An Oakland-based construction company was announced as the lowest bidder to construct the Dorsey Interchange project at a Tuesday night meeting of the Grass Valley City Council. Following a thorough vetting of McGuire and Hester’s $15,191,873 low bid, the council voted Tuesday to authorize the mayor to award the contract for the project. In addition to constructing the new Highway 49 entrances and exits at Dorsey Drive, the project consists of widening for an additional lane on Dorsey Drive from Catherine Lane to Pampas Drive, realignment of Joerschke Drive and improvements on Dorsey from East Main Street to Pampas Drive …