Abstract: A dump trailer comprising an open bed having first and second side walls for partially forming a cargo area to receive construction material and a rear opening for emptying the construction material from the cargo area. A tailgate is provided for covering the rear opening during transport. First and second arms are pivotably coupled to the respective first and second side walls and joined to the tailgate for moving the tailgate between a first position for covering the rear opening and a second position free of the rear opening. Each of the first and second arms are in a position below a top surface of the respective side wall or flush with the top surface when the tailgate is in the first position for facilitating loading of the construction material into the cargo area of the open bed.

Abstract: A dump trailer comprising a goose neck adapted for removable coupling to a tractor unit and a dropped frame joined to the goose neck and extending rearwardly of the goose neck. A plurality of trailer wheel and axle assemblies are joined to the bottom of the rear of the dropped frame. Each of the plurality of trailer wheel and axle assemblies has left and right wheels suitable for highway travel. An open bed is joined to the top of the dropped frame for receiving cargo. The open bed extends below the goose neck and has a front and a rear opening for permitting discharge of the cargo from the open bed.

Abstract: A dump trailer comprising a goose neck adapted for removable coupling to a tractor unit and a dropped frame joined to the goose neck and extending rearwardly of the goose neck. A plurality of trailer wheel and axle assemblies are joined to the bottom of the rear of the dropped frame. Each of the plurality of trailer wheel and axle assemblies has left and right wheels suitable for highway travel. An open bed is joined to the top of the dropped frame for receiving cargo. The open bed extends below the goose neck and has a front and a rear opening for permitting discharge of the cargo from the open bed.