A 20-vehicle pileup on I-80 in Wyoming, caused by severe winter weather, led to a major shutdown and evacuations on March 11, 2026.

A 20-vehicle pileup on I-80 eastbound near mile marker 259 between Laramie and Sinclair, Wyoming, caused a major shutdown on March 11, 2026, prompting a rolling closure and helicopter evacuation of two injured people. Additional crashes occurred between mile markers 264 and 269. Harsh winter conditions—including slick roads, blowing snow, strong winds, and lingering ice—were cited as primary causes. Crews are clearing debris and inspecting bridges, with the interstate expected to reopen between 5 and 7 p.m. Officials urge drivers to slow down, increase following distances, and check WYDOT’s road reports before traveling.