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Subject
- Construction[remove]12
- Navigation improvements12
- Rivers, creeks, streams, etc12
- Hydrographic surveying11
- Dredging9
- Levees9
- Dams8
- Engineering8
- Federal receipts and expenditures8
- Financial statements8
- Harbors and ports8
- Locks (Hydraulic engineering)8
- Reservoirs8
- United States. Mississippi River Commission8
- Channels (Hydraulic engineering)7
- Snags and snagging7
- Canals6
- Flood control6
- Waterworks6
- Budgets and appropriations5