Abstract: On February 25, 1989, Employee #1, the foreman at the Montana Creek DOT/PF road maintenance station, was plowing snow on Eagle Summit in whiteout conditions. The heavy, wet, falling snow, combined with 30 to 40 mph winds, made for zero visibility. Employee #1 had plowed through the west section of the road with an Oshkosh 4 by 4 dump truck equipped with a snow blade. He turned around at mile post 109, having decided to return across Eagle Summit to the Montana Creek side instead of continuing to the control station or waiting out the storm where he was. While plowing snow on the return trip, Employee #1 allowed the Oshkosh to drift too close to the right edge of the road. It rolled over and slid 250 to 350 ft down the steep slope, coming to rest upside down. Employee #1 was trapped under the dash and died as a result of crushing injuries.