9. U.S. 491 Newcomb
PROJECT COST: $18.3 Million
This reconstruction of 8.8 mi of U.S. Highway 491 south of Shiprock consists of upgrading the highway from two lanes to four. The work includes 399,000 cu yds of unclassified excavation, 9,300 cu yds of rock excavation, 102,000 cu yds of borrow, 97,300 tons of aggregate base course, 138,360 tons of SP-III asphalt paving and 4,800 tons of OGFC. Crews will also construct 7,700 linear ft of drainage culvert, 452 linear ft of 42-in. drilled shaft foundations, a 128-ft single-span prestressed concrete girder bridge, 6,000 ft of guardrail, 5,700 ft of fencing and guardrail plus seeding, traffic control, signs and striping.
Location: San Juan County, N.M.
Started: July 2009
Target Completion: December 2010
Owner: New Mexico Dept. of Transportation
General Contractor: Skanska USA Civil West Rocky Mountain District Inc.
Subcontractors: Hark Drilling, Inc.; Dynamic Rock Solutions, LLC; Vis-Com, Inc.; Qualcon, Inc.; Gary A. Crain, Inc.; Associated Concrete Cutting; Recon Inc.
