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
Is closed from Alpine Lake to 7.4 mi west of the Jct of SR 89
/Ebbetts Pass/ (Alpine Co) - For the Winter - Motorists are advised to use an
alternate route
1-way controlled traffic at various locations from Escalon Bellota rd to
Farmington /in Stockton/ (San Joaquin Co) from 0900 hrs to 1400 hrs Monday
thru Friday thru 5/2/25 - Due to construction
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 Princeton Way to
Bear Valley Point /in Mt Bullion/ (Mariposa Co) from 0700 hrs to 1545 hrs
Monday thru Friday thru 5/2/25 - Due to maintenance
1-way controlled traffic at various locations from 1.1 mi south of Cool
/at Cave Valley Rd/ to St Florian Ct /in Cool/ (El Dorado Co) from 0700 hrs to
1900 hrs Monday thru Saturday thru 5/3/25 - Due to maintenance
1-way controlled traffic at various locations from 0.7 mi north of
Nevada City /at Old Downieville Hwy/ to Oak Tree Rd /in North San Juan/
(Nevada Co) from 0800 hrs to 1630 hrs Monday thru Friday thru 5/2/25 - Due to
maintenance
1-way controlled traffic at various locations from 9.1 mi north of
Camptonville /at Rocky Rest Campground/ to Goodyear Creek /in Goodyears Bar/
(Sierra Co) from 0700 hrs to 1700 hrs Monday thru Thursday thru 5/1/25 - Due to
maintenance
Highway 50
The westbound connector to southbound SR 99 /in Sacramento/ (Sacramento Co)
is closed from 2300 hrs each night to 0500 hrs each morning Monday thru Friday
thru 5/2/25 - Due to construction - Motorists are advised to use an alternate
route
1-way controlled traffic at various locations from Kyburz to Strawberry
(El Dorado Co) from 0800 hrs to 1630 hrs Monday thru Friday thru 5/2/25 - Due
to maintenance
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]No traffic restrictions are reported for this area.
[BUSINESS 80 - CAPITAL CITY FREEWAY]No traffic restrictions are reported for this area.
Highway 88
1-way controlled traffic 1.2 mi east of Waterloo /at Calaveras River/
(San Joaquin Co) from 0830 hrs to 1430 hrs Monday thru Friday thru 5/2/25 - Due
to construction
1-way controlled traffic at various locations from the Jct of SR 124 to the
Jct of SR 49 (Amador Co) from 2100 hrs each night to 0600 hrs each morning
Monday thru Friday thru 5/2/25 - Due to construction
Highway 99
No traffic restrictions are reported for this area.
[IN THE NORTHERN CALIFORNIA AREA]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
Is closed from 26.4 mi east of Strawberry to 5.3 mi west of the
Jct of US 395 /Sonora Pass/ (Tuolumne,Mono Co) - For the winter - Motorists
are advised to use an alternate route
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 Crane Flat to 3.5 mi west of the North Jct of US 395
/Tioga Pass/ (Tuolumne, Mono Co) - For the winter - Motorists are advised
to use an alternate route
1-way controlled traffic at various locations from the Jct of SR 49 to
2.2 mi east of the Jct of SR 49 /at Ferndale Rd/ (Tuolumne Co) from 0730 hrs
to 1400 hrs Monday thru Friday thru 5/2/25 - Due to construction
1-way controlled traffic at various locations from 5.4 mi east of
the Jct of SR 49 to 5.9 mi east of the Jct of SR 49 (Tuolumne Co) from
1100 hrs to 1600 hrs Monday thru Friday thru 5/2/25 - Due to construction
For Yosenite Nat'l Park road information call 209-372-0200
