- Dams, waterways, docks, and other marine construction (17)
- Dam construction (3)
- Dock construction (18)
- Drainage system construction (15)
- Dredging contractor (8)
- Harbor construction (1)
- Irrigation system construction (17)
- Levee construction (2)
- Marine construction (22)
- Pier construction (1)
- Pond construction (12)
- Waterway construction (3)
- Railroad and subway construction (5)
- Cutting of right-of-way (1)
- Railroad and railway roadbed construction (15)
- Athletic and recreation facilities construction (4)
- Athletic field construction (1)
- Golf course construction (9)
- Tennis court construction (12)
- Land preparation construction (51)
- Land leveling (33)
- Land reclamation (2)
- Rock removal (1)
- Timber removal (2)
- Industrial plant construction (13)
- Chemical plant and refinery construction (1)
- Oil refinery construction (2)
- Waste disposal plant construction (4)
- Waste water and sewage treatment plant construction (21)
- Blasting contractor, except building demolition (21)
- Earthmoving contractor (41)
- Land clearing contractor (48)
- Pile driving contractor (3)
- Power plant construction (5)
- Trenching contractor (21)
