Abstract: A noise barrier fence includes vertical eye section steel upright posts each presenting open channels facing along the length of the fence, horizontal rails located in these open channels and vertical boards fastened to the horizontals, the boards being butted side by side with the joints covered by small overlapping cover strips. The vertical boards also fit into the channels of the upright posts and their upper and lower ends are sandwiched between pairs of horizontal boards at the top and bottom of the fence. The construction is readily adapted to sloping ground and effectively closes all gaps through the fence.