An upgrade of an approximately 1-1/2-mile section of 12 Mile Road between Gratiot and Harper in Roseville and St. Clair Shores includes milling off the existing asphalt down to a concrete surface, doing concrete repairs and joint repairs, and then placing two lifts of asphalt. Cadillac Asphalt, of Clarkston, is the prime contractor for the project. The approximately $1.3-million project began in April and it will be completed in July.
Miller Brothers Construction, of Archbold, Ohio, is a subcontractor doing the milling work. Approximately 46,000 square yards of asphalt is being milled off on the project. Most of the road is four lanes; however, the road widens to five lanes at the major intersections.
Miller Brothers has been milling the outside lanes first. Then the traffic is switched from the two center lanes to the two outside lanes and the two center lanes are milled.
Miller Brothers Construction used a Wirtgen milling machine on the project. "These cold milling machines are designed to do deep pavement removal and surface planing," Bob White, operations manager for Miller Brothers Construction, said.
"You want to start on the curb lane side, because that is the controlling grade with the curb and gutter," Julie Snurka, area manager for Cadillac Asphalt, said.
Snurka said that they expect to be placing 3 inches of asphalt; however, some areas will be somewhat thicker, depending on how much is milled off. Approximately 8,400 tons of asphalt will be placed on the project. A 5E3 mix will be used for the leveling and wear courses.
Other subcontractors include Cipparrone Contracting, of Southfield (concrete repairs); Fort Wayne Construction, of Detroit (structure adjustments); G. M. & Sons, of Whitmore Lake (concrete curb); and P. K. Contracting, of Troy (striping).