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 3128 crawler mounted backhoe straddles trench for underground pipe. Worker in trench is fine grading/cleaning trench with shovel. Workers standing in 8 ft deep trench have no support against sidewall collapse. Safety and laws require the trench walls to be supported or sloped back at depths greater than 5 ft. Michigan 2006
constructionmethodequipmentsafetytrenchworkersstanding deepno supportsidewallcollapseworkerCat 3128backhoepipe0018
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