Municipal parking lot construction error crushes worker's legs

From NBC:

A construction worker's legs were crushed when a seven-ton hammer came plunging down on him at a job site in Queens Wednesday, authorities say.

Fire officials on the scene said there was some sort of malfunction on a hammer that drives steel into the ground, and the hammer turned and fell.

The extrication at the site near Queens Boulevard and 82nd Avenue in Kew Gardens was tricky, firefighters say. But the worker was alert and conscious when he was transported from the scene.