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Historic stream surveys
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Fish ladders
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31. [Image] Dam on Roaring Creek
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32. [Image] Obstruction on Coast Fork Willamette
Obstruction on Coast Fork Willamette River Ladder has broken down;1938-06Citation -
33. [Image] Cedar Creek Falls
Powerflume, fish-ladder and mill at high-water stage on Cedar Creek FallsCitation -
34. [Image] Bottom of fishway
Bottom of fishway over lumber mill dam at Carlton, Oregon, on the North Yamhill River;1940-08-24 Photograph from Album 1 page 44Citation -
35. [Image] Fish ladder on Willamina Creek
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36. [Image] Fish ladder near Willamina, Oregon
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37. [Image] Power plant tail-race
Power plant tail-race and mouth of fish ladder at the River Mill Power Plant on the Clackamas River;1940-08-23Citation -
38. [Image] Dam and fish ladder near Glenwood
Consolidated Lumber Company's dam and fish ladder near Glenwood, Oregon, on Gales Creek, a tributary of the Tualatin River; 1940-09-21Citation -
39. [Image] Dam board in fish ladder
Coast Fork Willamette River above Cottage Grove, Oregon, showing dam board in poor fish ladder;1938-06Citation -
40. [Image] Dry fish ladder
Dry fish ladder at Mountain States Power Plant at Stayton, Oregon (Chinooks fighting tailrace);1940-08-11Citation