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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]

IS CLOSED FROM THE EAST END OF LAKE ALPINE TO 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 THE CONTRA COSTA/SAN JOAQUIN CO LINE 24 HRS A
DAY THRU 2000 HRS ON FRIDAY 6/16/23 - DUE TO CONSTRUCTION

Highway 12

[IN THE CENTRAL CALIFORNIA AREA]

NO TRAFFIC RESTRICTIONS ARE REPORTED FOR THIS AREA.

Highway 26

[IN THE CENTRAL CALIFORNIA & SIERRA NEVADA]

NO TRAFFIC RESTRICTIONS ARE REPORTED FOR THIS AREA.

Highway 49

[IN THE CENTRAL CALIFORNIA AREA]

IS CLOSED 0.7 MI SOUTH OF SONORA TO 0.2 MI NORTH OF SONORA
/AT PONDEROSA DR/ (TUOLUMNE CO) - DUE TO A MUDSLIDE - MOTORISTS ARE ADVISED
TO USE AN ALTERNATE ROUTE

[IN THE NORTHERN CALIFORNIA AREA]

CHAINS OR SNOW TIRES ARE REQUIRED FROM BASSETTS TO SATTLEY (SIERRA 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 7.7 MI NORTH OF CAMPTONVILLE (SIERRA CO) - DUE TO
EMERGENCY ROADWORK

Highway 50

[IN THE SACRAMENTO VALLEY & THE LAKE TAHOE BASIN]

NO TRAFFIC RESTRICTIONS ARE REPORTED FOR THIS AREA.

Highway 59

[IN THE CENTRAL CALIFORNIA AREA]

IS CLOSED FROM 4.1 MI SOUTH OF MERCED /AT MCNAMARA RD/ TO EAST MISSION AVE
/IN MERCED/ (MERCED CO) - DUE TO FLOODING - MOTORISTS ARE ADVISED
TO USE AN ALTERNATE ROUTE

Highway 80

[IN THE SAN FRANCISCO BAY AREA - SOLANO CO]

NO TRAFFIC RESTRICTIONS ARE REPORTED FOR THIS AREA.

[IN THE NORTHERN CALIFORNIA AREA & SIERRA NEVADA]

**FOR EASTBOUND TRAFFIC:
CHAINS ARE REQUIRED ON ALL VEHICLES EXCEPT 4-WHEEL-DRIVE VEHICLES WITH SNOW
TIRES ON ALL 4 WHEELS FROM KINGVALE (PLACER CO) TO TRUCKEE (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 (NEVADA CO) TO 4.7 MI WEST OF KINGVALE
(PLACER CO)

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 REDUCE THE RISK OF BRAKE FIRES

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 88

[IN THE CENTRAL CALIFORNIA & SIERRA NEVADA]

CHAINS ARE REQUIRED ON ALL VEHICLES EXCEPT 4-WHEEL-DRIVE VEHICLES WITH SNOW
TIRES ON ALL 4 WHEELS FROM 6.3 MI EAST OF HAM'S STATION TO 3.5 MI EAST OF
SILVER LAKE (AMADOR CO)

CHAINS ARE REQUIRED ON ALL VEHICLES EXCEPT 4-WHEEL-DRIVE VEHICLES WITH SNOW
TIRES ON ALL 4 WHEELS FROM KIRKWOOD (AMADOR CO) TO 1 MI WEST OF WOODFORDS
(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.

TRUCKS OVER 65 ARE PROHIBITED FROM THE JCT OF SR 49 (AMADOR CO) TO THE
NEVADA STATE LINE

Highway 99

[IN THE CENTRAL CALIFORNIA AREA]

A HIGH WIND ADVISORY IS IN EFFECT FROM 1.7 MI NORTH TO 3.7 MI NORTH OF
MANTECA (SAN JOAQUIN CO) - TRAVEL IS NOT RECOMMENDED FOR CAMPERS, TRAILERS, OR
PERMIT LOADS

SOUTHBOUND TRAFFIC IS REDUCED TO 1 LANE 1.1 MI SOUTH OF TULARE (TULARE CO)
- DUE TO WASHOUT

[IN THE NORTHERN CALIFORNIA AREA]

NO TRAFFIC RESTRICTIONS ARE REPORTED FOR THIS AREA.

Highway 108

[IN THE CENTRAL CALIFORNIA AREA & SIERRA NEVADA]

IS CLOSED FROM 7.2 MI EAST OF STRAWBERRY TO 3 MI WEST OF THE JCT OF US 395
(TUOLUMNE,MONO CO) /SONORA PASS/ - 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 1 MI WEST OF LONG BARN TO 7.2 MI EAST OF STRAWBERRY
(TUOLUMNE 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.

[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 CRANE FLAT TO 3 MI WEST OF THE JCT OF US 395 /TIOGA PASS/
(TUOLUMNE, MONO CO) - FOR THE WINTER - MOTORISTS ARE ADVISED TO USE AN
ALTERNATE ROUTE

IS CLOSED FROM 5 MI EAST OF THE JCT OF US 395 TO 7 MI WEST OF THE
JCT OF US 6 /AT BENTON CROSSING RD/ (MONO CO) - FOR THE WINTER - MOTORISTS ARE
ADVISED TO USE AN ALTERNATE ROUTE

[YOSEMITE NAT'L PARK]

FOR YOSEMITE NAT'L PARK ROAD INFORMATION CALL 209-372-0200

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