48 001 STORMWATER REPORT 20240823 Sealed

9 Pond Report Hydraflow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2024 Wednesday, 06 / 5 / 2024 Pond No. 1 - CHAMBERS Pond Data UG Chambers - Invert elev. = 100.00 ft , Rise x Span = 1.15 x 2.30 ft , Barrel Len = 7.12 ft , No. Barrels = 24 , Slope = 0.00% , Headers = No Encasement - Invert elev. = 99.50 ft , Width = 3.33 ft, Height = 2.33 ft , Voids = 40.00% Stage / Storage Table Stage (ft) 0.00 0.23 0.47 0.70 0.93 1.17 1.40 1.63 1.86 2.10 2.33 Elevation (ft) Contour area (sqft) Incr. Storage (cuft) Total storage (cuft) n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 0 53 53 100 106 101 93 78 54 53 53 0 53 106 206 312 413 506 584 637 690 743 99.50 99.73 99.97 100.20 100.43 100.67 100.90 101.13 101.36 101.60 101.83 Culvert / Orifice Structures Rise (in) Span (in) No. Barrels Invert El. (ft) Length (ft) Slope (%) N-Value Orifice Coeff. Multi-Stage Weir Structures [A] [B] [C] [PrfRsr] = 5.00 = 5.00 = 1 = 100.00 = 0.00 = 0.00 = .013 = 0.60 = n/a 2.00 9.00 1 100.75 0.00 0.00 .013 0.60 No 2.00 9.00 1 101.16 0.00 0.00 .013 0.60 No 0.00 0.00 0 0.00 0.00 n/a n/a 0.60 No [A] [B] [C] [D] Crest Len (ft) Crest El. (ft) Weir Coeff. Weir Type Multi-Stage = 0.00 = 0.00 = 3.33 = --= No 0.00 0.00 3.33 --No 0.00 0.00 3.33 --No 0.00 0.00 3.33 --No Exfil.(in/hr) TW Elev. (ft) = 0.000 (by Wet area) = 0.00 Note: Culvert/Orifice outflows are analyzed under inlet (ic) and outlet (oc) control. Weir risers checked for orifice conditions (ic) and submergence (s). Stage / Discharge Stage (ft) Elev (ft) 3.00 102.50 2.00 101.50 1.00 100.50 0.00 99.50 0.00 0.50 Total Q 1.00 1.50 2.00 Discharge (cfs)