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RELIEF DITCH DIVERSION MODIFICATION

RELIEF DITCH DIVERSION MODIFICATION. GUNNISON GORGE ANGLERS GEORGE OSBORN---PROJECT COORDINATOR Gunnison Gorge Anglers (970)872-3564 CARY DENISON---PROJECT MANAGER Gunnison Basin Projects National TU (970)596-3291 Cdenison@tu.org. Location Map. Relief Ditch Diversion.

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RELIEF DITCH DIVERSION MODIFICATION

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  1. RELIEF DITCH DIVERSION MODIFICATION • GUNNISON GORGE ANGLERS • GEORGE OSBORN---PROJECT COORDINATOR • Gunnison Gorge Anglers • (970)872-3564 • CARY DENISON---PROJECT MANAGER • Gunnison Basin Projects • National TU • (970)596-3291 • Cdenison@tu.org

  2. Location Map Relief Ditch Diversion • Relief Ditch located 3.5 miles downstream from Pleasure Park and 1 river mile upstream from BLM takeout 4.5 miles upstream from HWY 65 bridge takeout.

  3. Push up dam

  4. Erosion---Riparian degradation---Downstream siltation Over diversion of water

  5. Fish entrainment

  6. Poor control

  7. Fish passage barrier

  8. Boater hazard

  9. GGA project---Feasibility study Relief Ditch Board approval

  10. Contact adjacent landowners---Find seed money Project management committee

  11. Develop design and obtain cost estimate---Identify stakeholders Healthy Rivers Fund grant

  12. Identify multiple benefits---Gunnison Basin Roundtable grant Independent design review

  13. GOAL • Build a sustainable diversion structure that provides a better managed, full decree of irrigation water to the Relief Ditch, improves the riparian environment while reducing erosion, fish entrainment, and barriers to fish movement as well as allowing safe boater passage and fishing access.

  14. Required exemptions, permits and EA, Insurance coverage, legal advice

  15. Professional accounting services---Engineering and construction supervision---Material sources---CRD grant

  16. SCTF grant---CWCB grant---Hire contractor Formal groundbreaking

  17. Construction Phase • November 11, Start of Construction Phase • Contractor: Stonefly Earthworks from Montrose • Imported and placed 4500 tons of large basalt boulders • much of which donated by Dr. Tom Whiting of Whiting Farms • Moved over 20,000 cubic yards of material • Poured nearly 100 yards of formed concrete • 6000 man hours

  18. Design

  19. The Process

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