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I-205 & I-580/International Parkway Interchange Projects

I-205 & I-580/International Parkway Interchange Projects logo
City of Tracy logo

Overview

The City of Tracy and the California Department of Transportation (Caltrans) are working cooperatively to examine and analyze feasible alternatives for two interchange projects within the City of Tracy’s limits.

Proposed improvements are needed due to increased traffic demands from existing commercial development and planned future growth in San Joaquin County. The proposed I-205 & I-580/International Parkway Interchange Projects will reduce congestion resulting from ongoing and planned development of the Cordes Ranch Specific Plan and improve local traffic circulation.

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I-205 Interchange Project
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I-580 Interchange Project

Latest Updates

Oct. 19, 2020. Thank you to everyone that commented on the Draft Environmental Documents (DEDs). Both projects are expected to be environmentally cleared by the end of 2020. There will be more opportunities in the future to provide input. To stay updated, click here to be added to the projects’ contact database.

Vicinity Map

Click on each colored circle below to learn more Map showing location of the I-205 Interchange Project at the instersection of International Parkway and I-205, and the I-580 Interchange Project at the intersection of I-580 and International Parkway. The City limits of Tracy are also shown.

Key Milestones

Summer 2020:Preliminary Engineering/Draft Environmental Documents (DEDs).Summer 2020:Public Review of DEDs.Fall 2020:Final Initial Study/ Mitigated Negative Declaration (IS/MND) and Categorical Exclusion. Winter 2020:Project Report/ Project Approval Complete. Fall 2021:Right-of-Way Certification Complete. Summer 2022 to Winter 2023: Construction. Ongoing throughout the Project: Public Outreach and Engagement

Planning and Design

Environmental Planning

The I-205 & I-580/International Parkway Interchange Projects are currently in the environmental phase, which means that the proposed alternatives are being analyzed for potential environmental impacts as required by the National Environmental Protection Act (NEPA) and the California Environmental Quality Act (CEQA). This environmental analysis looks at a wide range of resource areas such as air quality, noise, community, and land use to identify potential impacts and establish clear mitigations prior to approval to move the projects forward.

Caltrans, the CEQA and NEPA lead agency for the I-205 & I-580/International Parkway Interchange Projects, circulated both projects’ DEDs for public review in July 2020. Caltrans is now reviewing public comments in order to provide official responses in the Final Environmental Documents (FEDs). Both projects are expected to be environmentally cleared by the end of 2020.

Interstate 205 (I-205) Build Alternative


Click or swipe through the cards below to learn more about the proposed alternative design solution for this intersection.

Interstate 580 (I-580) Build Alternative

Click or swipe through the cards below to learn more about the proposed alternative design solution for this intersection.

I-205 & I-580 No-Build Alternative

Read the card below to learn more about the No-Build Alternative design solution for these intersections.

Under the No-Build Alternative, the existing interchanges for both I-205 and I-580 would remain unchanged except for planned and programmed improvements. Impacts from traffic associated with the Cordes Ranch Specific Plan would not be addressed and other mitigation for impacts of the specific plan would need to be identified.

I-205 at Mountain House Parkway/ International Parkway Interchange

I-205 No Build Existing

I-580 and International Parkway/Patterson Pass Road

I-580 No Build Existing

Resources


Frequently Asked Questions about I-205

What is the I-205/International Parkway interchange project?

The project proposes to convert the existing hybrid tight-diamond/loop interchange at Interstate 205 (I-205) and Mountain House/International Parkway in the City of Tracy to a partial cloverleaf interchange (Type L-9) due to increased traffic demands from existing commercial development and planned future growth in San Joaquin County. The proposed project will reduce congestion resulting from ongoing and planned development as well as improve local traffic circulation.

Who is responsible for this project?

The City of Tracy is the lead implementing agency, working cooperatively with the California Department of Transportation (Caltrans) to examine and analyze feasible alternatives for the project. Caltrans is the CEQA and NEPA Lead agency.

Why is this project needed?

The proposed project is needed to accommodate the increase in traffic demand projected as part of the planned development in the Cordes Ranch Specific Plan Area, elsewhere in the city of Tracy, Mountain House Community Services District, San Joaquin County, and neighboring counties.

The Cordes Ranch Specific Plan Environmental Impact Report concluded that traffic resulting from the specific plan development would cause a significant impact on the intersections of Mountain House Parkway and the westbound on-ramps and off-ramps of I-205, and International Parkway and the eastbound on­ramp of I-205. The environmental impact report proposed mitigation to reduce the level of these impacts. The information provided below is based on the Traffic Operations Analysis Report prepared for this project in August 2019.

What happens during the circulation of the Draft Environmental Document?

As part of the environmental analysis process, proposed alternatives were analyzed for potential environmental impacts as required by the National Environmental Protection Act (NEPA) and the California Environmental Quality Act (CEQA) and documented in the Draft Environmental Document (DED). The environmental analysis included a wide range of resource areas such as air quality, noise, community, and land use to identify potential impacts and establish clear mitigations prior to approval to move the project forward. Caltrans is the CEQA and NEPA lead for the project. For questions concerning the environmental process, please contact Jennifer Lugo, Senior Environmental Planner, at (559) 445-6172 or email us.

What does the Draft Environmental Document identify?

The DED identifies two alternatives (Build and No-Build), their associated environmental impacts, and subsequent mitigation measures established to minimize potential impacts. The DED was circulated in July 2020 for a 30-day public comment period. Comments received are being addressed in the Final Environmental Documents (FEDs).

What is the schedule for the project?
  • Preliminary Engineering/DED: Summer 2020
  • Public Review of DED: Summer 2020
  • Final Initial Study/Mitigated Negative Declaration (IS/MND) and Categorical Exclusion: Fall 2020
  • Project Approval & Environmental Document (PA&ED) Complete: Winter 2020
  • Right-of-Way Certification Complete: Fall 2021
  • Construction: Summer 2022 to Winter 2023
  • Public Outreach: Ongoing throughout the Project
When will the project be built?

Construction for the project is anticipated to begin in August 2022 and be completed by December 2023.

How much will the project cost?

The estimated total Build Alternative cost is $52.858 million.

How will the project be funded?

The project will be funded through the City’s Transportation Impact Mitigation Fee, City’s Regional Transportation Impact Fee, and SJCOG Measure K.

How can the public participate in the planning effort?

The City and Caltrans are committed to meaningful public engagement throughout the project. Community participation is vital so that project solutions serve our regional needs. The project’s communications program is designed to provide convenient and timely information to educate and inform, as well as seek public participation throughout the planning process.

How will information be shared?

New information will be distributed electronically through the website at 205and580interchanges.com as well as via the City’s social media and project email. Sign-up online to receive electronic updates.

How can I stay informed?

You can stay informed by visiting 205and580Interchanges.com and subscribing for electronic updates. For questions or additional information, please email us


Frequently Asked Questions about I-580

What is the I-580/International Parkway interchange project?

The project proposes to modify the existing compact diamond (Type L‐1) interchange at Interstate 580 (I-580) and International Parkway/Patterson Pass Road in the City of Tracy to a diverging diamond interchange due to increased traffic demands from existing commercial development and planned future growth in San Joaquin County. The proposed project will reduce congestion resulting from ongoing and planned development as well as improve local traffic circulation.

Who is responsible for this project?

The City of Tracy is the lead implementing agency, working cooperatively with the California Department of Transportation (Caltrans) to examine and analyze feasible alternatives for the project. Caltrans is the CEQA and NEPA Lead agency.

Why is this project needed?

The proposed project is needed to accommodate the increase in traffic demand projected as part of the planned development in the Cordes Ranch Specific Plan area and nearby areas in Tracy, and to discourage highway traffic from using local roadways, thereby improving local circulation.

The Cordes Ranch Specific Plan Environmental Impact Report concluded that traffic resulting from the specific plan development would cause a significant impact on the intersections of International Parkway and the on-ramps and off-ramps of I-580. The environmental impact report identified mitigation measures to reduce potential impacts to a less-than-significant level. The interchange improvements would be implemented to support compliance with the environmental impact report mitigation measures. The information provided below is based on the Traffic Operations Analysis Report prepared for this project in July 2019.

What happens during the circulation of the Draft Environmental Document?

As part of the environmental analysis process, proposed alternatives were analyzed for potential environmental impacts as required by the National Environmental Protection Act (NEPA) and the California Environmental Quality Act (CEQA) and documented in the Draft Environmental Document (DED). The environmental analysis included a wide range of resource areas such as air quality, noise, community, and land use to identify potential impacts and establish clear mitigations prior to approval to move the project forward. Caltrans is the CEQA and NEPA lead for the project. For questions concerning the environmental process, please contact Jennifer Lugo, Senior Environmental Planner, at (559) 445-6172 or email us.

What does the Draft Environmental Document identify?

The DED identifies two alternatives (Build and No-Build), their associated environmental impacts, and subsequent mitigation measures established to minimize potential impacts. The DED was circulated in July 2020 for a 30-day public comment period. Comments received are being addressed in the Final Environmental Documents (FEDs).

What is the schedule for the project?
  • Preliminary Engineering/DED: Summer 2020
  • Public Review of DED: Summer 2020
  • Final Initial Study/Mitigated Negative Declaration (IS/MND) and Categorical Exclusion: Fall 2020
  • Project Approval & Environmental Document (PA&ED) Complete: Winter 2020
  • Right-of-Way Certification Complete: Fall 2021
  • Construction: Summer 2022 to Winter 2023
  • Public Outreach: Ongoing throughout the Project
When will the project be built?

Construction for the project is anticipated to begin in August 2022 and be completed by December 2023.

How much will the project cost?

The estimated total Build Alternative cost is $49.183 million.

How will the project be funded?

The project will be funded through the City’s Transportation Impact Mitigation Fee, City’s Regional Transportation Impact Fee, and SJCOG Measure K.

How can the public participate in the planning effort?

The City and Caltrans are committed to meaningful public engagement throughout the project. Community participation is vital so that project solutions serve our regional needs. The project’s communications program is designed to provide convenient and timely information to educate and inform, as well as seek public participation throughout the planning process.

How will information be shared?

New information will be distributed electronically through the website at 205and580interchanges.com as well as via the City’s social media and project email. Sign-up online to receive electronic updates.

How can I stay informed?

You can stay informed by visiting 205and580Interchanges.com and subscribing for electronic updates. For questions or additional information, please email us

Stay Informed

The City and Caltrans are committed to meaningful public engagement throughout the I-205 & I-580/International Parkway Interchange Projects. Community participation is vital so that project solutions serve our regional needs. The project’s communications program is designed to provide convenient and timely information to educate and inform, as well as seek public participation throughout the planning process.

For more information on the project, please contact:
Anju Pillai, City Project Manager
phone icon (209) 831 6455
email icon Anju.Pillai@cityoftracy.org

Sinara Pheng, Project Manager
phone icon (209) 948-7829
email icon sinarath.pheng@dot.ca.gov

For all other State Highway matters, please contact:
District 10 Public Affairs Office:
phone icon (209) 948-7977
email icon district10publicaffairs@dot.ca.gov

email iconCity of Tracy email iconCaltrans

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General Comments

Project information will be distributed electronically through the website, social media and email. If you would like to receive email updates on the I-205 & I-580/International Parkway Interchange Projects, please complete the contact form below.

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