1. Touchet Consolidation Washington Department of Fish and Wildlife

2. Why was it needed? Dayton AP intake screens no longer met NOAA criteria. Barrier dam was undermining at high flows. Barrier dam restricting juvenile salmon, steelhead and bull trout upstream passage. Adult steelhead trapping facility was inadequate for expanding program needs. An opportunity arose to consolidate diversions for two irrigation districts with the Dayton AP facility.

3. What was proposed? (what was consolidation anyway?) Fix undermined barrier dam to stabilize Remove old diversion structure and replace: –New self-cleaning vertical belt screen. –New fish ladder that meets NOAA upstream and downstream (juvenile & adult) passage criteria, with integral adult fish trap. –Separate diversion controls for AP and two downstream irrigation districts. –Greatly improved operational safety for hatchery and evaluation staffs.

4. At the Beginning

5. Adult and juvenile passage was not good.

6. Existing Push-up berm for irrigators.

7. Dewatering for demolition.

8. Repairs to dam face to correct undermining

9. Detail of undermining fix.

10. New structure layout

11. New ladder structure and dam face

12. New vertical belt screens

13. New ladder with flow

14. New adult trap

15. What remains? Protection mats around adult trap/holding to protect fish if they jump against sides Install remaining valves and control gates Install Grip-strut walkways Control structures at irrigation ditches Install suspended panel barrier to prevent fish from jumping dam and use ladder Install upper portion of intake trash rack Security fencing

16. What did it cost? Total estimated construction cost = $ 1.8M –LSRCP - $500K –WA SRFB - $550K –BPA - $300K –Tri-State Steelheaders - $100K –FRIMA - $300K Initial Design –FRIMA - $100K

17. New facility as of February 2008 Questions?