Difference between revisions of "Watershed runoff characteristics"
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Revision as of 01:16, 29 March 2013
Watershed runoff characteristics
Link to this table
| Given: | |||
| Area = | 50 | ac. | total watershed area in acres draining to pond |
|---|---|---|---|
| IC = | 20 | ac. | new impervious area in acres (40% |
| Event | Pre-development | Post-development | Unit |
| Q1-yr 24-hr | 6.7 | 53.5 | cfs |
| Q2-yr 24-hr | 11.6 | 69.0 | cfs |
| Q10-yr 24-hr | 36.7 | 131.9 | cfs |
| Q100-yr 24-hr | 81.8 | 222.0 | cfs |
| V1-yr 24-hr | 0.3 | 3.9 | ac-ft |
| V2-yr 24-hr | 0.6 | 4.9 | ac-ft |
| V10-yr 24-hr | 3.1 | 8.9 | ac-ft |
| V100-yr 24-hr | 7.5 | 14.7 | ac-ft |