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Topic
- Architecture, American 58
- Architecture--United States 58
- Brockapp, Mildred, 1924- 24
- Kornik, John, 1916- 20
- River engineering 13
- United States--Appropriations and expenditures 13
- River surveys 8
- Sculpture 8
- West (U.S.) 7
- Bodies of water 6
- Buildings 4
- Rivers 4
- Boats and boating 3
- Canals--Design and construction--Costs 3
- Locks (Hydraulic engineering) 3
- Collars 2
- Dams--Design and construction 2
- Hospitals 2
- Inland navigation 2
- Photography 2
