The purpose of these specifications is to describe a “Paver Style” 50-ton, three-axle, drop-deck, low-bed semi-trailer to be used in hauling paver type construction machinery, with wet lined equipped department truck tractor. The trailer will be rated for a capacity load of 50 U.S. tons in 1/2 of the deck length at highway speeds of 70 MPH. It shall be equipped with a self-lifting (non-ground bearing) hydraulic detachable gooseneck so equipment can be loaded over the front of the deck. Tapered main beams shall be provided to permit the entire taper to be lowered as flush to the ground as possible. The gooseneck beam hooks and other components on the trailer portion must be flush to the slope front in order to facilitate the loading of rollers, and "all" Department equipment with a limited and reasonable amount of blocking/center ramping. The trailer must be new, including all component parts.