Difference between revisions of "Watershed runoff characteristics"
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<th>20</th> | <th>20</th> | ||
<th>ac.</th> | <th>ac.</th> | ||
| − | <th>new impervious area in acres (40%</th> | + | <th>new impervious area in acres (40%)</th> |
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| − | < | + | <th colspan=4></th> |
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| + | <th colspan="4">Watershed peak discharge and runoff volume:</th> | ||
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<th>Event</th> | <th>Event</th> | ||
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| − | [[ | + | [[Category:Level 3 - General information, reference, tables, images, and archives/Tables/Hydrology and geology]] |
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Latest revision as of 12:19, 7 August 2022
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%) |
| Watershed peak discharge and runoff volume: | |||
| 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 |
This page was last edited on 7 August 2022, at 12:19.