Lane Closure, Full Ramp Closure Expected Overnight as 101 NB Central San Rafael Harbor Bridge Replacement Continues Monday, Marin County

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Lane closure July 18 through July 20, each night
Full off-ramp closure July 20 throught July 23, each night

SAN RAFAEL — Caltrans is continuing the Harbor Bridge Replacement Project this month (July) on the northbound 101 off-ramp to Central San Rafael, Marin County. The project started in February 2021, and on Dec. 11, 2021, was suspended due to environmental regulations for in-creek work.

A nightly lane closure will resume Monday, July 18 through Wednesday, July 20 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 at all times.

There will be a full off-ramp closure of the Central San Rafael exit from Wednesday, July 20 through Saturday, July 23 from 9 p.m. until 7 a.m. each night.

Image showing the area affected by the lane closures for the Harbor Bridge Replacement Project on the northbound 101 off-ramp to Central San Rafael, Marin County.Detour from US-101 Northbound
Continue on northbound 101 and take the off-ramp to San Pedro Road.
Take a right on Merrydale Road.
Get on the southbound 101 on-ramp.
Take 101 south to Mission Avenue.
Continue onto Hetherton Street.
Take a left on 2nd Street.

Detour from 580 Westbound
Take the Francisco Boulevard exit.
Take a right on Bellam Boulevard.
Take a left on Francisco Boulevard.
Take a right on Grand Avenue.

The project is expected to be completed in the fall of 2022. The Harbor Bridge project is partially funded with SB1 funds, approved by the voters in 2017.

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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