- Dams, waterways, docks, and other marine construction (47)
- Caisson drilling (7)
- Dam construction (18)
- Dock construction (45)
- Drainage system construction (75)
- Dredging contractor (26)
- Harbor construction (1)
- Irrigation system construction (88)
- Levee construction (3)
- Marine construction (106)
- Pier construction (8)
- Pond construction (32)
- Waterway construction (7)
- Railroad and subway construction (29)
- Cutting of right-of-way (8)
- Railroad and railway roadbed construction (47)
- Subway construction (2)
- Athletic and recreation facilities construction (17)
- Athletic field construction (5)
- Golf course construction (58)
- Tennis court construction (28)
- Land preparation construction (167)
- Land leveling (53)
- Land reclamation (15)
- Rock removal (7)
- Timber removal (9)
- Industrial plant construction (68)
- Chemical plant and refinery construction (47)
- Mine loading and discharging station construction (4)
- Oil refinery construction (67)
- Waste disposal plant construction (22)
- Waste water and sewage treatment plant construction (71)
- Blasting contractor, except building demolition (30)
- Earthmoving contractor (200)
- Land clearing contractor (271)
- Pile driving contractor (24)
- Power plant construction (61)
- Trenching contractor (106)
