-+ COCS DEVE. ~003 --/h_;i~) • (V') • 0 . "t:::I /,M~ <; J.. s ~ ~ v ,I '()..Ad <J-lolO (I ~+~·~ .,, cl !d .,. wJ.'d lv,1-ro .1 -;J.3:1' ~VJ.. ~ .aN~~~ r~~QdQ..1d · 1 0 c~-=----=---=-=@JzmZml, -nT-----1 ] I ' I l'°"'>-Ls -G. 1 \ J----i --- 1 J ) -------- J , 03 /28 /95 12 :27 FAX 409 693 4 2 4 3 M D G -+-+-+ COCS DE VE . !41 00 1 FAX# ------NO. PAGES TO FOLLOW 2-DATE ~O /If_~ 'f ~ TO ~ Y r/f1 I 'c....q., Mo~ If there is a prohlem with this rransmission, please call us al 409-693-5359. CONFIDENTIALITY NOTICE: 11tisfacsimile message and acco"'J"111Ying communiumon and/or documenl.s are intended for the e::rclusive and conjidenJiol use of the individual or entity to which the message if addrwed /l I roMMENTs. __ _._/_:_/_OD _____ ·-~S~'k~:e-.-.h~c--6~__.o~-~-F-- ·p<A.,~ . s-/re e f-rJlt ~llrlt ·ed-; 7 i sou , e+ u.,t.. fc. .b"Z...~ l((il()) I I ~ ' l U'tt= I ~l~ I ~U""fif=Vlo... u..n~-.> c~u«LH ~ ~ ·" ~,,a;.11. 0 ..... I C:,OL..4 •lf'd ft . I 'J .;: 1 Yoe.. • ~Bl. ' Lcs-c l J 6',.('. a ~ 3.01> ~c. I L __ _ • ----1 I I I • 0 N L() ~ ) .. .;__ ___ -,_ - I I 8>~L)-f\FV"-SAu\~ Wt't·~o(:u.> c: µuU..1-4 ~ ~~ "'3'7'.&'1Lo ~ VoL • 68l., ft_...,..,.; Lcs-c \ J &...w::"' c t-)li!' 3 .or> ifJJC. Drainage Report For Windsor Pointe Lots 1&2 18.29 Ac. College Station, Brazos County, Texas Windsor Pointe Apartments Prepared For: Southwest Pointe Limited Partnership c/o Brisben Development Co. Kemper Street Cincinatti, Ohio Prepared By: Municipal Development Group 203 Holleman Drive East College Station, TX 77840 (409) 693-5359 MDGJob No : 00351-2580 Approved By: North Bardell, P .E. ~- N 0 0 i§I l.i.l > l.i.l t=I Vl u 0 u t t t ,,.~ ~ '1.AN~--"91-------- ~ ~ I M ""' N f ""' M 0) I «> 0) 0 I ""' l><1 < I ""' r-I N .. N .-I I/') 0) "' co N "' M 0 • I I I I I I I jS' I "" I I ... tO L() • ~ ""'" (/) ~Ir ~M<!\S tvt~l ~u ,et u...f... VoL. I oor::;~ ~.~'Z..~ c~ f~-,-rao) .... ====-=-=-=====-=----====-=-=-===-=-~-=-====-· --------.....-- C~NT~/1-L V L( K: :;! ~r :H El'!~~ -::SC::.tJ~ , ~. '-/a...... 3 34; ~. 3C8 w Q( "' VJ k I Windsor Pointe Apartments General Location The tract to be developed is located on both sides of the future Central Park Lane extension at the intersection of Central Park Lane and Southwest Parkway. Property Description This tract is a total of 19 .33 acres and is currently unimproved. This property consists of j Lots 1 & 2 and a Jdicated RO.W. for Central Park Lane extension. The lots are 11.44 acres, 6 .81acres, and 1.04 acres respectively. Lots 1 & 2 of Windsor Point are zoned R-5 and will be utilized for an apartment complex. Primary Drainage Basin Description The tract sheetflows southeast at a slope of approximately 1 %. The runoff eventually flows into the Krenek Tap Road drainage system and southwest into an intermittent stream under Krenek Tap Road. This project does not propose significant changes to these patterns since there / have been no site specific flooding problems noted in the existing conditions. The tract does not lie in the floodplain or floodway according to FEMA-FIRM Maps 48041C0144C (July 2 , 1992). Lot 1 (South) Drainage Facility Design The project proposes improving 5.61 acres of Lot 1 which will result in an additional J 21.54 c.fs. of runoff during the 10-year storm event. / -~~ ~ _(I' 'ri c.pa ·, ~ .,....r A rectangular we~ wide will be constructed at the outlet to limit the outflow to be less than that of the 10-year storm for all events of greater magnitude. The runoff will then flow under Central Park Lane to curb inlet at the outlet of Lot 2 and then will be piped to the storm system on Krenek Tap Road. Lot 2 (North) Drainage Facility Design i e project proposes impro · 3 .38 acres of Lot 2 which will result in an additional 17.48 c.fs. of runoff during the -ear storm event. r /V,; et wide will be constructed at the outlet to limit the outflow to be less than that of the 10-year storm for all events of greater magnitude. The runoff will then be piped to the storm system on Krenek Tap Road. • Off site Drainage Design • Drainage will leave this site in a 36" RCP at e grade to tie into the system at Krenek Tap Road. This pipe will run parallel to the proposed future extension of Central Park ,, Lane. At the u -·-pt operty line of the existing church the RCP will increase in size to a 42" .. RCP a . 77° grade to accommodate all to the road drainage and S. Madison's pre-existing 10 - year storm drainage. Then in a parallel easement the RCP will complete its route to Krenek Tap I I Road. At Krenek Tap Road thj draf age structure will change direction and flow to the southeast .\I\ io in a 42" RCP at .57% ade to tie ~to the existing system (See O:ffsite Drainage Design Plan & Profile Sheet). The existing system ties into an intermittent stream which is a tributary of Carter's Creek. Conclusions , there is adequate storage capacity on-site to detain the excess runoff in the detention areas. Tue design depicted is well within the standards of good practice and of the City of College Station Drainage Policy. DRAINAOE AREA Rational Method (Q = CIA) Pre-Development North Side Description Area ,/ (acres) Q Grassland 6.85 0.35 Pre-Development South Side ./ Area Description (acres) Q Grassland 11.44 0 .35 Pre-Development Street I Area Description (acres) Q Grassland 1.04 0.35 Total Tract Area (acres) Q 19.33 0.35 Post-Development North Side Area Weighted Description (acres) Q ___Q_ Landscaping 3.47 0.35 1.215 Impervious 3.38 , Area 0.90 3.042 6 .85 4.257 Cavg = 4.257 6.85 0.62 ~ Post-Development South Side Area Weighted Description (acres) Q ___Q_ Landscaping 5.83 0.35 2 .041 Impervious 5.61 ./ Area 0.90 5.049 11 .44 7.090 Cavg = 7 .090 11.44 0 .62 1 Post-Development Street Area Weighted Description (acres) Q ___Q_ Green Area 0.02 0.35 0.007 Impervious Area 1.02 ~ 0.90 0.918 1.04 0.925 Cavg 0.925 1.04 0.89 ~ Total Tract Area (acres) 0~4 ~ 19.33 Time of Co ncentration (Tc) Time (min) Pre-Development North Side 16 Pre-Development South Side 16 Pre-Development Street 16 Post-Development North Side 12 ~ Use 10 ./ Post-Development South Side 16 Post-Development Street 5 RUNOFF CALCULATIONS Runoff North Side Pre Post " Frequency Area Intensity Intensity Cpre Cpost Qpre Qpost Vpre Vpost <vearsl !fil;l (in/in) (in/in) ----{ff§} {ff§} @ @ 100 6.85 9.3 10.8 0.35 0.62 22.35 45.87 32985 49545 50 6.85 8.9 10.3 0.35 0.62 21.42 43.96 31616 47473 25 6.85 7.9 9.1 0.35 0.62 G-38.85 27893 41957 10 6.85 6.9 8.0 0.35 0.62 33.98 24358 36703 5 6.85 6.1 7.1 0.35 0.62 30.21 21560 32626 Runoff South Side Pre Post Cpost' Frequency Area Intensity Intensity Cpre Qpre Qpost Vpre Vpost (years) @£1 (in/inl !in/inl ----{ff§} {ff§} @ @ 100 11.44 9.3 9.4 0.35 0.62 37.32 66.48 55088 96930 50 11.44 8.9 9.0 0.35 0.62 35.77 63.72 52800 92905 25 11.44 7.9 7.9 0.35 0.62 ~ 56.22 46584 81973 10 11.44 6.9 6.9 0.35 0.62 49.10 40679 71587 5 11.44 6.1 6.1 0.35 0.62 43.47 36006 63375 ,,,,,;t>t('I': Runoff Total Frequency Area Cpre Cpost Qpre Qpost Vpre Vpost <vearsl @£1 ----{ff§} {ff§} @ @ 100 18.29 0.35 0.62 59.67 112.36 88073 146475 50 18.29 0.35 0.62 57.19 107.68 84416 140378 25 18.29 0.35 0.62 50.46 95.07 74477 123930 10 18.29 0.35 0.62 44.06 83.08 65037 108290 5 18.29 0.35 0.62 39.00 73.68 57566 96001 Runoff street Pre Post Frequency Area Intensity Intensity Cpre Cpost./ Qpre Qpost Vpre Vpost (years) @£1 (in/inl (in/in) --{ff§} {ff§} @ @ 100 1.04 9.3 11.6 0.35 0.89 3.39 10.77 5008 9690 50 1.04 8.9 11.1 0.35 0.89 3.25 10.31 4800 9280 25 1.04 7.9 9.9 0.35 0.89 2.87 9.12 1412 2737 10 1.04 6.9 8.6 0.35 0.89 2.51 7.99 1233 2396 5 1.04 6.1 7.7 0.35 0.89 2.22 7.12 1091 2135 Runoff Total Xk~~~ Frequency Area Cpre Cpost Qpre Qpost Vpre Vpost (years) @£1 ----{ff§} {ff§} @ @ 100 19.33 0.35 0.64 63.06 123.12 93081 156164 50 19.33 0.35 0.64 60.44 117.99 89216 149659 25 19.33 0.35 0.64 53.33 104.19 75889 126666 10 19.33 0.35 0.64 46.57 91.07 66269 110686 5 19.33 0.35 0.64 41.22 80.79 58657 98136 NORTH DRAlfllAOE AREA Routing 100Year Detention Pond Bottom Width {ft} 30 Tc{min} Length (ft} 16 12 370 SideSloges Rectangular Weir Maximum Conditions Peak Flows {cfs} Run Rise Bottom Width {ft} Height Qweir 16.50 45.87 3 1 2.00 2.37 16.08 Tc Qpre Qpost Vine. Vtotal Ax-sec H Qweir s/dt Vstorage Ax-sec Hstorage {min} J£ffil... J£ffil... _J2fL _J2fL _oo_ -1f!L J£ffil... --____@___ _oo_ __filL 0 0.00 0.00 0.0 0.0 0.0 0.00 0.00 0.0 0.0 0.0 0.00 1 1.03 3.82 229.4 229.4 0.6 0.02 0.02 1.9 114.2 0.3 0.01 2 2.06 7.65 458.7 572.9 1.5 0.05 0.07 7.6 455.7 1.2 0.04 3 3.09 11.47 688.1 1143.8 3.1 0.10 0.19 17.0 1021.5 2.8 0.09 4 4.13 15.29 917.5 1939.0 5.2 0.17 0.40 30.1 1806.6 4.9 0.16 5 5.16 19.11 1146.9 2953.5 8.0 0.26 0.74 46.7 2804.4 7.6 0.25 6 6.19 22.94 1376.2 4180.6 11.3 0.36 1.22 66.8 4007.0 10.8 0.35 7 7.22 26.76 1605.6 5612.6 15.2 0.48 1.84 90.1 5406.0 14.6 0.47 8 8.25 30.58 1835.0 7241.0 19.6 0.61 2.61 116.5 6992.6 18.9 0.59 9 9.28 34.41 2064.4 9057.0 24.5 0.76 3.53 146.0 8758.0 23.7 0.73 10 10.31 38.23 2293.7 11051.8 29.9 0.91 4.58 178.2 10693.9 28.9 0.89 11 11.35 42.05 2523.1 13217.0 35.7 1.08 5.75 213.2 12792.5 34.6 1.04 12 12.38 45.87 2752.5 15544.9 42.0 1.25 7.03 250.8 15046.8 40.7 1.21 13 13.41 43.96 2637.8 17684.5 47.8 1.40 8.22 288.1 17284.4 46.7 1.37 14 14.44 42.05 2523.1 19807.5 53.5 1.55 9.39 322.3 19336.7 52.3 1.51 15 15.47 j 40.14 2408.4 21745.1 58.8 1.68 10.45 353.5 21207.2 57.3 1.64 16 16.50 38.23 2293.7 23500.9 63.5 1.79 11.41 381.7 22902.5 61.9 1.76 17 15.99 36.32 2179.0 25081.6 67.8 1.90 12.25 407.2 24429.1 66.0 1.86 18 15.47 34.41 2064.4 26493.5 71.6 1.99 13.00 429.9 25793.2 69.7 1.95 19 14.96 32.49 1949.7 27742.9 75.0 2.07 13.66 450.0 27000.5 73.0 2.02 20 14.44 30.58 1835.0 28835.5 77.9 2.14 14.22 467.6 28056.5 75.8 2.09 21 13.92 28.67 1720.3 29776.8 80.5 2.20 14.70 482.8 28966.4 78.3 2.15 22 13.41 26.76 1605.6 30572.0 82.6 2.25 15.11 495.6 29735.0 80.4 2.20 23 12.89 24.85 1490.9 31226.0 84.4 2.29 15.44 506.1 30367.0 82.1 2.24 24 12.38 22.94 1376.2 31743.2 85.8 2.32 15.69 514.4 30866.7 83.4 2.27 25 11.86 21.03 1261.6 32128.2 86.8 2.34 15.89 520.6 31238.1 84.4 2.29 26 11.35 19.11 1146.9 32385.0 87.5 ® 161 524.8 31485.4 85.1 2.31 27 10.83 17.20 1032.2 32517.5 87.9 7 526.9 31612.1 85.4 2.31 28 10.31 15.29 917.5 32529.6 87.9 7 527.0 31622.1 85.5 2.31 29 9.80 13.38 802.8 32424.9 87.6 525.3 31518.7 85.2 2.31 30 9.28 11.47 688.1 32206.8 87.0 2.35 521.8 31305.4 84.6 2.29 31 8.77 9.56 573.4 31878.8 86.2 2.33 516.4 30985.6 83.7 2.27 32 8.25 7.65 458.7 31444.3 85.0 2.30 509.4 30562.4 82.6 2.25 33 7.74 5.73 344.1 30906.5 83.5 2.27 15.28 500.7 30039.2 81.2 2.22 34 7.22 3.82 229.4 30268.6 81.8 2.23 14.95 490.3 29419.0 79.5 2.18 35 6.70 1.91 114.7 29533.7 79.8 2.18 14.58 478.4 28705.1 77.6 2.13 36 6.19 0.00 0.0 28705.1 77.6 2.13 14.15 465.0 27900.4 75.4 2.08 37 5.67 27900.4 75.4 2.08 13.74 451.1 27063.6 73.1 2.03 38 5.16 27063.6 73.1 2.03 13.30 437.5 26252.5 71.0 1.98 39 4.64 26252.5 71.0 1.98 12.87 424.5 25467.2 68.8 1.92 40 4.13 25467.2 68.8 1.92 12.46 411.8 24707.2 66.8 1.87 41 3.61 24707.2 66.8 1.87 12.05 399.5 23971.9 64.8 1.83 42 3.09 23971.9 64.8 1.83 11.66 387.7 23260.5 62.9 1.78 43 2.58 23260.5 62.9 1.78 11.28 376.2 22572.5 61.0 1.73 44 2.06 22572.5 61.0 1.73 10.90 365.1 21907.1 59.2 1.69 45 1.55 21907.1 59.2 1.69 10.54 354.4 21263.8 57.5 1.65 46 1.03 21263.8 57.5 1.65 10.19 344.0 20642.0 55.8 1.60 47 0.52 20642.0 55.8 1.60 9.85 334.0 20040.8 54.2 1.56 48 0.00 20040.8 54.2 1.56 9.52 324.3 19459.8 52.6 1.52 49 19459.8 52.6 1.52 9.20 315.0 18898.4 51.1 1.48 50 18898.4 51.1 1.48 8.89 305.9 18355.8 49.6 1.44 51 18355.8 49.6 1.44 8.59 297.2 17831.5 48.2 1.41 52 17831.5 48.2 1.41 8.30 288.7 17324.9 46.8 1.37 53 17324.9 46.8 1.37 8.02 280.6 16835.4 45.5 1.34 54 16835.4 45.5 1.34 7.75 272.7 16362.5 44.2 1.30 55 16362.5 44.2 1.30 7.48 265.1 15905.5 43.0 1.27 56 15905.5 43.0 1.27 7.23 257.7 15464.0 41.8 1.24 57 15464.0 41.8 1.24 6.99 250.6 15037.4 40.6 1.21 58 15037.4 40.6 1.21 6.75 243.8 14625.2 39.5 1.18 59 14625.2 39.5 1.18 6.52 237.1 14226.9 38.5 1.15 60 14226.9 38.5 1.15 6.31 230.7 13842.0 37.4 1.12 North Hydrograph 100 Year Storm o ~==-c__-+-~~-+-~-+-~----+------'"--+-~---4 0 10 20 30 40 50 60 Time (min) ---&-Qpre -a-Qpost ---Qweir NORTH DRAINAOE AREA Routing 50Year Tc (min) 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 2 4 25 26 27 28 29 30 31 32 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 60 Tclminl 16 12 Peak Flows (cfs) 16.50 43.96 Qpre Jfffil_ 0 .00 1 .03 2.06 3 .09 4 .13 5.16 6.19 7 .22 8 .25 9.28 10 .31 11 .35 12.38 13.41 14.44 9 15.47 14.96 14 .44 13.92 13.41 12.89 12.38 11 .86 11 .35 10.83 10.31 9 .80 9 .28 8 .77 8 .25 7 .74 7 .22 6 .70 6 .19 5 .67 5.16 4 .64 4 .13 3 .61 3 .09 2 .58 2 .06 1.55 1.03 0 .52 0 .00 Qpost Jfffil_ 0 .00 3 .66 7 .33 10.99 14.65 18.32 21 .98 25.64 29.30 32.97 36.63 e 40.29 38.46 36.63 34.80 32.97 31 .14 29.30 27.47 25.64 23.81 21.98 20.15 18.32 16.48 14.65 12.82 10.99 9 .16 7 .33 5.49 3 .66 1.83 0 .00 Vine. _J£fL 0 .0 219.8 439.6 659.3 879.1 1098.9 1318.7 1538.5 1758.3 1978.0 2197.8 2417.6 2637.4 2527.5 2417.6 2307.7 2197.8 2087.9 1978.0 1868.1 1758.3 1648.4 1538.5 1428.6 1318.7 1208.8 1098.9 989.0 879.1 769.2 659.3 549.5 439.6 329.7 219.8 109.9 0 .0 Detention Pond Bottom Width (ft) 30 Length (ft) 370 SideSlopes Run Rise 3 1 Vtotal _J£fL 0.0 219.8 549.0 1096.1 1858.2 2830.5 4007.0 5380.1 6941 .8 8683.8 10597.6 12675.1 14908.9 16962.4 19000.0 20859.9 22545.3 24062.5 25417.6 26616.5 27664.7 28567.6 29330.1 29956.8 30452.4 30820.9 31066.3 31192.6 31203.5 31102.3 30892.6 30577.8 30160.9 29645.3 29033.9 28330.0 27536.4 26766.1 25965.3 25189.3 24438.3 23711 .7 23008.8 22329.1 21671.8 21036.3 20422.0 19828.3 19254.4 18699.8 18163.9 17646.1 17145.8 16662.3 16195.2 15744.0 15307.9 14886.6 14479.5 14086.1 13706.0 Ax-sec _JfilL 0 .0 0 .6 1.5 3.0 5.0 7 .7 10.8 14.5 18.8 23.5 28.6 34.3 40.3 45.8 51.4 56.4 60.9 65.0 68.7 71 .9 74.8 77.2 79.3 81 .0 82.3 83.3 84.0 84.3 84.3 84.1 83.5 82.6 81 .5 80.1 78.5 76.6 74.4 72.3 70.2 68.1 66.0 64.1 62.2 60.3 58.6 56.9 55.2 53.6 52.0 50.5 49.1 47.7 46.3 45.0 43.8 42.6 41.4 40.2 39.1 38.1 37.0 Rectangular Weir Bottom Width (ft) 2 .00 H Qweir _illL Jfffil_ 0 .00 0 .00 0 .02 0 .02 0 .05 0.06 0 .10 0 .18 0 .16 0 .38 0 .25 0 .70 0 .35 1.15 0 .46 1.74 0 .59 2.47 0 .73 3.34 0.88 4 .34 1.03 5.45 1.20 6 .68 1.35 7 .82 1.49 8 .94 1.62 9 .97 1.73 10.89 1.83 11 .71 1.92 12.43 2 .00 13.07 2 .07 13.62 2 .12 14.08 2 .17 14.48 2 .21 14.80 2 .24 15.05 2 .26 J 15.23 ~~ 2 .27 15.27 2 .25 15.11 2 .22 14.90 2 .19 14.64 2 .15 14 .32 2 .11 13.96 2 .06 13.55 2 .01 13.14 1.96 12.72 1.91 12.31 1.86 11 .91 1.81 11.52 1.76 11.14 1.72 10.77 1.67 10.41 1.63 10.06 1.59 9 .73 1.55 1.51 1.47 1.43 1.40 1.36 1.33 1.29 1.26 1.23 1.20 1.17 1.14 1.11 9.40 9.08 8 .78 8.48 8.20 7 .92 7 .65 7 .39 7 .14 6 .90 6 .67 6 .44 6 .23 6 .02 s/dt 0 .0 1.8 7 .3 16.3 28.9 44.8 64.0 86.4 111 .8 140.0 171 .0 204.5 240.6 276.4 309.2 339.1 366.2 390.7 412.5 431 .8 448.7 463.2 475.5 485.6 493.5 499.5 503.4 505.4 505.6 503.9 500.5 495.4 488.6 480.2 470.3 458.9 446.1 432.8 419.8 407.3 395.2 383.5 372.2 361.2 350.6 340.4 330.5 320.9 311 .7 302.7 294.1 285.8 277.7 269.9 262.4 255.1 248.1 241 .3 234.8 228.4 222.3 Ma ximum Condit ions Height Qweir 2 .29 15.42 Vstorage _ML 0 .0 109.4 436.7 979.0 1731 .6 2688.3 3841 .6 5183.6 6705.8 8399.8 10257.5 12271 .5 14435.0 16582.4 18552.2 20347.4 21974.5 23439.5 24748.3 25906.5 26919.2 27791 .6 28528.3 29133.7 29612.1 29967.4 30203.6 30324.3 30333.1 30233.3 30028.3 29721.3 29315.6 28814.1 28220.1 27536.4 26766.1 25965.3 25189.3 24438.3 23711.7 23008.8 22329.1 21671 .8 21036.3 20422.0 19828.3 19254.4 18699.8 18163.9 17646.1 17145.8 16662.3 16195.2 15744.0 15307.9 14886.6 14479.5 14086.1 13706.0 13338.6 Ax-sec _JfilL 0.0 0 .3 1.2 2 .6 4 .7 7 .3 10.4 14.0 18.1 22.7 27.7 33.2 39.0 44.8 50.1 55.0 59.4 63.4 66.9 70.0 72.8 75.1 77.1 78.7 80.0 81.0 81.6 82.0 82.0 81.7 81.2 80.3 79.2 77.9 76.3 74.4 72.3 70.2 68.1 66.0 64.1 62.2 60.3 58.6 56.9 55.2 53.6 52.0 50.5 49.1 47.7 46.3 45.0 43.8 42.6 41.4 40.2 39.1 38.1 37.0 36.1 Hstorage ___1ID_ 0 .00 0 .01 0 .04 0 .09 0 .15 0 .24 0 .33 0.45 0 .57 0 .7 1 0 .85 1.00 1.16 1.32 1.46 1.58 1.69 1.79 1.88 1.95 2 .02 2 .07 2 .12 2 .16 2.19 2.21 2 .23 2 .23 2 .23 2 .23 2 .21 2.20 2.17 2 .14 2 .10 2 .06 2 .01 1.96 1.91 1.86 1.81 1.76 1.72 1.67 1.63 1.59 1.55 1.51 1.47 1.43 1.40 1.36 1.33 1.29 1.26 1.2 3 1.2 0 1.17 1.14 1.11 1.08 North Hydrograph 50 Year Storm o --~-+-~~-+-~-----4--~----+-~~~---4 0 10 20 30 40 50 60 Time (min) ---&-Qpre -e---Qpost ---Qweir NORTH DRAINAGE AREA Routing 25Year Detention Pond Bottom Width {ft} 30 Tc {minl Length {ft} 16 12 370 SideSl012es Rectangular Weir Maximum Cond~ions Peak Flows {cfs} Run Rise Bottom Width {ft} Height Qweir 16.50 38.85 3 1 2.00 2 .07 13.63 Tc Qpre Qpost Vine . Vtotal Ax-sec H Qwe ir s/dt Vstorage Ax-sec Hstorage {min} Jff& Jff& _JffL _JffL _ffilL _!f!L Jff& __(g)_ _ffilL --1!!L 0 0 .00 0.00 0 .0 0 .0 0 .0 0 .00 0 .00 0 .0 0.0 0 .0 0.00 1 1.03 3 .24 194.2 194.2 0 .5 0 .02 0 .01 1.6 96.7 0 .3 0.01 2 2 .06 6.47 388.5 485 .2 1.3 0.04 0 .05 6.4 386.1 1.0 0.03 3 3 .09 9 .71 582.7 968.9 2 .6 0 .09 0 .15 14.4 865.8 2 .3 0.08 4 4.13 12.95 Tl7.0 1642.8 4.4 0.15 0 .32 25.5 1531.8 4.1 0.14 5 5 .16 16.19 971.2 2503.0 6 .8 0.22 0.59 39.6 2378.8 6.4 0.21 6 6.19 19.42 1165.5 3544.2 9 .6 0 .31 0 .97 56.7 3400 .6 9.2 0 .30 7 7 .22 22.66 1359.7 4760.3 12.9 0 .41 1.46 76.5 4590.3 12.4 0.40 8 8.25 25.90 1554.0 6144.2 16.6 0 .53 2 .09 99.0 5940.5 16.1 0.51 9 9 .28 29.14 1748.2 7688.7 20.8 0 .65 2 .83 124.1 7443.9 20.1 0.63 10 10.31 32.37 1942.5 9386.4 25.4 0.78 3 .70 151.6 9093.2 24.6 0.76 11 11 .35 e 2136.7 11229.9 30.4 0 .93 4.67 181.4 10881 .7 29.4 0.90 12 12.38 2330.9 13212.6 35.7 1.07 5 .75 213.4 12802.8 34.6 1.04 13 13.41 2233.8 15036.6 40.6 1.21 6 .75 245.2 14710.2 39.8 1.18 14 14.44 35.61 2136.7 16846.9 45.5 1.34 7 .75 274.3 16460 .3 44.5 1.31 15 e 33.99 2039.6 18499.9 50.0 1.45 8 .67 300.9 18055.8 48.8 1.42 16 32.37 1942.5 19998.3 54.0 1.56 9.49 325.0 19502.0 52.7 1.52 17 30.76 1845.3 21347.3 57.7 1.65 10.23 346.7 20804.0 56.2 1.61 18 15.47 29.14 1748.2 22552.2 61 .0 1.73 10.89 366.1 21966.9 59.4 1.69 19 14.96 27.52 1651 .1 23618.0 63.8 1.80 11.47 383.3 22995.8 62.2 1.76 20 14.44 25.90 1554.0 24549.8 66.4 1.86 11 .97 398.3 23895.2 64.6 1.82 21 13.92 24.28 1456.8 25352.0 68.5 1.92 12.40 411 .2 24669.6 66.7 1.87 22 13.41 22.66 1359.7 26029.3 70.3 1.96 12.76 422.1 25323.3 68.4 1.91 23 12.89 21 .04 1262.6 26585.9 71 .9 2.00 13.05 431 .0 25860 .2 69.9 1.95 24 12.38 19.42 1165.5 27025.7 73.0 2 .02 13.28 438 .1 26284.3 71 .0 1.98 25 11 .86 17.81 1068.3 27352.7 73.9 2 .05 j 13.45 443 .3 26599.2 71.9 2.00 26 11 .35 16.19 971.2 27570.5 74.5 2 .06 13.57 446 .8 26808.5 72.5 2.01 27 10.83 14.57 874.1 27682.6 74.8 ~qw. 448 .6 26915.4 72.7 2 .02 28 10.31 12.95 Tl7.0 27692.4 74.8 13.63 448.7 26923.3 72.8 2 .02 29 9.80 11 .33 679.9 27603.2 74.6 13. 8 447.3 26835.4 72 .5 2 .01 30 9 .28 9 .71 582.7 27418.1 74.1 2.05 13.49 444.2 26654.6 72 .0 2 .00 31 8 .77 8 .09 485 .6 27140.2 73.4 2 .03 13 .34 439.7 26384.0 71 .3 1.98 32 8.25 6.47 388.5 26772.4 72.4 2 .01 13.15 433 .8 26026.3 70.3 1.96 33 7 .74 4.86 291.4 26317.7 71.1 1.98 12.91 426 .4 25584.5 69.1 1.93 34 7 .22 3 .24 194.2 25778.8 69.7 1.94 12.62 417.7 25061.4 67.7 1.90 35 6 .70 1.62 97.1 25158.5 68.0 1.90 12.29 407.7 24459.5 66.1 1.86 36 6.19 0.00 0.0 24459.5 66.1 1.86 11.92 396.4 23781 .6 64.3 1.81 37 5 .67 23781 .6 64.3 1.81 11 .56 384.6 23077.3 62.4 1.77 38 5.16 23077.3 62.4 1.77 11.18 373.3 22395.3 60.5 1.72 39 4.64 22395.3 60.5 1.72 10.81 362.3 21735.8 58.7 1.68 40 4.13 21735.8 58.7 1.68 10.45 351 .6 21098.2 57.0 1.63 41 3.61 21098.2 57.0 1.63 10.10 341.4 20481 .9 55.4 1.59 42 3 .09 20481 .9 55.4 1.59 9 .76 331.4 19886.1 53.7 1.55 43 2.58 19886.1 53.7 1.55 9.43 321 .8 1931 0 .3 52.2 1.51 44 2 .06 19310.3 52.2 1.51 9 .12 312.6 18753.8 50.7 1.47 45 1.55 18753.8 50.7 1.47 8 .81 303.6 18216.1 49 .2 1.44 46 1.03 18216.1 49.2 1.44 8 .51 294.9 17696.5 47.8 1.40 47 0 .52 17696.5 47.8 1.40 8 .22 286.6 17194.5 46.5 1.36 48 0.00 17194.5 46.5 1.36 7 .95 278.5 1670 9.4 45 .2 1.33 49 16709.4 45.2 1.33 7 .68 270.7 16240.7 43.9 1.30 50 16240.7 43.9 1.30 7 .42 263.1 15787.9 42.7 1.26 51 15787.9 42.7 1.26 7 .17 255.8 15350.4 41 .5 1.23 52 15350.4 41 .5 1.23 6 .92 248.8 14927.6 40.3 1.20 53 14927.6 40.3 1.20 6 .69 242.0 14519.1 39.2 1.17 54 14519.1 39.2 1.17 6.47 235.4 14124.4 38.2 1.14 55 14124.4 38.2 1.14 6 .25 229.0 13743.0 37.1 1.11 56 13743.0 37.1 1.11 6 .04 222.9 13374.4 36.1 1.09 57 13374.4 36.1 1.09 5 .84 217.0 130 18.1 35.2 1.06 58 13018.1 35.2 1.06 5.64 211 .2 12673.7 34.3 1.03 59 12673.7 34.3 1.03 5 .45 205.7 12340 .8 33.4 1.01 60 12340 .8 33.4 1.01 5.27 200.3 120 19.0 32.5 0 .99 ...-... ~ North Hydrograph 25 Year Storm ~20 -+---±--t-~~~-------+~~-r-~~+--~- 0 10 20 30 40 50 60 Time (min) --<>--Qpre -a-Qpost -----Qweir NORTH DRAINAGE AREA Routing 10 Year Detention Pond Bottom Width {ft} 30 Tc (min} Length {ft} 16 12 370 SideSl012es Rectangular Weir Maximum Conditions Peak Flows {cfs} Run Rise Bottom Width {ft} Height Qweir 16.50 33.98 3 1 2 .00 1.85 11 .87 Tc Qpre Qpost Vine. Vtotal Ax-sec H Qweir s/dt Vstorage Ax-sec Hstorage {min} Jrul.. Jrul.. _{ff}_ _{ff}_ __{& -1f!L Jrul.. ___@__ __{& --'f!L 0 0 .00 0 .00 0.0 0 .0 0.0 0 .00 0 .00 0 .0 0 .0 0 .0 0 .00 1 1.03 2.83 169.9 169.9 0 .5 0 .02 0 .01 1.4 84.6 0 .2 0 .01 2 2 .06 5 .66 339.8 424.5 1 .1 0 .04 0 .04 5 .6 337.9 0.9 0 .03 3 3 .09 8 .50 509.8 847.7 2 .3 0.08 0 .12 12.6 757.8 2 .0 0 .07 4 4 .13 11 .33 679.7 1437.5 3 .9 0 .13 0 .26 22.4 1341 .1 3 .6 0 .12 5 5.16 14.16 849.6 2190.7 5 .9 0 .19 0.48 34.7 2083.5 5 .6 0 .18 6 6 .19 16.99 1019.5 3103.0 8.4 0 .27 0 .80 49.7 2979.6 8 .1 0 .26 7 7 .22 19.82 1189.4 4169.0 11 .3 0 .36 1.22 67.1 4023.6 10.9 0 .35 8 8 .25 22.66 1359.4 5383.0 14.5 0 .46 1.74 86.8 5209.4 14.1 0.45 9 9 .28 25.49 1529.3 6738.7 18.2 0 .57 2 .37 108.8 6530.4 17.6 0 .56 10 10.31 28.32 1699.2 8229.6 22.2 0 .69 3 .11 133.0 7980.4 21 .6 0 .67 11 11.35 31 .15 1869.1 9849.5 26.6 0.82 3.94 159.2 9553.2 25.8 0.80 12 12.38 33.98 2039.0 11592.2 31.3 0 .95 4 .87 187.4 11243.0 30.4 0.93 13 13.41 32.57 1954.1 13197.1 35.7 1.07 5 .74 215.4 12921.3 34.9 1.05 14 14.44 31 .15 1869.1 14790.5 40.0 1.19 6.62 241 .0 14462.3 39.1 1.17 15 15.47 29.74 1784.2 16246.4 43 .9 1.30 7 .42 264.5 15867.8 42.9 1.27 16 16 .50 28.32 1699.2 17567.0 47.5 1.39 8.15 285.7 17142.3 46.3 1.36 17 15.99 26.90 1614.2 18756.6 50.7 1.47 8 .81 304.8 18290.2 49.4 1.44 18 15.47 25.49 1529.3 19819.5 53.6 1.55 9 .40 321 .9 19315.8 52.2 1.51 19 14.96 24.07 1444.3 2 0760.1 56.1 1.61 9 .91 337.1 20223.3 54.7 1.57 20 14.44 22.66 1359.4 21582.7 58.3 1.67 10.36 350.3 21016.8 56.8 1.63 21 13.92 21 .24 1274.4 22291 .2 60.2 1.71 10.75 361 .7 21700.3 58.6 1.67 22 13.41 19.82 1189.4 22889.8 61 .9 1.75 11 .07 371 .3 22277.5 60.2 1.71 23 12.89 18.41 1104.5 23382.0 63.2 1.79 11 .34 379.2 22752.0 61 .5 1.75 24 12.38 16.99 1019.5 23771 .5 64.2 1.81 11 .55 385.5 23127.2 62.5 1.77 25 11 .86 15.58 934.6 24061 .8 65.0 1.83 l 11 .71 390.1 23406.5 63.3 1.79 26 11 .35 14.16 849.6 24256.1 65.6 ~ ~393 .2 23593.0 63.8 1.80 27 10.83 12.74 764.6 24357.7 65.8 1.87 394.8 23689.8 64.0 1.81 28 10 .31 11 .33 679.7 24369.5 65.9 . 395.0 23699.8 64.1 1.8 1 29 9 .80 9 .9 1 594.7 24294.5 65.7 1.85 11.83 393.8 23625.9 63.9 1.80 30 9 .28 8 .50 509.8 24135.6 65.2 1.84 11 .75 391 .2 23470 .8 63.4 1.79 31 8 .77 7 .08 424.8 23895.6 64.6 1.82 11 .62 387.3 23237.1 62.8 1.78 32 8 .25 5 .66 339.8 23576.9 63.7 1.80 11 .45 382.1 22927.5 62.0 1.76 33 7.74 4 .25 254.9 23182.4 62.7 1.77 11 .23 375.7 22544.5 6 0 .9 1.73 34 7 .22 2.83 169.9 22714.4 61.4 1.74 10.98 368.2 22090.5 59.7 1.70 35 6 .70 1.42 85.0 22175.4 59.9 1.71 10.6 9 359.5 21567.9 58.3 1.67 36 6.19 0 .00 0 .0 21567.9 58.3 1.67 10.36 349.7 20979.2 56.7 1.63 37 5 .67 20979.2 56.7 1.63 10.03 339.5 20367.5 55.0 1.58 38 5.16 20367.5 55.0 1.58 9.70 329.6 19775.6 53.4 1.54 39 4.64 19775.6 53.4 1.54 9 .37 320.1 19203.5 51 .9 1.50 40 4 .13 19203.5 51 .9 1.50 9 .06 310.8 18650 .6 50.4 1.47 41 3.61 18650.6 50.4 1.47 8 .75 301 .9 18116.4 49.0 1.43 42 3 .09 18116.4 49.0 1.43 8 .46 293.3 17600 .2 47.6 1.39 43 2 .58 17600.2 47.6 1.39 8 .17 285.0 17101 .4 46.2 1.36 44 2 .06 17101 .4 46 .2 1.36 7 .89 277.0 16619.4 44.9 1.32 45 1 .55 16619.4 44 .9 1.32 7 .63 269.2 16153.8 43.7 1.29 46 1 .03 16153.8 43 .7 1.29 7 .37 261 .7 15703.9 42 .4 1.26 47 0 .52 15703.9 42.4 1.26 7 .12 254.5 15269.2 41.3 1.23 48 0 .00 15269.2 41 .3 1.23 6 .88 247.5 14849.2 40.1 1.19 49 14849.2 40.1 1.19 6.65 240.7 14443.4 39.0 1.17 50 14443.4 39.0 1.17 6.42 234.2 14051.2 38.0 1.14 51 14051 .2 38.0 1.14 6 .21 227.9 13672.2 37.0 1.11 52 13672.2 37.0 1.11 6 .00 221 .8 13306.0 36.0 1.08 53 13306.0 36.0 1.0 8 5 .80 215.9 12952.0 35.0 1.06 54 12952.0 35.0 1.06 5 .61 210.2 12609.8 34.1 1.03 55 12609.8 34.1 1.03 5.42 204.7 12279.1 33.2 1.01 56 12279.1 33.2 1.01 5 .24 199.3 11959.3 32.3 0.98 57 11959.3 32.3 0 .98 5 .07 194.2 11650.1 31 .5 0 .96 58 11650.1 31 .5 0 .96 4 .90 189.2 11351.2 30.7 0.94 59 11351 .2 30.7 0 .94 4 .74 184.4 11062.0 29.9 0 .91 60 11062.0 29.9 0 .91 4 .58 179.7 10782.4 29.1 0.89 North Hydrograph 10 Year Storm 35 ~~~~~~~-~~~~~~~~ 30 -+--~-++-------+~~-1-~----+-~~-t--~~ 25 -+--~-+-+-~---+--~-+-~~-+--~-+-~---i ....-.... ~20 -t------Tfr-+--~~~~~~~-+-~~+--~~ 0 ..._., 015 -+--1---t---r~err-~~~~-+-~~+--~~ 10 +-f---rr-~--,4-~~~~-+-~-t-~----1 5 +-+-~-+-~~+--~---+-~~+--~--+----=~ o ~==-----+--~~-+-~-+-~~-+-~~~~ 0 10 20 30 40 50 60 Time (min) ~ Qpre -a-Qpost ----Qweir NORTH DRAINAGE AREA Routing 5Year Detention Pond Bottom Width (ft} 30 Tc (min} Length (ft} 16 12 370 SideSl01:1es Rectangular Weir Maximum Conditions Peak Flows (cfs} Run Rise Bottom Width (ft} Height Qweir 14.61 30.21 3 1 2 .00 1.68 10.48 Tc Qpre Qpost Vine. Vtota l Ax-sec H Qweir s/dt Vst orage Ax-sec Hstorage (min} Jfffil_ Jfffil_ _(ff}_ _(ff}_ _1filL -1f!L Jfffil_ ~ _1filL _fil}_ 0 0 .00 0 .00 0.0 0 .0 0 .0 0 .00 0 .00 0 .0 0.0 0 .0 0.00 1 0 .9 1 2 .52 151 .0 151.0 0 .4 0 .01 0.01 1.3 75 .2 0 .2 0.01 2 1.83 5 .03 302.1 3n.3 1.0 0 .03 0.04 5.0 300.5 0 .8 0.03 3 2 .74 7 .55 453 .1 753.6 2.0 0 .07 0 .10 11.2 674.0 1.8 0 .06 4 3 .65 10.07 604.2 1278.2 3 .5 0 .11 0.22 19.9 1193.0 3 .2 0.11 5 4 .56 12.59 755.2 1948.3 5 .3 0 .17 0 .41 30.9 1854.0 5 .0 0.16 6 5 .48 15.10 906 .3 2760.2 7 .5 0 .24 0 .67 44 .2 2652.3 7 .2 0.23 7 6 .39 17.62 1057.3 3709.6 10.0 0 .32 1.03 59.7 3582.9 9 .7 0.31 8 7 .30 20.14 1208.4 4791 .3 12.9 0.41 1.48 77.3 4640.5 12.5 0.40 9 8.22 22.66 1359.4 5999.9 16.2 0 .51 2.02 97.0 5819.4 15.7 0.50 10 9 .13 25.17 1510.5 7329.9 19.8 0 .62 2.66 118.6 7114.0 19.2 0 .60 11 10.04 27.69 1661 .5 8775.5 23.7 0 .74 3.38 142.0 8518.8 23.0 0.72 12 10.96 30.21 1812.6 10331 .3 27.9 0 .86 4 .19 167.1 10028.5 27.1 0.83 13 11.87 28.95 1737.0 11765.5 31 .8 0 .97 4.96 192.1 11528.6 31 .2 0.95 14 12.78 27.69 1661.5 13190.1 35.6 1.07 5 .74 215.1 12906.9 34.9 1.05 15 13.69 26.43 1586.0 14492.9 39.2 1.17 6.45 236.1 14165.0 38.3 1.15 16 14.61 25.17 1510.5 15675.5 42.4 1.25 7 .10 255.1 15306.6 41.4 1.23 17 14.15 23.92 1434.9 16741 .5 45.2 1.33 7 .69 272.3 16335.3 44 .1 1.30 18 13.69 22.66 1359.4 17694.7 47.8 1.40 8.22 287.6 17255.0 46.6 1.37 19 13.24 21.40 1283.9 18538.8 50.1 1.46 8 .69 301 .2 18069.2 48.8 1.42 20 12.78 20.14 1208.4 19277.6 52.1 1.51 9 .10 313.0 18781 .8 50.8 1.47 21 12.32 18.88 1132.8 19914.6 53.8 1.55 9 .45 323.3 19396.0 52.4 1.52 22 11 .87 17.62 1057.3 20453.3 55.3 1.59 9 .74 331 .9 19915.3 53.8 1.55 23 11.41 16.36 981 .8 20897.1 56.5 1.62 9 .99 339.0 20342.8 55.0 1.58 24 10 .96 15.10 906.3 21249.1 57.4 1.64 10 .18 344.7 20681 .8 55.9 1.6 1 25 10.50 13.85 830 .8 21512.5 58.1 1.66 10.33 348.9 20935.1 56.6 1.62 26 10 .04 12 .59 755.2 21690.3 58.6 1.67 ~ 10.42 351 .8 21105.7 57.0 1.63 27 9 .59 11 .33 679.7 21785.4 58.9 ~~ 353.3 21196.3 57.3 1.64 28 9 .13 10.07 604.2 21800.4 58.9 353.5 21209.5 57.3 1.64 29 8 .67 8 .81 528.7 21738.2 58.8 1.68 10. 352.5 21148.0 57.2 1.64 30 8.22 7 .55 453.1 21601 .2 58.4 1.67 10.37 350.2 21014.3 56.8 1.63 31 7 .76 6 .29 377.6 21391 .9 57.8 1.65 10 .26 346.8 20810.7 56.2 1.61 32 7 .30 5 .03 302.1 21112.7 57.1 1.63 10.11 342.3 20539.5 55.5 1.60 33 6.85 3 .78 226.6 20766.1 56.1 1.6 1 9 .92 336.7 20203.2 54.6 1.57 34 6.39 2 .52 151 .0 20354.2 55.0 1.58 9 .69 330.1 19803.8 53.5 1.55 35 5 .93 1.26 75.5 19879.3 53.7 1.55 9 .43 322.4 19343.5 52.3 1.51 36 5.48 0 .00 0 .0 19343.5 52.3 1.51 9 .13 313.7 18824.4 50.9 1.48 37 5 .02 18824.4 50.9 1.48 8 .85 304.7 18284.9 49.4 1.44 38 4 .56 18284.9 49.4 1.44 8 .55 296.1 17763.0 48.0 1.40 39 4.11 17763.0 48.0 1.40 8.26 287.6 17258.7 46.6 1.37 40 3 .65 17258.7 46.6 1.37 7 .98 279.5 16771 .5 45.3 1.33 41 3 .20 16771 .5 45.3 1.33 7 .71 271 .7 16300.7 44.1 1.30 42 2 .74 16300.7 44.1 1.30 7.45 264.1 15845.9 42.8 1.27 43 2 .28 15845.9 42.8 1.27 7.20 256.8 15406.4 41 .6 1.24 44 1.83 15406.4 41 .6 1.24 6 .96 249.7 14981 .7 40.5 1.20 45 1.37 14981 .7 40.5 1.20 6.72 242.9 14571.4 39.4 1.17 46 0.91 14571 .4 39.4 1.17 6 .49 236.2 14174.9 38.3 1.15 47 0.46 14174.9 38.3 1.15 6 .28 229.9 13791 .8 37.3 1.12 48 0 .00 13791 .8 37.3 1.12 6 .07 223.7 13421 .5 36.3 1.09 49 13421 .5 36.3 1.09 5 .86 217.7 13063.7 35.3 1.06 50 13063.7 35.3 1.06 5 .67 212.0 12717.8 34.4 1.04 51 12717.8 34.4 1.04 5 .48 206.4 12383.4 33.5 1.01 52 12383.4 33.5 1.01 5 .30 201 .0 12060.2 32.6 0 .99 53 12060.2 32.6 0 .99 5.12 195 .8 11747.7 31 .8 0 .97 54 11747.7 31 .8 0 .97 4.95 190.8 11445.5 30.9 0 .94 55 11445.5 30.9 0 .94 4.79 185.9 11153.3 30.1 0.92 56 11153.3 30.1 0 .92 4.63 181 .2 10870.7 29.4 0 .90 57 10870 .7 29.4 0 .90 4.48 176.6 10597.3 28.6 0.88 58 10597.3 28.6 0 .88 4.34 172.2 10332.8 27.9 0.86 59 10332.8 27.9 0 .86 4.20 167.9 10076.8 27.2 0 .84 60 10076.8 27.2 0 .84 4.06 163.8 9829.2 26.6 0.82 North Hydrograph 5 Year Storm 35 -.--~-r-~~~~~~~~~~~~ 30 -l--~~-----+~~-+-~----+-~~-l--~~ 25 -+--~--~----+--~--+-~~-+--~---+-~----" ....-.... ~20 -r--~~~~--~--+~~-+--~~-t--~~ 0 ...._...... 0 15 10 +-+-------17L--~-+-=.,,~~~=--l-~~+-~~ 5 +--¢--==----+--?-~-+-~---+-~~-+-~~~=-=-----1 o --~----+-~--+~~-4-------+-~--=---+--~~ 0 10 20 30 40 50 60 Time (min) ----&-Qpre ~ Qpost -----Qweir SOUTH DRAINAOE AREA Routing 100 Year Detention Pond Bottom Width {ft} I( 40 Tc !min} Length (ft} 16 16 620 Peak F~ {cfs} SideSloees Maximum Conditions Run Rise Height Qweir 27.56 66.48 3 1 2 .54 13.38 Tc Qpre Qpost Vine . Vtotal Ax-sec H Qwe ir s/dt Vstorage Ax-sec Hstorage {min} .M& .M& _{£f}_ _{£f}_ _JfilL _{fil_ .M& ---1ffL _JfilL _lf!}__ 0 0 .00 0 .00 0.0 0 .0 0 .0 0 .00 0 .00 0.0 0.0 0 .0 0 .00 1 1.72 4 .16 249.3 249.3 0 .4 0 .01 0.00 2 .1 124.5 0.2 0 .01 2 3 .45 8 .31 498.6 623.1 1.0 0 .03 0.02 8 .3 497.8 0.8 0 .02 3 5 .17 12.47 747.9 1245.7 2 .0 0.05 0.05 18.6 1118.9 1.8 0.04 4 6 .89 16.62 997.2 2116.1 3.4 0 .08 0.12 33.1 1986.3 3.2 0 .08 5 8 .61 20.78 1246.5 3232.9 5 .2 0 .13 0.22 51 .6 3098.2 5.0 0 .12 6 10.34 24.93 1495.8 4594.0 7 .4 0 .18 0 .36 74.2 4451 .9 7.2 0 .18 7 12.06 29.09 1745.1 6197.1 10.0 0 .25 0 .56 100.7 6044.6 9.7 0 .24 8 13.78 33.24 1994.4 8039.1 13.0 0.32 0 .82 131 .2 7873.0 12.7 0 .31 9 15.50 37.40 2243.8 10116.8 16.3 0 .40 1.13 165.6 9933.7 16.0 0 .39 10 17.23 41.55 2493.1 12426.7 20.0 0.48 1.51 203.7 12222.8 . 19.7 0.48 11 18.95 45.71 2742.4 14965.2 24.1 0 .58 1.95 245.6 14736.8 23.8 0 .57 12 20.67 49.86 2991 .7 17728.4 28.6 0 .68 2 .45 291 .2 17471 .6 28.2 0 .67 13 22.39 54.02 3241 .0 20712.6 33.4 0.79 3 .02 340.4 20423.7 32.9 0.78 14 24.12 58. 17 J 3490.3 23914.0 38.6 0 .90 3 .64 393.2 23589.4 38.0 0 .89 15 25.84 J 62.33 3739.6 27329.0 44.1 1.02 4 .32 449.4 26965.3 43 .5 1.01 16 ~~ 3988.9 30954.2 49.9 1.15 5 .06 509.1 30548.1 49 .3 1.14 17 26.70 64.40 3864.2 34412.4 55.5 1.27 5 .76 569.2 34150.3 55.1 1.26 18 25.84 62.33 3739.6 37889.9 61 .1 1.38 6.46 626.4 37585.6 60.6 1.37 19 24.98 6 0 .25 3614.9 41200 .6 66.5 1.49 7 .13 680.9 40855.1 65.9 1.48 20 24.1 2 58.17 3490.3 44345.4 71.5 1.60 7.76 732.7 43961 .0 70.9 1.58 21 23.25 56.09 3365.6 47326.7 76.3 1.69 8.35 781 .8 46905 .7 75.7 1.68 22 22.39 54.02 3241 .0 50146.7 80.9 1.78 8 .90 828.2 49691 .4 80.1 1.n 23 21 .53 51 .94 3116.3 52807.7 85.2 1.87 9.42 872.0 52320.5 84.4 1.85 24 20.67 49.86 2991 .7 55312.2 89.2 1.95 9 .89 913.3 54795.2 88.4 1.93 25 19.81 47.78 2867.0 57662.3 93.0 2 .02 10.33 952.0 57117.8 92.1 2 .00 26 18.95 45 .71 2742.4 59860.1 96.5 2.09 10.74 988.2 59290.3 95.6 2.07 27 18.09 43.63 2617.7 61908.0 99.9 2 .15 11 .11 1021 .9 61314.7 98.9 2.13 28 17.23 41.55 2493.1 63807 .7 102.9 2 .21 11 .4 5 10 53.2 631 93.0 10 1.9 2.19 29 16.36 39.47 2368.4 65561 .4 105.7 2 .26 11 .n 1082.1 64927.2 104.7 2 .24 30 15.50 37.40 2243.8 67170.9 108.3 2 .31 12.05 1108.6 66518.9 107.3 2 .29 31 14.64 35.32 2119.1 68638.0 110.7 2 .35 12.30 1132.8 67969.9 109.6 2 .33 32 13 .78 33.24 1994.4 69964.4 112.8 2 .39 12.53 1154.7 69281 .9 111.7 2.37 33 12 .92 31 .16 1869.8 71151 .7 114.8 2 .43 12.73 1174.3 70456.4 113.6 2.41 34 12 .06 29.09 1745.1 72201 .6 116.5 2 .46 12.90 1191 .6 71495.0 1 15.3 2 .44 35 11 .20 27.0 1 1620.5 73115.5 117.9 2 .49 13.05 1206.7 72399.2 116.8 2 .46 36 10.34 24.93 1495.8 73895.0 119.2 2 .51 13.18 1219.5 73170.3 118.0 2.49 37 9.47 22.85 73170.3 118.0 2 .49 13 .06 1230.3 73816.5 1 19.1 2.51 38 8 .61 20.78 73816.5 119.1 2 .51 13.17 1239.0 74338.4 119.9 2 .52 39 7 .75 18.70 74338.4 119.9 2 .52 13.25 1245.5 74729.9 120.5 2 .53 40 6 .89 16.62 74729.9 120.5 2 .53 1 13.32 1249.9 74992.3 121.0 2 .54 41 6 .03 14.54 74992.3 121 .0 ~ ~12521 75126.9 121 .2 2.54 42 5 .17 12.47 75126.9 121 .2 13.38 1252.2 75134.9 121 .2 2 .54 43 4 .31 10 .39 75134.9 121 .2 . 1250.3 750 17.5 121.0 2 .54 44 3 .45 8 .31 75017.5 121.0 13.36 1246.3 74n6.0 120.6 2 .53 45 2 .58 6 .23 74n6.o 120.6 2 .53 13.33 1240.2 74411 .6 120.0 2.52 46 1.72 4 .16 74411.6 120.0 2 .52 13.27 1232.1 73925.5 119.2 2.51 47 0 .86 2 .08 73925.5 119.2 2.51 13.19 1222.0 73318.9 118.3 2.49 48 0 .00 0 .00 73318.9 118.3 2 .49 13.09 1209.9 72593.0 117.1 2.47 49 72593.0 117.1 2 .47 12.97 1196.9 71811 .4 115.8 2 .45 50 71811 .4 115.8 2 .45 12.84 1184.0 71037.3 114.6 2 .42 5 1 71037.3 114.6 2.42 12.71 1171.2 70270.9 113.3 2 .40 52 70270.9 113.3 2 .40 12.58 1158.5 6 9512.4 112.1 2 .38 53 6 9 512.4 112.1 2 .38 12.45 1146.0 68761 .5 110.9 2.36 54 68761 .5 110.9 2 .36 12.32 1133.6 68018.4 109.7 2 .33 55 68018.4 109.7 2.33 12.19 1121.4 67283.0 108 .5 2 .31 56 67283.0 108.5 2 .31 12.07 1109.3 66555.2 107.3 2 .29 57 66555.2 107.3 2.29 11 .94 1097.3 6 5835.0 106.2 2.27 58 65835.0 106.2 2 .27 11 .81 1085.4 65122.4 105.0 2.25 59 65122.4 105.0 2 .25 11 .6 9 1073.6 64417.4 103.9 2.23 60 64417.4 103.9 2 .23 11.56 1062.0 6 3719.9 102.8 2 .20 70 60 50 ....-.... ~ 40 0 ..._... 0 30 20 10 0 0 10 South Hydrograph 100 Year Storm 20 30 40 Time (min) ------Qpre -a-Qpost _,,_ Qweir 50 60 SOUTH DRAINAOE AREA Routing 50Year Detention Pond Bottom Width (ft} 40 Tc (min} Length (ft) 16 16 620 SideSloees Rectangular Weir Maximum Conditions Peak Flows (cfs) Rise Run Bottom Width (ft} Height Qweir 27.56 63.72 3 1 1.65 2 .45 12.87 Tc Qpre Qpost Vine . Vtotal Ax-sec H Qweir s/dt Vstorage Ax-sec Hstorage (min) ~ ~ _ML _ML __(fill._ _lf!}_ ~ _{ff}_ __(fill._ _Jfil_ 0 0 .00 0 .00 0 .0 0 .0 0 .0 0 .00 0 .00 0 .0 0.0 0.0 0.00 1 1.72 3 .98 239.0 239.0 0.4 0 .01 0 .00 2 .0 119.3 0 .2 0.00 2 3.45 7.97 477.9 597.2 1.0 0 .02 0 .02 8 .0 477.1 0 .8 0 .02 3 5 .17 11 .95 716.9 1194.0 1.9 0 .05 0 .05 17 .9 1072.5 1.7 0.04 4 6.89 15.93 955.8 2028.3 3 .3 0.08 0 .11 31 .7 1904.0 3 .1 0 .08 5 8 .61 19.91 1194.8 3098.8 5 .0 0 .12 0 .20 49 .5 2969.9 4.8 0.12 6 10.34 23.90 1433.7 4403.6 7.1 0.18 0 .34 71 .1 4267.7 6 .9 0.17 7 12.06 27.88 1672.7 5940.4 9 .6 0.24 0 .53 96.6 5794.8 9 .3 0.23 8 13.78 31.86 1911.6 7706.4 12.4 0.30 0 .77 125.8 7548.0 12.2 0.30 9 15.50 35.84 2150.6 9698.6 15.6 0 .38 1.07 158.7 9524.0 15.4 0.37 10 17.23 39.83 2389.5 11913.6 19.2 0.46 1.42 195.3 11719.4 18.9 0.46 11 18.95 43.81 2628.5 14347.9 23.1 0 .56 1.84 235.5 14130.5 22.8 0.55 12 20.67 47.79 2867.4 16997.9 27.4 0.65 2 .32 279.2 16753.6 27.0 0.64 13 22.39 51 .77 3106.4 19860.0 32.0 0 .76 2 .86 326.4 19585.3 31 .6 0 .75 14 24.12 55.76 3345.4 22930.7 37.0 0 .87 3.45 377.0 22622.0 36.5 0 .86 15 25.84 59.74 3584.3 26206.3 42.3 0 .98 4.10 431 .0 25860.3 41.7 0 .97 16 27.56 63.72 3823.3 29683.5 47.9 1.11 4.80 488.3 29297.1 47.3 1.09 17 26.70 61 .73 3703.8 33000.9 53.2 1.22 5.47 545.9 32752.5 52.8 1.21 18 25.84 59.74 3584.3 36336.8 58.6 1.33 6.15 600.8 36048.0 58.1 1.32 19 24.98 57.75 3464.8 39512.8 63.7 1.44 6.79 653.1 39184.4 63.2 1.43 20 24.12 55.76 3345.4 42529.8 68.6 1.54 7.40 702 .7 42163.9 68.0 1.53 21 23.25 53.76 3225.9 45389.8 73.2 1.63 7.97 749 .8 44988.6 72.6 1.62 22 22.39 51.77 3106.4 48095.0 77.6 1.72 8 .50 794 .3 47660.6 76.9 1.70 23 21 .53 49.78 2986.9 50647.6 81 .7 1.80 9 .00 836.4 50182.3 80.9 1.78 24 20.67 47.79 2867.4 53049.7 85.6 1.88 9 .46 875.9 52555.6 84.8 1.86 25 19 .81 45.80 2748.0 55303.6 89.2 1.95 9 .89 913 .0 54782.7 88.4 1.93 26 18.95 43 .81 2628.5 57411 .2 92.6 2 .01 10.29 947.8 56865.6 91 .7 1.99 27 18.09 41.82 2509.0 59374.6 95 .8 2 .07 10.65 980.1 588 06.2 94.8 2.05 28 17.23 39.83 2389.5 61195.7 98 .7 2 .13 10.98 1010.1 60606.4 97.8 2 .11 29 16.36 37.83 2270 .1 62876.5 101.4 2 .18 11 .29 1037.8 62268.0 100.4 2.16 30 15.50 35.84 2150.6 64418.6 103.9 2 .23 11 .56 1063.2 63792.8 102.9 2.21 31 14.64 33.85 2031 .1 65823.9 106.2 2 .27 11 .81 1086.4 65182.4 105.1 2.25 32 13.78 31 .86 1911 .6 67094.0 108.2 2 .31 12.03 1107.3 66438.4 107.2 2.29 33 12 .92 29.87 1792.2 68230.6 110.0 2 .34 12.23 1126.0 67562.4 109.0 2.32 34 12 .06 27.88 1672.7 69235.1 111 .7 2.37 12.40 1142.6 68555.9 110.6 2 .35 35 11 .20 25.89 1553.2 70109.1 113.1 2.40 12.55 1157.0 69420.2 112.0 2.38 36 10.34 23.90 1433.7 70854.0 114.3 2.42 12.68 1169.3 70156.9 113.2 2.40 37 9.47 21 .90 70156.9 113.2 2.40 12 .56 1179.6 70773.8 114.2 2.42 38 8 .61 19.91 70773.8 114.2 2.42 12.66 1187.9 71271.6 115.0 2.43 39 7 .75 17.92 71271 .6 115.0 2.43 12.75 1194.1 71644.4 115.6 2.44 40 6 .89 15.93 71644.4 115.6 @ 12.81 1198.2 71893.2 116.0 2 .45 41 6 .03 13 .94 71893.2 116.0 dn.b1200.3 720 19.5 116.2 2.45 42 5 .17 11 .95 72019.5 116.2 1200.4 72024.4 116.2 2.45 43 4.31 9.96 72024.4 116.2 11 98 .5 71909.2 116.0 2 .45 44 3.45 7 .97 71909.2 116.0 2 .45 12.85 1194.6 71675.1 115.6 2.44 45 2 .58 5 .97 71675.1 115.6 2 .44 12.81 1188.7 71323.2 115.0 2.43 46 1.72 3 .98 71323.2 115.0 2.43 12 .76 1180.9 70854.8 114.3 2 .42 47 0 .86 1.99 70854.8 114.3 2.42 12.68 1171 .2 70271 .1 113.3 2.40 48 0 .00 0 .00 70271 .1 113.3 2 .40 12.58 1159.6 69573 .2 11 2 .2 2 .38 49 69573.2 112.2 2 .38 12.46 1147.0 68822.0 111 .0 2.36 50 68822.0 111 .0 2.36 12 .33 1134.6 68078.3 109.8 2 .34 51 68078.3 109.8 2 .34 12.20 1122.4 67342.2 108.6 2 .31 52 67342.2 108.6 2.31 12.08 1110.2 66613.8 107.4 2 .29 53 66613.8 107.4 2 .29 11 .95 1098.2 65893.1 106.3 2.27 54 65893.1 106.3 2 .27 11 .82 1086.3 65179.9 105.1 2.25 55 65179.9 105.1 2 .25 11 .70 1074.6 64474.2 104.0 2 .23 56 64474.2 104.0 2 .23 11.57 1062.9 63776.1 102.9 2 .21 57 63776.1 102.9 2 .21 11.45 1051.4 63085.4 101.8 2 .19 58 63085 .4 101 .8 2.19 11.33 1040.0 62402.2 100.6 2 .16 59 62402.2 100.6 2.16 11 .20 1028.8 61726.3 99.6 2.14 60 61726.3 99.6 2 .14 11 .08 1017.6 61 057.8 98.5 2.12 South Hydrograph 50 Year Storm 70 ~~~~~~~~~~~~~~~ 60 -r-~-+----~~~~~---t-~~-+--~~ 50 -T--~---+-~~~~---+-~~-+-~-+-~~ ....-... ~40 -+------_.__-~------+----+---~ 0 ..._.... -~30 -r---r-+-~---+~~~-----+-~~-r-~~ 20 -r---¢-~~~-+-~---+-~~-+-~---+-~__, 10 +----t~~---i-~~~s:::~~==:t::=~~ 0 ~~~----1-----1------l---~-+-----------l 0 10 20 30 40 50 60 Time (min) ~ Qpre ~ Qpost ~ Qweir SOUTH DRAINAGE AREA Routing 25 Year Detention Pond Bottom Width {ft} 40 Tc{min} Length (ft) 16 16 620 SideSl011es Rectangular Weir Maximum Conditions Peak Flows {cfs} Rise Run Bottom Width {ft} Height Qweir 27.56 56.22 3 1 1.65 2.20 11.42 Tc Qpre Qpost Vine. Vtotal Ax-sec H Qweir s/dt Vstorage Ax-sec Hstorage {min} ~ ~ _{ffL _{ffL _JfilL -1f!L ~ --_{ff}__ _JfilL --1f1L 0 0.00 0.00 0.0 0.0 0.0 0.00 0.00 0.0 0.0 0.0 0.00 1 1.72 3.51 210.8 210.8 0.3 0.01 0.00 1.8 105.3 0.2 0.00 2 3.45 7.03 421.7 527.0 0.8 0.02 0.01 7.0 421.0 0.7 0.02 3 5.17 10.54 632.5 1053.5 1.7 0.04 0.04 15.8 946.4 1.5 0.04 4 6.89 14.06 843.3 1789.8 2.9 0.07 0.09 28.0 1680.4 2.7 0.07 5 8.61 17.57 1054.2 2734.5 4.4 0.11 0.17 43.7 2621.3 4.2 0.10 6 10.34 21.08 1265.0 3886.3 6.3 0.15 0.29 62.8 3767.2 6.1 0.15 7 12.06 24.60 1475.8 5243.1 8.5 0.21 0.44 85.3 5115.9 8.3 0.20 8 13.78 28.11 1686.7 6802.5 11.0 0.27 0.64 111.1 6664.6 10.7 0.26 9 15.50 31.63 1897.5 8562.1 13.8 0.34 0.89 140.2 8410.6 13.6 0.33 10 17.23 35.14 2108.4 10518.9 17.0 0.41 1.20 172.5 10350.8 16.7 0.41 11 18.95 38.65 2319.2 12670.0 20.4 0.49 1.55 208.0 12482.2 20.1 0.49 12 20.67 42.17 2530.0 15012.2 24.2 0.58 1.96 246.7 14801.5 23.9 0.57 13 22.39 45.68 2740.9 17542.4 28.3 0.67 2.42 288.4 17305.6 27.9 0.66 14 24.12 49.19 2951.7 20257.3 32.7 0.77 2.93 333.2 19991.3 32.2 0.76 15 25.84 52.71 3162.5 23153.9 37.3 0.88 3.49 380.9 22855.6 36.9 0.87 16 ~ 56.22 3373.4 26229.0 42.3 0.98 4.10 431.6 25895.6 41.8 0.97 17 7 54.47 3267.9 29163.5 47.0 1.09 4.69 482.5 28952.3 46.7 1.08 18 25.84 52.71 3162.5 32114.8 51.8 1.19 5.29 531.1 31868.0 51.4 1.18 19 24.98 50.95 3057.1 34925.1 56.3 1.28 5.86 577.4 34643.3 55.9 1.27 20 24.12 49.19 2951.7 37595.0 60.6 1.37 6.40 621.3 37279.8 60.1 1.36 21 23.25 47.44 2846.3 40126.0 64.7 1.46 6.91 663.0 39779.2 64.2 1.45 22 22.39 45.68 2740.9 42520.1 68.6 1.54 7.40 702.4 42143.5 68.0 1.52 23 21.53 43.92 2635.4 44779.0 72.2 1.61 7.85 739.6 44374.4 71.6 1.60 24 20.67 42.17 2530.0 46904.4 75.7 1.68 8.27 774.6 46473.8 75.0 1.67 25 19.81 40.41 2424.6 48898.4 78.9 1.74 8.66 807.4 48443.3 78.1 1.73 26 18.95 38.65 2319.2 50762.5 81.9 1.80 9.02 838.1 50284.8 81.1 1.79 27 18.09 36.90 2213.8 52498.5 84.7 1.86 9.36 866.7 51999.9 83.9 1.84 28 17.23 35.14 2108.4 54108.2 87.3 1.91 9.66 893.2 53590.3 86.4 1.89 29 16.36 33.38 2002.9 55593.2 89.7 1.96 9.95 917.6 55057.6 88.8 1.94 30 15.50 31.63 1897.5 56955.2 91.9 2.00 10.20 940.1 56403.4 91.0 1.98 31 14.64 29.87 1792.1 58195.5 93.9 2.04 10.43 960.5 57629.2 93.0 2.02 32 13.78 28.11 1686.7 59315.9 95.7 2.07 10.64 978.9 58736.4 94.7 2.05 33 12.92 26.35 1581.3 60317.7 97.3 2.10 10.82 995.4 59726.4 96.3 2.08 34 12.06 24.60 1475.8 61202.3 98.7 2.13 10.99 1010.0 60600.7 97.7 2.11 35 11.20 22.84 1370.4 61971.1 100.0 2.15 11.12 1022.7 61360.6 99.0 2.13 36 10.34 21.08 1265.0 62625.6 101.0 2.17 11.24 1033.5 62007.2 100.0 2.15 37 9.47 19.33 62007.2 100.0 2.15 11.13 1042.5 62548.3 100.9 2.17 38 8.61 17.57 62548.3 100.9 2.17 11.23 1049.7 62984.4 101.6 2.18 39 7.75 15.81 62984.4 101.6 2.18 J 11.31 1055.2 63309.8 102.1 2.19 40 6.89 14.06 63309.8 102.1 2.19 11.37 1058.8 63525.6 102.5 2.20 41 6.03 12.30 63525.6 102.5 ~ 1 40 1060.6 63633.2 102.6 2.20 42 5.17 10.54 63633.2 102.6 11.42 1060.6 63633.6 102.6 2.20 43 4.31 8.78 63633.6 102.6 .42 1058.8 63527.9 102.5 2.20 44 3.45 7.03 63527.9 102.5 11.40 1055.3 63317.5 102.1 2.19 45 2.58 5.27 63317.5 102.1 2.19 11.37 1050.1 63003.3 101.6 2.18 46 1.72 3.51 63003.3 101.6 2.18 11.31 1043.1 62586.5 100.9 2.17 47 0.86 1.76 62586.5 100.9 2.17 11.24 1034.5 62068.2 100.1 2.15 48 0.00 0.00 62068.2 100.1 2.15 11.14 1024.2 61449.6 99.1 2.14 49 61449.6 99.1 2.14 11.03 1013.1 60784.4 98.0 2.12 50 60784.4 98.0 2.12 10.91 1002.1 60126.2 97.0 2.10 51 60126.2 97.0 2.10 10.79 991.3 59475.3 95.9 2.08 52 59475.3 95.9 2.08 10.67 980.5 58831.5 94.9 2.06 53 58831.5 94.9 2.06 10.55 969.9 58194.9 93.9 2.04 54 58194.9 93.9 2.04 10.43 959.4 57565.4 92.8 2.02 55 57565.4 92.8 2.02 10.32 949.0 56943.0 91.8 2.00 56 56943.0 91.8 2.00 10.20 938.8 56327.5 90.9 1.98 57 56327.5 90.9 1.98 10.08 928.6 55719.0 89.9 1.96 58 55719.0 89.9 1.96 9.97 918.6 55117.4 88.9 1.94 59 55117.4 88.9 1.94 9.86 908.7 54522.6 87.9 1.92 60 54522.6 87.9 1.92 9.74 898.9 53934.6 87.0 1.90 ...-... ~ South Hydrograph 25 Year Storm 60 ,-----~--.---~--,~~---.-~~~~~~~ 50 -i--~--+---+-~~~-l-~~4--~-+-~~ 40 -+--~-l-e--~-+----~~~-+-~-I-~~ ~30 -+---+-+------4----+------4----+---~ 0 20 -t---t-~>"--~-t--~--+-~--.---t--~-+-~____, 10 +----4~--+----+----:c-=--4~~~~~~~--.J 0 ~~~----1----l----l----~--1---__j 0 10 20 30 40 50 60 Time (min) ~ Qpre -a-Qpost --Qweir SOUTH DRAINAOE AREA Routing 10 Year Detention Pond Bottom Width (ft) 40 Tc (min) Length (ft) 16 16 620 SideSl011es Rectangular Weir Maximum Conditions Peak Flows (cfs) Rise Run Bottom Width (ft) Height Qweir 27.56 49.10 3 1 1.65 1.96 9.97 Tc Qpre Qpost Vine. Vtotal Ax-sec H Qweir s/dt Vstorage Ax-sec Hstorage (min) _M& _M& _@_ _@_ _ML _il!L _M& --_kfL _ML ---1f!L 0 0.00 0.00 0.0 0.0 0.0 0.00 0.00 0.0 0.0 0.0 0.00 1 1.72 3.07 184.1 184.1 0.3 0.01 0.00 1.5 92.0 0.1 0.00 2 3.45 6.14 368.2 460.2 0.7 0.02 0.01 6.1 367.7 0.6 0.01 3 5.17 9.21 552.4 920.1 1.5 0.04 0.03 13.8 826.6 1.3 0.03 4 6.89 12.27 736.5 1563.1 2.5 0.06 0.07 24.5 1467.8 2.4 0.06 5 8.61 15.34 920.6 2388.4 3.9 0.10 0.14 38.2 2290.0 3.7 0.09 6 10.34 18.41 1104.7 3394.7 5.5 0.14 0.23 54.9 3291.5 5.3 0.13 7 12.06 21.48 1288.9 4580.3 7.4 0.18 0.36 74.5 4470.4 7.2 0.18 8 13.78 24.55 1473.0 5943.3 9.6 0.24 0.53 97.1 5824.5 9.4 0.23 9 15.50 27.62 1657.1 7481.6 12.1 0.30 0.74 122.5 7351.6 11.9 0.29 10 17.23 30.69 1841.2 9192.8 14.8 0.36 0.99 150.8 9049.0 14.6 0.36 11 18.95 33.76 2025.4 11074.3 17.9 0.43 1.29 181.9 10914.0 17.6 0.43 12 20.67 36.82 2209.5 13123.5 21.2 0.51 1.63 215.7 12944.1 20.9 0.50 13 22.39 39.89 2393.6 15337.7 24.7 0.59 2.02 252.3 15136.3 24.4 0.58 14 24.12 42.96 2577.7 17714.0 28.6 0.68 2.45 291.5 17487.9 28.2 0.67 15 25.84 46.03 2761.9 20249.7 32.7 0.77 2.93 333.3 19996.2 32.3 0.76 16 27.56 49.10 2946.0 22942.2 37.0 0.87 3.45 377.6 22658.6 36.5 0.86 17 26.70 47.57 2853.9 25512.5 41.1 0.96 3.96 422.3 25336.1 40.9 0.95 18 25.84 46.03 2761.9 28097.9 45.3 1.05 4.48 464.8 27890.7 45.0 1.04 19 24.98 44.50 2669.8 30560.5 49.3 1.14 4.98 505.4 30322.9 48.9 1.13 20 24.12 42.96 2577.7 32900.6 53.1 1.22 5.45 543.9 32633.9 52.6 1.21 21 23.25 41.43 2485.7 35119.5 56.6 1.29 5.90 580.4 34825.0 56.2 1.28 22 22.39 39.89 2393.6 37218.6 60.0 1.36 6.33 615.0 36897.9 59.5 1.35 23 21.53 38.36 2301.5 39199.4 63.2 1.43 6.73 647.6 38853.8 62.7 1.42 24 20.67 36.82 2209.5 41063.3 66.2 1.49 7.10 678.2 40694.4 65.6 1.48 25 19.81 35.29 2117.4 42811.9 69.1 1.55 7.45 707.0 42421.2 68.4 1.53 26 18.95 33.76 2025.4 44446.6 71.7 1.60 7.78 733.9 44035.6 71.0 1.59 27 18.09 32.22 1933.3 45968.9 74.1 1.65 8.08 759.0 45539.0 73.5 1.64 28 17.23 30.69 1841.2 47380.3 76.4 1.70 8.36 782.2 46933.0 75.7 1.68 29 16.36 29.15 1749.2 48682.2 78.5 1.74 8.62 803.6 48218.9 77.8 1.72 30 15.50 27.62 1657.1 49876.0 80.4 1.77 8.85 823.3 49398.0 79.7 1.76 31 14.64 26.08 1565.0 50963.1 82.2 1.81 9.06 841.2 50471.8 81.4 1.79 32 13.78 24.55 1473.0 51944.8 83.8 1.84 9.25 857.4 51441.5 83.0 1.82 33 12.92 23.02 1380.9 52822.4 85.2 1.87 9.42 871.8 52308.4 84.4 1.85 34 12.06 21.48 1288.9 53597.2 86.4 1.89 9.57 884.6 53073.7 85.6 1.88 35 11.20 19.95 1196.8 54270.5 87.5 1.91 9.70 895.6 53738.6 86.7 1.90 36 10.34 18.41 1104.7 54843.4 88.5 1.93 9.80 905.1 54304.4 87.6 1.91 37 9.47 16.88 54304.4 87.6 1.91 9.70 913.0 54777.9 88.4 1.93 38 8.61 15.34 54777.9 88.4 1.93 9.79 919.3 55159.8 89.0 1.94 39 7.75 13.81 55159.8 89.0 1.94 9.86 924.1 55444.7 89.4 1.95 40 6.89 12.27 55444.7 89.4 1.95 1 9.92 927.2 55633.8 89.7 1.96 41 6.03 10.74 55633.8 89.7 ® 9.95 928.8 55728.1 89.9 1.96 42 5.17 9.21 55728.1 89.9 ~ 928.8 55728.7 89.9 1.96 43 4.31 7.67 55728.7 89.9 7 927.3 55636.8 89.7 1.96 44 3.45 6.14 55636.8 89.7 1.96 9.95 924.2 55453.3 89.4 1.95 45 2.58 4.60 55453.3 89.4 1.95 9.92 919.7 55179.3 89.0 1.94 46 1.72 3.07 55179.3 89.0 1.94 9.87 913.6 54815.8 88.4 1.93 47 0.86 1.53 54815.8 88.4 1.93 9.80 906.1 54363.9 87.7 1.92 48 0.00 0.00 54363.9 87.7 1.92 9.71 897.1 53824.6 86.8 1.90 49 53824.6 86.8 1.90 9.61 887.4 53244.9 85.9 1.88 50 53244.9 85.9 1.88 9.50 877.9 52671.6 85.0 1.86 51 52671.6 85.0 1.86 9.39 868.4 52104.9 84.0 1.85 52 52104.9 84.0 1.85 9.28 859.1 51544.8 83.1 1.83 53 51544.8 83.1 1.83 9.17 849.9 50991.1 82.2 1.81 54 50991.1 82.2 1.81 9.07 840.7 50444.0 81.4 1.79 55 50444.0 81.4 1.79 8.96 831.7 49903.2 80.5 1.78 56 49903.2 80.5 1.78 8.85 822.8 49368.7 79.6 1.76 57 49368.7 79.6 1.76 8.75 814.0 48840.6 78.8 1.74 58 48840.6 78.8 1.74 8.65 805.3 48318.6 77.9 1.73 59 48318.6 77.9 1.73 8.55 796.7 47802.8 77.1 1.71 60 47802.8 77.1 1.71 8.44 788.2 47293.1 76.3 1.69 0 10 South Hydrograph 10 Year Storm 20 30 40 Time (min) -e-Qpre -e-Qpost -----Qweir 50 60 SOUTH DRAINAGE AREA Routing 5 Year Detention Pond Bottom Width {ft) 40 Tc{minl Length {ft) 16 16 620 SideSl011es Rectangular Weir Maximum Conditions Peak Flows {cfs) Rise Run Bottom Width {ft) Height Qweir 24.39 43.47 3 1 1.65 1.76 8.78 Tc Qpre Qpost Vine. Vtotal Ax-sec H Qweir s/dt Vstorage Ax-sec Hstorage (min) _M& _M& __@_ __@_ _JfilL -1f!L _M& --_{ff)_ _JfilL -1f!L 0 0.00 0.00 0.0 0.0 0.0 0.00 0.00 0.0 0.0 0.0 0.00 1 1.49 2.n 163.0 163.0 0.3 0.01 0.00 1.4 81.4 0.1 0.00 2 2.97 5.43 326.0 407.4 0.7 0.02 0.01 5.4 325.6 0.5 0.01 3 4.46 8.15 489.0 814.6 1.3 0.03 0.03 12.2 731.9 1.2 0.03 4 5.95 10.87 652.0 1383.9 2.2 0.06 0.06 21.7 1299.7 2.1 0.05 5 7.44 13.58 815.0 2114.7 3.4 0.08 0.12 33.8 2027.9 3.3 0.08 6 8.92 16.30 978.0 3005.9 4.8 0.12 0.20 48.6 2915.0 4.7 0.12 7 10.41 19.02 1141.0 4056.0 6.5 0.16 0.30 66.0 3959.6 6.4 0.16 8 11.90 21.73 1304.0 5263.6 8.5 0.21 0.44 86.0 5159.6 8.3 0.20 9 13.39 24.45 1467.0 6626.7 10.7 0.26 0.62 108.6 6513.3 10.5 0.26 10 14.87 27.17 1630.0 8143.3 13.1 0.32 0.83 133.6 8018.2 12.9 0.32 11 16.36 29.88 1793.0 9811.3 15.8 0.38 1.08 161.2 oon.3 15.6 0.38 12 17.85 32.60 1956.0 11628.3 18.8 0.45 1.38 191.2 11473.0 18.5 0.45 13 19.34 35.32 2119.0 13592.0 21.9 0.53 1.71 223.6 13418.0 21.6 0.52 14 20.82 38.03 2282.0 15700.0 25.3 0.61 2.08 258.4 15504.8 25.0 0.60 15 22.31 40.75 2445.0 17949.8 29.0 0.69 2.50 295.5 17731.0 28.6 0.68 16 23.80 43.47 2608.0 20339.0 32.8 0.78 2.95 334.9 20094.2 32.4 0.77 17 23.06 42.11 2526.5 22620.7 36.5 0.86 3.39 374.5 22471.3 36.2 0.85 18 22.31 40.75 2445.0 24916.4 40.2 0.94 3.84 412.3 24740.1 39.9 0.93 19 21.57 39.39 2363.5 27103.6 43.7 1.02 4.28 448.3 26900.7 43.4 1.01 20 20.82 38.03 2282.0 29182.8 47.1 1.09 4.70 482.6 28954.2 46.7 1.08 21 20.08 36.68 2200.5 31154.7 50.2 1.16 5.10 515.0 30901.7 49.8 1.15 22 19.34 35.32 2119.0 33020.7 53.3 1.22 5.47 545.7 32744.3 52.8 1.21 23 18.59 33.96 2037.5 34781.8 56.1 1.28 5.83 574.7 34483.4 55.6 1.27 24 17.85 32.60 1956.0 36439.4 58.8 1.34 6.17 602.0 36120.1 58.3 1.32 25 17.11 31.24 1874.5 37994.7 61.3 1.39 6.48 627.6 37655.8 60.7 1.38 26 16.36 29.88 1793.0 39448.9 63.6 1.44 6.78 651.5 39091.8 63.1 1.42 27 15.62 28.53 1711.5 40803.3 65.8 1.48 7.05 673.8 40429.2 65.2 1.47 28 14.87 27.17 1630.0 42059.2 67.8 1.52 7.30 694.5 41669.4 67.2 1.51 29 14.13 25.81 1548.5 43217.9 69.7 1.56 7.53 713.6 42813.5 69.1 1.55 30 13.39 24.45 1467.0 44280.5 71.4 1.59 7.75 731.0 43862.8 70.7 1.58 31 12.64 23.09 1385.5 45248.4 73.0 1.63 7.94 747.0 44818.5 n.3 1.61 32 11.90 21.73 1304.0 46122.5 74.4 1.65 8.11 761.4 45681.7 73.7 1.64 33 11.16 20.38 1222.5 46904.2 75.7 1.68 8.27 774.2 46453.6 74.9 1.67 34 10.41 19.02 1141.0 47594.6 76.8 1.70 8.40 785.6 47135.2 76.0 1.69 35 9.67 17.66 1059.5 48194.7 77.7 1.n 8.52 795.5 47n7.8 77.0 1.71 36 8.92 16.30 978.0 48705.8 78.6 1.74 8.62 803.9 48232.3 77.8 1.n 37 8.18 14.94 48232.3 77.8 1.n 8.53 810.9 48655.0 78.5 1.74 38 7.44 13.58 48655.0 78.5 1.74 8.61 816.6 48996.6 79.0 1.75 39 6.69 12.23 48996.6 79.0 1.75 ~ 8.68 820.9 49252.2 79.4 1.75 40 5.95 10.87 49252.2 79.4 1.75 8.73 823.7 49422.8 79.7 1.76 41 5.21 9.51 49422.8 79.7 ([§)~ 825.2 49509.3 79.9 1.76 42 4.46 8.15 49509.3 79.9 8.78 825.2 49512.9 79.9 1.76 43 3.n 6.79 49512.9 79.9 6 823.9 49434.4 79.7 1.76 44 2.97 5.43 49434.4 79.7 8.76 821.2 49274.9 79.5 1.76 45 2.23 4.08 49274.9 79.5 1.76 8.73 817.3 49035.3 79.1 1.75 46 1.49 2.n 49035.3 79.1 1.75 8.69 811.9 48716.5 78.6 1.74 47 0.74 1.36 48716.5 78.6 1.74 8.62 805.3 48319.5 77.9 1.73 48 0.00 0.00 48319.5 77.9 1.73 8.55 797.4 47845.2 77.2 1.71 49 47845.2 77.2 1.71 8.45 788.9 47335.2 76.3 1.69 50 47335.2 76.3 1.69 8.35 780.5 46831.1 75.5 1.68 51 46831.1 75.5 1.68 8.25 ?n.2 46332.9 74.7 1.66 52 46332.9 74.7 1.66 8.15 764.0 45840.7 73.9 1.65 53 45840.7 73.9 1.65 8.06 755.9 45354.4 73.2 1.63 54 45354.4 73.2 1.63 7.96 747.9 44873.9 n.4 1.61 55 44873.9 n.4 1.61 7.87 740.0 44399.1 71.6 1.60 56 44399.1 71.6 1.60 7.77 732.2 43930.0 70.9 1.58 57 43930.0 70.9 1.58 7.68 n4.4 43466.6 70.1 1.57 58 43466.6 70.1 1.57 7.58 716.8 43008.7 69.4 1.55 59 43008.7 69.4 1.55 7.49 709.3 42556.4 68.6 1.54 60 42556.4 68.6 1.54 7.40 701.8 42109.5 67.9 1.52 South Hydrograph 5 Year Storm 0 ~~=-+----+------+----+-------=~------1 0 10 20 30 40 50 60 Time (min) ----<>--Qpre -a-Qpost ---Qweir Project Description Project File Worksheet Flow Element Method Solve For Input Data Mannings Coefficient Chamel Slope Diameter Results Depth Discharge Flow Area Wetted Perimeter Top Width Critical Depth Percent Full Critical Slope Velocity Velocity Head Specific Energy Froude Number Maximum Discharge Full Flow Capacity Full Flow Slope Available Capacity Worksheet for Circular Channel c :\haestad\fmw\2580351 d.fm2 Available Capacity along Krenek Tap Circular Chamel Manning's Formula Full Flow Capacity 0. 42. 3.50 75 .95 9.62 11.00 0.00 2.73 100.00 ft/ft in ft cfs ft2 ft ft ft 0 .006295 ft/ft 7.89 0.97 FULL FULL 81 .70 ft/s ft ft cf s 75 .95 cfs 0.005700 ft/ft • Municipal Development Group 04/07 1'£15 11 :05:57 AM Haestad Methods, Inc. 37 Brookside Road Waterbury, CT06708 (203) 755-1666 FlowMaster v5.0 7 Page 1 of 1 Project Description Project File Worksheet Flow Element Method Solve For Brisben's Drainage (RCP) Worksheet for Circular Channel c:'haestad\fmw\2580351 d. fm2 Brisben's Drainage (RCP) to South Circuar Chamel Manning's Formua Ful Flow Diameter ---'lnp~~_D_a_ta~~~~~~~~-.~~,b'/' ? Marrings Coefficient fJ Chamel Slope Discharge Re5Uts Depth Diameter Flow Area Wetted Perimeter Top Width Critical Depth Percent Ful Critical Slope Velocity Velocity Head Specific Energy Froude Number Maximum Discharge Ful Flow Capacity Full Flow Slope 04/07195 11 :06:20AM 0. 52 . 34.5 34.51 6.49 9.03 0.00 2.37 100.00 ft in in ft2 ft ft ft 0.007677 ft/ft 8.07 ft/s 1.01 ft FULL ft FULL 56 .38 cf s 52.41 cf s 0.007740 ft/ft Municipal Development Group Haestad Methods, Inc . 37 Brookside Road Waterbury, CT06708 (203) 755-1666 FlowMaster v5.07 Page 1 of 1 Project Description Project File Worksheet Flow Element Method Solve For Input Data Mamings Coefficient Chamel Slope Diameter Rewts Depth Discharge Flow Area Wetted Perimeter Top Width Critical Depth Percent Ful Critical Slope Velocity Velocity Head Specific Energy Froude Number Maximum Discharge Full Flow Capacity Ful Flow Slope Brisben's Drainage (36" RCP) Worksheet for Circular Channel c: 'Jiaestad\fmw\2580351 d. fm2 Brisben's Drainage (36" RCP) to South Circuar Chamel Maming's Formua Ful Flow Capacity 0 .013 0. 0077 40 ft/ft 36.00 in 36.0 in 58 .68 cf s 7.07 ft2 9.42 ft 0 .00 ft 2.48 ft 100.00 0 .007636 ft/ft 8.30 ft/s 1.07 ft FULL ft FULL 63 .12 cf s 58.68 cf s 0.007740 ft/ft Municipal Development Group 04,{)7/gfj 11 :35:29AM Haestad Methods, Inc. 37 Brookside Road Waterbury, CT 06700 (203) 755-1666 FlowMaster v5.07 Page 1 of 1 Project Description Project File Worksheet Flow Element Method Solve For Input Data Mamings Coefficient Chamel Slope Discharge Resuts Depth Diameter Flow /1.rea Wetted Perimeter Top Width Critical Depth Percent Ful Critical Slope Velocity Velocity Head Specific Energy Froude Number Maximum Discharge Ful Flow Capacity Full Flow Slope Flow is subcritical. 04l07/f15 11 :06:34AM S. Madison's Drainage (RCP) Worksheet for Circular Channel c :\haestad\fmw\2580351 d.fm2 S. Madison's Drainage (RCP) to South Circuar Channel Maming's Formua Ful Flow Diameter 0.013 0 .007740 ft/ft 72 .94 cf s 39.1 in 39.06 in 8.32 ft2 10.23 ft 0.76e-7 ft 2.70 ft 100.00 0.007559 ft/ft 8.77 ft/s 1.19 ft 4.45 ft 0.15e-3 78.46 cf s 72.94 cf s 0 .007740 ft/ft Municipal Development Group Haestad Methods, Inc. 37 Brookside Road Waterbury, CT 06708 (203) 755-1666 FlowMaster v5.07 Page 1 of 1 Project Description Project File Worksheet Flow Element Method Solve For Input Data Mamings Coefficient Chamel Slope Diameter Re5Uts Depth Discharge Flow Area Wetted Perimeter Top Width Critical Depth Percent Ful Critical Slope Velocity Velocity Head Specific Energy Froude Number Maximum Discharge Ful Flow Capacity Full Flow Slope 04.o7/'i¥5 11 :35:49AM S. Madison's Drainage (42" RCP) Worksheet for Circular Channel c:\haestad\fmw\2580351 d. fm2 S. Madison's Drainage (42" RCP) to South Circuar Chamel Maming's Formua Ful Flow Capacity 0.013 0.007740 ft/ft 42.00 in 42.0 in 88 .51 cf s 9.62 ft2 11.00 ft 0.00 ft 2.92 ft 100.00 0.007494 ft/ft 9.20 ft/s 1.32 ft FULL ft FULL 95.21 cf s 88.51 cf s 0.007740 ft/ft Municipal Development Group Haestad Methods, Inc. 37 Brookside Road Waterbury, CT 06706 (203) 755-1666 FlowMaster v5.07 Page 1 of 1 . ! ......... ________ __ TO MUNICIPAL DEVELOPMENT GROUP P.O. Box 9249 203 Holleman Drive East College Station, Texas 77840-9249 (409) 693-5359 l l111~~~ JOa NO. WE ARE SENDING YOU ~ttached 0 Under separate cover via ________ the following items: COPIES 1l; ~/ O Shop drawings 0 Copy of letter DATE NO. ~ '"' '7\\f; ~ ((") ~~b [] Prints a/Plans 0 Samples 0 Specifications O Change order D--------------------~ DESCRIPTION ~-1"1..M"'l,~b .-u~ ~v hU~RA"°' v THESE ARE TRANSMITIED as checked below: E(f°or approval 0 For your use 0 As requested 0 Approved as submitted 0 Approved as noted O Returned for corrections 0 Resubmit __ copies for approval 0 Submit __ copies for distribution 0 Retum __ corrected prints O For review and comment 0 ---------------------- 0 FOR BIDS DUE _________ l9 ___ 0 PRINTS RETURNED AFTER LOAN TO US REMARKS-------------------------------------~ COPY TO·-------------------\ . ! TO MUNICIPAL DEVELOPMENT GROUP P.O. Box 9249 203 Holleman Drive East College Station, Texas 77840-9249 (409) 693-5359 ~\~\;:'( ~ WE ARE SENDING YOU ~ched 0 Under separate cover via ________ the following items: COPIES 1/' v 0 Shop drawings O Copy of letter DATE HO. ~ ./1 4W? ·~~Y1' 0 Prints ~ans 0 Samples 0 Specifications 0 Change order r;i;:::::-~~ c.l b..r-t.qi'.:?-:l;?e Ed!H, 'S. DESCRIPTION (~..,.. -~ ri-ll"., -p~ --t"? -\ h....l. I \ "-~ -t::.. _ -.. ~ . THESE ARE TRANSMITTED as checked below: ~r approval O For your use 0 As requested 0 Approved as submitted 0 Approved as noted 0 Returned for corrections O Resubmit __ copies for approval 0 Submit __ cop ies for distribution 0 Retum __ corrected prints O For review and comment 0 ---------------------- 0 FOR BIDS DUE ________ l9 ___ 0 PRINTS RETURNED AFTER LOAN TO US REMARKS-------------------------------------~ COPY TO _______________ . ___ ·__ ~ n SIGNED: /'\,l-< ~t' ,, .........,,.. -..... '*"' •11>41:r .... ,,, ;;;:-~ \ Drainage Report For Windsor Pointe Lots 1&2 18 .29 Ac. College Station, Brazos County, Texas Windsor Pointe Apartments Prepared For: Southwest Pointe Limited Partnership c/o Brisben Development Co. Kemper Street Cincinatt~ Ohio Prepared By: Municipal Development Group 203 Holleman Drive East College Station, TX 77840 (409) 693-5359 MDG Job No: 00351-2580 Approved By: North Bardell, P.E. Windsor Pointe Apartments General Location Tue tract to be developed is located on both sides of the future Central Park Lane extension at the intersection of Central Park Lane and Southwest Parkway. Property Description This tract is a total of 19.33 acres and is currently unimproved. This property consists of Lots 1 & 2 and a dedicated RO.W. for Central Park Lane extension. Tue lots are 11.44 acres, 6.85 acres, and 1.04 acres respectively. Lots 1 & 2 of Windsor Point are zoned R-5 and will be utilized for an apartment complex. Primary Drainage Basin Description The tract sheetflows southeast at a slope of approximately 1 %. Tue runoff eventually flows into the Krenek Tap Road drainage system and southwest into an intermittent stream under Krenek Tap Road. This project does not propose significant changes to these patterns since there have been no site specific flooding problems noted in the existing conditions. The tract does not lie in the floodplain or floodway according to FEMA-FIRM Maps 48041C0144C (July 2 , 1992). Lot 1 (South) Drainage Facility Design The project proposes improving 5.61 acres of Lot 1 which will result in an additional 21.54 c.f s. of runoff during the 10-year storm event. A rectangular weir 2 feet wide will be constructed at the outlet to limit the outflow to be less than that of the 10-year storm for all events of greater magnitude . The runoff will then flow under Central Park Lane to curb inlet at the outlet of Lot 2 and then will be piped to the storm system on Krenek Tap Road. Lot 2 (North) Drainage Facility Design The project proposes improving 3.38 acres of Lot 2 which will result in an additional 17.48 c.fs. of runoff during the IO-year storm event . A rectangular weir 1.65 feet wide will be constructed at the outlet to limit the outflow to be less than that of the 10-year storm for all events of greater magnitude . The runoff will then be piped to the storm system on Krenek Tap Road. Off site Drainage Design Drainage will leave this site in a 36" RCP at a 0. 77% grade to tie into the system at Krenek Tap Road. This pipe will run parallel to the proposed future extension of Central Park Lane . At the upstream property line of the existing church the RCP will increase in size to a 42 " RCP at . 77% grade to accommodate all to the road drainage and S. Madison's pre-existing 10 year storm drainage. Then in a parallel easement the RCP will complete its route to Krenek Tap Road. At Krenek Tap Road the drainage structure will change direction and flow to the southeast in a 42 " RCP at 0.57% grade to tie into the existing system (See Offsite Drainage Design Plan & Profile Sheet). The existing system ties into an intermittent stream which is a tributary of Carter's Creek. Conclusions The proposed weirs will limit the runoff to the 10-year pre-development quantities and there is adequate storage capacity on-site to detain the excess runoff in the detention areas. The design depicted is well within the standards of good practice and of the City of College Station Drainage Policy.