An asphalt overlay project on a 4-mile section of US-31 from Winston Road to M-20 in Oceana County, MI, which is a four-lane divided highway, began in April 2008 and was completed in September 2008. The project cost approximately $6.4 million.
"We trenched the shoulder areas and then we filled them with sand. We lengthened a couple of on-ramps and placed crack relief asphalt on the project. Then we placed a 2-inch lift of 4E10 asphalt over that and a 1-1/2-inch lift of 5E10 asphalt over the 4E10," Randy Misener, project manager for Rieth-Riley, said. Rieth-Riley was the prime contractor for the project. The beginning of the project included some concrete joint work.
"We had some concerns about the crack relief because it is larger stone and there is no sand in it, but with a few modifications to the plant, everything ran very well. The placement techniques took a little getting used to, but once we got going, it went better than we thought it would," Misener said.
The crack relief material is a 6A limestone with asphalt. "It is a large stone, coarse aggregate mix, which allows drainage," Misener said.
Materials on the project included approximately 6,100 tons of 4E1 shoulder leveling course; approximately 5,000 tons of 5E1 shoulder top course; just over 27,000 tons of 4E10 main line leveling course; approximately 13,000 tons of 5E10 main line wear course; and approximately 38,000 tons of crack relief asphalt.
Subcontractors on the project included D. J. McQuestion & Sons, Inc., of LeRoy, MI (dirt work and drainage structure improvements), and Kelcris (concrete work).
Misener explained that the company evaluates what it needs for a project based on the level of production it wants to achieve and the way the owner, in this case the Michigan Department of Transportation, has the project staging laid out.