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NW Stream Survey

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Subject
Dams (74)
Rivers -- Washington (74)
Fish Traps (28)
Chinook Salmon (16)
Fish Ladders (13)
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Creator
Witter, Alfred S. (15)

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 Image: Image Title: Subject: Description/Notes:

1. East fish trap at Rock Island Dam East fish trap at Rock Island Dam Dams; Fish ladders; Rivers -- Washington East fish trap and upper part of fish ladder at the Rock Island Dam

2. Rock Island Dam Rock Island Dam Dams; Rivers -- Washington Rock Island Dam on the Columbia River

3. Central trap at Rock Island dam Central trap at Rock Island dam Dams; Rivers -- Washington; Fish traps

4. Tunnels from collecting pool to brail Tunnels from collecting pool to brail Dams; Rivers -- Washington; Fish traps Tunnels from collecting pool to brail, on left trap, at the Rock Island Dam in the spring

5. Salmon going from brail through tunnel to elevator Salmon going from brail through tunnel to elevator Dams; Rivers -- Washington; Salmon; Fish traps Left trap at the Rock Island Dam during the summer

6. Rock Island Dam Rock Island Dam Dams; Rivers -- Washington Rock Island Dam on the Columbia River
The middle fish ladder has not yet been constructed

7. Collecting pool at trap at Rock Island Dam Collecting pool at trap at Rock Island Dam Dams; Rivers -- Washington; Fish traps

8. Salmon entering elevator from brail Salmon entering elevator from brail Dams; Rivers -- Washington; Salmon; Fish traps Rock Island Dam left trap in the summer

9. Central spill taken from middle fishway Central spill taken from middle fishway Dams; Rivers -- Washington; Spillways; Fishways Rock Island Dam

10. Rock Island Dam Rock Island Dam Dams; Rivers -- Washington; Spillways; Fishways; Fish traps Rock Island dam showing the central spillway, west trap and fishway

11. Salmon entering elevator from brail Salmon entering elevator from brail Dams; Rivers -- Washington; Salmon; Fish traps Rock Island Dam

12. Rock Island dam power plant and gates Rock Island dam power plant and gates Dams; Rivers -- Washington; Power plants

13. Rock Island Dam Rock Island Dam Dams; Rivers -- Washington; Spillways; Fishways; Fish traps Rock Island dam showing central spillway and west trap and fishway

14. Rock Island dam central spillway Rock Island dam central spillway Dams; Rivers -- Washington; Spillways

15. Rock Island Dam power plant and gates Rock Island Dam power plant and gates Dams; Rivers -- Washington; Power plants

16. Rock Island Dam north trap Rock Island Dam north trap Dams; Rivers -- Washington

17. Rock Island Dam fish loads Rock Island Dam fish loads Dams; Rivers -- Washington; Fish stocking; Chinook salmon; Steelhead (Fish) First load of Chinooks and Steelheads at the left (east) trap

18. Rock Island Dam Rock Island Dam Dams; Rivers -- Washington

19. Chinooks jumping over middle rocks Chinooks jumping over middle rocks Dams; Rivers -- Washington; Chinook salmon Rock Island Dam

20. Chinook on rock Chinook on rock Dams; Rivers -- Washington; Chinook salmon; Fish ladders Chinook on rock left of middle ladder; Rock Island
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