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Home My WebLink AboutDrainage Study Revision No. 2Creek Meadows -Section 4, Phase Two Drainage Study -Revision No. 2 TABLE#3 STORM DRAINAGE SUMMARY Pipe Sizf 10-YR US Node DS Node Diameter Velocity Capacity RunoffQ USHGL lD lD (in) (fos) (cfs) (cfs) (ft) RME Consulting Engineers June 16, 2008 US Top of Curb Di ff Elev. (ft) (ft) SYSTEM "A" -SECTION 4, PHASE ONE & TWO Al OUTl 2-36 6.00 122.73 84.80 310.43 312.56 2.13 A2 Al 2-36 S.69 126.7S 80.43 310.9S 313.82 2.87 A3 A2 24 4.3S IS .S2 10.09 311.13 314.58 3.4S A4 A3 18 6.86 11.38 7.44 311.67 314.S8 2.91 JI A2 36 10.71 67.22 71.19 312.68 3 IS.18 2.50 J2 JI 36 10.71 67.43 71.19 314.20 316.61 2.41 AS J2 36 10.07 6S .13 71.19 3 IS.18 317.66 2.48 A6 AS 18 2.47 10.00 4.37 31S.23 317.66 2.43 J3 AS 36 8.99 72.79 63.56 3JS.87 318.79 2.92 J4 J3 36 9.29 72.23 63.S6 316.4S 319.63 3.18 A7 J4 24 6.39 21.14 13.07 316.88 319.79 2.91 A8 A7 24 S.08 17.33 9.43 316.96 319.79 2.83 A9 J4 36 9.71 71.76 S4.9S 317.16 320.7S 3.S9 AlO A9 36 10.61 71.78 S3.82 317.99 322.08 4.09 SYSTEM "B" -SECTION 4, PHASE TWO Bl OUT2 36 8.01 S0.66 40.96 313.53 317.30 3.77 B2 Bl 18 7.19 11.46 9.20 314.36 317.30 2.94 JI Bl 30 7.92 34.38 31.27 314.77 317.73 2.96 BS JI 24 7.59 23.76 12.10 31S.S2 319.7S 4.23 B3 JI 24 7.68 21 .23 19.42 31S.43 317.2S 1.82 B4 83 18 6.12 10.S8 S.82 3 lS.54 317.2S 1.71 S'fSTEM "C" -SECTION 4, PHASE TWO Cl OUT3 30 6.81 31.42 21 .02 312.7S 317.20 4.4S C2 Cl 30 6.78 31.77 19.9S 313.03 317.20 4.17 C3 C2 30 6.68 31.42 18.3S 313.10 317.20 4.10 SYSTEM "D" -SECTION 4, PHASE TWO DI OUT4 30 6.1 1 38.49 2S.48 310.SO 3 IS.17 4.67 02 DI 30 6.3S 38.63 22.99 310.S4 31S.17 4.63 D3 02 30 S.17 39.7S 19.2S 310.S6 31S.l 7 4.61 SYSTEM "A" -SECTION lA, PHASE ONE & TWO A28 J8 2-42 8.S6 148.46 116.12 31S.9S 321.72 S.77 18 19 2-48 8.00 199.40 116.12 313.90 319.18 S.28 19 01 2-48 8.16 194.09 124.82 313.63 3 l7.8S 4.22 A31 19 30 8.0S 38.42 21.33 314.92 318.SO 3.S8 A32 A31 24 7.98 24.Sl 13.S3 3 IS.2S 318.50 3.2S A30 A31 18 6.88 12.03 6.32 31S.72 318.50 2.78 Stonn Drainage System Not€s: l. All stonn sewer system outfalls are specified with velocity dissipaters at the headwall with addition rock rip-rap ension control; 2. The conveyance elements shown for System "A"-Section IA, Phase One & Two are only new items that have been added. Hydraulic impacts upstream are non-existent or negligible; 3. Pipe Run 34 (A28 to B) is modeled as 2-42" pipes which is the hydraulic equivalent of 1-48" and 1-36" pipe as illust·ated on the Construction Drawings; 4. Node A32 and its corresponding conveyance element was fabricated to model anticipated runoff that will be received frc•m future upstream developments; 0<6· I~ i4/18/~ 202-0316 Drainage Report-Rev 2 Page -l l JD:~ ~