1. Hydraulic Machines Used in Fish Screens September, 2006 Ryan L. McCormick, P.E. Oregon Dept of Fish & Wildlife

2. Purpose Use a hydraulic pump to drive a hydraulic cylinder or pitman arm to move screen cleaning components.

3. Advantages  Safety  Reliability  Electricity Not Required  Power Transmission Flexibility

4. Disadvantages  Higher Cost for Smaller Screens  Regular Maintenance  Compound Driving System

5. Breitenbush Screen  Construction Completed Jan, 2006  Screened Flow is 35cfs  Water is primarily for hydroelectric with some domestic water use  Electrically driven hydraulic system  Designed by Mike Lambert (ODFW) & Conrad Zevely (Breitenbush Staff)  Hydraulics move gang wiper

8. Lost & Boulder  Construction Completed in November, 2005  Screened Flow is 30 cfs  Water is primarily used for irrigation  Paddle wheel driven system  Designed by Suzanne Pollon, ODFW  Hydraulics move gang wiper

12. Dee Screen  Construction Completed in January 1999  Screened Flow is 10 cfs  Water primarily used for irrigation  Paddle wheel driven system  Designed by Bernie Michaud (ODFW) & Mike Lambert (ODFW)  Hydraulics move gang wiper

14. Upper Herman Creek Screen  Construction Completed in Summer 2006  Screen Flow is 20 cfs  Water is primarily used for fish rearing  Electrically driven hydraulic system  Designed by Mike Lambert (ODFW) & Lowell Watkins (ODFW)  Hydraulics move back wash spray nozzles

19. Future Projects  Estes Diversion on Powder River –Expected Completion – Fall 2007 –Screened Water is 85 cfs –Electrically Driven Hydraulic System –Type: V-Screen Gang Wiper

20. Future Projects (cont’d)  Page Springs Dam, West Canal, on Donner und Blitzen River –Expected Completion – Spring 2007 –Screened Water is 60 cfs –Electrically Driven Hydraulic System –Type: V-Screen Gang Wiper