UDOT Cottonwood Canyons Transportation
18 hrs ·
We don’t know about you but this last period of avalanche activity was something to remember (particularly 2/7/20). We’ve got some details and photos/videos to share that were taken over the last couple of days to give you a closer look at the activity along Little Cottonwood Canyon/S.R. 210.
48 avalanches impacted S.R. 210, with 21 road hits. There were 15 size 3 or larger avalanches, and 4 natural that crossed the closed road. A total of 4,850 feet of the road was impacted with a maximum slide debris depth of 15 feet, resulting in a 54 hour road closures.
Weather conditions (measured at Alta Guard as of 2/8/20 at 5am) were significant, with 41” of snow, 6.79” water, 16% average density. In other words, wet, heavy and upside down!
Big thank you to the Snowbird Ski & Summer Resort Public Safety and @AltaSkiArea snow safety and mountain operations, Utah DOT road and traffic operations, Unified Police Department of Greater Salt Lake, and the Town of Alta for the collaborative efforts. There are many factors that go into our decision making, and the support of all those teams made a huge difference in running safe, smooth operations, especially with such high avalanche danger.
And to those of you who were inter-lodged or stuck in the valley, we appreciate your patience and understanding!