This calculator allows you to simulate the effects that installing a rain garden, a type of green infrastructure, could have on stormwater runoff from your ... |
29 мар. 2024 г. · Enter the total runoff area (ft^2) and the total inches of rainfall (in) into the Runoff Volume Calculator. The calculator will evaluate and display the Runoff ... |
Use this calculator to determine how much runoff your home produces based on its square footage. If you know it, add the area of your driveway as well. |
For every 100 square feet of roof surface, one inch produces 62 gallons of water · Area of your roof x .62 = volume of water ... |
EPA's National Stormwater Calculator (SWC) is a web-based application tool that estimates the annual amount of rainwater and frequency of runoff from a specific ... |
The CivilAxtarish Rainfall & Runoff Calculator spreadsheet allows the user to estimate runoff using the following methodologies. |
Rainwater Runoff Formulas. Q = (C x I x A )/96.23. Where,. Q is the storm-water Run-off in Gallons Per Minute (GPM). C is the Run-off coefficient. |
The most common method is the Wallingford Procedure which is detailed below: QP = 2.76 x Ap xi Where: QP = Peak discharge (litres/sec) Ap = Impermeable Area ( ... |
Peak discharge, runoff depth, initial abstraction, unit peak discharge, and pond/swamp factor are computed as follows: |
This software application tool estimates the annual amount of rainwater and frequency of runoff at a specific site using green infrastructure as low-impact ... |
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