Each year at its Annual Meeting, Flexible Pavements of Ohio (FPO) recognizes projects that demonstrate exceptional quality in asphalt pavement construction. These awards represent a diverse spectrum of pavement types from Ohio's interstate system with some of the highest traffic volumes in the nation, to low volume rural roadways, to airport runways, and commercial facilities.
The ODOT District 2 project consisted of Gerken Paving milling 3 ½ inches of asphalt and replacing it with 1 ¾ inches of 19 mm intermediate course and 1 ½ inches of 9.5 mm surface course HMA. The project was the first to use the notched wedge joint specification in District 2. The notched wedge joint was staggered and binder was applied to the entire face of the joint prior to pulling up the adjacent lane in an attempt to provide for a stronger centerline joint. A 40-foot ski was utilized to maximize pavement smoothness and work was completed ahead of schedule. Gerken used 5,560 tons of 448, 19 mm mix and 4,700 tons of 448, 9.5 mm mix.