It is the intent and purpose of these specifications to describe a vehicle to provide underbridge inspection by making it possible to position three (3) workmen and their tools approximately 61-9”' horizontally under a bridge, extend 47' above and extended down approximately 65' below the bridge surface to perform inspection of areas under the bridge as directed in the performance section of these specifications. With the work bucket completely extended, the truck can be driven slowly forward or backward to provide continuous or overlapping areas of coverage. The vehicle must operate within 102” of the traffic lane so that lane closures are kept to a minimum.Unit bid shall be currently produced with all the latest standard features whether or not called for in these specifications. Purpose: The vehicle shall be an underbridge inspection vehicle and will include a truck chassis, flatbed body, aerial device, and any necessary equipment, components, accessories, or options required to furnish a complete unit ready for operation. The aerial unit shall be truck-mounted, hydraulic-powered with four (4) articulating boom sections, two telescoping sections, two rotation turrets, and a maneuverable three-man, 700-pound capacity rotating aluminum platform with fully proportional controls. The construction and stability of the completed unit shall conform to all current ANSI 92.20 regulations.
