Athletic field construction-general contractors

Blasting, except building demolition-contractors

Breakwater construction-general contractors

Bridle path construction-general contractors

Brush clearing or cutting-contractors

Caisson drilling-contractors

Canal construction-general contractors

Central station construction-general contractors

Channel construction-general contractors

Channel cutoff construction-general contractors

Chemical complex or facilities construction-general contractors

Clearing of land-general contractors

Cofferdam construction-general contractors

Coke oven construction-general contractors

Cutting right-of-way-general contractors

Dam construction-general contractors

Dike construction-general contractors

Discharging station construction, mine-general contractors

Dock construction-general contractors

Drainage project construction-general contractors

Dredging-general contractors

Earth moving, not connected with building construction-general

Flood control project construction-general contractors

Furnace construction for industrial plants-general contractors

Golf course construction-general contractors

Harbor construction-general contractors

Hydroelectric plant construction-general contractors

Industrial incinerator construction-general contractors

Industrial plant appurtenance construction-general contractors

Irrigation projects construction-general contractors

Jetty construction-general contractors

Kiln construction-general contractors

Land clearing-contractors

Land drainage-contractors

Land leveling (irrigation)-contractors

Land reclamation-contractors

Levee construction-general contractors

Light and power plant construction-general contractors

Loading station construction, mine-general contractors

Lock and waterway construction-general contractors

Marine construction-general contractors

Mine loading and discharging station construction-general contractors

Mining appurtenance construction-general contractors

Missile facilities construction-general contractors

Nuclear reactor containment structure construction-general contractors

Oil refinery construction-general contractors

Oven construction for industrial plants-general contractors

Oven construction, bakers'-general contractors

Petrochemical plant construction-general contractors

Petroleum refinery construction-general contractors

Pier construction-general contractors

Pile driving-contractors

Pond construction-general contractors

Power plant construction-general contractors

Railroad construction-general contractors

Railway roadbed construction-general contractors

Reclamation projects construction-general contractors

Reservoir construction-general contractors

Revetment construction-general contractors

Rock removal, underwater-contractors

Sewage treatment plant construction-general contractors

Ski tow erection-general contractors

Soil compacting service-contractors

Submarine rock removal-general contractors

Subway construction-general contractors

Tennis court construction, outdoor-general contractors

Timber removal, underwater-contractors

Tipple construction-general contractors

Trail building-general contractors

Trailer camp construction-general contractors

Trenching-contractors

Washeries construction, mining-general contractors

Waste disposal plant construction-general contractors

Water power project construction-general contractors

Water treatment plant construction-general contractors

Waterway construction-general contractors

Wharf construction-general contractors