This specification describes a heavy-duty dual-wheel tandem-axle or triple-axle fixed deck trailer with sloped rear (beavertail) and hydraulically actuated loading ramp. Tandem-axle or triple-axle requirement will be identified on the solicitation. A unit furnished to this specification shall be designed to transport various types of highway maintenance and construction equipment such as wheel loaders, steel wheel rollers, and motor-graders legally, at the capacity specified, on highway at road speeds up to 65 mph and off highway under conditions imposing more severe frame stresses. The completed unit, when fully loaded, shall distribute the tongue weight and axle weight over the frame to ensure structural integrity and without the unit experiencing failure or permanent sets in the frame or any component of the unit. A unit exhibiting fishtailing or other anomalies when towed empty or properly loaded will be rejected. A unit furnished to this specification shall meet or exceed the following requirements.