Mountain Road Report
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.
Highway 4
1-way controlled traffic at various locations from 2.1 mi west of the
Stanislaus/Calaveras Co Line /at Dunton Rd/ to the Stanislaus/Calaveras Co Line
- Due to construction
Eastbound traffic is reduced to 1 lane 4 mi east of Hercules
/at Franklin Canyon Rd/ (Contra Costa Co) from 0830 hrs to 1500 hrs on 8/4/25
- Due to maintenance
Highway 12
No traffic restrictions are reported for this area.
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
1-way controlled traffic at various locations from Church St to Copello Dr
/in Angels Camp/ (Calaveras Co) from 2100 hrs each night to 0700 hrs each
morning Monday thru Friday thru 8/8/25 - 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
There is a dense fog advisory in effect at the San Francisco-Oakland Bay
Bridge /in San Francisco/ (San Francisco,Alameda Co) - Motorists are advised tO
drive with caution
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
1-way controlled traffic at various locations from the Jct of SR 124 to
8.6 mi east of the Jct of SR 124 /at Ione Cut off/ (Amador Co) from 2100 hrs
each night to 0600 hrs each morning Monday thru Friday thru 8/8/25 - Due to
construction
Highway 99
A high wind advisory is in effect from the Jct of I 5 to 2 mi south of
Bakersfield (Kern Co) - Travel is not recommended for campers, trailers, or
permit loads
The northbound connector to westbound US 50 /in Sacramento/ (Sacramento Co)
is closed from 2300 hrs each night to 0400 hrs each morning Tuesday thru
Saturday thru 8/15/25 - Due to construction - Motorists are advised to use an
alternate route
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
1-way controlled traffic at various locations from 18.5 mi east of the
South Jct of US 395 /at Baxter's Rd/ to 21.7 mi east of the South Jct of US 395
(Mono Co) from 0600 hrs to 2000 hrs Monday thru Friday thru 8/8/25 - Due to
construction
For Yosenite Nat'l Park road information call 209-372-0200
