Skip navigation
navigation section title graphic for programs
navigation section title graphic for resources
navigation section title graphic for services

navigation section title graphic for newsletter
Subscribe by entering your

Read newsletter

Public Transit

Mid-Coast Trolley

Mid-Coast Corridor Transit ProjectFollow us on Twitter and like us on Facebook for the latest project news and updates.

Preliminary Construction Underway

Preliminary Mid-Coast Trolley construction activities are underway and include relocating utilities to make way for construction of the Trolley tracks and guideway on the aerial portion of the route. Major construction is expected to start in the second half of 2016.

Visit for the latest construction information.

Project Overview

The Mid-Coast Trolley will extend service from Santa Fe Depot in Downtown San Diego to the University City community, serving major activity centers such as Old Town, the University of California, San Diego (UCSD), and Westfield UTC. Primary construction of the project is expected to begin in the second half of 2016, with service anticipated to begin in 2021.

Freeways and arterials in the Mid-Coast Corridor are generally congested and traffic congestion is projected to increase more as the region grows. The population along the corridor is predicted to increase 19 percent by the year 2030, while employment is predicted to increase 12 percent.

The Mid-Coast Trolley will expand transportation capacity in the corridor to accommodate existing and future travel demand, particularly for peak-period commute trips. The project will provide an effective alternative to congested freeways and roadways for travelers and will reduce vehicle miles traveled.

The University City area has developed as a major employment and high density residential area, similar to Downtown San Diego. Although University City is considered San Diego’s second downtown and UCSD is one of the region’s largest trip generators, neither is directly served by regional transit. The Mid-Coast Trolley extension will provide efficient transit connections to University City, UCSD, as well as frequent and reliable, Trolley service throughout the corridor. Effective transit that is competitive with the automobile will attract riders to transit, improve regional mobility, and help maintain and enhance San Diego’s quality of life.

The Trolley extension route begins just north of the Old Town Transit Center and travels in existing railroad right-of-way and alongside Interstate 5 to Gilman Drive. It crosses to the west side of I-5 just south of Nobel Drive and continues on to the UCSD campus, crosses back to the east side of I-5 near Voigt Drive to serve the UCSD east campus and Scripps Memorial Hospital, transitions into the median of Genesee Avenue, and continues down Genesee Avenue to the Westfield UTC transit center (view map). 

SANDAG has worked with the community to refine and develop designs for each station. View presentations made to corridor planning groups highlighting the design features of stations in the University Community, Pacific Beach, Clairemont, and Linda Vista.

Nine new stations will be constructed at Tecolote Road, Clairemont Drive, Balboa Avenue, Nobel Drive, VA Medical Center, Pepper Canyon (serving UCSD west campus), Voigt Drive (serving UCSD east campus), Executive Drive, and the Terminus Station at the Westfield UTC Transit Center.

The project will connect corridor residents with other Trolley lines serving Mission Valley, East County, and South County. As an extension of the existing Metropolitan Transit System Trolley Blue Line, it will offer a one-seat (no transfer) ride from the international border and communities south of Downtown San Diego all the way to University City. This new service will enhance direct public access to other regional activity centers and improve travel options to employment, education, medical, and retail centers for corridor residents, commuters, and visitors.

Project Status

In fall 2014, the Mid-Coast Trolley received its final environmental clearance from the SANDAG Board of Directors and the Federal Transit Administration (FTA).

The FTA approved the project’s entry into final engineering in April 2015. SANDAG is now working to secure a full funding grant agreement (FFGA) from the FTA’s New Starts program. Anticipated in mid 2016, the FFGA would provide 50 percent of the project funding. The other half of the funding will be provided by TransNet, the San Diego region’s voter-approved half-cent sales tax for transportation improvements. Including financing, the current budget for the project is approximately $2 billion.

Contracting Opportunities

In May 2014, the SANDAG Board of Directors selected Mid Coast Transit Constructors, a joint venture firm of Stacy & Witbeck, Inc., Skanska USA, and Herzog Contracting Corporation, to serve as the construction manager/general contractor for the project.

Companies interested in contracting opportunities on the Mid-Coast Trolley project can find more information here.

Small contractors and disadvantaged business enterprises interesting in working on SANDAG projects also can find more information here.

Stay Informed

To stay up-to-date on the Mid-Coast Trolley project, you can:

Environmental Documents

Mid-Coast Corridor Transit Project Final SEIS/SEIR – October 2014

Notice of Availability of the Mid-Coast Corridor Transit Project Final SEIS/SEIR – October 2014 (English)

Notice of Availability (abridged) of the Mid-Coast Corridor Transit Project Final SEIS/SEIR – October 2014 (Spanish)

Mid-Coast Corridor Transit Project SEIS - Supplement to the SEIR - July 2014

Report only
Appendices A-C only

Draft SEIS/SEIR - May 2013
Notice of Availability: English | En Español - May 2013
Notice of Completion - May 2013
NEPA Scoping Report - October 2011
CEQA Scoping Report - July 2010

Final Comparative Evaluation of Alternatives Report

Table of Contents and Executive Summary
Chapter 1 Purpose and Need
Chapter 2 Process for Development and Screening of Alternatives
Chapter 3 Identification and Screening of Initial Alternatives
Chapter 4 Conceptual Alternatives Considered
Chapter 5 Analysis of Transportation, Environmental, Cost and Financial Considerations (pages 1 - 50)
Chapter 5 Continued (pages 51 - 102)
Chapter 6 Evaluation of Conceptual Alternatives
Chapter 7 Review and Selection of Alternatives for Scoping
Chapter 8 Public Outreach, Scoping Process, and Scoping Comments
Chapter 9 Recommended Locally Preferred Alternative and Alternatives for Evaluation in Draft SEIS/SEIR
Appendix A Conceptual Plans
Appendix B References


Mid-Coast Corridor Project
Balboa Extension and Nobel Drive COASTER Station

Volume I | Volume II


Mid-Coast Corridor
Alternative Analysis / Draft Environmental Impact Statement /
Draft Environmental Impact Report / Final Environmental Impact Statement

Cover | Executive Summary
Chapter 1 - Purpose and Need
Chapter 2 - Alternatives Considered
Chapter 3 - Affected Environment
Chapter 4 - Transportation Impacts
Chapter 5 - Environmental Consequences
Chapter 6 - Financial Analysis and Evaluation of Alternatives

Final Environmental Impact Report for the Mid-Coast Corridor

Mid-Coast Corridor Transit Project E-newsletter

April 2015 | November 2014 | October 2014 | October 2014 | August 2014 | July 2014 | June 2014 | Winter 2014 | November 2013 | May 2013 | Fall 2012 | Spring 2012 | Fall 2011Summer 2011 | December 2010 | August 2010 | July 2010 | June 2010 | May 2010 | April 2010 | March 2010 | February 2010 | December 2009/January 2010 | November 2009 | October 2009

Project Manager

David Hicks, Communications Manager
Phone: (619) 699-6939, Email:

Greg Gastelum, Project Development Program Manager
Phone: (619) 699-7378 , Email:

Leslie Blanda, Project Development Program Manager
Phone: (619) 699-6907, Email:

For media inquiries, please contact David Hicks at (619) 699-6939 or