Specifications include, but are not limited to: This specification describes a multiple purpose excavating and grading machine equipped with a hydraulic telescoping boom and mounted on a 4 x 2 pneumatic-tired, truck carrier. The machine shall dig, lift and dump in accordance with the requirements of the specification. Units furnished to this specification shall meet or exceed the following requirements. EXAMPLES: Gradall Model D152 or TxDOT approved equal TRUCK CARRIER: Shall be mounted on a heavy-duty, 4 x 2 truck carrier. Truck carrier frame shall be all steel welded construction as normally furnished by manufacturer. Gross vehicle weight rating, minimum 33,000. Front axle gross weight rating, minimum 12,000 pounds. Rear axle gross weight rating, minimum 23,000 pounds. Wheelbase shall be a minimum 190 inches.