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.
Mountain Road Report
Highway 4
The westbound connector to northbound I 680 (Contra Costa Co) is closed
from 2300 hrs on 5/19/26 to 0500 hrs on 5/20/26 - Due to construction
- Motorists are advised to use an alternate route
Is closed from 8 mi east of Antioch /at Marsh Creek Rd/ to 11.9 mi east of
Antioch /at Byron Hwy/ (Contra Costa Co) from 1900 hrs each night to 0500 hrs
each morning Monday thru Friday thru 5/22/26 - Due to construction - Motorists i
are advised to use an alternate route
1-way controlled traffic at the Contra Costa/San Joaquin Co Line
/at Old River Bridge/ 24 hrs a day 7 days a week thru 1900 hrs on 7/26/26
- Due to construction
Highway 12
No traffic restrictions are reported for this area.
Highway 26
No traffic restrictions are reported for this area.
Highway 49
1-way controlled traffic at various locations from 0.2 mi north of the
Jct of SR 41 /at Junction Dr/ to 0.4 mi north of the Jct of SR 41
/at Meadow Vista Dr/ (Madera Co) 24 hrs a day 7 days a week - Due to
emergency work
1-way controlled traffic at various locations from Marysville Rd to
Willow Creek Campground /in Camptonville/ (Yuba Co) from 0800 hrs to 1730
Tuesday thru Friday thru 5/22/26 - Due to maintenance
1-way controlled traffic at various locations from El Dorado St to
Oak Dell Rd /in Diamond Springs/ (El Dorado Co) from 0800 hrs to 1600 hrs
Tuesday thru Friday thru 5/22/26 - Due to construction
1-way controlled traffic at various locations from 6.2 mi north of
the Jct of SR 20 /at Excelsior Ditch/ to 10.6 mi north of the Jct of SR 20
/at Birchville Rd/ (Nevada Co) from 0830 hrs to 1800 hrs Tuesday thru Friday
thru 5/22/26 - Due to construction
1-way controlled traffic at School St /in Sebastopol/ (Nevada Co) from
0700 hrs to 1730 hrs Tuesday thru Friday thru 5/22/26 - Due to construction
1-way controlled traffic at various locations from 2.5 mi north to 4.1 mi
north of Downieville (Sierra Co) From 0700 hrs to 1700 hrs Tuesday thru Friday
thru 5/22/26 - Due to construction
1-way controlled traffic at various locations from Loganville Camp Ground
to Ladies Canyon /in Loganville/ (Sierra Co) From 0630 hrs to 1700 hrs Tuesday
thru Friday thru 5/22/26 - Due to construction
Northbound traffic is reduced to 1 lane 4.7 mi north of I 80 /in Auburn/
(Placer Co) - Due to a downed power pole
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
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
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
No traffic restrictions are reported for this area.
Highway 99
The northbound connector to northbound & southbound SR 41 /in Fresno/
(Fresno Co) is closed from 2000 hrs on 5/19/26 to 0500 hrs on 5/20/26 - Due to
maintenance - Motorists are advised to use an alternate route
A high wind advisory is in effect from the Stanislaus/San Joaquin Co Line
to the San Joaquin/Sacramento Co Line - Travel is not recommended for campers,
trailers, or permit loads
No traffic restrictions are reported for this area.
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
No traffic restrictions are reported for this area.
[YOSEMITE NAT'L PARK]For Yosenite Nat'l Park road information call 209-372-0200
Local Traffic New
Events
The Peppery Bar and Grill | 5:00 pm - 8:00 pm
Musical Sanctuary: Inner Harmony
Open Door United Church of Christ | 5:30 pm - 6:30 pm
Sonora Elks Lodge | 5:30 pm - 6:30 pm
Optical Astronomy: Moon Night
Calaveras Big Trees State Park | 8:30 pm - 10:00 pm
Mi Wuk/Sugar Pine Fire Station | 8:00 am - 4:00 pm
51st Annual Special Athletes Track and Field Day
Summerville High School Track | 9:00 am - 1:00 pm
NCRG Sonora A’s Mini Roundup
Mother Lode Fairgrounds | 1:00 pm - 3:00 pm
Pine Mountain Lake Stables | All Day
Sonora 2026 Certified Farmers’ Market
Sonora Farmers Market | 7:30 am - 11:30 am
Annual Greenhorn Creek Community Garage Sale
711 McCauley Ranch Road | 8:00 am - 4:00 pm
Pine Mountain Lake Stables | All Day
Arnold Spring Peddler's Fair
HWY 4 Arnold | 9:00 am - 4:00 pm
Book Sale
Arnold Branch Library | 9:00 am - 4:00 pm












