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Topic
- Bridges--Design and construction 20
- United States. Congress--Records and correspondence 18
- Northwest, Pacific 16
- River engineering 3
- United States--Appropriations and expenditures 3
- River surveys 2
- Railroad construction & maintenance 1
Region
- Willamette River >> Multnomah County >> Oregon >> United States 18
- Boston >> Suffolk County >> Massachusetts >> United States 2
- Elk River >> Lauderdale >> Alabama >> United States 2
- Limestone >> Alabama >> United States 2
- Massachusetts >> United States 2
- Oregon >> United States 2
- Portland >> Clackamas County >> Oregon >> United States 2
- Yamhill River >> Yamhill County >> Oregon >> United States 2
- Albany >> Linn County >> Oregon >> United States 1
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License
- Creative Commons: Public Domain Mark 1.0 20
Type
- Text 18
- Collection 2
Decade
- 1890-1899 20