| Inflow Area = | 86,443 sf, | 27.15% Impervious, | Inflow Depth = 0.87" for 2-Year event |
|---|---|---|---|
| Inflow = | 1.53 cfs @ | 12.13 hrs, | 6,261 cf |
| Outflow = | 0.10 cfs @ | 13.87 hrs, | 2,699 cf, Atten= 94%, Lag= 104.6 min |
| Discarded = | 0.00 cfs @ | 0.00 hrs, | 0 cf |
| Primary = | 0.10 cfs @ | 13.87 hrs, | 2,699 cf |
| Routed to Link 185L : POA | |||
Routing by Stor-Ind method, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs Starting Elev= 93.00' Surf.Area= 4,067 sf Storage= 6,668 cf Peak Elev= 93.98' @ 13.87 hrs Surf.Area= 4,994 sf Storage= 11,122 cf (4,455 cf above start)
Plug-Flow detention time = (not calculated: initial storage exceeds outflow) Center-of-Mass det. time = 416.3 min (1,177.6 - 761.4)
| Volume | Invert | Avail.Storage | Storage Description | |
|---|---|---|---|---|
| #1 | 91.00' | 13,818 cf | Custom Stage Data (Prismatic) Listed below (Recalc) | |
| Elevation (feet) | Surf.Area (sq-ft) | Inc.Store (cubic-feet) | Cum.Store (cubic-feet) | |
| 91.00 | 2,628 | 0 | 0 | |
| 92.00 | 3,320 | 2,974 | 2,974 | |
| 93.00 | 4,067 | 3,694 | 6,668 | |
| 94.00 | 5,010 | 4,539 | 11,206 | |
| 94.50 | 5,438 | 2,612 | 13,818 | |
| Device | Routing | Invert | Outlet Devices |
|---|---|---|---|
| #1 | Primary | 93.80' | 6.0" Round Culvert to Subsurface Basin L= 35.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 92.00' / 93.80' S= -0.0514'' Cc= 0.900 n= 0.012 Corrugated PP, smooth interior, Flow Area= 0.20 sf |
| #2 | Device 1 | 93.00' | 4.0' long Sharp-Crested Rectangular Weir 2 End Contraction(s) |
| #3 | Discarded | 91.00' | 1.050 in/hr Exfiltration X 0.00 over Surface area |
Discarded OutFlow Max=0.00 cfs @ 0.00 hrs HW=93.00' (Free Discharge) 3=Exfiltration (Controls 0.00 cfs)
Primary OutFlow Max=0.10 cfs @ 13.87 hrs HW=93.98' (Free Discharge) 1=Culvert to Subsurface Basin (Inlet Controls 0.10 cfs @ 1.46 fps) 2=Sharp-Crested Rectangular Weir (Passes 0.10 cfs of 7.28 cfs potential flow)