I-15 Utah County Expansion

The I-15 Corridor Expansion (I-15 CORE) is the largest freeway construction project in the state of Utah with the fastest construction schedule for a billion-dollar public highway project in United States history. Built by Provo River Constructors (PRC), a joint venture made up of Wadsworth Brothers Construction, Fluor Corporation, Ames Construction, and Ralph L. Wadsworth Construction, PRC worked closely with its own partners as well as with the Utah Department of Transportation to ensure success.

In an unprecedented 35 months, PRC widened and reconstructed 24 miles of road using PCCP Pavement over an asphalt base, rebuilt and reconfigured 10 freeway interchanges, and replaced 63 aging bridges. PRC’s ambitious schedule comprised almost 2,000 employees and 57 sub-contractors in order to finish I-15 CORE in less than 3 years. More than 90 percent of employees and sub-contractors were local residents building a part in Utah’s infrastructure.


Provo River Contractors

Completion Date

November 2012


Utah County, UT


2014 – OCEA-Outstanding Civil Engineering Achievement Finalist
ASCE-American Society of Civil Engineers

2013 – Top 10 Projects of 2013
IRWA-International Right-of-Way Association

2013 – Roadway Work Zone Safety Awareness Award
TDF-Transportation Development Foundation (ARTBA-American Road & Transportation Builders Association)

2013 – National Design-Build Award-Transportation
DBIA-Design-Build Institute of America

2013 – John L Martin Partnered Project of the Year-Diamond Level
IPI-International Partnering Institute

2013 – Grand Prize-America’s Transportation Awards
AASHTO-American Association of State Highway and Transportation Officials

2013 – Gold Winner-Divided Highways (Urban)
ACPA-American Concrete Pavement Association

2013 – Excellence in Concrete-Public Works
ACI Intermountain-American Concrete Institute

2013 – Excellence in Concrete-Highways
ACI Intermountain-American Concrete Institute

2013 – Best Use of Innovation -Large Project
WASHTO-Western Association of State Highway and Transportation Officials

2013 – Best of 2013-Highways/Bridges
ENR Mountain States

2012 – Transportation Project of the Year
AGC Utah-Associated General Contractors

2012 – Top 10 Roads of 2012
Roads and Bridges Magazine

2012 – Steel Bridge Competition-Special Commendation
National Steel Bridge Alliance

2012 – Honor Award-Transportation
ACEC Utah-American Council of Engineering Companies

2012 – Best Portland Cement Concrete Pavement Urban Divided Highway Project
ACPA Utah-American Concrete Pavement Association

2010 – Project Achievement Award
American Concrete Pipe Association

2006 – Award of Excellence
UDOT-Utah Department of Transportation