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Traffic Advisory: Ramp, Lane Closure Scheduled Overnight as 101 NB Central San Rafael Harbor Bridge Replacement Continues in Marin County

Posted on November 4, 2022


MARIN COUNTY — Caltrans is continuing the Harbor Bridge Replacement Project in November for pavement and electrical work on the northbound 101 off-ramp to Central San Rafael. The project started in February 2021, and on Dec. 11, 2021, was suspended due to environmental regulations for in-creek work.

There is a full off-ramp closure of the Central San Rafael exit on US-101 northbound Monday, November 7, Tuesday, November 8 and Wednesday, November 9 from 11 p.m. until 6 a.m. each night. Work will include pavement striping and other construction activities.

Primary detour:

  • Continue on northbound US-101 and take the northbound loop off-ramp to San Pedro Road.
  • Take a right on Merrydale Road Get on the US-101 southbound onramp
  • Take US-101 south to Mission Avenue Continue onto Hetherton Street
  • Take a left on 2nd Street

Secondary detour

From northbound US-101, take the Francisco Boulevard exit

Take a right on Bellam Boulevard

Take a left on Francisco Boulevard

Take a right on Grand Avenue

A lane closure is scheduled from Monday, November 7 through Friday, November 11 from 9 p.m. until 7 a.m. each night. Upon exiting the Central San Rafael off-ramp, one lane (out of three) will be closed during construction; the other two lanes will remain open.

All Harbor Bridge construction work is dependent on weather this fall.

Work on the intersection improvements started in May 2022 while in-creek work resumed in June 2022 to complete the western portion of the new bridge and switch to the final traffic configuration. The deck of the western portion of the new bridge and the bridge approach slab have been completed. The project is expected to be completed in the fall of 2022.

Changeable message and directional signs will be in place to assist motorists traveling in the area. The California Highway Patrol (CHP) will be on-site during the closures.

Please drive with caution. Slow for the Cone Zone and Be Work Zone Alert. Caltrans thanks motorists for their patience while we work to maintain our state’s highways, bridges, and tunnels.

Additional project information is available at: http://101express.com/ For 24/7 traffic updates, follow 511.org: https://twitter.com/511SFBay For real-time traffic, click on Caltrans QuickMap: http://quickmap.dot.ca.gov/

 

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