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HomeMy WebLinkAboutSW4220601_Supplement-EZ Form_20230324LOW DENSITY DESIGN REQUIREMENTS FOR LOW DENSITY PROJECTS FROM 02H .1003 1 Is project below density thresholds set forth in the applicable stormwater rule? Yes 2 Does project maximize dispersed flow and minimize channelization of flow? Yes 3 Has the use of piping been minimized per .1003(2)(c)? No 4 Side slopes of the vegetated conveyances (H:V) 3 sf 5 Maximum velocity in the vegetated conveyances during the 10-year storm? 4.98 6 Are curb outlet swales proposed? No 7 Maximum longitudinal slope of curb outlet swale(s) (%) No 8 Bottom width of curb outlet swale(s) (feet) No 9 Maximum side slope of curb outlet swale(s) (H:V) No 10 Minimum length of curb outlet swale(s) (feet) No 11 Are treatment swales used instead of curb outlet swales? No 12 Is stormwater released at the edge of the setback as dispersed flow? Yes 13 Have stormwater outlets been designed to prevent downslope erosion? Yes 14 JAre variations to rule .1003 proposed? No ADDITIONAL INFORMATION 15 1 Please use this space to provide any additional information about this low density project: Line 4 is not formatted properly. The side slopes are 3:1 Swale # Drainage Area ac BUA (ac) Pervious area ac C Q (cfs) Slope (°/,) V,i„V, (fps) V,-I (fps) Flow depth (ft) 1 0.35 0.16 0.19 0.50 1.20 3.00 5.00 1.41 0.30 2 0.19 0.05 0.14 0.50 0.65 2.76 5.00 1.05 0.23 3 5.02 0.85 4.17 0.50 13.73 4.26 5.00 2.88 0.97 4 0.61 0.10 0.51 0.50 2.09 4.27 5.00 1.44 0.44 5 0.37 0.11 0.26 0.50 1.27 4.64 5.00 1.24 0.34 6 1.42 0.07 1.35 0.50 4.86 4.60 5.00 2.06 0.61 7 5.84 0.00 5.84 0.50 15.97 4.18 5.00 4.53 0.80 8 2.70 1.12 1.58 0.50 7.38 4.21 5.00 3.42 0.58 9 3.57 0.07 3.50 0.50 8.15 5.00 5.00 4.98 0.54 10 7.84 1.46 6.38 0.45 19.73 5.00 5.00 3.60 1.06 11 0.93 0.24 0.69 0.50 3.18 2.20 5.00 1.73 0.52 12 3.41 0.19 3.22 0.50 8.85 3.80 5.00 3.46 0.65 13 0.36 0.06 0.30 0.50 1.23 1.77 5.00 1.07 0.37 14 1.56 0.00 1.56 0.50 4.05 4.19 5.00 2.72 0.45 15 2.82 1.04 1.78 0.50 7.32 4.76 5.00 3.66 0.55 16 1.68 0.65 1.03 0.50 5.75 2.34 5.00 2.24 0.65 17 4.36 0.39 3.97 0.45 13.42 5.00 5.00 3.13 0.91 18 19 20 21 22 23 24 25 26 27 28 29 30 Swale # Drainage Area (ac) BUA (ac) Pervious re area (acRS-1 C Q (cfs) Slope M Va„aw (fps) Vactual (fps) Flow depth (ft) 0.15 0.06 0.09 0.60 0.62 5.08 5.00 1.41 0.17 RS-2 0.19 0.12 0.07 0.60 0.78 3.65 5.00 1.31 0.22 RS-3 0.12 0.06 0.06 0.60 0.50 4.17 5.00 1.16 0.17 RS-4 0.11 0.05 0.06 0.60 0.45 2.14 5.00 0.79 0.22 RS-5 0.11 0.05 0.06 0.60 0.45 2.63 5.00 0.88 0.20 RS-6 0.07 0.03 0.04 0.60 0.29 4.68 5.00 0.97 0.13 RS-7 0.14 0.06 0.08 0.60 0.58 4.05 5.00 1.22 0.19 RS-8 0.20 0.07 0.13 0.60 0.83 3.26 5.00 1.27 0.24 RS-9 0.43 0.19 0.24 0.60 1.78 4.32 5.00 2.01 0.30 RS-10 0.12 0.05 0.07 0.60 0.50 2.73 5.00 0.93 0.20 RS-11 0.24 0.11 0.13 0.60 0.99 7.09 5.00 2.04 0.19 RS-12 0.26 0.09 0.17 0.60 1.07 7.09 5.00 2.11 0.20 RS-13 0.09 0.03 0.06 0.60 0.37 3.08 5.00 0.87 0.17 RS-14 2.54 1.77 0.77 0.60 10.49 3.18 5.00 3.32 0.74 RS-15 0.32 0.19 0.13 0.60 1.32 4.22 5.00 1.76 0.27 RS-16 0.43 0.24 0.19 0.60 1.78 3.14 5.00 1.69 0.35 RS-17 0.42 0.20 0.22 0.60 1.73 2.64 5.00 1.52 0.37 RS-18 0.86 0.33 0.53 0.60 3.55 4.05 5.00 2.54 0.43 RS-19 1.21 0.52 0.69 0.60 4.99 3.82 5.00 2.80 0.51 RS-20 0.15 0.06 0.09 0.60 0.62 2.76 5.00 1.03 0.23 RS-21 0.19 0.10 0.09 0.60 0.78 3.33 5.00 1.25 0.23 RS-22 0.32 0.13 0.19 0.60 1.32 3.04 5.00 1.47 0.31 RS-23 0.33 0.12 0.21 0.60 1.36 3.60 5.00 1.63 0.29 RS-24 0.48 0.20 0.28 0.60 1.98 4.26 5.00 2.08 0.32 RS-25 0.26 0.14 0.12 0.60 1.07 2.88 5.00 1.31 0.28 RS-26 0.78 0.37 0.41 0.60 3.22 1.84 5.00 1.57 0.56 RS-27 0.38 0.18 0.20 0.60 1.57 1.93 5.00 1.23 0.40 RS-28 0.18 0.05 0.13 0.60 0.74 3.23 5.00 1.20 0.23 RS-29 0.77 0.33 0.44 0.60 3.18 3.66 5.00 2.30 0.42 RS-30 0.82 0.34 0.48 0.60 3.38 3.02 5.00 2.11 0.47 RS-31 1.46 0.51 0.95 0.60 6.03 2.65 5.00 2.44 0.63 RS-32 0.83 0.34 0.49 0.60 3.43 4.26 5.00 2.58 0.41 RS-33 0.58 0.24 0.34 0.60 2.39 2.43 5.00 1.64 0.44 RS-34 0.65 0.37 0.28 0.60 2.68 2.41 5.00 1.71 0.46 RS-35 0.43 0.16 0.27 0.60 1.78 4.39 5.00 2.02 0.30