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Topic
- Bridges--Design and construction 18
- United States. Congress--Records and correspondence 16
- Northwest, Pacific 15
- River engineering 2
- River surveys 2
- United States--Appropriations and expenditures 2
Region
- Willamette River >> Multnomah County >> Oregon >> United States 16
- Albany >> Linn County >> Oregon >> United States 1
- Alexandria >> City of Alexandria >> Virginia >> United States 1
- Boston >> Suffolk County >> Massachusetts >> United States 1
- Brazoria >> Texas >> United States 1
- Elk River >> Lauderdale >> Alabama >> United States 1
- Havana >> Havana Township >> Mason >> Illinois >> United States 1
- Huron >> Ohio >> United States 1
- Huron River >> Erie >> Ohio >> United States 1
- Illinois River >> Calhoun >> Illinois >> United States 1
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Format
- image/jpeg 18
Institution
- University of Oregon 18
Decade
- 1890-1899 18