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Subject
- Bridges87
- Design and construction20
- Roads13
- Structural analysis (Engineering)10
- Strains and stresses9
- Maintenance and repair8
- Finance5
- Infrastructure (Economics)5
- Transportation4
- Trusses4
- Appropriations and expenditures3
- Dams3
- Engineering3
- Federal aid to transportation3
- Girders3
- History3
- Inspection3
- Law and legislation3
- Road construction contracts3
- Roofs3