Road Information - Winter Driving Tips - Mountain Pass Closures
Before driving, check with the Caltrans Highway Information Network (CHIN) 800.427.7623
| Mountain Pass | Route | 2007/08 | 2008/09 | 2009/10 | 2010/11 | 2011/12 | 2012/13 |
|---|---|---|---|---|---|---|---|
| Ebbetts Pass | SR 4 | 12/10 - 5/09 | 12/15 - 5/08 | 12/03 - 5/28 | 11/22 - 6/07 | 01/25 - 5/11 | 12/17 - 4/25 |
| Monitor Pass | SR 89 | 12/21 - 4/09 | 12/15 - 4/17 | 12/28 - 4/14 | 12/15 - 4/29 | 01/25 - 4/16 | 12/18 - 4/10 |
| Lassen Loop | SR 89 | 12/21 - 5/15 | 12/22 - 6/04 | 11/18 - 7/08 | 110/8 - 7/18 | 11/23 - 6/01 | 11/29 - |
| Sonora Pass | SR 108 | 12/10 - 5/08 | 12/14 - 5/14 | 12/01 - 5/28 | 11/22 - 5/27 | 01/21 - 5/04 | 12/19 - 4/24 |
| Tioga Pass | SR 120 | 12/21 - 5/20 | 12/17 - 5/19 | 12/01 - 6/05 | 12/15 - 6/18 | 01/25 - 5/07 | 12/19 - 5/11 |
| June Lake Loop | SR 158 | 12/21 - 4/04 | 12/23 - 4/20 | 12/23 - 4/16 | 12/15 - 4/18 | 01/15 - 3/13 | |
| Mammoth Lakes | SR 203 | 11/27 - 5/29 | 10/31 - 6/08 | 10/15 - 6/24 | 11/09 - 6/27 | 11/04 - 5/30 | 11/10 - 5/22 |
| Lake Sabrina to Aspendell | SR 168 | 12/07 - 4/12 | 11/26 - 4/20 | 12/09 - 4/22 | 12/15 - 4/29 | 11/22 - 4/16 | 01/15 - 4/15 |
Historical mountain pass closure dates are available HERE.