Calculate crane capacities
Load, unload and transport construction materials
Measure weight to prepare for rigging and hoisting
Read blueprints to determine work requirements
Clean and lubricate cranes
Assist in drilling and blasting rock on construction sites
Assist in framing houses, erecting walls and building roofs
Clean and pile salvaged materials
Perform routine maintenance work
Clean up chemical spills and other contaminants
Remove rubble and other debris at construction sites
