I-15 MP 37-44


Western Rock Products

Project Type




Southern Utah

Owner: Utah Department of Transportation
General Contractor: Western Rock Products
Start Date: June 3, 2019
Completion Date: November 5, 2020
Subcontractors or Key Contractors: Iron Ridge Survey (Survey);   Harward & Rees (dirtwork and pipework);  Gerber Construction (Bridges); Rowser Construction (Guardrail); American Traffic Services (Traffic Control); Straight Stripe (Striping and signs); Taylor Made Fencing (Fencing);  Triple B Concrete (Cast in place barrier walls).

Materials Used and Quantities: 

  • Granular Borrow: 68,897 cubic yards
  • Untreated base course: 43426 cubic yards
  • HMA:  64,805.17 tons
  • SMA: 23,578 tons

On this project, the Western Rock Product team added a third lane to the northbound lanes from MP 37 to 44.  This included replacing the existing bridges and widening them to three lanes as well as asphalt milling and overlay on the existing lanes. The team shifted over the southbound lanes between MP 38 and 37.  This included all dirt work; culverts; drainage; fencing; and asphalt necessary to achieve this.


I want to thank Western Rock for doing an exemplary job on the I-15 Climbing Lane Project from MP 37 to 44 on I-15.  The project lasted two years and there were a lot of obstacles that had to be overcome due to the complexity of the project.  Western Rock was persistent in keeping track of the details and the project overall was a success.  Thank you.  If you have any questions regarding their performance please contact me at the number or email below.   

Tyrell R Wood, PE - Resident Engineer

Cedar City Region 4