A 3 foot high concrete curb median barrier on North Carolina's Interstate Highway I-40 serves as a separation of opposite bound traffic and as a backstop to keep one 2 lane section free for tumbling boulders. The highway winds along the Pigeon River from the Tennessee state line to Cove Creek through one of the most picturesque but rugged- routes in the southeastern United States. The concrete was mixed at a plant of Fines Creek and then hauled some 7 miles to the job site. The concrete is placed into steel forms that are 10 feet long and anchored to the roadbed by steel rods 2 and one-half feet long. In order to maintain the correct temperature for the curing process during cold weather, the barrier was covered with thick, foam rubber blankets that remained in position until the freshly placed concrete had hardened sufficiently to withstand below freezing temperatures. Once the concrete is placed, it must undergo at least two rubbings until it is white and its surface is as smooth as the finest marble. Plastic covered huts, 6 feet square, were erected along the project during winter operations to protect workers from the severe weather, and to maintain proper rubbing conditions. The huts were moved from place to place as the work progressed, and the temperature inside was kept warm enough so that the workers could do their job without heavy clothing.