The California Department of Transportation (CAltrans) is alerting motorist that Interstate 80 (I-80) will be subject to nighttime closures from Tuesday, March 31 through Monday, November 30.  The closures will be in effect between 7 PM and 8 AM.  (10 AM on weekends) and may occur seven days a week.  Closure schedules may vary throughout the construction season.

There will be two separate detours during the closures.  During this construction period, closures will alternate between the east and the west bound directions:

  • Large trucks, buses and RVs will detour onto the Highway 20-49 corridor
  • Passenger vehicles will be detoured using Rollins Lake Road

Both detours will be clearly marked.  This schedule is subject to change due to inclement weather.

For more information including dates and times of closures, please visit

The east bound detour  is scheduled to start at the Rollins Lake exit near Colfax into Highway 174 and end at approximately Secret Town where it reenters I-80.  Trucks and RVs east bound will turn into Highway 49 at Auburn and then turn right into Highway 20 following it to Emigarnat gap where it will reenter I-80 at approximately Emigrant Gap.