- Caisson drilling (30)
- Canal construction (4)
- Dam construction (34)
- Dock construction (59)
- Drainage system construction (159)
- Dredging contractor (32)
- Harbor construction (3)
- Irrigation system construction (100)
- Levee construction (66)
- Marine construction (125)
- Pier construction (58)
- Pond construction (21)
- Waterway construction (10)
- Cutting of right-of-way (43)
- Railroad and railway roadbed construction (80)
- Subway construction (1)
- Athletic and recreation facilities construction (2)
- Athletic field construction (9)
- Golf course construction (57)
- Tennis court construction (20)
- Land leveling (42)
- Land reclamation (82)
- Rock removal (1)
- Timber removal (2)
- Industrial plant construction (18)
- Chemical plant and refinery construction (10)
- Mine loading and discharging station construction (40)
- Oil refinery construction (67)
- Waste disposal plant construction (69)
- Waste water and sewage treatment plant construction (196)
- Heavy construction, nec, nec (377)
- Blasting contractor, except building demolition (162)
- Earthmoving contractor (309)
- Land clearing contractor (242)
- Pile driving contractor (78)
- Power plant construction (50)
- Trenching contractor (149)
