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Creator
- United States. Army. Office of the Chief of Engineers 15
Topic
- Locks (Hydraulic engineering) 15
- United States--Appropriations and expenditures 11
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- Dams--Design and construction 8
- River surveys 7
- West (U.S.) 7
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Region
- Columbia River >> Clatsop County >> Oregon >> United States 12
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Type
- Text 13
- Collection 2
Collection
- Western Waters Digital Library 15
