I-80 Westbound

  • Location:

    Salt Lake City, Utah

  • Client:

    Utah Department of Transportation

  • Construction Value:


  • Delivery Method:

    Design Bid Build

  • Year Completed:


  • Specialties:


Features & Highlights

  • UDOT’s Top 10 projects of 2020
  • 3,600 cubic yards of concrete was repurposed, crushed and used to build the new auxiliary lane
  • Completed and opened six months ahead of schedule
  • Zero safety incidents
Project Overview

Tooele County is one of the fastest-growing counties in Utah. The project has significantly improved mobility and provides a smoother, safer continuous auxiliary lane for the 40,000-plus motorists who drive on it daily. The enhancements improve the traffic flow by adding a new exit-only lane on westbound I-80 and an auxiliary lane from the off-ramp of State Road 201 to the on-ramp of State Road 36. The new auxiliary lane connects the off ramp at SR-201 and the on ramp to SR-36 in one continuous lane, allowing for a safer, more efficient commute through this area.

The project team met a 2020 opening goal and completed the project six months ahead of schedule with zero rework, all during the height of the COVID-19 pandemic. This is a testament to the project team’s dedication to safety, quality and thorough activity planning.

The team relied on 3D modeling to save time, improve precision, and reduce waste. Additionally, through proactive planning, close subcontractor coordination, and partnership with the supplier to expedite long-lead materials needed for the project, Sundt’s team accelerated the schedule.

In an effort to ensure the integrity and longevity of the new roadway, the project removed unsuitable sections of the existing grade and replaced it with crushed concrete layers reinforced with geotextile high-strength fabric.

The project team also worked closely with local governments and organizations, including the Daughters of the Utah Pioneers, to move two historical Oregon Trail markers to a new site nearby when they were impacted by the closure of viewing areas along the westbound I-80.

UDOT’s vision for good health, better mobility, strong economy and connected communities are encapsulated by the I-80 project. Emergency services and daily commutes are no longer threatened by a traffic chokepoint, and these changes support the region’s growth.

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“Sundt delivered big on this compared to other projects I’ve been involved in. They have my respect for meeting and exceeding expectations from all fronts on this project. I hope to work with this entire team again in the future.”

– Utah Department of Transportation (UDOT) Project Manager Onah Le-Spradlin


awards & accolades

AGC Utah Chapter’s Highway Project of the Year for projects under $5 million

Utah Construction and Design Highway Project of the Year for projects under $10 million

Utah Department of Transportation 2020 Project of the Year