An $11-million reconstruction of an approximately 1.7-mile section of Interstate 475 in Genesee County began in April and was expected to be completed by mid-October. The project extended from north of Saginaw Road to the north junction of Interstate 75. The project included ramp work, drainage improvements and median crossover work. The road is two lanes in each direction.
“It was good that we were able to detour one direction at a time so that we had the entire roadway, northbound or southbound, available to us,” Armando V. Lopez Jr., delivery engineer for the Michigan Department of Transportation (MDOT), said. The road was reconstructed with asphalt.
An Echelon paving process was used on the project. This involved using two pavers side by side and staggered approximately 50 to 100 feet from each other on the main line paving. “This eliminates a center line joint,” Lopez said. MDOT requested that this process be used in order to eliminate the center line. This process could be used because the traffic was detoured and the entire road was available for construction.
The project included approximately 176,000 square yards of aggregate base; 55,000 tons of 2E10-2E3 base mix; 25,000 tons of 4E10-4E3 leveling course; and 15,000 tons of 5E3-5E10 top course.
The prime contractor was Ajax Paving Industries, of Troy. Dan's Excavating, Inc., of Shelby Township did the earthwork and pipe work for the project. n