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Mountain Road Report

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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.

California Highway 4
California Highway 12
California Highway 26
California Highway 49
Highway 50
Tuolumne County J59
Interstate 80
California Highway 88
California Highway 99
California Highway 108
California Highway 120

Highway 4

[IN THE CENTRAL CALIFORNIA AREA]

The eastbound connector to eastbound I 80 (Contra Costa Co) is closed from
1900 hrs each night to 0500 hrs each morning Monday thru Wednesday thru
11/26/25 - Due to construction - Motorists are advised to use an alternate
route

The eastbound connector to norhtbound I 680 (Contra Costa Co) is closed
from 2000 hrs each night to 0600 hrs each morning Monday thru Wednesday thru
11/26/25 - Due to construction - Motorists are advised to use an alternate
route

Is closed from Lake Alpine to 7.2 mi west of the Jct of SR 89
/Ebbetts Pass/ (Alpine Co) - Due to snow - Motorists are advised to use
an alternate route

Highway 12

[IN THE CENTRAL CALIFORNIA AREA]

There is a dense fog advisory in effect from the Napa/Solano Co line to
the Jct of SR 24 (Napa Co) - Motorists are advised to drive with caution

Highway 26

[IN THE CENTRAL CALIFORNIA & SIERRA NEVADA]

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

[IN THE CENTRAL CALIFORNIA AREA]

No traffic restrictions are reported for this area.

[IN THE NORTHERN CALIFORNIA AREA]

No traffic restrictions are reported for this area.

Highway 50

[IN THE SACRAMENTO VALLEY & THE LAKE TAHOE BASIN]

No traffic restrictions are reported for this area.

[CAPITAL CITY FREEWAY]

No traffic restrictions are reported for this area.

Highway 59

[IN THE CENTRAL CALIFORNIA AREA]

No traffic restrictions are reported for this area.

Highway 80

[IN THE SAN FRANCISCO BAY AREA - SOLANO CO]

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 at the San Francisco-Oakland Bay
Bridge /in San Francisco/ (San Francisco,Alameda Co) - Motorists are advised tO
drive with caution

There is a dense fog advisory in effect at the Jct of SR 32 (Solano Co)
- Motorists are advised to drive with caution

[IN THE NORTHERN CALIFORNIA AREA & SIERRA NEVADA]

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

[BUSINESS 80 - CAPITAL CITY FREEWAY]

No traffic restrictions are reported for this area.

Highway 88

[IN THE CENTRAL CALIFORNIA AREA & SIERRA NEVADA]

No traffic restrictions are reported for this area.

Highway 99

[IN THE CENTRAL CALIFORNIA AREA]

No traffic restrictions are reported for this area.

[IN THE NORTHERN CALIFORNIA AREA]

Is closed at Simmerhorn Rd /in Galt/ (Sacramento Co) from 1900 hrs each
night to 0500 hrs each morning Monday thru Wedneady thru 11/26/25 - Due to
construction - Motorists are advised to use an alternate route

There is a dense fog advisory in effect from the Sacramento/Sutter Co line
to Yuba City (Sutter Co) - Motorists are advised to drive with caution

There is a dense fog advisory in effect from Gridley to Chico (Butte Co)
- Motorists are advised to drive with caution

Highway 108

[IN THE CENTRAL CALIFORNIA AREA & SIERRA NEVADA]

Is closed from 26.4 mi east of Strawberry (Tuolumne Co) to 5.3 mi west of
the Jct of US 395 (Mono Co) /Sonora Pass/ - Due to snow - Motorists are
advised to use an alternate route

[YOSEMITE NAT'L PARK]

For Yosemite Nat'l Park road information call 209-372-0200

Highway 120

[IN THE CENTRAL CALIFORNIA AREA & SIERRA NEVADA]

Is closed from Yosemite National Park Boundary to 3.5 mi west of
the Jct of US 395 /Tioga Pass/ (Tuolumne, Mono Co) - Due to snow
- Motorists are advised to use an alternate route

[YOSEMITE NAT'L PARK]

For Yosenite Nat'l Park road information call 209-372-0200

Roads Info Last Updated: Tuesday, 25th of November 2025, 08:59:22 PM

Local Traffic New