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.
Mountain Road Report
Highway 4
Is closed from 0.7 mi east of Lake Alpine to 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 0.5 mi east of 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
Highway 12
1-way controlled traffic at various locations from Greene St to Maple Ave
/in Kenwood/ (Sonoma Co) from 2100 hrs each night to 0600 hrs each morning
Monday thru Friday thru 10/17/25 - Due to construction
1-way controlled traffic at various locations from Arnold Dr to Babb Lane
/in Oakmont/ (Sonoma Co) from 2100 hrs each night to 0500 hrs each morning
Monday thru Friday thru 10/17/25 - Due to construction
Highway 26
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
Highway 49
No traffic restrictions are reported for this area.
[IN THE NORTHERN CALIFORNIA AREA]Is closed to southbound traffic 3.3 mi south of the Placer/Nevada Co line
/at South Fork Dry Creek/ (Placer Co) 24 hrs a day 7 days a week thru 1700 hrs
on 10/31/25 - Due to construction - Motorists are advised to use an alternate
route
Is closed to northbound traffic 3.9 mi north of the Jct of I 80
/at Shale Ridge Rd/ (Placer Co) 24 hrs a day 7 days a week thru 1700 hrs
on 10/31/25 - Due to construction - Motorists are advised to use an alternate
route
Highway 50
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.
Highway 59
No traffic restrictions are reported for this area.
Highway 80
No traffic restrictions are reported for this area.
[IN THE NORTHERN CALIFORNIA AREA & SIERRA NEVADA]**For Eastbound Traffic:
Chains are required on all vehicles except 4-wheel-drive vehicles with snow
tires on all 4 wheels from Cisco (Placer Co) to 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 Donner Lake Interchange (Nevada Co) to
4.7 mi west of Kingvale (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
All westbound trucks are required to stop at the brake check area
0.5 mi west of Nyack (Placer Co) - To reduced the risk of brake fires
No traffic restrictions are reported for this area.
Highway 88
Chains are required on all vehicles except 4-wheel-drive vehicles with snow
tires on all 4 wheels from Ham's Station (Amador Co) to Picketts Jct (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
Highway 99
No traffic restrictions are reported for this area.
[IN THE NORTHERN CALIFORNIA AREA]No traffic restrictions are reported for this area.
Highway 108
Is closed from the 26.4 mi east of Strawberry (Tuolumne Co) to 5.6 mi west
of the Jct of US 395 (Mono Co) /Sonora Pass/ - Due to snow - Motorists are
advised to use an alternate route
Chains or snow tires are required from Strawberry to 26.4 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
Highway 120
Is closed from Yosemite National Park Boundary (Tuolumne Co) to 3.5 mi west
of the North Jct of US 395 /Tioga Pass/ (Mono Co) - Due to snow - Motorists are
advised to use an alternate route
For Yosenite Nat'l Park road information call 209-372-0200
Local Traffic New
Events
Calaveras Master Gardeners Demonstration Garden | 9:00 am - 1:00 pm
American Red Cross Blood Drive
The Church of Jesus Christ of Latter-Day Saints | 9:00 am - 2:00 pm
From Nowhere: Hispanic Heritage Month Movie
Columbia College | 2:00 pm
Calaveras Fairgrounds | 10:00 am - 4:00 pm
Tales of the Roundhouse
Railtown 1897 State Historic Park | 6:30 pm - 9:30 pm
Mind Over Matter
Tuolumne County Enrichment Center | 11:00 am - 2:00 pm
Calaveras Fairgrounds | 10:00 am - 4:00 pm
Railtown 1897 Weekend Excursion Trains
Railtown 1897 State Historic Park | 10:30 am - 4:00 pm
Glenn Bass Run
Wildcat Ranch | 8:00 am - 9:30 am
Murphys Community Park | 9:00 am - 1:00 pm
CAST Fall Festival
The Armory | 1:00 pm - 3:00 pm
Sonora Bach Festival Local's Concert
Chapel in the Pines | 3:00 pm