Sanding operations in progress after snow removal, Newfound Gap, TennesseeGreat Smoky Mountains National ParkWhen the storm abates and the plows finish clearing the roadway, the surface must be made safe for all traffic. Sanding appears simple, but a high degree of judgment is necessary to determine the proper mix to apply to the road. When the surface is soft, gravel (1/2-inch maximum size) is most effective. On ice, gravel is useless, but sand provides traction. When the road cover is melting, gravel must be used because sand washes away. Calcium and sodium chloride are mixed in varying degrees with the aggregate. In cold weather, the percentage of calcium chloride is increased, and in warmer weather, calcium choloride is not needed. Obviously, sanding isn't as simple as it looks... Sand truck.Snow Removal; February 1964 Monthly Report, II-R-SR-7898, Physical Facilities - Roads - Snow Removal Operations
Parking area of visitors using facilities of horse concession, Horse barn in center background, Gatlinburg, TennesseeGreat Smoky Mountains National ParkWork Order No. R-18 GRSM. Completion report photo. Parking area in use by park visitors using facilities of horse concession. Horse barn in center background.Two-Mile Branch Horse Concession; Roads, parking area, and trails, II-HC-2Mi-7235, Physical Facilities - Horse Concession Facilities - Two Mile Branch Stables