Winter Driving Tips
- Chain Controls
- Chain Installation Chart
- Mountain Pass Closures
- Snow and Ice Control Program
- Department of Water Resources Snow Conditions
Related Links
- Truck Network Map
- Report a Maintenance Problem
- Other DOTs
- Traveler Information
- Traffic Videos
- Adopt-a-Highway
- Roadside Rest Areas
Road Information - Winter Driving Tips - Mountain Pass Closures
Before driving, check with the Caltrans Highway Information Network (CHIN) 800.427.7623
| Mountain Pass | Route | 2002/03 | 2003/04 | 2004/05 | 2005/06 | 2006/07 | 2007/08 |
|---|---|---|---|---|---|---|---|
| Ebbetts Pass | SR 4 | 12/3-5/22 | 11/28-4/30 | 10/29-5/26 | 11/28-5/25 | 12/11-5/10 | 12/10-5/09 |
| Monitor Pass | SR 89 | 12/13-3/28 | 11/17-4/09 | 11/25-4/26 | 12/05-4/27 | 12/11-3/16 | 12/21-4/09 |
| Lassen Loop | SR 89 | 11/7-6/20 | 11/12-5/27 | 10/29-6/02 | 11/08-7/06 | 11/13-5/18 | 12/21-5/15 |
| Sonora Pass | SR 108 | 11/06-5/22 | 11/10-5/06 | 10/17-5/25 | 12/05-5/25 | 11/16-5/11 | 12/10-5/08 |
| Tioga Pass | SR 120 | 11/15-5/31 | 11/06-5/14 | 10/17-6/24 | 11/29-6/17 | 11/27-5/11 | 12/21- |
| June Lake Loop | SR 158 | 12/14-3/28 | 12/11-3/26 | 11/26-4/22 | 12/19-4/25 | 12/06-4/25 | 12/21-4/04 |
| Mammoth Lakes | SR 203 | 11/07-6/13 | 10/31-6/10 | 10/21-06/28 | 11/08-6/23 | 11/27-5/18 | 11/27- |
| Lake Sabrina to Aspendell | SR 168 | 11/09 - 03/28 | 11/07-4/07 | 11/16-4/22 | 12/05-4/27 | 12/26-4/05 | 12/7-4/12 |