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Hydrotechnical Considerations

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  1. Hydrotechnical Considerations

  2. Overview • Hydrotechnical Design • River Issues • Lateral Stability • Vertical Stability • Blockage - ice, drift • River Protection Works

  3. Hydrotechnical Design

  4. Sun Rain Hail Snowmelt Snow Streams Mountains Lakes Evaporation Rivers Groundwater Oceans The Hydrologic Cycle

  5. Area • Shape • Slope • Storage • Density • Vegetation • Soil Type • Initial Moisture Drainage Basin Parameters

  6. Runoff Response Variation Across Alberta

  7. Hydrotechnical Design Guidelines • Channel Capacity • channel size result of long-term runoff • channel size affects routing of runoff • typical channel • activate overbank storage • Historic Highwater Data • HWM – AIT, AENV, WSC, site, airphoto, news • Location, description • Runoff Potential • Limit on supply of runoff • Unit discharge

  8. V = Q A A Q Hydraulic Definitions Water Surface Y Thalweg

  9. Bridge Culvert Flow Constriction - Stream Crossing

  10. Bank Flow Flowlines - Before Constriction

  11. Q=V*A Q=V*A Q= V*A Flowlines - After Constriction

  12. Energy Grade Line Water Surface Flow Profile - After Constriction

  13. File 00278 - Battle River

  14. File 00278 - Battle River

  15. File 00278 - Battle River

  16. File 75194 - Simonette River

  17. File 75194 - Simonette River

  18. File 75194 - Simonette River

  19. File 75194 - Simonette River

  20. File 75194 - Simonette River

  21. File 75194 - Simonette River

  22. File 75194 - Simonette River

  23. File 75194 - Simonette River

  24. File 07107 - Iron Creek

  25. BF76474 – Smoky River at Grande Cache

  26. File 80827 - Nelson Creek

  27. File 80827 - Nelson Creek

  28. File 79475 - Bald Mountain Creek

  29. File 79475 - Bald Mountain Creek

  30. File 79475 - Bald Mountain Creek

  31. File 79475 - Bald Mountain Creek

  32. File 01324 - Pigeon Creek

  33. File 01324 - Pigeon Creek

  34. File 78230 - Brewster Creek

  35. File 81653 - Watercourse

  36. River Issues

  37. Lateral Stream Stability

  38. High 1 2 3a Relative Stability 3b 4 Low 5 Relative Stability Low High Stability of Stream Types

  39. BF9259 – Freeman River

  40. BF8036 – Redwillow River

  41. BF13078 – Little Red Deer River

  42. File 81113 - Marten Creek

  43. File 75904 - Island Creek

  44. File 75904 - Island Creek

  45. File 75904 - Island Creek

  46. File 73204 - Whitehorse Creek

  47. File 73204 - Whitehorse Creek

  48. File 73204 - Whitehorse Creek

  49. File 73204 - Whitehorse Creek

  50. File 73204 - Whitehorse Creek