Rocky Mountain Power crews hoped to complete initial repairs to dozens of downed electrical poles by late Tuesday afternoon, allowing southwest Salt Lake County's State Route 111 to reopen.
Microburst winds are suspected of snapping two poles Monday evening, triggering a domino-like effect that eventually damaged 41 wooden power poles in all. Transmission lines sagged onto the highway, closing it between the New Bingham Highway and 8200 South. The downed lines also dragged a metal pole supporting a traffic signal at the S.R. 111 intersection with New Bingham Highway to the ground, said John Gleason, spokesman for the Utah Department of Transportation.
A sensor recorded peak winds at 45 mph where the Mountain View Corridor meets Dannon Way, according to the National Weather Service in Salt Lake City. Another sensor near the Trans-Jordan Landfill recorded gusts of 42 mph. Neither are the kinds of gales that are supposed to bring down power poles.