- Dams, waterways, docks, and other marine construction (23)
- Caisson drilling (6)
- Dam construction (2)
- Dock construction (10)
- Drainage system construction (78)
- Dredging contractor (7)
- Irrigation system construction (18)
- Levee construction (1)
- Marine construction (14)
- Pond construction (12)
- Waterway construction (6)
- Railroad and subway construction (13)
- Cutting of right-of-way (1)
- Railroad and railway roadbed construction (27)
- Subway construction (4)
- Athletic and recreation facilities construction (2)
- Athletic field construction (2)
- Golf course construction (20)
- Tennis court construction (10)
- Land preparation construction (62)
- Land leveling (4)
- Land reclamation (4)
- Rock removal (4)
- Timber removal (4)
- Industrial plant construction (9)
- Chemical plant and refinery construction (4)
- Mine loading and discharging station construction (2)
- Oil refinery construction (1)
- Waste disposal plant construction (6)
- Waste water and sewage treatment plant construction (22)
- Blasting contractor, except building demolition (10)
- Earthmoving contractor (43)
- Land clearing contractor (33)
- Pile driving contractor (4)
- Power plant construction (9)
- Trenching contractor (56)
