Caltrans has begun construction for the new Express Lanes Projects on U.S. 101, between Interstate 380 in San Mateo County and Whipple Avenue in Redwood City and will anticipate closures in the coming weeks. These projects will provide 22 miles of interrupted express lanes in both directions to improve travel times, reduce congestion and encourage carpooling.
Nighttime ramp closures - week of August 30
Temporary nighttime ramp closures could possibly occur between Sunday night and Friday morning in/near the cities of Menlo Park, Redwood City, San Carlos, Belmont, San Mateo, Foster City, Burlingame, Millbrae, San Bruno and South San Francisco at the following locations. Signs near the ramps will have exact closure times and locations.
South of Whipple Avenue
- Westbound Marsh Road on-ramp (closures possible starting at 6 p.m. and ending at 7 p.m. at this location)
North of Whipple Avenue
- Eastbound/Westbound Whipple Avenue on/off-ramp (closures possible starting at 5 p.m. at this location)
- Eastbound/Westbound Holly Street, Northbound U.S. 101 on-ramp
- Southbound Harbor Boulevard on-ramp (closures possible starting at 5 p.m. at this location)
- Southbound Ralston Avenue on/off-ramp (closures possible starting at 5 p.m. at this location)
- Northbound Marine Parkway on/off-ramp (closures possible starting at 6 p.m. at this location)
- Westbound East Hillsdale Boulevard on-ramp
- Southbound U.S. 101, Eastbound/Westbound Route 92/Fashion Island Boulevard connector ramp
- Southbound Fashion Island Boulevard on-ramp
- Southbound U.S. 101, Westbound Route 92 connector ramp
- Northbound Kehoe Avenue on/off-ramp
- Eastbound/Westbound 3rd/4th Avenue, Southbound U.S. 101 on-ramp
- Southbound Poplar Avenue on/off-ramp
- Eastbound/Westbound Broadway and Old Bayshore, Southbound U.S. 101 on-ramp
- Northbound Broadway and Old Bayshore on/off-ramp
- Eastbound Millbrae Avenue, Southbound U.S. 101 on-ramp
- Westbound Millbrae Avenue, Southbound U.S. 101 on-ramp
- Eastbound/Westbound Millbrae Avenue, Northbound U.S. 101 off-ramp
- Southbound SFO Domestic Terminals on-ramp
- Northbound Airport Boulevard on-ramp
- Eastbound/Westbound I-380, Northbound U.S. 101 connector ramp
- Eastbound I-380, Northbound U.S. 101 connector ramp
- Southbound U.S. 101, I-380 off-ramp
- Westbound I-380, Southbound U.S. 101 connector ramp
Nighttime ramp closures
- Will be displayed on changeable message signs within the construction zone
- Will begin after 7 p.m. and reopen by 6 p.m., unless otherwise noted above
- Will have detour signs posted
All closures are dependent on the weather. Rainy weather may cause work to be rescheduled. Changeable message signs along the freeway and adjacent routes will keep motorists apprised of the status of the closures.
For questions during construction, contact Caltrans Public Information Officer Alejandro Lopez at 510-385-6856 or
request weekly email updates. Visit the project website at
101express.com for more information about the project.
