- Dams, waterways, docks, and other marine construction (21)
- Caisson drilling (2)
- Dam construction (2)
- Drainage system construction (6)
- Dredging contractor (1)
- Harbor construction (1)
- Irrigation system construction (21)
- Levee construction (1)
- Marine construction (3)
- Pond construction (13)
- Waterway construction (3)
- Railroad and subway construction (1)
- Railroad and railway roadbed construction (9)
- Subway construction (1)
- Athletic and recreation facilities construction (4)
- Athletic field construction (1)
- Golf course construction (39)
- Tennis court construction (7)
- Land preparation construction (35)
- Land leveling (12)
- Land reclamation (7)
- Rock removal (5)
- Timber removal (3)
- Industrial plant construction (13)
- Mine loading and discharging station construction (2)
- Oil refinery construction (1)
- Waste disposal plant construction (3)
- Waste water and sewage treatment plant construction (14)
- Blasting contractor, except building demolition (12)
- Earthmoving contractor (40)
- Land clearing contractor (18)
- Power plant construction (3)
- Trenching contractor (46)
