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Utah Construction News
Friday, November 6, 2026
The state picks a new operator for the old US Magnesium site on the Great Salt Lake, and crews have a busy weekend of closures on I-15 projects from Riverdale to Lehi.
Clear skies across northern Utah. Salt Lake City 55°/34°, Ogden 55°/35°, Logan 54°/31°. A good day for outdoor work, with cold mornings.
Mining & Resources
Tooele County · November 5, 2026
Utah taps Mariana Minerals to restart US Magnesium site
The Utah Division of Forestry, Fire and State Lands has picked Texas-based Mariana Minerals to lead a phased restart of lithium and magnesium extraction at the former US Magnesium site in Tooele County. The state bought the site for $30 million.
The plan replaces solar evaporation ponds with low-water processing, and the royalties could help pay for Superfund cleanup. Mariana already runs Copper One in San Juan County.
At a glance: Operator: Mariana Minerals; Site purchase: $30 million; Focus: lithium and magnesium, low-water processing
Sources: Utah Department of Natural Resources (https://naturalresources.utah.gov/dnr-newsfeed/state-of-utah-selects-mariana-minerals-to-modernize-former-us-magnesium-facility/) · KSL (https://www.ksl.com/article/51644053/utah-picks-new-mineral-contractor-for-us-magnesium-site-calls-it-a-significant-win)
Utah Projects
UDOT · November 5, 2026
Weekend closures: new Riverdale bridge slides in, 2100 North sewer work
UDOT will close the southbound I-15 to eastbound I-84 ramp in Riverdale from Friday night to Monday morning while crews slide the second half of a new bridge into place.
In Lehi, the 2100 North freeway project has nightly westbound closures this weekend for a sewer line replacement. That project is the 2.8-mile link between I-15 and Mountain View Corridor, due to finish in late 2028. Southbound I-15 between Kaysville and Farmington also closes overnight Friday for Shepard Lane interchange work.
Source: UDOT (https://connect.udot.utah.gov/2026/11/05/udot-announces-lane-and-ramp-closures-in-davis-weber-utah-county/)
Summit County · November 5, 2026
Summit County e-bus system halfway built
Crews are about halfway through building Summit County’s new electric bus system on SR-224, the Bobsled Express, which will run between Kimball Junction and Old Town Park City.
Source: KSL (https://www.ksl.com/article/51643814/crews-halfway-through-construction-on-summit-countys-new-e-bus-system)