An outdoor mobile loading dock having a frame and a planar ramp member. The frame including two opposing side rails and support beams, the support beams having a first end and a second end, the first end secured to one of the opposing side rails and the second end secured to the second opposing side rail. The planar ramp member having a lower end and an upper end, the upper end including an upper edge having a lip and an upper ramp portion adjacent the upper edge. The upper ramp member being substantially parallel to the ground and having an open-grate section to facilitate drainage of water through the open-grate section to the ground below, thereby improving vehicle mobility and traction on the planar ramp member.