Abstract: At approximately 5:00 p.m. on May 19, 1994, employees were working on the reconstruction of a city street. An employee was operating a Case 450C bulldozer to level crushed stone to the proper grade. Employee #1 was checking the grade for proper height by kneeling down in the approximate center of the street and using a ruler and lock level. The bulldozer operator was backgrading the crushed stone with a blade and was backing the bulldozer. The bulldozer backed over Employee #1. He suffered a fractured left ankle, lower left leg, and left hand. The bulldozer was not equipped with a reverse signal alarm or any other warning devices and did not have an obstructed rear view.