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District 8 - Coal Mine Safety and Health
Info-Grams and Close Call Accidents

Close Call Graphic
Department of Labor
Mine Safety and Health Administration

Accident Info-Gram

Injury from Falling Draw-Rock

On July 27, 2001 at 11:00 P.M., falling draw-rock injured a roof bolting machine operator at a District 8 mine in Indiana. The machine operator was bolting in the No. 6 crosscut between the No. 1 and No. 2 rooms with a Lee Norse TD-43 single-boom roof bolting machine. While preparing to install the seventh bolt in the pattern, the operator was struck from behind by a piece of mine roof that fell from between the roof bolts. Subsequently, the draw-rock drove the operator into the bolting machine. This rock measured 3-feet in width, 5-feet in length, and 6-inches thick. The injured miner was taken to the local hospital and released on August 1, 2001. He suffered a broken right shoulder and right arm, a cut to his lip and face, and a puncture wound to his chest area. This mine bolts on a maximum pattern of 5 feet by 5 feet. The bolts in the accident area met the roof control plan. At the time of the accident, the miner had twenty four weeks experience as a roof bolting machine operator and forty four weeks of total mining experience.
Draw-Rock on Roof Bolter

  • Always examine your workplace thoroughly.
  • Take down any loose material.
  • Adverse roof conditions require immediate attention! Reduce the roof bolt spacing and/or add additional support.

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This file was last updated on 1/28/2003

This information was provided by concerned miners in an effort to eliminate accidents. Accident or "close call" information within District 8 may be shared by contacting the MSHA office at (812) 882-7617.