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 0.6 mi west of Lake Alpine to 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 2.7 mi east of Cabbage Patch 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
No traffic restrictions are reported for this area.
Highway 26
No traffic restrictions are reported for this area.
Highway 49
1-way controlled traffic at various locations from 0.2 mi north of the
Jct of SR 41 /at Junction Dr/ to 0.4 mi north of the Jct of SR 41
/at Meadow Vista Dr/ (Madera Co) 24 hrs a day 7 days a week - Due to
emergency work
No traffic restrictions are reported for this area.
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
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
**For Eastbound Traffic:
Chains are required on all vehicles except 4-wheel-drive vehicles with snow
tires on all 4 wheels from Cisco Grove (Placer Co) to the Donner Lake
Interchange (Nevada Co)
Eastbound trucks are being screened at Applegate (Placer Co) - Drivers must
have maximum chains in their possession in order to proceed - Permit loads are
prohibited
**For Westbound Traffic:
Chains are required on all vehicles except 4-wheel-drive vehicles with snow
tires on all 4 wheels from Truckee to 2.5 mi east of the Jct of SR 20
(Nevada 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
Westbound trucks are being screened at Overland Trail Rd /in Truckee/
(Nevada Co) - Drivers must have maximum chains in their possession in order to
proceed - Permit loads are prohibited
Westbound trucks are being screened 5 mi west of Reno /at Mogul/ (Washoe Co)
- Drivers must have maximum chains in their possession in order to proceed
- Permit loads are prohibited
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 6.5 mi east of Peddlers Vista (Amador Co) to
5 mi west of 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 24.6 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
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
For Yosenite Nat'l Park road information call 209-372-0200
Local Traffic New
Events
Tuolumne County Arts | All Day
Mariposa Gem and Mineral Show
Mariposa County Fairgrounds | All Day
Cancelled: Young Eagles Rally at Columbia Airport
Coumbia AirportTerminal Building | 9:00 am - 12:00 pm
Yosemite Rivers Alliance Mailing Address | All Day
American Legion Breakfast
Sonora Veterans Memorial Hall | 8:00 am
EUREKA DAY
Murphys Creek Theatre | 2:00 pm - 3:30 pm
Tuolumne Me-Wuk Tribal TANF | 5:00 pm - 7:00 pm
Art Week
Tuolumne County Arts | All Day
VFW Post 2600 | 6:00 pm - 7:30 pm
EUREKA DAY
Murphys Creek Theatre | 7:30 pm - 9:00 pm
Medicine Bag Making
Tuolumne Me-Wuk Tribal TANF | 5:00 pm - 7:00 pm
Murphys Creek Theatre | 12:00 pm - 1:30 pm
Tuolumne Newcomers Dinner and Speaker
The Peppery Bar and Grill | 5:00 pm - 8:00 pm
Art Week
Tuolumne County Arts | All Day












