ForConstructionPros.com

With the “green” movement starting to build momentum in the asphalt industry as an environmentally sustainable approach to serving the road paving needs of this country, a Minnesota asphalt producer/contractor continues to promote that concept by incorporating waste roofing shingles into the hot mix it produces and places.

Bituminous Roadways Inc., based in Inver Grove Heights, MN, recently completed a 2.7-mile stretch of Trunk Highway 149 in Eagan, MN, using a mix design containing a low percentage of roofing shingles.

The project consisted of reconstructing an existing two-lane road into a four-lane divided highway with upgraded controlled intersections and an additional controlled intersection.

The City of Eagan, in partnership with the Minnesota Department of Transportation, wanted to improve traffic flow and increase safety along this project. The original project scope included approximately 105,000 cubic yards of common excavation, 63,000 tons of Class 6 aggregate base and 70,000 tons of bituminous pavement. Park Construction Co. of Hampton, MN served as the general contractor of the $9.1-million project, with Bituminous Roadways serving as the asphalt paving subcontractor. Bituminous’ portion of the project represented $3.4 million of the contract.

Some of the more notable benefits of the shingle mix design used on the 149 project included: