Interstate 15 Widening 500 North to Interstate 215 Submitted by Kiewit/Clyde JV This design-build project included the design, reconstruction and widening of the mainline Interstate 15 to add an express lane and three general-purpose lanes in each direction.
Structural work included replacement of bridges at Beck Street’s I-15 overpass and southbound U.S. 89 overpass and demolition of two bridges to be replaced by a new bridge at 1100 North. Additional project components included earthwork, retaining walls, storm drainage, signing, lighting, barriers, ATMS infrastructure and utilities.