This map shows real-time local traffic conditions; green means the traffic flow is normal, orange means it is slower than normal, and red and dark red indicates slow and stopped vehicles. Updating Caltrans reports for each highway are below the map click or tap on the highway signs to jump to the road you are interested in.
Is closed from 0.6 mi east of Lake Alpine to 7.2 mi west of the
Jct of SR 89 /Ebbetts Pass/ (Alpine Co) - Due to snow - Motorists are advised
to use an alternate route
Chains are required on all vehicles except 4-wheel-drive vehicles with snow
tires on all 4 wheels from Camp Connell (Calaveras Co) to the
Mt Reba Turnoff (Alpine Co)
Please research chain control locations as Caltrans is currently working to
update chain control descriptions for consistency with internet mapping, like
Google Maps & Mapquest
Is closed from Watmough Rd to the Jct of SR 121 (Sonoma Co) - Due to
flooding - Motorists are advised to use an alternate route
There is a dense fog advisory in effect from the Napa/Solano Co line to
the Jct of SR 24 (Napa Co) - Motorists are advised to drive with caution
1-way controlled traffic at various locations from 3.3 mi east to
5.6 mi east of the Jct of SR 49 /at Rich Gulch Ln/ (Calaveras Co) 24 hrs a
day 7 days a week thru 12/31/25 - Due to construction
No traffic restrictions are reported for this area.
[IN THE NORTHERN CALIFORNIA AREA]IS closed from Foresthill Rd to Union Pacific /in Auburn/ (Placer Co) 24
hrs a day 7 days a week thru 0600 hrs on 12/22/25 - Due to construction
- Motorists are advised to use an alternate route
Is closed to all tractor-semitrailer combinations from 2.4 mi north of
Nevada City /at Newton Rd/ (Nevada Co) to Sierraville (Sierra Co) - Due to
traction concerns
Chains are required on all vehicles except 4-wheel-drive vehicles with snow
tires on all 4 wheels from Seirra City to Yuba Pass Summit (Sierra Co)
Chains or snow tires are required from Yuba Pass Summit to Sattley
(Sierra Co)
Please research chain control locations as Caltrans is currently working to
update chain control descriptions for consistency with internet mapping, like
Google Maps & Mapquest
Chains are required on all vehicles except 4-wheel-drive vehicles with snow
tires on all 4 wheels from Twin Bridges to Meyers (El Dorado Co)
Please research chain control locations as Caltrans is currently working to
update chain control descriptions for consistency with internet mapping, like
Google Maps & Mapquest
No traffic restrictions are reported for this area.
No traffic restrictions are reported for this area.
A high wind advisory is in effect at the San Francisco-Oakland Bay Bridge
/in San Francisco/ (San Francisco,Alameda Co) - Travel is not recommended
for campers, trailers, or permit loads
Is closed all tractor-semitrailer combinations from Applegate (Placer Co)
to the Nevada State Line - Due to multiple spinouts - All tractor-semitrailer
combinations are advised to use an alternate route
**For Eastbound Traffic:
Chains are required on all vehicles except 4-wheel-drive vehicles with snow
tires on all 4 wheels from Nyack (Placer Co) to Hirschdale Rd /in Truckee/
(Nevada Co)
**For Westbound Traffic:
Chains are required on all vehicles except 4-wheel-drive vehicles with snow
tires on all 4 wheels from the Truckee (Nevada Co) to Nyack (Placer Co)
Please research chain control locations as Caltrans is currently working to
update chain control descriptions for consistency with internet mapping, like
Google Maps & Mapquest
No traffic restrictions are reported for this area.
Chains are required on all vehicles except 4-wheel-drive vehicles with snow
tires on all 4 wheels from Cook's Station (Amador Co) to 1 mi west of Woodfords (Alpine Co)
Please research chain control locations as Caltrans is currently working to
update chain control descriptions for consistency with internet mapping, like
Google Maps & Mapquest
No traffic restrictions are reported for this area.
[IN THE NORTHERN CALIFORNIA AREA]Is closed from 2.2 mi north to 4.7 mi north of the Jct of SR 32 (Butte Co)
- Due to flooding - Motorists are advised to use an alternate route
Is closed from 7.2 mi east of Strawberry (Tuolumne Co) to 5.8 mi west of
the Jct of US 395 (Mono Co) /Sonora Pass/ - For winter - Motorists are
advised to use an alternate route
Chains are required on all vehicles except 4-wheel-drive vehicles with snow
tires on all 4 wheels from 8.7 mi east to 13 mi east of Strawberry
(Tuolumne Co)
Chains or snow tires are required from 3.8 mi west of the Jct of US 395 to
the Jct of US 395 (Mono Co)
Please research chain control locations as Caltrans is currently working to
update chain control descriptions for consistency with internet mapping, like
Google Maps & Mapquest
For Yosemite Nat'l Park road information call 209-372-0200
Is closed at the Yosemite National Park Boundary (Tuolumne) to 3.5 mi west
of the North Jct of US 395 /Tioga Pass/ (Mono Co) - For the winter - Motorists
are advised to use an alternate route
Is closed from 5.2 mi east of the Jct of US 293 to 27.1 mi west of the
Jct of US 6 (Mono Co) - Due to snow - Motorists are advised to use an alternate
route
For Yosenite Nat'l Park road information call 209-372-0200
Roads Info Last Updated: Thursday, 25th of December 2025, 02:59:23 PM
