2025 01 24 Drainage Statement

STORM SEWER COMPUTATIONS RATIONAL METHOD - (Q=CIA) Date: 01-24-25, Revised: 25 YR. STORM Inlet #1-3 MH #1-2 0.11 0.99 0.10 0.10 6.0 5.60 0.59 50 1% 12" HDPE 3.87 4.93 0.17 GOOD MH #1-2 MH #1-1 0 0.99 0.00 0.10 6.0 5.60 0.59 34 1% 12" HDPE 3.87 4.93 0.11 GOOD Inlet #1-4 MH #1-1 0.051 0.99 0.05 0.16 6.0 5.60 0.87 55 1% 12" HDPE 3.87 4.93 0.19 GOOD MH #1-1 EX. INLET 0 0.99 0.00 0.16 6.0 5.60 0.87 25 1% 12" HDPE 3.87 4.93 0.08 GOOD Pipe Travel Time(min) I-Rainfall Int. (in./hr) By: LCD PIPE SEGMENT FROM TO A-Incremental C-Runoff Coef. AxC-Incremental AxC Cumulative Tc (MIN.) Velocity (Design) (fps) Qp-Peak Runoff (cfs) Pipe/Box Length (FT.) Slope (%) Pipe/Box Size (IN.) Capacity (FULL) (cfs)