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I-280/Wolfe Road Interchange

In its current state, the I-280/Wolfe Road Interchange is severely congested and was projected to operate at a poor level of service as local developments continued to outpace the capacity of the existing infrastructure. As the primary point of access for the Apple Park Campus and Vallco Shopping Center, the interchange serves as a gateway to the City of Cupertino. Working closely with the City and VTA, HMH quickly recognized the need for seamless implementation of complete streets elements and thorough consideration of the bicycle and pedestrian user experiences critical to the long-term success of the project.
HMH has led this project since conception, performing an Alternatives Analysis and PSR-PDS, clearing the project under a CE/CE and securing approval of the PR, and performing PS&E and Right-of-Way Engineering, including condemnation support and advance utility relocation. The Project has secured PS&E approval (conditional) and is positioned to be bid July, 2024.
Early in the environmental phase, HMH successfully reduced the project to only one viable Build Alternative and managed to avoid impacts in the Junipero Serra Channel which crosses through the interchange. These achievements allowed the project to downscope the environmental phase to a CE/CE, saving hundreds of thousands of dollars.
The project has been included in Caltrans District 4 Bike Plan Update (2023) as a Best Practices Guide for interchange treatments and includes off-street, curb separated, Class IV bikeways and wide sidewalks.
To protect the Junipero Serra Channel box culvert, the project implemented lightweight cellular concrete to load balance the new embankment fill required for the raised, precast girder structure and ADA compliant profile.