Legacy Parkway is about to feel a whole lot busier in the middle. The Utah Department of Transportation (UDOT) is gearing up to widen the stretch between Farmington and the I‑215 interchange, sliding a third lane into the median in each direction and targeting completion by the end of 2026. Regulars on the route can expect daytime construction, traffic shifts and a noticeable uptick in dust and noise as crews work to prep the corridor for projected travel demand through 2050.
When and where
According to UDOT, construction could start as early as Monday, March 23, 2026, on Legacy Parkway between Farmington and I‑215. The agency plans to wrap up the project by the end of that same year.
Typical work hours are scheduled for 7 a.m. to 5 p.m., Monday through Friday. UDOT notes that crews may also work nights and weekends when needed, and all timelines are subject to change. The project page includes a public hotline and email so residents can ask questions or track construction updates.
What to expect during construction
Crews will build a third lane in both directions, tucking the new lanes into the median between the existing northbound and southbound travel lanes, according to KUTV. Drivers and nearby residents should plan on shoulder and median work, traffic shifts and more daytime noise, dust and vibration while the heavy equipment is out.
KUTV reports that UDOT has billed the upgrade as a “comprehensive effort to meet travel demand through 2050,” so the agency is clearly thinking long game, even if the short‑term experience will mean slower, tighter commutes.
Why it's happening
The expansion follows a State Environmental Study and months of planning focused on easing congestion on a key connector between Farmington and the Salt Lake Valley. Last fall, KSL reported that the project carried an estimated price tag of about $65 million and would mark the first major expansion of Legacy Parkway since it originally opened.
That price comes with tradeoffs. The Salt Lake Tribune noted that UDOT’s environmental review found the work could boost noise levels and vehicle emissions in some nearby neighborhoods. The agency has outlined mitigation steps in its study, but the findings have kept environmental concerns front and center for residents who live along the corridor and for advocates worried about the surrounding wetlands.
How to plan
For drivers, the practical takeaway is simple: expect lane shifts, slower traffic and occasional delays once construction kicks off. Commuters may want to tack on extra travel time or use alternate routes during the busiest hours to avoid getting stuck in bottlenecks near work zones.
UDOT lists a project hotline and email for construction alerts, detours and sign‑ups for email updates. The public information team can be reached at 385‑390‑0103 or by emailing [email protected]. Contractors expect most work to stay within daytime weekday hours to limit overnight disruptions, though some off‑hour activity is still on the table.
Where this fits in the bigger picture
The Legacy Parkway widening is one piece of a broader UDOT push across northern Utah to brace for rapid population and traffic growth. It joins projects such as the Shepard Lane interchange and the West Davis Corridor, part of a growing web of upgrades intended to keep drivers moving.
KSL and other outlets have pointed out that while these projects promise smoother commutes, they also revive long‑running debates over growth, wetlands and neighborhood impacts. As work ramps up, drivers will want to keep a close eye on UDOT’s early‑week updates for specifics on lane changes and any detours that might suddenly turn a quick hop into a slow crawl.
