Interstate 205 Managed Lanes Project

Graphic of project logo


For information about the Thursday, October 7, 2021 Virtual Public Meeting, please see below or click the following link:


Project Description

The California Department of Transportation (Caltrans), in cooperation with the San Joaquin Council of Governments, proposes to install managed lanes on Interstate 205 through the City of Tracy, accommodate transit hubs, and improve interchanges between post mile R1.7 on Interstate 580 and post mile R13.5 on Interstate 5. The project limits extend from the Interstate 580 and the West Grant Line Road interchange in Alameda County to the Interstate 205 and the Interstate 5 interchange in San Joaquin County. Managed lanes are highway lanes that are actively managed to respond to an area’s rapid growth. Interstate 205 in the City of Tracy has been identified as an area of heavy congestion, resulting from high truck volumes and commuters that travel to and from the Bay Area. Examples of managed lanes being considered for the proposed project include high-occupancy vehicle lanes, transit lanes, and express (or toll) lanes.

The project is proposing one No-Build Alternative and four Build Alternatives. Under the No-Build Alternative, the project would not be built, and the area would be left in its current condition. Three of the four Build Alternatives would involve widening. Build Alternative 2 would involve partial widening; Build Alternative 3 would not involve widening but would convert an existing lane into a high-occupancy vehicle lane. Build Alternatives 4 and 5 would involve widening the length of the project area and would leave a 60-foot-wide median space open for future transit improvements. Local road overcrossings, undercrossings, and interchanges would be altered or reconfigured, if necessary, based on the alternative.

Each Build Alternative may include detention or retention basins, access roads, and up to four transit hubs. Transit hub features may include park-and-ride lots, electric vehicle charging stations, and bus and train stops. Locations for transit hubs would be determined in coordination with stakeholders, which would include but would not be limited to the following: Federal Highway Administration, Caltrans, Valley Link, San Joaquin Council of Governments, City of Tracy, Community of Mountain House, Alameda County, San Joaquin County, local transit, and the interested public. The transit hubs would be located to improve access to the transit facility and avoid precluding connectivity to local communities. The proposed project could build facilities within the right-of-way, such as rail stops, to accommodate connection to the corridor, but may or may not build the actual transit hubs.


Location Map  


Project Benefits


The proposed project has the following main purposes:

  • The project would reduce traffic congestion and improve commute times on Interstate 205, resulting from Central Valley commute traffic to the Bay Area.
  • The project would facilitate more efficient goods movement on Interstate 205, resulting from increasing regional and interstate truck volumes and accompanying congestion.
  • The project would facilitate increased multimodal transportation opportunities, including carpooling and ride-sharing, while accommodating the planned development of public transit in the Interstate 205 project area.


The proposed project is needed to address the following concerns:

  • Traffic congestion and commute times on Interstate 205 continue to increase due to traffic from Central Valley counties to the Bay Area; this is caused by workers moving to Central Valley residential developments while commuting to jobs in the Bay Area.
  • Traffic volumes from truck traffic continue to increase as a result of the use of Interstate 205 as a regional and interstate truck and freight route, worsening traffic congestion.
  • The growth and development occurring in the Central Valley have increased the need for additional alternative modes of transportation to address planned growth and serve commuters to the Bay Area.


Project Cost/Programmed

 Programed Project Cost Capital $ Support $
Project Approval & Environmental Document $0 $12.5M
Plans, Specifications, & Estimates $0 $26M
Right of Way $6M to $6.6M* TBD
Construction $251 to 321M* TBD

*costs for the HOV portion only portion 


Projected Cost as of (August 18, 2020) Planned $ Expended $
Project Approval & Environmental Document $12.5M Oversight
Plans, Specifications, & Estimates $26M Oversight
Right of Way Support TBD $0
Construction Support $0 $0



  • San Joaquin Council of Governments


Current Schedule

 Process Date
Project Study Report (M010) 12/15/2017 (Actual)
Project Approval & Environmental Document (M200) Fall 2023
Right of Way Certification (M410) To Be Determined
Ready to List (M460) To Be Determined
Approved Construction Contract (M500) To Be Determined
Project Completion (M600) To Be Determined


Project Status

The Project Study Report is complete. Project Approval & Environmental Document (PA&ED) phase is being implemented by SJCOG and their consultant Kimley Horn with traffic subconsultants Fehr & Peers and environmental subconsultant ICF.  Coordination with District 4 is taking place with Regional Project Manager Jack Siauw.  Working on a Supplemental Project Initiation Document to cover the expanded project scope of work and extended project limits.  Beginning environmental and traffic studies.


Project Contact

Caltrans District 10 - Public Information Office
Phone: (209) 948-7977



Accessibility Assistance: Caltrans makes every attempt to ensure our documents are accessible. Due to variances between assistive technologies, there may be portions of this document which are not accessible. Where documents cannot be made accessible, we are committed to providing alternative access to the content. Should you need additional assistance, please contact us at (916) 654-2852 or visit


Title VI Information

The California Department of Transportation (Caltrans) assures that no person shall, on the basis of race, color, or national origin, be excluded from participation in, be denied the benefits of, or be otherwise subjected to discrimination under any program or activity receiving Federal financial assistance, as required by Title VI of the Civil Rights Act of 1964, as amended, the Civil Rights Restoration Act of 1987, and Federal Executive Order 12898 (Federal Actions to Address Environmental Justice in Minority Populations and Low-Income Populations).

Caltrans will make every effort to ensure nondiscrimination in all of its programs and activities, whether they are federally funded or not, and that services and benefits are fairly distributed to all people, regardless of race, color, or national origin. In addition, Caltrans will facilitate meaningful participation in the transportation planning process in a nondiscriminatory manner.


Virtual Public Meeting Information

A virtual scoping meeting will be held on October 7, 2021, between 6:00 pm and 8:00 pm online. A presentation will be given and there will be an opportunity to speak with the project team. Please visit the project website at to access the link for the meeting.

If you do not have access to a computer, a phone line will be available; please call (253)215-8782 (Webinar ID: 810 9558 8808) during the virtual meeting time frame.