Overview
Located in southern Santa Clara County, the Santa Teresa Boulevard Extension project would provide a new direct connection from the area south of the City of Gilroy to US 101 and SR 25, and bypass existing bottlenecks further north along US 101. The extension project will complement the upcoming US 101/SR 25 interchange Phase 1 project that will remove the existing connection between Santa Teresa Boulevard and Castro Valley Road with US 101.
The extension project would also establish a new bike lane connection between Gilroy, SR 25, and destinations further south that would allow bicyclists to avoid using the shoulders of US 101 in this area as they currently do today, providing a much-improved connectivity gateway to encourage bicycle use along this corridor.
Objectives
- Provide new vehicle and bicycle connectivity between Santa Teresa Boulevard and the US 101/SR 25 interchange.
- Reduce congestion on US 101 between the US 101/SR 25 and US 101/Monterey Road interchanges
- Enhance local and regional access to the US 101 trade corridor.
Project Features
The project would construct a new two-lane roadway connection from Santa Teresa Boulevard, just north of Castro Valley Road, to the upcoming US 101/SR 25 interchange Phase 1 project. The two-way Santa Teresa Boulevard Extension would widen to four lanes as it approaches the SR 25/Southbound US 101 ramps intersection to match the proposed roadway width at the interchange. The roadway would accommodate bike lanes in both directions and require reconstruction of the Santa Teresa Boulevard/Castro Valley Road intersection.
Community Outreach
For more information on this project, please call VTA’s Community Outreach at (408) 321-7575, (TTY) 408-321-2330, or community.outreach@vta.org.
Notice of Preparation and Public Scoping Meeting (August 11, 2026 at 6:00 PM)
The purpose of the Notice of Preparation (NOP) is to inform the public that the Santa Clara Valley Transportation Authority (VTA) and the California Department of Transportation (Caltrans) will prepare a joint Environmental Impact Report (EIR)/Environmental Assessment (EA) for the US 101/SR 25/Santa Teresa Boulevard Extension Project (Project).VTA is the Lead Agency under the California Environmental Quality Act (CEQA), and Caltrans is the Lead Agency under the National Environmental Policy Act (NEPA). VTA, as CEQA Lead Agency, is issuing a Notice of Preparation.
Public Scoping Meeting (August 11, 2026 at 6:00 PM)
You are invited to attend a public scoping meeting on Tuesday, August 11, 2026, at the Gavilan College Student Center Lounge at 5055 Santa Teresa Boulevard, Gilroy, California 95020, from 6:00 p.m. to 7:00 p.m. The purpose of the meeting is to provide an overview of the Project and schedule and to gather input on the scope and content of the Draft Environmental Impact Report/Environmental Assessment (Draft EIR/EA) that will be prepared for the Project. A presentation will be given, followed by an open house for the public to ask questions and provide comments.
You can register to attend the in-person public scoping meeting here. Individuals who require language translation, American Sign Language, or other assistance are requested to contact VTA Community Outreach at (408) 321-7575, or TTY for the hearing impaired at (408) 321-2330, or email us at community.outreach@vta.org at least five (5) business days before the public information meeting.
Attendance at the scoping meeting is not required to submit comments on the scope and content of the environmental document.
Comments can also be sent by email or mail as follows:
Email: 101-santateresa@vta.org
Mail:
- Santa Clara Valley Transportation Authority
- Attn: Alex Bode
- 3331 N. First Street, San Jose, CA 95134, Building B-2
The deadline for receiving comments on the Project scope is Monday, August 24, 2026, by 5:00 p.m. For more information, please refer to the Notice of Preparation.
Funding
The total cost for this project is estimated to be approximately $50 million for environmental clearance, design, right-of-way property acquisitions, and construction. The environmental clearance phase of the project is currently funded with a combination of VTA 2016 Measure B funds and federal funds.
Additional funding will need to be secured for phases beyond environmental clearance. The total project cost is contingent on the final determination of improvements to be constructed.
Schedule
- Environmental | 2025 - 2027
- Design* | 2027 - 2029
- Construction* | 2029 – 2031
* Full funding has not yet been identified.
Overview
Located in southern Santa Clara County, the Santa Teresa Boulevard Extension project would provide a new direct connection from the area south of the City of Gilroy to US 101 and SR 25, and bypass existing bottlenecks further north along US 101. The extension project will complement the upcoming US 101/SR 25 interchange Phase 1 project that will remove the existing connection between Santa Teresa Boulevard and Castro Valley Road with US 101.
The extension project would also establish a new bike lane connection between Gilroy, SR 25, and destinations further south that would allow bicyclists to avoid using the shoulders of US 101 in this area as they currently do today, providing a much-improved connectivity gateway to encourage bicycle use along this corridor.
Objectives
- Provide new vehicle and bicycle connectivity between Santa Teresa Boulevard and the US 101/SR 25 interchange.
- Reduce congestion on US 101 between the US 101/SR 25 and US 101/Monterey Road interchanges
- Enhance local and regional access to the US 101 trade corridor.
Project Features
The project would construct a new two-lane roadway connection from Santa Teresa Boulevard, just north of Castro Valley Road, to the upcoming US 101/SR 25 interchange Phase 1 project. The two-way Santa Teresa Boulevard Extension would widen to four lanes as it approaches the SR 25/Southbound US 101 ramps intersection to match the proposed roadway width at the interchange. The roadway would accommodate bike lanes in both directions and require reconstruction of the Santa Teresa Boulevard/Castro Valley Road intersection.
Community Outreach
For more information on this project, please call VTA’s Community Outreach at (408) 321-7575, (TTY) 408-321-2330, or community.outreach@vta.org.
Notice of Preparation and Public Scoping Meeting (August 11, 2026 at 6:00 PM)
The purpose of the Notice of Preparation (NOP) is to inform the public that the Santa Clara Valley Transportation Authority (VTA) and the California Department of Transportation (Caltrans) will prepare a joint Environmental Impact Report (EIR)/Environmental Assessment (EA) for the US 101/SR 25/Santa Teresa Boulevard Extension Project (Project).VTA is the Lead Agency under the California Environmental Quality Act (CEQA), and Caltrans is the Lead Agency under the National Environmental Policy Act (NEPA). VTA, as CEQA Lead Agency, is issuing a Notice of Preparation.
Public Scoping Meeting (August 11, 2026 at 6:00 PM)
You are invited to attend a public scoping meeting on Tuesday, August 11, 2026, at the Gavilan College Student Center Lounge at 5055 Santa Teresa Boulevard, Gilroy, California 95020, from 6:00 p.m. to 7:00 p.m. The purpose of the meeting is to provide an overview of the Project and schedule and to gather input on the scope and content of the Draft Environmental Impact Report/Environmental Assessment (Draft EIR/EA) that will be prepared for the Project. A presentation will be given, followed by an open house for the public to ask questions and provide comments.
You can register to attend the in-person public scoping meeting here. Individuals who require language translation, American Sign Language, or other assistance are requested to contact VTA Community Outreach at (408) 321-7575, or TTY for the hearing impaired at (408) 321-2330, or email us at community.outreach@vta.org at least five (5) business days before the public information meeting.
Attendance at the scoping meeting is not required to submit comments on the scope and content of the environmental document.
Comments can also be sent by email or mail as follows:
Email: 101-santateresa@vta.org
Mail:
- Santa Clara Valley Transportation Authority
- Attn: Alex Bode
- 3331 N. First Street, San Jose, CA 95134, Building B-2
The deadline for receiving comments on the Project scope is Monday, August 24, 2026, by 5:00 p.m. For more information, please refer to the Notice of Preparation.
Funding
The total cost for this project is estimated to be approximately $50 million for environmental clearance, design, right-of-way property acquisitions, and construction. The environmental clearance phase of the project is currently funded with a combination of VTA 2016 Measure B funds and federal funds.
Additional funding will need to be secured for phases beyond environmental clearance. The total project cost is contingent on the final determination of improvements to be constructed.
Schedule
- Environmental | 2025 - 2027
- Design* | 2027 - 2029
- Construction* | 2029 – 2031
* Full funding has not yet been identified.
Timeline
Title
Environmental Clearance
Phase Date Range
-
-
Tuesday, August 11, 2026, at the Gavilan College Student Center Lounge at 5055 Santa Teresa Boulevard, Gilroy, California 95020, from 6:00 p.m. to 7:00 p.m.
-
The purpose of the meeting is to provide an overview of the Project and schedule and to gather input on the scope and content of the
-
You can register to attend the in-person public scoping meeting
here. -
Individuals who require language translation, American Sign Language, or other assistance are requested to contact VTA Community Outreach at (408) 321-7575, or TTY for the hearing impaired at (408) 321-2330, or email us at community.outreach@vta.org at least five (5) business days before the public information meeting.
Title
Design and Engineering
Phase Date Range
-
Title
Construction
Phase Date Range
-
Funding
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