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
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
1-way controlled traffic at Melita Rd /in Santa Rosa/ (Sonoma Co) - Due to
tree work
Highway 26
1-way controlled traffic at Montgomery Dr /in Happy Valley/ (Calaveras Co)
from 0800 hrs to 1700 hrs Monday thru Friday thru 5/15/26 - Due to construction
1-way controlled traffic at various locations from Main St to
Centennial Mine Rd /in West Point/ (Calaveras Co) from 0700 hrs to 1700 hrs
Monday thru Friday thru 5/15/26 - Due to construction
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
1-way controlled traffic at various locations from Vista Point
/in Bear Valley/ to Crown Lead Rd /in Coulterville/ (Mariposa Co) from 0700 hrs
to 1500 hrs Monday thru Friday thru 5/15/26 - Due to construction
1-way controlled traffic at various locations from Crown Lead Rd
/in Coulterville/ to 3 mi north of Coulterville /at Penon Blanco Rd/
(Mariposa Co) from 0600 hrs to 1600 hrs Monday thru Friday thru 5/15/26 - Due
to construction
1-way controlled traffic at various locations from Main St to Bell Rd
/in Enterprise/ (Amador Co) from 0800 hrs to 1700 hrs Monday thru Friday thru
5/15/26 - Due to construction
No traffic restrictions are reported for this area.
Highway 50
No traffic restrictions are reported for this area.
[CAPITAL CITY FREEWAY]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
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
No traffic restrictions are reported for this area.
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
No traffic restrictions are reported for this area.
[YOSEMITE NAT'L PARK]For Yosemite Nat'l Park road information call 209-372-0200
Highway 120
No traffic restrictions are reported for this area.
[YOSEMITE NAT'L PARK]For Yosenite Nat'l Park road information call 209-372-0200
Local Traffic New
Events
Columbia State Historic Park | 10:00 am - 4:00 pm
May Baby Chat
Tuolumne County Public Health Department | 10:30 am - 11:30 am
Leave No Trace Spotlight: Trivia Night
Bear Tent Brewing | 5:00 pm - 7:00 pm
Yosemite Rivers Alliance Mailing Address | 8:00 am - 2:00 pm
Leave No Trace Spotlight: Wildflower Hike with Tom Hofstra
Summit Ranger Station | 9:00 am - 1:00 pm
Grand Opening of the MACT Internal Medicine and Optometry clinic
MACT Internal Medicine and Optometry clinic | 11:00 am - 2:00 pm
Tuolumne Veterans Memorial Hall | 7:00 am - 11:00 am
Sonora 2026 Certified Farmers’ Market
Sonora Farmers Market | 7:30 am - 11:30 am
Ferretti Non-Motorized Trails Clean up Volunteer Day
Ferretti Non-Motorized Trailhead | 9:00 am - 12:00 pm












