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The San Mateo County Transportation Authority announced on Oct. 22 that they received a $105 million federal grant from the Infrastructure for Rebuilding America grant program to close a funding gap in its Woodside Road-Highway 101 interchange improvement project.
The project aims to improve safety at the intersection, as well as enhance access for varied uses, such as biking and walking. Plans call for adding over four miles of shared use paths, bike lanes and separated bikeways, as none currently exist at the interchange.
The interchange itself will also be reconstructed. All existing ramps will be replaced, and the current five-pronged intersection at Broadway and Woodside Road will be eliminated to improve traffic safety and traffic flow. Flyover ramps will be constructed in place of the current configuration.
The congestion, traffic merging issues and traffic backup onto Highway 101 at this intersection resulted in 195 collisions between 2018 and 2022, according to traffic data from the city of Redwood City.
“This is a major win for the region as the U.S. 101/SR84 Interchange Reimagined Project will have widespread mobility and safety benefits,” said U.S. Rep. Kevin Mullin in a press release. “I was honored to advocate for federal funding on behalf of this project and I congratulate all of the local stakeholders for their tireless work on this critical infrastructure improvement.”
The interchange provides access between Redwood City, North Fair Oaks, Menlo Park and Woodside, and provides access to the Port of Redwood City.
The SMCTA projects that this grant will move the funding for the project close to the necessary level, but that some additional state funds will likely be needed to complete the project. The project also received a $48 million bridge toll fund contribution from the Metropolitan Transportation Commission in June 2024. The estimated total cost for the project is $384 million.
“We are deeply thankful to U.S. Rep. Kevin Mullin for his dedication in helping secure this vital grant,” said Carlos Romero, Chair of the San Mateo County Transportation Authority Board of Directors in a statement. “This funding, which complements our San Mateo County Measure A transportation sales tax, brings us a step closer to achieving a much-anticipated project that will boost bicycle and pedestrian safety, improve traffic efficiency, and set a new benchmark for multimodal access.”
The project is currently in the final design phase, and construction is anticipated to begin as soon as 2027. Once construction begins, it is expected to last for three years.
Learn more about the project, and get progress reports, at tinyurl.com/Woodside101project.
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