US Highway 14A serves as a travel corridor between Lead, Deadwood and Sturgis in South Dakota. The rolling mountain terrain is frequented by tourists and attracts heavy motorcycle traffic during the annual Sturgis Bike Rally. Motorists experience steep inclines and sharp curves as they travel through the Black Hills National Forest. RAM Construction Services was contracted to install High Friction Surface Treatments at two locations along the highway on asphalt pavement.
One location had existing centerline rumble strips which the Department of Transportation wanted to preserve. Upon inspection of the site, yellow pavement markings were observed in the rumble strips from years of reapplication of the paint. The Department of Transportation turned to RAM Construction Services to propose a way to remove the pavement markings in the rumble strips and then coat them with the High Friction Surface Treatment. RAM Construction Services removed them by shot blasting and then detailed every depression with rollers and brushes over the 1,700 lineal feet. The project was completed using approximately 3,300 gallons of epoxy binder and 95 tons of calcined bauxite, an extremely hard aggregate resistant to abrasion with high friction coefficients, to complete a total surface area of 95,000 sq. ft. RAM Construction Services received a bonus incentive for expediting the construction schedule and complete the project a year ahead of the Department of Transportation competition date.