Interstate 205 Smart Corridor – Phase 2

Project Description

This project will add on to previous Intelligent Transportation System (ITS) projects, which installed vehicle detection and a communications infrastructure, and complete an instrumented corridor that can better manage traffic through the region. The primary focus of this project is to install ramp meters at on-ramps on Interstate 205 (I-205). Ramp meters will automatically control vehicle access onto the freeway system during peak times. By restricting vehicle demand, the onset of congestion on the mainline will be delayed and the overall level of congestion observed will be reduced.


Purpose and Need

The purpose of this project is to alleviate both recurring (AM and PM peak hour) and non-recurring congestion along I-205 in San Joaquin (SJ) County through the deployment of Intelligent Transportation Systems (ITS) elements. This project is needed to maximize mobility in this segment. Mobility benefits include reliable travel times with increased speed and improved corridor productivity, safety, and preservation. Implementation of this project may also improve air quality and reduce greenhouse gases in the SJ Valley.


Funding Source

The project is funded in the State Highway Operation and Protection Program (SHOPP), Traffic Operations Improvement Program.


Project Cost/Programmed

Programed Project Cost Capital $$ Support $$
Project Approval & Environmental Document $0 $1,649,000
Plans, Specifications, & Estimates $0 $3,925,000
Right of Way  $2,010,000 $979,000
Construction  $20,440,000 $6,562,000


Current Schedule

Process Date
Project Study Report (M010) Summer 2014 (Actual)
Project Approval & Environmental Document (M200) Fall 2018 (Actual)
Right of Way Certification (M410) Summer 2021 (Actual)
Ready – to – List (M460) Summer 2021 (Actual)
Begin Construction  (M500) Summer 2022 (Actual)
End Construction  (M600) Spring 2024


Project Status

Approve Contract was on May 3, 2022. Construction started in June 2022.


Project Contact

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


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.