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Table 6. HEC-RAS results
showing flow depths, mean velocities, Froude numbers, and freeboard for corresponding return periods.
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| Return period (yr) |
Discharge (m3/s) |
Flow depth (m) | Inbank flow mean velocity (m/s) | Overbank flow mean velocity (m/s) | Froude number | Freeboard (m) |
| - | 550 | 3.278 | 3.60 | - | 0.68 | 0.522 |
| 10 | 680 | 3.706 | 3.87 | - | 0.69 | 0.094 |
| 50 | 1140 | 4.810 | 4.70 | 0.77 | 0.72 | 2.190 |
| 100 | 1310 | 5.147 | 4.62 | 1.18 | 0.73 | 1.873 |
| 500 | 1600 | 5.677 | 5.31 | 1.17 | 0.75 | 1.323 |
| 1000 | 1720 | 5.883 | 5.45 | 1.25 | 0.75 | 1.117 |
| 5000 | 2140 | 6.554 | 5.90 | 1.49 | 0.77 | 0.450 |
| 10000 | 2290 | 6.779 | 6.04 | 1.56 | 0.77 | 0.221 |