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Cab of Manitowoc 4000W 150 ton track mounted lattice boom crane with flying jib. Construction site for addition to university dormitory. Crane and its cab, including rear counterweights, can rotate 360 degrees. Note the metal rods extending from brackets on the end track drive rollers, to which yellow caution tape has been attached to mark the rotating counterweight hazard area. Mosher Jordan Renovation and New Dining Center, University of Michigan, Ann Arbor, March 2007.
Cab of Manitowoc 4000W 150 ton track mounted lattice boom crane with flying jib. Construction site for addition to university dormitory. Crane and its cab, including rear counterweights, can rotate 360 degrees. Note the metal rods extending from brackets on the end track drive rollers, to which yellow caution tape has been attached to mark the rotating counterweight hazard area. Mosher Jordan Renovation and New Dining Center, University of Michigan, Ann Arbor, March 2007.
Structural steel construction: Tower crane safely moves 2 structural ironworkers in personnel basket from top of structural steel frame to ground during steel erection. Cardiovascular Center, University of Michigan Hospital, Ann Arbor, 2004.
Steel construction: Three man structural ironworker crew unhooks large, high steel truss from crane. All are wearing fall protection: body harness with safety lanyard attached by sliding clip to top flange of truss. UCLA, Los Angeles, CA, 2004.
Masonry construction, construction safety: Manufactured tubular scaffold posts supported at base by unstable brick cribbing. Preferred methods would include screw-jacks at scaffold bases extended to stable mud sill or other stable footing. 2" x 10" wood planks form working platform for masons to stand on and a higher material platform on which masonry units (brick here) and mortar are placed. The outside of the material level should have guardrails to protect laborers placing and stacking brick and working with mortar. The ramp between the side and front sections of scaffold should also have guardrails and also cleats for good footing, especially in the wet weather in which masons are working. Ann Arbor, Michigan, 2004 OSHA 1926-L requires: Supported scaffold poles, legs, posts, frames, and uprights shall bear on base plates and mud sills or other adequate firm foundation. Footings shall be level, sound, rigid, and capable of supporting the loaded scaffold without settling or displacement. Unstable objects shall not be used to support scaffolds or platform units.
Concrete construction safety: Bobcat 763 skid steer tractor with pavement breaker attachment. Note the cockpit safety approach to provide equipment operator with roll-over protection and protection from side or rear impact with hostile construction environment. The operator is provided excellent visibility, in place of barrier type protection to his front, to deliver quality with productivity and safety. The operator is exposed to an extreme eye safety hazard by his failure to wear eye protection against chipped concrete. Massachusetts, 2002.
Construction safety: Placing brick pavers as part of new brick pavement. Workers are kneeling on curb, gutter, and pavement of street carrying traffic, yet they have no traffic warning barriers or signs, no highly visible orange or striped clothing, and no traffic control to protect themselves from moving traffic. Ann Arbor, 2004.
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
Masonry construction safety, fall hazard: Laborer/ hod carrier stands on top of 3 ft high unstable stack of concrete block and 19 ft above ground, leaning out and stacking heavy blocks, with no fall protection from safety line or guardrail. Ann Arbor, 2004.
Cab of Manitowoc 4000W 150 ton track mounted lattice boom crane with flying jib. Construction site for addition to university dormitory. Crane and its cab, including rear counterweights, can rotate 360 degrees. Note the metal rods extending from brackets on the end track drive rollers, to which yellow caution tape has been attached to mark the rotating counterweight hazard area. Mosher Jordan Renovation and New Dining Center, University of Michigan, Ann Arbor, March 2007.
Cab of Manitowoc 4000W 150 ton track mounted lattice boom crane with flying jib. Construction site for addition to university dormitory. Crane and its cab, including rear counterweights, can rotate 360 degrees. Note the metal rods extending from brackets on the end track drive rollers, to which yellow caution tape has been attached to mark the rotating counterweight hazard area. Mosher Jordan Renovation and New Dining Center, University of Michigan, Ann Arbor, March 2007.
Cab of Manitowoc 4000W 150 ton track mounted lattice boom crane with flying jib. Construction site for addition to university dormitory. Crane and its cab, including rear counterweights, can rotate 360 degrees. Note the metal rods extending from brackets on the end track drive rollers, to which yellow caution tape has been attached to mark the rotating counterweight hazard area. Mosher Jordan Renovation and New Dining Center, University of Michigan, Ann Arbor, March 2007.
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