California Department of Transportation

06/30/2026 | Press release | Distributed by Public on 06/30/2026 15:10

Ramp, Lane Closures Scheduled Nightly on Northbound, Southbound US-101 for Capital Preventive Maintenance Project in Marin County

Ramp, Lane Closures Scheduled Nightly on Northbound, Southbound US-101 for Capital Preventive Maintenance Project in Marin County

Published: Jun 30, 2026

Schedule: Tuesday, June 30 through Thursday, July 2

Marin County - Caltrans is scheduled to continue its Capital Preventive Maintenance project along Northbound and Southbound US-101.

Various lanes will be closed from Tuesday, June 30 through Thursday, July 2. Northbound US-101 closures are scheduled from 10 p.m. to 6 a.m., and southbound closures are from from 8 p.m. to 5 a.m. the next mornings.

The Northbound US-101 on-ramp to Industrial Way and the Southbound US-101 on-ramp to Lucky Drive are scheduled to be closed on Tuesday, June 30 from 8 p.m. until 6 a.m. the next morning. The Northbound US-101 off-ramp to Industrial and Southbound US-101 off-ramp to Lucky Drive are scheduled to be closed between 10 p.m. and 6 a.m. the next mornings.

The Southbound US-101 on-ramp to Lucky Drive is scheduled to be closed on Wednesday, July 1 from 8 p.m. until to 6 a.m. the next morning. The Northbound US-101 on-ramp from N. San Pedro Road will be closed from midnight to 6 a.m. the next morning. The Northbound US-101 on-ramp from Bellam Boulevard/Westbound 580 will be closed from 11 p.m. until 5 a.m. the next morning. The Northbound US-101 off-ramp to Manuel T. Freitas Parkway will be closed from midnight until 7 a.m. the next morning.

Detour for Industrial Way on-ramp closure on Northbound US-101

  • Head south on Redwood Highway toward Industrial Way
  • Continue onto Tamalpais Drive
  • Turn right to merge onto Northbound US-101

Detour for Lucky Drive on-ramp closure on Southbound US-101

  • Dontinue on Tamal Vista Boulevard and turn left onto Fifer Avenue
  • Turn left onto Lucky Drive
  • Turn right onto Doherty Drive
  • Turn left onto Magnolia Avenue
  • Turn left onto Redwood Avenue
  • Continue onto Tamalpais Drive
  • Use the right lane to merge onto Northbound US-101
  • Head Southeast on Fifer Avenue

Detour for Northbound US-101 on-ramp from North San Pedro Road

  • Go Westbound on San Pedro Road
  • Turn right onto Los Ranchitos Road
  • Los Ranchitos Road becomes Las Gallinas Ave.; turn right onto Merrydale Road
  • Turn left on to Civil Center Drive
  • Turn left to merge onto Northbound US-101

If going Eastbound on North San Pedro Road

  • Continue on North San Pedro Road
  • Turn left onto Civil Center Drive
  • Turn right to merge onto Northbound US-101

Ramp closures could affect bus stops along the route.

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.

California Department of Transportation published this content on June 30, 2026, and is solely responsible for the information contained herein. Distributed via Public Technologies (PUBT), unedited and unaltered, on June 30, 2026 at 21:10 UTC. If you believe the information included in the content is inaccurate or outdated and requires editing or removal, please contact us at [email protected]