Eastbound SR-248 closes for transmission project near Park City

Drivers heading east on SR-248 were forced into a major slowdown this morning as the road closed between Woodbine and Snow Creek, with westbound traffic reduced to one lane and detours routed through Park Avenue, Deer Valley Drive and Bonanza. The shutdown hits commuters, school runs, delivery trucks and customer traffic into Park City just as the Park City School District spring break was meant to soften the blow.

The closure is part of the first phase of a Park City and Rocky Mountain Power transmission line undergrounding project that began April 7. Park City Municipal engineer John Robertson said crews are installing large conduits in the roadway that will eventually carry high-voltage transmission lines underground, and the road work is needed to connect the project to the substation behind Woodbine.

Robertson said the undergrounding is meant to move lines off Boot Hill, the Park City Cemetery area and Bonanza Park. The change will add space for cemetery plots, reduce wildfire risk and remove a 60-foot aerial restriction that has limited redevelopment options on Bonanza Park. UDOT says the project also removes transmission lines and towers from the view corridor in that stretch of town.

The timing matters because SR-248 is one of the main connectors into Park City, and the work is not a single-week interruption. After the eastbound closure ends, Robertson said traffic will shift to one lane in each direction on Kearns Boulevard from 7 a.m. to 4 p.m. from April 20 through May 15. After that, repaving and excavation will move to Woodbine Way, extending the construction footprint deeper into the neighborhood roads that feed the city core.

UDOT also says a separate SR-248 maintenance project will grind the road and add a new asphalt layer to repair surface damage, and more work is coming this summer on SR-248 from Kearns to Park Avenue. Add in the planned High Valley Transit bus rapid transit work on SR-224, expected to begin service in 2028, and the next several months will bring repeated delays across the Park City corridor. UDOT says the broader Summit County and Parleys Canyon corridor will see 12 projects over the next two years, including four miles of pavement replacement, eight bridge improvements or replacements, three intersection improvements and a new bus rapid transit system on SR-224.