Construction Safety: trench, traffic, concrete, masonry, shore, housekeeping, wind

Construction safety for equipment, steel erection, masonry, concrete, roofing, cladding, curtain walls, roadway, traffic, rollover, man lifts, personnel lifts.

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Trench construction/safety: Caterpillar 938G articulated wheeled tractor with forklift attachment transports steel trench box/shield from one position to another along a trench. Tucson, Arizona November 2006.

trench construction safety Caterpillar 938G articulated wheeled tractor forklift attachment transports steel trench shield box trench box Tucson Arizona November 2006