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NW Stream Survey
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Subject
Rivers -- Washington (89)
Dams (76)
Fish Traps (28)
Chinook Salmon (16)
Salmon (15)
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Creator
Witter, Alfred S. (16)

results 1-20 of 94 item(s)  page 1 of 5 : ( <<  1  2  3  4  5  >> ) :: previous : next
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 Image: Image Title: Subject: Description/Notes:
1. Rock Island dam power plant and gates Rock Island dam power plant and gates Dams; Rivers -- Washington; Power plants
2. Rock Island dam central spillway Rock Island dam central spillway Dams; Rivers -- Washington; Spillways
3. Rock Island Dam power plant and gates Rock Island Dam power plant and gates Dams; Rivers -- Washington; Power plants
4. Rock Island Dam north trap Rock Island Dam north trap Dams; Rivers -- Washington
5. Rock Island Dam Rock Island Dam Dams; Rivers -- Washington
6. Central trap at Rock Island dam Central trap at Rock Island dam Dams; Rivers -- Washington; Fish traps
7. Central spillway at the Rock Island Dam Central spillway at the Rock Island Dam Dams; Rivers -- Washington; Spillways
8. Collecting pool at trap at Rock Island Dam Collecting pool at trap at Rock Island Dam Dams; Rivers -- Washington; Fish traps
9. Entiat weir under construction Entiat weir under construction Weirs; Dams; Rivers -- Washington
10. Chinooks near Wenatchee River fish dump Chinooks near Wenatchee River fish dump Salmon; Rivers -- Washington
11. Rotary drum screen Rotary drum screen Fish screens A rotary drum screen in a diversion ditch on the Wenatchee River
A by-pass provides passage for the fingerlings from in front of the drum screen back to the river
12. Brail from left trap Brail from left trap Dams; Rivers -- Washington; Fish traps Brail from left trap at Rock Island Dam during summer
13. Center trap Center trap Dams; Rivers -- Washington; Fish traps Center trap at Rock Island Dam
14. Central fish hoist and elevator Central fish hoist and elevator Dams; Rivers -- Washington; Hoisting machinery Central fish hoist and elevator at Rock Island Dam
15. Central fish hoist and elevator Central fish hoist and elevator Dams; Rivers -- Washington; Hoisting machinery Central fish hoist at Rock Island Dam
16. Central spill and left fishway Central spill and left fishway Dams; Rivers -- Washington; Fishways; Spillways Central spill and left fishway taken from middle fishway at Rock Island Dam
17. Chinook jumping Chinook jumping Dams; Rivers -- Washington; Chinook salmon; Fish ladders Chinook jumping over middle rocks at the Rock Island Dam
18. Chinook jumping rock Chinook jumping rock Dams; Rivers -- Washington; Chinook salmon; Fish ladders Chinook jumping rock left of middle ladder at the Rock Island Dam
19. Chinook jumping rock Chinook jumping rock Dams; Rivers -- Washington; Chinook salmon; Fish ladders Chinook jumping rock left of middle ladder at the Rock Island Dam
20. Chinook jumping rock Chinook jumping rock Dams; Rivers -- Washington; Chinook salmon; Fish ladders Chinook jumping rock left of middle ladder at the Rock Island Dam
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