A 60-40 joint venture of Granite Construction Inc. and Ralph L. Wadsworth Construction Co. LLC has won a $348-million progressive design-build contract to upgrade a stretch of U.S. 89 in Utah.
When the Utah Dept. of Transportation launched, in 2000, its $1.5-billion project to widen Interstate 15 through Salt Lake City, the agency opted for a delivery method called design-build, which was relatively rare at the time.
