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Hydrotechnical Design Parameters Channel Hydraulics Culvert Hydraulics Culvert Sizing

Hydrotechnical Design Parameters Channel Hydraulics Culvert Hydraulics Culvert Sizing. Hydrotechnical Design Parameters. Area. Shape. Slope. Storage. Density. Vegetation. Soil Type. Initial Moisture. Gauges >30 Years (212). Options - Statistics. Options - Model.

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Hydrotechnical Design Parameters Channel Hydraulics Culvert Hydraulics Culvert Sizing

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  1. Hydrotechnical Design Parameters • Channel Hydraulics • Culvert Hydraulics • Culvert Sizing

  2. Hydrotechnical Design Parameters

  3. Area • Shape • Slope • Storage • Density • Vegetation • Soil Type • Initial Moisture

  4. Gauges >30 Years (212) Options - Statistics

  5. Options - Model

  6. Hydrotechnical Design Guidelines

  7. Channel Capacity

  8. Historic Highwater - AT

  9. Basin Runoff Potential

  10. Channel Hydraulics

  11. Normal Flow V = 14 Y0.67S0.4 Y S 1

  12. T h Q = AV B

  13. Other Flow Profile Cases 3. GVF 2. RVF 1. Normal S 1

  14. E = Y + V2/2g • EGL flows downhill • Head loss at RVF EGL S 1

  15. Culvert Hydraulics

  16. Bridge Culvert

  17. Barrel – GVF + U/S Channel - GVF D/S Channel - Normal Trans - Steep Trans - Adverse RVF - Expansion RVF - Contraction

  18. Culvert Sizing

  19. Sizing: • Complex – need model • Start :– Rise = burial + Y + headloss • Range - sizes, shapes, barrels, profiles • Parameters – V, freeboard/ponding • Practical – drift/ice, future lining

  20. Considerations: • Fish Passage • Blockage - Drift, Icing • End Protection Works (V) • Ponding: • Upstream Flooding • Uplift Failure • Embankment Stability • Road Overtopping

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