Willow Road/U.S. 101 Interchange

Willow Road - US 101 Interchange
The City of Menlo Park is a project sponsor of the Caltrans project to update the interchange of U.S. 101 at Willow Road. The current "full cloverleaf" style interchange will be replaced with a "partial cloverleaf" which will eliminate the short merge weaves both on Willow Road and on the freeway and will create a more efficient way for all modes of traffic, including bikes and pedestrians, to get across the freeway at Willow Road. The project will replace the existing interchange with a new, wider bridge; add sidewalks on both sides, bike lanes on both sides and protected bike paths on both sides; and add two signalized intersections. The final version of the new interchange layout is available for review.

Current status


The project is currently out to bid, with a contract award expected by the end of January 2017. Construction is expected to begin in Spring 2017 and continue for approximately two years. Utility relocation work will begin in January 2017.

Current construction activities



Dates Times  Impacted area Activity  Traffic impacts
January-February 2017 7 am-6 pm, some work occurring on weekends
Sevier on east side of U.S. 101, Newbridge near Sevier Electrical relocation work; Work on wood poles
Shoulder closures
January-February 2017 7 am-6 pm, some work occurring on weekends
Bay Road between Van Buren and Sevier
Electrical relocation work; Work on wood poles
Shoulder closures
January-February 2017 24 hours per day, 7 days per week

Van Buren between Sevier and Bay Road Electrical relocation work; Equipment staging
Full roadway closure and detour
January-February 2017 7 am-6 pm, some work occurring on weekends
Bay Road between Van Buren and Willow Road Electrical relocation work; Under grounding of overhead electric lines
Partial roadway closure (one lane for both directions with traffic control personnel)
Late January/early February Late January, on Sunday morning, date TBD

U.S. 101 at Willow Road Electrical relocation work; Work on overhead electric lines
Full closure