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WATER CONTROL STRUCTURES

WATER CONTROL STRUCTURES. Erosion can’t be always be controlled with vegetation and channel shape Reduce the channel slope between structures. Construct the structures to control the erosive energy at the drop. original channel slope. Drop Structures. new channel slope. DROP STRUCTURE.

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WATER CONTROL STRUCTURES

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  1. WATER CONTROL STRUCTURES • Erosion can’t be always be controlled with vegetation and channel shape • Reduce the channel slope between structures. • Construct the structures to control the erosive energy at the drop. structures.ppt

  2. original channel slope Drop Structures new channel slope structures.ppt

  3. DROP STRUCTURE structures.ppt

  4. Straight Drop Spillway structures.ppt

  5. CHUTE STRUCTURE structures.ppt

  6. Chute Structure structures.ppt

  7. PIPE STRUCTURE structures.ppt

  8. Chute Spillway Pipe Spillway Drop Spillway Pipe or Drop Spillway Guide to Control Structure Selection TOTAL DROP (FEET) 10 100 0 FLOW RATE (CFS) structures.ppt

  9. H 4H minimum L Weir Flow structures.ppt

  10. WEIR FLOW EQUATION structures.ppt

  11. Drop Inlet Pipe Spillway h D L structures.ppt

  12. Hood Inlet Pipe Spillway h structures.ppt

  13. PIPE FLOW EQUATION structures.ppt

  14. Wood Drop Structure structures.ppt

  15. Gabion Drop Structure structures.ppt

  16. Chute Spillway structures.ppt

  17. Chute Drop Structure structures.ppt

  18. Propped Outlet and Plunge Pool Energy Dissipation structures.ppt

  19. Apron Type Stilling BasinEnergy Dissipation structures.ppt

  20. Impact Basin Energy Dissipation structures.ppt

  21. Weir Flow Calculations • Given Weir Length = 12 feet • Weir Head = 2 feet • Find the Flow Capacity of this structure. structures.ppt

  22. Weir Flow Calculations • Given Required Flow Capacity = 120 CFS • Weir Length = 12 feet • What Weir Head would be required? structures.ppt

  23. Weir Flow Calculations • Given: Weir Capacity = 80 CFS • Weir Head = 1.5 feet • What Weir Length is required? structures.ppt

  24. Pipe Flow Calculations • Given a smooth steel pipe with a diameter of 12 inches • Available Pipe Head of 15 feet • What is the capacity of this structure? structures.ppt

  25. Pipe Flow Calculations • Given a required flow rate of 40 CFS • Given a corrugated metal pipe with a diameter of 21 inches. • What pipe head would be required? structures.ppt

  26. Pipe Flow Calculations • Given a required flow rate of 30 CFS • Available pipe head = 20 feet • What diameter corrugated metal pipe would be required? • What diameter smooth pipe would be required? structures.ppt

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