As the managing partner of the PRC joint venture, Fluor facilitated the planning and decision-making that resulted in time and cost savings for UDOT. An aggressive 35-and-a-half-month schedule was developed, beginning in 2010. The schedule aimed for the new corridor to be in operation by the end of 2012. To stay on schedule, Fluor and our PRC partners mobilized nearly 2,000 professional and craft workers in just the first six months of the project.

The design phase of the $1.1 billion project laid out an ambitious agenda for such a short time period: more than 200 lane-miles of general purpose lanes; 42.5 lane-miles of new express lanes; seven new interchanges; four modified interchanges; ramp modifications; new auxiliary lanes; and new concrete pavement along the entire corridor (except the last 2-mile transition on the south end) that will last 40 years. In addition, 63 bridges along the corridor were restored or replaced.

Designers strove for high design quality across the project. Forty-year concrete pavement design was employed to maximize the renovation's durability over time. An additional lane in each direction of the interstate was provided during construction to minimize delays. Another novel design feature of I-15 CORE was a phasing process that allowed for I-15 to keep all its existing lanes in service even as construction work went on.

PRC also used accelerated bridge construction (ABC) to expedite the schedule. Under the ABC method, four bridges were constructed on the side of I-15. These bridges are as heavy as 3.8 million tons and as long as a football field, including end zones. With the use of a remote-controlled, self-propelled modular transporter, the bridges were moved into place overnight, allowing for full freeway closure without impacting the safety or travel times of motorists using the interstate.