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Advanced Hydrotechnical Considerations

Advanced Hydrotechnical Considerations. Overview. Hydrotechnical Review Pier Scour Inspection RPW Inspection Case Study. Hydrotechnical Review. Area Shape Slope Channel Storage Density Vegetation Soil Type Initial Moisture. Hydrotechnical Design Guidelines : Channel Capacity

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Advanced Hydrotechnical Considerations

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  1. Advanced Hydrotechnical Considerations

  2. Overview • Hydrotechnical Review • Pier Scour Inspection • RPW Inspection • Case Study

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

  4. Hydrotechnical Design Guidelines : • Channel Capacity • Historic Highwater Data • Drift, debris • Scars, erosion • Locals, photos • Runoff Potential

  5. A Q Water Surface V = Q A Y Thalweg

  6. Bridge Culvert

  7. Flow Parallel to Pier Flow on Skew to Pier

  8. Dam Aggradation Degradation QsD50 ~ QS

  9. High 1 2 3a Relative Stability 3b 4 Low 5 Relative Stability Low High

  10. Pier Scour Survey

  11. Spurs Guidebank Dyke RPW Inspection Embankment Spurs

  12. 1 2 Typical Rock Riprap Section

  13. 1951 1972 1989 2008

  14. Case Study BF78104 McLeod River near Peers Hwy 32

  15. …Questions?

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