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NW Stream Survey
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Search results for Columbia River -- Rock Island Dam (Oregon)   
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Subject
Dams (74)
Rivers -- Washington (74)
Fish Traps (28)
Chinook Salmon (16)
Fish Ladders (13)
Salmon (9)
Spillways (7)
Fish (7)
Fishways (5)
Hoisting Machinery (3)

Creator
Witter, Alfred S. (15)

results 1-20 of 74 item(s)  page 1 of 4 : ( <<  1  2  3  4  >> ) :: previous : next
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 Image: Image Title: Subject: Description/Notes:
1. Central spill taken from middle fishway Central spill taken from middle fishway Dams; Rivers -- Washington; Spillways; Fishways Rock Island Dam
2. Salmon entering elevator from brail Salmon entering elevator from brail Dams; Rivers -- Washington; Salmon; Fish traps Rock Island Dam
3. Rock Island Dam Rock Island Dam Dams; Rivers -- Washington Rock Island Dam on the Columbia River
4. Left fish trap Left fish trap Dams; Rivers -- Washington; Fish traps; Trucks Left (east) fish trap at Rock Island Dam
5. Central trap at Rock Island dam Central trap at Rock Island dam Dams; Rivers -- Washington; Fish traps
6. 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
7. Left fish ladder Left fish ladder Dams; Rivers -- Washington; Fish ladders Left Ladder (east fishway) at Rock Island Dam
8. 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
9. Chinooks jumping over middle rocks Chinooks jumping over middle rocks Dams; Rivers -- Washington; Chinook salmon Rock Island Dam
10. 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
11. Chinook jumping Chinook jumping Dams; Rivers -- Washington; Chinook salmon; Fish ladders Chinook jumping over middle rocks at the Rock Island Dam
12. Center trap Center trap Dams; Rivers -- Washington; Fish traps Center trap at Rock Island Dam
13. Collecting pool at trap at Rock Island Dam Collecting pool at trap at Rock Island Dam Dams; Rivers -- Washington; Fish traps
14. Salmon entering elevator from brail Salmon entering elevator from brail Dams; Rivers -- Washington; Salmon; Fish traps Rock Island Dam left trap in the summer
15. East fishway and collecting pool East fishway and collecting pool Dams; Rivers -- Washington; Fishways Rock Island Dam
16. Tunnels from collecting pool Tunnels from collecting pool Dams; Rivers -- Washington; Fish traps Tunnels from collecting pool into brail at east trap at the Rock Island Dam
17. Salmon entering elevator from brail Salmon entering elevator from brail Dams; Rivers -- Washington; Salmon; Fish traps Rock Island Dam
18. 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
19. 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
20. Chinooks in brail Chinooks in brail Dams; Rivers -- Washington; Fish traps Chinooks in brail at east trap at Rock Island Dam
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