4 injured while placing concrete on roof

09/1/2011 | San Francisco Chronicle · Yahoo!

Four construction workers in San Francisco sustained injuries while they were placing concrete on the roof of an apartment building. The workers fell a few stories down a stairwell, concrete poured over them and they sustained broken bones and other injuries. The injured were working for Nibbi Brothers General Contractors of San Francisco. The state's Division of Occupational Safety and Health is investigating.

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San Francisco Chronicle · Yahoo!

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