Tend pumps, compressors, or generators to provide power for tools, machinery, or equipment or to heat or move materials, such as asphalt.; Tend machines that pump concrete, grout, cement, sand, plaster, or stucco through spray guns for application to ceilings or walls.

Lubricate, clean, or repair machinery, equipment, or tools.

Lubricate, clean, or repair machinery, equipment, or tools.

Signal equipment operators to facilitate alignment, movement, or adjustment of machinery, equipment, or materials.

Perform construction laborer duties at green building sites, such as renewable energy plants or wind turbine installations.; Perform site activities required of green certified construction practices, such as implementing waste management procedures, identifying materials for reuse, or installing erosion or sedimentation control mechanisms.

Control traffic passing near, in, or around work zones.

Read plans, instructions, or specifications to determine work activities.

Operate or maintain air monitoring or other sampling devices in confined or hazardous environments.

Clean or prepare construction sites to eliminate possible hazards.

Dig ditches or trenches, backfill excavations, or compact and level earth to grade specifications, using picks, shovels, pneumatic tampers, or rakes.

Dig ditches or trenches, backfill excavations, or compact and level earth to grade specifications, using picks, shovels, pneumatic tampers, or rakes.

Measure, mark, or record openings or distances to layout areas where construction work will be performed.

Measure, mark, or record openings or distances to layout areas where construction work will be performed.

Erect or dismantle scaffolding, shoring, braces, traffic barricades, ramps, or other temporary structures.

Erect or dismantle scaffolding, shoring, braces, traffic barricades, ramps, or other temporary structures.

Load, unload, or identify building materials, machinery, or tools, distributing them to the appropriate locations, according to project plans or specifications.

Load, unload, or identify building materials, machinery, or tools, distributing them to the appropriate locations, according to project plans or specifications.

Provide assistance to craft workers, such as carpenters, plasterers, or masons.

Spray materials, such as water, sand, steam, vinyl, paint, or stucco, through hoses to clean, coat, or seal surfaces.; Apply caulking compounds by hand or caulking guns to protect against entry of water or air.

Mop, brush, or spread paints, cleaning solutions, or other compounds over surfaces to clean them or to provide protection.; Spray materials, such as water, sand, steam, vinyl, paint, or stucco, through hoses to clean, coat, or seal surfaces.

Raze buildings or salvage useful materials.

Position or dismantle forms for pouring concrete, using saws, hammers, nails, or bolts.

Place, consolidate, or protect case-in-place concrete or masonry structures.

Place, consolidate, or protect case-in-place concrete or masonry structures.

Mix, pour, or spread concrete, using portable cement mixers.; Mix ingredients to create compounds for covering or cleaning surfaces.

Operate jackhammers or drills to break up concrete or pavement.

Mix, pour, or spread concrete, using portable cement mixers.

Mix, pour, or spread concrete, using portable cement mixers.