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 0.7 mi east of Lake Alpine to the Jct of SR 89
/Ebbetts Pass/ (Alpine Co) - Due to snow - Motorists are advised to use an
alternate route
Highway 12
No traffic restrictions are reported for this area.
Highway 26
No traffic restrictions are reported for this area.
Highway 49
Chains or snow tires are required from Sierra City 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 at various locations from Carson Hill to
Connel Lane /in San Andreas/ (Calaveras Co) from 0730 hrs to 1700 hrs on
11/18/24 - Due to maintenance
1-way controlled traffic at the Calaveras/Amador Co Line 24 hrs a day
7 days a week thru 2359 hrs on 1/31/25 - Due to construction
1-way controlled traffic at various locations from Gold Hill Rd to
1 mi north of Coloma (El Dorado Co) from 0800 hrs to 1700 hrs Monday thru
Friday thru 11/22/24 - Due to permit work
No traffic restrictions are reported for this area.
Highway 50
1-way controlled traffic at various locations from Sly Park Rd
/in Pollock Pines/ to 3 mi east of Pollock Pines (El Dorado Co) from 0600 hrs
to 1800 hrs Monday thru Friday thru 11/22/24 - Due to construction
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
**For Eastbound Traffic:
Chains are required on all vehicles except 4-wheel-drive vehicles with snow
tires on all 4 wheels from Nyack (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 Whitmore (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
Highway 88
Chains are required on all vehicles except 4-wheel-drive vehicles with snow
tires on all 4 wheels from 6.5 mi east of Peddler Hill (Amador Co) to 5 mi west of Picketts Jct (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
Highway 99
There is a dense fog advisory in effect from the Madera/Merced Co line to
5.2 mi south of the Madera/Merced Co Line (Madera Co) - Motorists are advised
to drive with caution
1-way controlled traffic at various locations from 1.5 mi north to 2.5 mi
north of Los Molinos (Tehama Co) from 1645 hrs each night to 0500 hrs each
morning Monday thru Friday thru 11/22/24 - Due to construction
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) - Due to snow - Motorists are
advised to use an alternate route
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) - Due to snow - Motorists are advised to
use an alternate route
For Yosenite Nat'l Park road information call 209-372-0200
