Abstract: An apparatus for cleaning bridges or other elevated structures includes a base element and an upper element that is vertically movable with respect to the base element. The upper element supports workmen for cleaning the structure. The floor of the upper element is made of a grid or grating such that debris falls through the floor and is collected in the base element. The base forms a collection hopper and includes a conveyor running along the center for carrying the debris to one end of the base for discharge of the debris. Hydraulic cylinders control the vertical position of the upper element so that the upper element may be placed at the desired elevation. The base element includes wheels and a hitch for allowing the apparatus to be towed on the highway to the structure to be cleaned or repaired.