Here is the latest on the opening of Sierra Nevada roads and passes.

North state

Highway 89, Lassen Peak Highway: The road that runs north/south through Lassen Volcanic National Park, including past the staging area for Lassen Peak, is projected to open by Memorial Day weekend. The road is open from the park’s north entrance at Manzanita Lake for 10 miles to the Devastated Area and from the south entrance for 6 miles to Bumpass Hell.

Central Sierra

Highway 88: Open at Carson Pass near Kirkwood, east of Jackson.

Highway 89: Open at Monitor Pass east of Markleeville.

Highway 4: Opened Friday at Ebbetts Pass east of Arnold.

Highway 108: Opened last Thursday at Sonora Pass east of Sonora.

Highway 120: Snowplow operations are close to punching through at Tioga Pass in Yosemite National Park, with an average snow depth of 6 feet and 8 to 9 feet at the summit. Even if they succeed, four avalanche zones remain. There’s a 50-50 chance it’ll be open for the long weekend. Even if the highway is cleared, the park requires restrooms, drinking water and other infrastructure support be available before the highway opens.

Glacier Point Road, Yosemite: Clear and open, with all park services available, including shuttle buses from the valley.

Eastern Sierra

Highway 158: The June Lake Loop is open.

Highway 203: Snowplow operations at Minaret Summit, the access to Devils Postpile National Monument, project opening the pass by the first week of June. Opening by next weekend is unlikely.

Source, San Fransisco Cronicle

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