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SDP200600062 Calculations 2007-02-14
Table of Content: Hydraflow Hydrographs by Intelisolve 2 - Year COLbaptistO6.gpw Wednesday, Feb 14 2007, 9:35 AM HydrographReports .............................................................................. ............................... 1 Hydrograph No. 1, Rational, DA1 ........................................................ ............................... 1 FAATc Worksheet ......................................................................... ............................... 2 Hydrograph No. 2, Rational, DA2 ........................................................ ............................... 3 FAATc Worksheet ......................................................................... ............................... 4 Hydrograph No. 3, Rational, DA3 ........................................................ ............................... 5 FAATc Worksheet ......................................................................... ............................... 6 Hydrograph No. 4, Reservoir, BMP Pond 1 ........................................ ............................... 7 PondReport ................................................................................... ............................... 8 Hydrograph No. 5, Reservoir, BMP Pond 2 ........................................ ............................... 9 PondReport ................................................................................. ............................... 10 Hydrograph No. 6, Combine, Total to Ex Culvert .............................. ............................... 11 P - 2y2 . OlorJ\jc,- C44G5 Hydrograph Plot - Hydraflow Hydrographs by Intelisolve Hyd. No. 1 Time interval DA1 Runoff coeff. Hydrograph type Rational Storm frequency 2 yrs Drainage area 1.1 ac Intensity 3.852 in /hr OF Curve Albmrle.IDF Wednesday, Feb 14 2007, 9:35 AM Peak discharge 1.62 cfs Time interval 1 min Runoff coeff.0.38 -- Tc by FAA 11 min Asc /Rec limb fact 1/1.67 Hydrograph Volume = 1,431 cuft DA1 Q (cfs) Hyd. No. 1 -- 2 Yr 2.00 I 1.00 Hyd No. 1 5 10 15 Q (cfs) 2.00 20 25 1.00 0.00 30 Time (min) FAA Formula Tc Worksheet Tc = 1.8(1.1 - C) x Flow length ^0.5 / Watercourse slope ^0.333 Hyd. No. 1 DA1 Description Flow length (ft) = 317.00 Watercourse slope ( %) = 9.00 Runoff coefficient (C) = 0.38 Hydraflow Hydrographs by Intelisolve Time of Conc. (min) = 11 Hydrograph Plot Hydraflow Hydrographs by Intelisolve Hyd. No. 2 DA2 Hydrograph type Rational Storm frequency 2 yrs Drainage area 1.0 ac Intensity 5.794 in /hr OF Curve Albmrle.IDF Wednesday, Feb 14 2007, 9:35 AM Peak discharge = 4.46 cfs Time interval = 1 min Runoff coeff. = 0.77 Tc by FAA = 4 min Asc /Rec limb fact = 1/1.67 Hydrograph Volume = 1,429 cuft DA2 Q (cfs) Hyd. No. 2 -- 2 Yr Q (cfs) 5.00 ---- 5.00 I I 4.00 3.00 r 1e 1.00 0.00 0 41 10 4.00 3.00 2.00 1.00 0.00 15 Time (min) Hyd No. 2 FAA Formula Tc v/orksheet Tc = 1.8(1.1 - C) x Flow length ^0.5 / Watercourse slope ^0.333 Hyd. No. 2 DA2 Description Flow length (ft) = 222.00 Watercourse slope ( %) = 9.00 Runoff coefficient (C) = 0.77 Hydraflow Hydrographs by Intelisolve Time of Conc. (min) = 4 Hydrograph Plot Hydraflow Hydrographs by Intelisolve Wednesday, Feb 14 2007, 9:35 AM Hyd. No. 3 DA3 Hydrograph type Rational Peak discharge 1.39 cfs Storm frequency 2 yrs Time interval 1 min Drainage area 0.9 ac Runoff coeff.0.4 Intensity 3.852 in /hr Tc by FAA 11 min OF Curve Albmrle.IDF Asc /Rec limb fact 1/1.67 Hydrograph Volume = 1,222 cuft Q (cfs) 2.00 - 1.00 DA3 Hyd. No. 3 -- 2 Yr 5 10 15 20 25 Hyd No. 3 Q (cfs) 2.00 1.00 0.00 30 Time (min) FAA Formula Tc worksheet Tc = 1.8(1.1 - C) x Flow length ^0.5 / Watercourse slope "0.333 Hyd. No. 3 DA3 Description Flow length (ft) = 270.00 Watercourse slope ( %) = 6.00 Runoff coefficient (C) = 0.40 Hydraflow Hydrographs by Intelisolve Time of Conc. (min) = 11 Hydrograph Plot Hydraflow Hydrographs by Intelisolve Hyd. No. 4 BMP Pond 1 Hydrograph type Reservoir Storm frequency 2 yrs Inflow hyd. No.1 Reservoir name BMP #1 BMP Pond 9 Hyd. No. 4 -- 2 Yr 0.02 cfs 1 min 485.48 ft 1,387 cuft Storage Indication method used. Q (cfs) 2.00 1.00 0.00 0 3 Hyd No. 4 Wednesday, Feb 14 2007, 9:35 AM Peak discharge Time interval Max. Elevation Max. Storage Hydrograph Volume = 1,407 cuft 5 8 11 13 16 19 21 24 27 Hyd No. 1 Q (cfs) 2.00 1.00 0.00 29 Time (hrs) Pond Report Hydraflow Hydrographs by Intelisolve Wednesday, Feb 14 2007, 9:35 AM Pond No. 1 BMP #1 Pond Data Bottom LxW 47.0 x 27.0 ft Side slope 2.0:1 Bottom elev.484.50 ft Depth 1.50 ft Stage / Storage Table Stage (ft)Elevation (ft)Contour area (sqft)Incr. Storage (cult)Total storage (cuft) 0.00 484.50 1,269 0 0 0.08 484.58 1,291 96 96 0.15 484.65 1,314 98 194 0.23 484.73 1,336 99 293 0.30 484.80 1,359 101 394 0.38 484.88 1,382 103 497 0.45 484.95 1,405 105 602 0.53 485.03 1,429 106 708 0.60 485.10 1,452 108 816 0.68 485.18 1,476 110 926 0.75 485.25 1,500 112 1,037 0.82 485.33 1,524 113 1,151 0.90 485.40 1,548 115 1,266 0.97 485.48 1,573 117 1,383 1.05 485.55 1,597 119 1,502 1.13 485.63 1,622 121 1,623 1.20 485.70 1,647 123 1,745 1.28 485.78 1,672 124 1,870 1.35 485.85 1,698 126 1,996 1.43 485.93 1,723 128 2,124 1.50 486.00 1,749 130 2,255 Culvert / Orifice Structures Weir Structures A]B]C]D]A] [B]C]D] Rise (in)0.00 0.00 0.00 0.00 Crest Len (ft)13.00 0.00 0.00 0.00 Span (in)0.00 0.00 0.00 0.00 Crest El. (ft)486.50 0.00 0.00 0.00 No. Barrels 0 0 0 0 Weir Coeff.2.60 0.00 0.00 0.00 Invert El. (ft)0.00 0.00 0.00 0.00 Weir Type Broad - -- Length (ft)0.00 0.00 0.00 0.00 Multi -Stage No No No No Slope ( %)0.00 0.00 0.00 0.00 N -Value 000 000 000 000 Orif. Coeff.0.00 0.00 0.00 0.00 Multi -Stage n/a No No No ExlFiItration = 0.500 in /hr (Wet area) Tailwater Elev. = 0.00 ft Stage (ft) 2.00 1.80 1.60 1.40 1.20 1.00 0.80 0.60 0.40 0.20 0.00 0.00 Stage / Discharge Note Culvert/Orifice outflows have been analyzed under inlet and outlet control Stage (ft) 2.00 1.80 1.60 1.40 1.20 1.00 0.80 0.60 0.40 0.20 0.00 0.70 0.80 0.90 1.00 Discharge (cfs) 0.10 0.20 0.30 0.40 0.50 0.60 Total Q Hydrograph Plot Hydraflow Hydrographs by Intelisolve Wednesday, Feb 14 2007, 9:35 AM Hyd. No. 5 BMP Pond 2 Hydrograph type Reservoir Peak discharge 0.01 cfs Storm frequency 2 yrs Time interval 1 min Inflow hyd. No.2 Max. Elevation 495.22 ft Reservoir name BMP Pond 2 Max. Storage 1,332 cuft Storage Indication method used. Hydrograph Volume = 1,330 cuft Q (cfs) 5.00 4.00 3.00 2.00 1.00 W BMP Pond 2 Hyd. No. 5 -- 2 Yr 4 7 11 14 18 21 25 28 32 Hyd No. 5 Hyd No. 2 Q (cfs) 5.00 4.00 3.00 2.00 1.00 0.00 35 Time (hrs) Pond Report Hydraflow Hydrographs by Intelisolve Wednesday, Feb 14 2007, 9:35 AM Pond No. 2 BMP Pond 2 Pond Data Bottom LxW 42.0 x 22.0 ft Side slope = 2.0:1 Bottom elev.494.00 ft Depth 2.00 ft Stage / Storage Table Stage (ft)Elevation (ft)Contour area (sqft)Incr. Storage (cuft)Total storage (cuft) 0.00 494.00 924 0 0 0.10 494.10 950 94 94 0.20 494.20 976 96 190 0.30 494.30 1,002 99 289 0.40 494.40 1,029 102 390 0.50 494.50 1,056 104 495 0.60 494.60 1,083 107 602 0.70 494.70 1,111 110 711 0.80 494.80 1,139 113 824 0.90 494.90 1,167 115 939 1.00 495.00 1,196 118 1,057 1.10 495.10 1,225 121 1,178 1.20 495.20 1,254 124 1,302 1.30 495.30 1,284 127 1,429 1.40 495.40 1,314 130 1,559 1.50 495.50 1,344 133 1,692 1.60 495.60 1,375 136 1,828 1.70 495.70 1,405 139 1,967 1.80 495.80 1,437 142 2,109 1.90 495.90 1,468 145 2,254 2.00 496.00 1,500 148 2,403 Culvert / Orifice Structures Weir Structures A] [B]C]D]A] [B]C]D] Rise (in)0.00 0.00 0.00 0.00 Crest Len (ft)5.00 0.00 0.00 0.00 Span (in)0.00 0.00 0.00 0.00 Crest El. (ft)495.50 0.00 0.00 0.00 No. Barrels 0 0 0 0 Weir Coeff.2.60 0.00 0.00 0.00 Invert El. (ft)0.00 0.00 0.00 0.00 Weir Type Broad - -- Length (ft)0.00 0.00 0.00 0.00 Multistage No No No No Slope ( %)0.00 0.00 0.00 0.00 N -Value 000 .000 000 000 Orif. Coeff.0.00 0.00 0.00 0.00 Multistage n/a No No No Exfiltration = 0.500 in /hr (Wet area)Tailwater Elev. = 0.00 ft Stage (ft) 2.00 1.80 1.60 1.40 1.20 1.00 0.80 0.60 0.40 0.20 0.00 0.00 Note Culvert/Orifice outflows have been analyzed under inlet and outlet control Stage / Discharge Stage (ft) 2.00 1.80 1.60 1.40 1.20 1.00 0.80 0.60 0.40 0.20 0.00 0.50 0.60 0.70 0.80 0.90 1.00 Discharge (cfs) 1C 0.10 0.20 0.30 0.40 Total 0 11 Hydrograph Plot Hydraflow Hydrographs by Intelisolve Wednesday, Feb 14 2007, 9:35 AM Hyd. No. 6 Total to Ex Culvert Hydrograph type = Combine Peak discharge = 0.03 cfs Storm frequency = 2 yrs Time interval = 1 min Inflow hyds. = 4, 5 Hydrograph Volume = 2,737 cuft Q (Cfs) 0.10 NE1• i 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 r) r)n Total to Ex Culvert Hyd. No. 6 -- 2 Yr 0 4 7 Hyd No. 6 11 14 18 21 25 28 32 Hyd No. 4 — Hyd No. 5 Q (Cfs) 0.10 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0.00 35 Time (hrs)