Seasonal closure · SR-89 · California
Park road. Closed for snow about November to June. Below: what the Caltrans QuickMap feed is posting for SR-89 right now, and the dates the National Park Service gives, quoted from its own page. This is a park road inside Lassen Volcanic National Park. The Park Service runs it, and the state feed may not carry its gate.
“During the snowy season (approximately November – June), park roads are closed and/or impassible due to heavy snowfall.”
Source: www.nps.gov/lavo/planyourvisit/gettingaround.htm, read October 15, 2026.
California's DOT traveler site. The list of record for closures, restrictions and detours.
Park roadThe Park Service decides when this road closes and reopens. Its page carries the current status.
Winter roundupEvery seasonal closure MileCheck lists for California, with the dates each agency gives.
Road conditionsEvery closure and crash Caltrans QuickMap is posting, on one map with the mile marker.
CamerasEvery Caltrans QuickMap camera on one map, with the route and mile marker where the DOT gives one.
Snow season, approximately November That is what the National Park Service publishes, read October 15, 2026. The gate goes in when the snow does, so the date moves from year to year. No 2026-27 dates were posted on the source page when it was read.
Snow season runs to approximately June Plowing and avalanche work set the day, and the agency announces it when the road is ready.
30-mile stretch of Highway 89 running north-south through Lassen Volcanic NP. The rest of SR-89 is handled like any other road in California.
Caltrans QuickMap is the official source for the state highway, and the Park Service page for Lassen Volcanic National Park carries the park road's status. The block at the top of this page reads the same Caltrans QuickMap feed every five minutes and lists what is posted for SR-89. If the feed cannot be reached, the page says so instead of showing an empty list.
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