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Posted by: Sandy Steinman | May 11, 2011

Sierra Nevada Mountain Pass and Road Updates

Updated 5/19/11

Check New Posting:  Sierra Nevada Mountain Pass and Road Updates 5/19/11

Which mountain passes and roads are open, which are closed and when might they open

California Department of  Transportation reports as of  5/11/11 at 8:30 AM:

  • Yuba Pass (49)  NO TRAFFIC RESTRICTIONS ARE REPORTED FOR THIS AREA.
  • Donner Pass (I-80)  [IN NORTHERN CALIFORNIA & THE SIERRA NEVADA]
    THE EASTBOUND CONNECTOR TO NORTHBOUND & SOUTHBOUND I 5 /IN SACRAMENTO/
    (SACRAMENTO CO) IS CLOSED FROM 0001 HRS TO 0500 HRS 7 DAYS A WEEK THRU 7/24/11
    – DUE TO MAINTENANCE – A DETOUR IS AVAILABLE
  • Highway 50:     WILL BE CLOSED FROM 17 MI EAST OF KYBURZ TO THE SOUTH JCT OF SR 89
    (EL DORADO CO) 24 HRS A DAY FROM 0001 HRS ON 5/11/11 THRU 0001 HRS ON 5/24/11
    – DUE TO CONSTRUCTION – A DETOUR WILL BE AVAILABLE   FOR ADDITIONAL INFORMATION, PLEASE VISIT, WWW.WAY2TAHOE.COM
  • Carson Pass (88)  NO TRAFFIC RESTRICTIONS ARE REPORTED FOR THIS AREA.
  • Ebbets Pass (4) IS CLOSED FROM THE EAST END OF ALPINE LAKE /MT REBA TURNOFF/ TO THE
    JCT OF SR 89 /EBBETTS PASS/ (ALPINE CO) – FOR THE WINTER
  • Monitor Pass (89) NO TRAFFIC RESTRICTIONS ARE REPORTED FOR THIS AREA.
  • Sonora Pass (108) IS CLOSED FROM 26.4 MI EAST OF STRAWBERRY TO 5.3 MI WEST OF THE
    JCT OF US 395 /SONORA PASS/ (TUOLUMNE,MONO CO) – FOR THE WINTER
  • Tioga Pass (120) IS CLOSED FROM CRANE FLAT TO 5 MI WEST OF THE JCT OF US 395 /TIOGA PASS/
    (TUOLUMNE, MONO CO) – FOR THE WINTER
  • Lassen Park (89)  IS CLOSED FROM THE LASSEN VOLCANIC NAT’L PARK SOUTH BDRY TO THE
    JCT OF SR 44 /LASSEN LOOP/ (TEHAMA, SHASTA CO)

Yosemite Tioga and Glacier Point Roads Plowing Update:

“There is no estimated opening date for the Tioga or Glacier Point Roads.
(View a list of opening dates from previous years.)

Last Update: May 9, 2011

Tioga Road: Rotary plows have reached the Siesta Lake area just past the 8,000 foot elevation mark. Snow depths average 10 feet in depth. Charcoal has been spread over Olmsted Point to aid the melting of the snow above the road. Crews will work Monday through Saturday.

Glacier Point Road: Dozers have plowed off enough snow that the rotary blowers are to Washburn Point. Work will continue Monday through Thursday working down through the switchbacks to the parking lot. Average snow depth is still eight feet.

Mariposa Grove: The road is open; all weight restrictions have been removed.”

Tom Stienstra had the following predictions on his blog this past Monday

“Highway outlook: The best guess is that Highway 108 at Sonora Pass and Highway 4 at Ebbetts Pass will be cleared and open for Memorial Day weekend, reported Michele Demetras of Caltrans. Glacier Point and Tioga Pass in Yosemite probably will remain closed, according to park rangers. Lassen Park Highway (Highway 89) will definitely be closed. Highway 50 will be closed Wednesday through May 24 for slide repairs, then will have controlled traffic after that for several weeks.”

To get the most up-to-date reports on road conditions go to the Caltrans site:  http://www.dot.ca.gov/cgi-bin/roads.cgi

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