- Dams, waterways, docks, and other marine construction (18)
- Caisson drilling (2)
- Dam construction (2)
- Dock construction (36)
- Drainage system construction (32)
- Dredging contractor (15)
- Harbor construction (1)
- Irrigation system construction (53)
- Marine construction (17)
- Pier construction (1)
- Pond construction (29)
- Waterway construction (1)
- Railroad and subway construction (9)
- Cutting of right-of-way (2)
- Railroad and railway roadbed construction (34)
- Subway construction (2)
- Athletic and recreation facilities construction (7)
- Athletic field construction (5)
- Golf course construction (41)
- Tennis court construction (22)
- Land preparation construction (102)
- Land leveling (129)
- Land reclamation (4)
- Rock removal (8)
- Timber removal (14)
- Industrial plant construction (16)
- Chemical plant and refinery construction (1)
- Waste disposal plant construction (11)
- Waste water and sewage treatment plant construction (27)
- Blasting contractor, except building demolition (24)
- Earthmoving contractor (60)
- Land clearing contractor (249)
- Pile driving contractor (6)
- Power plant construction (16)
- Trenching contractor (40)
