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 1 mi east of Camp Connell (Calaveras Co) - Due to snow
- Motorists are advised to use an alternate route
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) - For the 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 Arnold to the Mt Reba turnoff (Calaveras 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.
1-way controlled traffic at the Contra Costa/San Joaquin Co Line
/at Old River Bridge/ 24 hrs a day 7 days a week thru 1900 hrs on 7/26/26
- Due to construction
Highway 12
Is closed from Waterman Ave /in Boyes Hot Springs/ to the Jct of SR 121
(Sonoma Co) - Due to flooding - Motorists are advised to use an alternate route
Highway 26
Chains are required on all vehicles except 4-wheel-drive vehicles with snow
tires on all 4 wheels from 6.5 mi east of Mokelumne Hill (Calaveras Co) to
the Jct of SR 88 (Amador 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 49
Chains are required on all vehicles except 4-wheel-drive vehicles with snow
tires on all 4 wheels from 6.5 mi north of Oakhurst (Madera Co) to
the Madera/Mariposa Co Line
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 3 mi north of Grass Valley /at Newton Rd/ (Nevada Co) to the
Jct of SR 89 (Sierra Co) - Due to snow - Motorists are advised to
use an alternate route - Local residents with proper identification will be
allowed access
Chains are required on all vehicles except 4-wheel-drive vehicles with snow
tires on all 4 wheels from 3.2 mi south of Grass Valley to Empire St
/in Grass Valley/ (Nevada Co)
Chains are required on all vehicles except 4-wheel-drive vehicles with snow
tires on all 4 wheels from from 4.2 mi south of Downieville to Sattley
(Sierra Co)
Chains are required on all vehicles except 4-wheel-drive vehicles with snow
tires on all 4 wheels from 3.5 mi north of Camtonville (Yuba Co) to Yuba Pass
Summit (Sierra Co)
Chains or snow tires are required from Sierraville (Sierra Co) to the
Sierra/Plumas Co Line
Chains are required on all vehicles except 4-wheel-drive vehicles with snow
tires on all 4 wheels from 7.3 mi south of Vinto to Vinton (Plumas 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 50
Is closed from Pointview Dr /in Placerville to Meyers (El Dorado Co)
- due to spinouts - 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 9 mi east of Placerville 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
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
There is a dense fog advisory in effect from Alamo Dr to Leisure Town Rd
/in Vacaville/ (Solano Co) - Motorists are advised to drive with caution
Is closed from Colfax (Placer Co) to the Nevada State Line - Due to snow
- Motorists are advised to use an alternate route
Is closed eastbound to all tractor-semitrailer combinations at Applegate
(Placer Co) - Due to snow & traction concerns
Chains are required on all vehicles except 4-wheel-drive vehicles with snow
tires on all 4 wheels from 3.4 mi east of Gold Run (Placer Co) to
the Nevada State Line
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
Is closed from Dew Drop (Amador Co) to 5 mi west of Picketts Jct
(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 9 mi east of Pine Grove (Amador Co) to 3.5 mi east
of Silver Lake (Amador Co)
Chains are required on all vehicles except 4-wheel-drive vehicles with snow
tires on all 4 wheels from 5 mi west of Picketts Jct (Alpine Co) to
3.5 mi east of Woodford (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 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 to 6 mi east of Sonora to 7.2 mi east of Strawberry
(Tuolumne Co)
Chains or snow tires are required from the Jct of US 395 to 3.8 mi
west of the Jct of US 395 (Mono Co)
Chains are required on all vehicles except 4-wheel-drive vehicles with snow
tires on all 4 wheels from 7 mi east of Long Barn to 7.2 mi east of Strawberry
(Tuolomne 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.
[YOSEMITE NAT'L PARK]
For Yosemite Nat'l Park road information call 209-372-0200
Highway 120
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 395 to 7.1 mi west of the
Jct of US 6 (Mono Co) - For the 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 2.5 mi west of Groveland to Yosemite Nat'l Park
Boundary (Tuolumne Co)
Chains are required on all vehicles except 4-wheel-drive vehicles with snow
tires on all 4 wheels from 3.8 mi west of the Jct of US 395 to the
Jct of US 395(Mono Co)
Chains are required on all vehicles except 4-wheel-drive vehicles with snow
tires on all 4 wheels from the Jct of US 395 to 5 mi east of the
Jct of US 395 (Mono Co)
Chains are required on all vehicles except 4-wheel-drive vehicles with snow
tires on all 4 wheels from 3.8 mi west of the Jct of US 6 to the Jct of US 6
(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
There is a dense fog advisory in effect from the Jct of I 5 to the
San Joaquin/Stanislaus Co line - Motorists are advised to drive with caution
For Yosenite Nat'l Park road information call 209-372-0200
Local Traffic New
Events
Jamestown Location | 5:00 pm - 7:00 pm
Ash Wednesday Taize service
The Red Church | 5:30 pm - 6:30 pm
Meeting/Event Cancellations
| 12:00 am
Willow Springs Cubhouse | 10:00 am - 12:00 pm
Calaveras Master Gardeners Open Garden Gate
Calaveras Master Gardeners Demonstration Garden | 11:00 am - 4:00 pm
2026 Job Fair Hetch Hetchy Water & Power
Hetch Hetchy Administration Building | 2:00 pm - 6:00 pm
Tuolumne Me-Wuk Indian Health Center Administration Building | 9:00 am - 2:00 pm
Ski with a Ranger
Dodge Ridge Mountain Resort | 10:00 am - 3:00 pm
Disney's Mary Poppins, The Broadway Musical
Bret Harte High School Theater | 2:00 pm - 7:00 pm
Applebee's Grill & Bar | 8:00 am - 10:00 am
Annual Seed Share
Saint Matthews Lutheren Church | 10:00 am - 3:00 pm
Don Pedro/Moccasin Point Fundraiser for Special Olympics
Moccasin Point Campground | 10:00 am - 2:00 pm
Tuolumne Veterans Hall | 3:00 pm
Disney's Mary Poppins, The Broadway Musical
Bret Harte High School Theater | 2:00 pm - 7:00 pm
Tuolumne County Youth Centers
Jamestown Youth Center | 9:30 am - 5:00 pm












