- Dams, waterways, docks, and other marine construction (10)
- Dam construction (5)
- Dock construction (27)
- Drainage system construction (17)
- Dredging contractor (4)
- Irrigation system construction (4)
- Marine construction (19)
- Pier construction (6)
- Pond construction (15)
- Railroad and subway construction (5)
- Cutting of right-of-way (1)
- Railroad and railway roadbed construction (8)
- Athletic and recreation facilities construction (3)
- Athletic field construction (3)
- Golf course construction (13)
- Tennis court construction (4)
- Land preparation construction (19)
- Land leveling (7)
- Rock removal (3)
- Timber removal (7)
- Industrial plant construction (4)
- Oil refinery construction (1)
- Waste disposal plant construction (3)
- Waste water and sewage treatment plant construction (10)
- Blasting contractor, except building demolition (12)
- Earthmoving contractor (31)
- Land clearing contractor (23)
- Pile driving contractor (2)
- Power plant construction (3)
- Trenching contractor (44)
