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  • Oregondigital df66q284t
    Grande Ronde River with power diversion dam completely across the river. It is a barrier for fish at low water when only seepage escapes downstream. Dam is located between La Grande and Island City, Oregon ...
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  • 22. [Image] Lewiston Dam
    Oregondigital df66q2721
    Lewiston Dam on the Clearwater River. Washington Water Power Company dam
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  • Oregondigital df70pk78w
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  • 24. [Image] Lewiston Dam weir
    Oregondigital df66q266w
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  • 25. [Image] Lewiston Dam weir
    Oregondigital df66q268f
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  • Oregondigital df70rp78v
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  • Oregondigital df70q4705
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  • Oregondigital hx11xf505
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  • 29. [Image] Abandoned dam
    Oregondigital df66q1309
    Abandoned dam on the Coast Fork Willamette River; 1938-06-20
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  • Oregondigital df66q991p
    Diversion dam for flour mill at Union, Oregon
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