- Dams, waterways, docks, and other marine construction (30)
- Caisson drilling (2)
- Canal construction (2)
- Dam construction (1)
- Dock construction (5)
- Drainage system construction (26)
- Dredging contractor (35)
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- Marine construction (61)
- Pond construction (8)
- Waterway construction (4)
- Railroad and subway construction (15)
- Cutting of right-of-way (5)
- Railroad and railway roadbed construction (13)
- Subway construction (2)
- Athletic field construction (2)
- Golf course construction (12)
- Tennis court construction (6)
- Land preparation construction (58)
- Land leveling (28)
- Land reclamation (1)
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- Industrial plant construction (30)
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- Mine loading and discharging station construction (1)
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- Blasting contractor, except building demolition (6)
- Earthmoving contractor (54)
- Land clearing contractor (116)
- Pile driving contractor (30)
- Power plant construction (4)
- Trenching contractor (10)
