Marin County Traffic and Road Conditions

Marin County Traffic Map

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Traffic flow, road conditions and incident information
Traffic Flow Lines
Red/White dashed lines indicate a closed road.
Grey/White dashed lines indicate road work.
Red lines indicate heavy traffic flow.
Yellow/Orange lines indicate medium traffic flow.
Green lines indicate normal traffic flow.
Black lines or areas without visible traffic flow may indicate a road closure, limited vehicle activity, or a roadway where traffic flow is not currently monitored.
Traffic Incidents
Each map icon represents a traffic event or incident, such as road construction, a road closure (red circle with a white dash), or an accident.
Map Tip:If you are unable to pan the map, press here to move focus away from the map, then try again.
Please note:During extreme weather, flooding, accidents or other major incidents, traffic in Marin County, CA may still appear as a green line even when individual lanes or an entire roadway is closed.

Marin County Traffic Alerts

Hazard 9.0 mi

Large debris on US101 in Marin

A large comforter or couch cushion is blocking lane one on northbound US101 just south of Nave Dr. The lane is clear, but drivers should remain cautious.

Us101 N / Nave Dr Ofr Updated 8:13 PM
Construction 9.1 mi

Construction assistance on US101 N

Construction assistance is taking place on northbound US101 at Miller Creek Rd. Expect some delays as units are on site.

Us101 N / Miller Creek Rd Updated 8:28 PM
Collision 13.6 mi

Collision involving deer on Skillman Ln

A gray Honda Pilot collided with a deer at Skillman Lane and Fair Avenue. The vehicle is on the right shoulder, and the deer has continued on its way.

Skillman Ln / Fair Ave Updated 8:23 PM
Hazard 19.8 mi

Bike blocking EB Chesley Ave at 6th St

A bike is blocking the eastbound lane of Chesley Avenue just east of 6th Street. Drivers should be aware of this obstruction.

Chesley Ave / 6th St Updated 7:49 PM
Collision 21.1 mi

Hit and run on I580 E near Marina Bay Pkwy

A gray Lexus was involved in a hit and run on eastbound I580 near Marina Bay Parkway. The other vehicle reportedly continued driving after the collision.

I580 E / Marina Bay Pkwy Ofr Updated 8:35 PM
Collision 23.5 mi

Collision blocking roadway at 4th and Garretson

A collision involving a white Mitsubishi Mirage and a gray Honda Accord is blocking the roadway at 4th Street and Garretson Avenue. Emergency units are on the scene.

4th St / Garretson Ave Updated 8:10 PM
Hazard 28.1 mi

Traffic hazard on I580 E near Oakland

Drywall is causing a dust cloud across all lanes on I580 East near the SR24 connector. Units have moved the debris to the right-hand side.

I580 E / I580 E Sr24 E Con Updated 8:13 PM
Hazard 31.1 mi

Traffic Hazard on US-101 North

A white truck pulling a trailer is dragging a chain on US-101 North near Airport Boulevard. This could pose a hazard to other drivers.

US101 N / AIRPORT BLVD OFR Updated 8:00 PM
Collision 31.6 mi

Possible vehicle off road on Sr4 W

There's a report of a possible vehicle off the right-hand side on westbound SR-4 near Alhambra Avenue. Emergency units are on the scene to assess the situation.

Sr4 W / Alhambra Ave Ofr Updated 8:42 PM
Collision 32.5 mi

Collision with deer on SR-13 North

A black Tesla Model X hit a deer in the slow lane on SR-13 North near Joaquin Miller Road. The vehicle is still drivable, and no injuries have been reported.

Sr13 N / Joaquin Miller Rd Ofr Updated 8:02 PM
Construction 33.3 mi

Construction Assistance at SR61

Construction assistance is taking place at SR61 and Island Dr. Units are on-site to manage the situation.

SR61 / Island Dr Updated 8:23 PM
Hazard 33.8 mi

Traffic hazard on I-880 South near 66th Ave

Two lanes are blocked on southbound I-880 adjacent to 66th Avenue due to a disabled black Honda Civic. A tow truck is on the way to assist.

I880 S / 66TH AVE OFR Updated 8:31 PM
California State Official Traffic Resources:
CA DOT | Caltrans QuickMap | CHP Traffic Full Site | CHP Traffic Mobile Site
sources: Caltrans, CHP, Twitter
Alerts Last Updated: Fri, Sep 11th 07:46:19 PM

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National Traffic Forecast

 

Wet Weekend Ahead: Prepare for Stormy Roads
Updated Fri Sep 11th 2026, 1:46pm PDT
Upper Mississippi Valley and Central Plains
Expect heavy rain and possible flooding on Friday and into Saturday morning across Interstate 94 and Highway 52 in the Upper Mississippi Valley. Severe thunderstorms with gusty winds and hail could impact travel, so plan extra time for commutes on Friday into Saturday morning.
Southwest Region
The rain continues into the weekend for the Southwest where Interstate 40 and Route 66 may experience localized flash flooding on Friday into Saturday morning. Roads in urban areas and burn scars are particularly vulnerable.
Ohio Valley and Central Appalachians
Watch for heavy downpours on Interstate 70 and Route 50 in the Ohio Valley/Central Appalachians on Saturday. Localized flash flooding is a risk.
Mid-Atlantic and Northeast
As a front moves north through Sunday, expect showers and thunderstorms across Interstate 95 and Route 1. Be cautious of slick roads and localized flooding.
Southern Mid-Atlantic to Florida
Thunderstorms will develop from the Southern Mid-Atlantic down to Florida along Interstate 95 and westward to the Lower Mississippi Valley through Saturday evening. Drive carefully with potential rainfall affecting visibility and road conditions.

Currently

Partly Cloudy 66°F
29.84 inHg.
Barometer
56%
Humidity
SW 15.5 mph
Wind
Partly Cloudy

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