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SR 710 North Study

The Final Environmental Impact Report/Environmental Impact Statement (Final EIR/EIS) for the State Route 710 North Project is now available to view and identifies the Transportation System Management/Transportation Demand Management.

Next Steps

Metro will coordinate efforts with the various cities to begin implementation of the TSM/TDM projects identified in the Final EIR/EIS.

In response to the May 2017 Metro Board motion , Metro staff will also work with the cities/project sponsors to develop and implement eligible mobility improvement projects to bring immediate relief.


In 2008, two -thirds of Los Angeles County voters approved the local sales tax Measure R which mandated transportation upgrades throughout the County. Measure R specifically allocated $780 million for SR 710 North traffic congestion relief efforts.

Since the inception of project, Caltrans and Metro have been working in partnership to alleviate mobility constraints and traffic congestion in this study area that encompasses western San Gabriel Valley and the east/northeast area of Los Angeles.

Caltrans, the lead agency responsible for compliance with California Environmental Quality Act (CEQA) and National Environmental Policy Act (NEPA) requirements, released the Draft Environmental Impact Report/Statement (EIR/EIS) on March 6, 2015 and a Focused Recirculated Draft Environmental Impact Report/Supplemental Draft Environmental Impact Statement [Focused RDEIR/SDEIS] in May 2018.

Five alternatives were studied:

  1. No Build – includes projects/planned improvements already programmed
  2. Transportation Systems Management/Transportation Demand Management (TSM/TDM) – includes operational improvements throughout the study area
  3. Bus Rapid Transit (BRT) – 12 mile corridor between East Los Angeles and Pasadena
  4. Light Rail Transit (LRT) – 7.5 mile corridor between East Los Angele and Pasadena
  5. Freeway Tunnel (with design and operational variations) – 6.3 mile route to connect existing 710 freeway stubs

More than 300 meetings and/or briefings with community groups/organizations, members of the public and elected officials were held for the project. Caltrans received more than 8,000 comments about the project, including written comments, formal letters, emails, speaker/comment cards, verbal testimonies and online submittals.

Given the funding constraints, the Metro Board of Directors introduced a motion in May 2017 to bring immediate relief to corridor cities affected by the gap in the 710 freeway by implementing mobility improvements that could be funded with existing resources. Through the motion, the Metro Board approved:

  • Adopting the TSM/TDM Alternative as the Locally Preferred Alternative and deferring a decision on any other alternative for future consideration until the communities are in agreement on the alternative and funding is identified
  • Reallocating the remaining Measure R funds to mobility improvement projects that will relieve congestion resulting from the SR 710 gap in the transportation system within the SR 710 North Study Area, with priority given to projects that are proximate to Interstate 10.
  • Allocating other state and federal funds dedicated for the project for mobility improvement projects in the Central sub-region, including Unincorporated East Los Angeles.
  • Initiating the identification of projects to be funded through the SR 710 Rehabilitation Account (derived from the sale of Caltrans-owned homes along the corridor), as prescribed in Government Code 54237.7.

Caltrans concurred with the Metro Board of Directors by selecting the TSM/TDM Alternative as the Preferred Alternative for the Project.


At the May 2017 meeting, the Metro Board of Directors allocated the remaining Measure R Funds made available for the SR 710 North Gap Closure or “Tunnel” Project to new mobility improvement projects [MIPs] identified within the San Gabriel Subregion.  In addition, special funding was allocated for new MIPs identified in the Central subregion [including Unincorporated East Los Angeles]. This action resulted in making  approximately $1B available for  approximately 100 eligible Mobility Improvement Projects (MIPs) consistent with the guidelines in Board Motion 29.1 .

Board Motion 29.1 stipulates newly proposed MIPs not included in the SR 710 North Final Environmental Document will have to undergo their own environmental process and clearance. Projects from y the County of Los Angeles and Cities of Alhambra, Los Angeles, Monterey Park, Pasadena, Rosemead, San Gabriel and South Pasadena were submitted for funding and evaluated by Metro staff based on the project information and anticipated benefits that were presented.

The Metro Board of Directors authorized two funding cycles for the MIPs. Cycle 1 funding was approved at the December 2018 meeting and Cycle 2 funding was approved at the September 2019 meeting:

  • Cycle 1 Funding Allocations
  • Cycle 2 Funding Allocations for San Gabriel Valley Cities
  • Cycle 2 Funding Allocations for County and City of Los Angeles

Of the 170 projects submitted by the project sponsors under the 1 st funding cycle, 51 MIPs, estimated to cost approximately $515M, were programmed and approved by the Metro Board of Directors. Of the 81 projects submitted by the project sponsors under the 2 nd funding cycle, 53 MIPs estimated to cost approximately $531M were programmed and approved by the Metro Board of Directors.

Project Sponsors include the County of Los Angeles and the cities of:

  • Alhambra
  • Los Angeles
  • Monterey Park
  • Pasadena
  • Rosemead
  • San Gabriel
  • San Marino
  • South Pasadena

Next Steps

Metro staff will continue to coordinate with the Project Sponsors (cities/county) to refine the project scopes of work, set the project implementation schedules, refine cost estimates and prepare/execute funding agreements.