Caltrans District 4 Marin County Newsletter

New HOV hours announced in Marin, Sonoma counties

Caltrans and its transportation partners, the Metropolitan Transportation Commission (MTC), the Transportation Authority of Marin (TAM) and Sonoma County Transportation and Climate Authorities (SCTCA) announced adjustments in January affecting High Occupancy Vehicle (HOV) hours on US-101 in Marin and Sonoma counties.

New HOV hours will take effect in late February (weather permitting) and operate between 6 a.m. to 9 a.m. in the mornings and 3 p.m. to 6:30 p.m. in the evenings, Monday through Friday. The hours are based on Caltrans traffic analysis along the corridor that was completed this month.

The new hours will begin after updates are made to HOV hours signage. Signs will be updated along the entire length of the HOV lanes, stretching from the Richardson Bay Bridge in Marin County and Windsor in Sonoma County.

For more, see https://dot.ca.gov/caltrans-near-me/district-4/d4-projects/hwy-101-marin-sonoma-narrows-carpool-lanes-update

Manuel T. Freitas Roundabout Project in San Rafael Continues to Progress in February 2026

Caltrans is scheduled to close the intersection of Civic Center Drive/Redwood Highway on Thursday, Feb. 26 as part of the Manuel T. Freitas Roundabout Project in San Rafael. The closure will be in place 24 hours a day, seven days a week.

The closure is needed to facilitate utility relocation work. Upon completion of this work, Stage 3 construction will commence and is anticipated to continue through approximately June 2026.

Stage 3 includes the roundabout construction on the east side. There will be a new bus stop constructed as well as a northbound slip on-ramp.

As a part of the project, Caltrans is proposing to improve the intersection of Freitas Parkway, Civic Center Drive, and Old Redwood Highway by installing a roundabout. This change will improve traffic flow and make this busy intersection/off-ramp safer for vehicles and pedestrians.

For more info, see https://dot.ca.gov/caltrans-near-me/district-4/d4-projects/d4-roundabout-project-us101-san-rafael

Lagunitas Creek Bridge Replacement Project Scheduled to Begin in Late Spring 2026 in Town of Point Reyes

Caltrans is currently in the bidding phase for the Lagunitas Creek Bridge Replacement Project on State Route 1 (SR-1) near Point Reyes Station. Caltrans is targeting late spring 2026 to begin the project with one-way traffic control in place.

The project will require a 21-day full bridge closure during construction. This full closure is currently scheduled to occur after Labor Day weekend in 2026. During the full closure, a detour will be implemented to safely redirect traffic around the bridge.

The project proposes replacing the Lagunitas Creek Bridge. In addition, the culvert north of the bridge will be widened to match the new bridge width. The new bridge will have wider shoulders and will provide sidewalk and curb ramps that will be ADA-compliant. A crosswalk will also be added across Sir Francis Drake Boulevard at the SR-1 intersection to provide continuous safe access over Lagunitas Creek and into Point Reyes Station.

The Lagunitas Creek Bridge is located just south of Point Reyes Station and north of the intersection with Sir Francis Drake Boulevard, approximately four-tenths of a mile east of the San Andreas fault. It serves as a vital connection between communities north and south of Point Reyes Station for residents, tourists, delivery trucks, emergency responders, transit providers, pedestrians, bicyclists, and equestrians. The bridge, which was built in 1929, is a three-span structure with a total length of 152 feet.

For more information, see https://dot.ca.gov/caltrans-near-me/district-4/d4-projects/d4-marin-lagunitas-creek-bridge

Setting the PACE: Public Affairs Customer Engagement Site is Now Live!

District 4 is proud to announce the launch of our new Customer Service Request (CSR) platform. PACE, the Public Affairs Customer Engagement site, provides a regularly updated breakdown of services requested and rendered across the district.

• The CSR dashboard aims to provide an overview of the responsiveness to maintenance services requested across the nine Bay Area counties.
• The data represented as month-to-date falls within a rolling 30-day Service Level Agreement (SLA) and is updated weekly.
• We strive to close 60% (or more) of all monthly service requests received via the CSR website portal.
• For more information or to leave comments/suggestions, please contact D4CSLTEAM@dot.ca.gov.
• To report a highway issue/problem, please submit a CSR ticket through the Customer Service Request Form.

The Marin County newsletter will be distributed on a regular schedule.

For 24/7 traffic updates, please visit 511.org: https://x.com/511SFBay
For real-time information, visit Caltrans QuickMap: https://quickmap.dot.ca.gov
Follow us on X: https://x.com/CaltransD4
Or call 1-800-472-7623, 1-800-427-ROAD for state highway conditions statewide.

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