Warm Springs Extension Project Overview

Warm Springs / South Fremont Station Entry Rotunda


Artist's Rendering of the BART Warm Springs / South Fremont Station Entry Rotunda Learn more about the Warm Springs Art Program


WSX Quick Links - Use the links below to quickly navigate to an item.

CONSTRUCTION SCHEDULE UPDATE - Click to get the latest update on the construction schedule for the Warm Springs Extension Project.

Construction Updates & Photos - Vist our Construction Updates Section for updates and photos of progress on construction of the Warm Springs Extension.

Warm Springs Extension Virtual Tour - Take a quad copter ride down the Warm Springs Extension project alignment and around the new Warm Springs/South Fremont Station!

Warm Springs Project Construction Cameras - Live Images Now!

Warm Springs Extension Contract Information - Get information regarding contracting opportunities for the Warm Springs Project.

Read our contractor success story - Mosiac Global Transportation

Sign up for email news and updates about the BART Warm Springs Extension Project.

BART Board Selects Warm Springs/South Fremont Station As Name For New Station

Warm Springs / South Fremont Station
Warm Springs/South Fremont Station Rendering

The BART Board of Directors voted to officially name the new station constructed by the BART Warm Springs Extension the Warm Springs/South Fremont Station. Read more about the BART Board's decision.


Project Overview

The Warm Springs Extension will add 5.4-miles of new tracks from the existing Fremont Station south to a new station in the Warm Springs District of the City of Fremont, with an optional station to be located approximately midway, in the Irvington District. The optional Irvington Station is dependent upon future funding through the City of Fremont and may be added at a later date. For more information on the Irvington Station, visit the City of Fremont website at http://www.fremont.gov.

The project alignment will cross over Walnut Avenue; under Stevenson Boulevard, Fremont Central Park and the Union Pacific Railroad track in a subway; over Paseo Padre Parkway; under Washington Boulevard; under Auto Mall Parkway; and over South Grimmer Boulevard.

Get a detailed description and images of the Warm Springs Extension Alignment.

The Warm Springs/South Fremont Station will feature an at-grade island platform with an overhead concourse, intermodal access to Valley Transit Authority (VTA) and Alameda-Contra Costa Transit (AC Transit) buses, as well as taxi and "kiss and ride" passenger drop off areas, all via Warm Springs Boulevard. The new station will also provide approximately 2,000 parking spaces. Get the Warm Springs/South Fremont Station Conceptual Design.

As with all BART stations, the Warm Springs/South Fremont Station will be fully accessible to pedestrians and bicyclists, and will include bike lockers, elevators and escalators, Braille signs and a tactile sight path to aid riders with disabilities.

In keeping with the Federal Transit Administration (FTA) guidelines to incorporate art into mass transit projects, BART has commissioned artwork from professional artists for the new Warm Springs/South Fremont Station and for the concrete seating areas at the existing Fremont Station. Learn more about the Warm Springs Art Program.


Project Background

Warm Springs / South Fremont Station Exit at Rotunda
Warm Springs/South Fremont Station Exit at Rotunda Rendering

In 1992 the BART Board of Directors certified the Final Environmental Impact Report (EIR) and adopted the extension; however, the project was not constructed because sufficient funds were not available. In 2006 the project completed an environmental review under the National Environmental Policy Act (NEPA). This was in addition to the California Environmental Quality Act (CEQA) clearance that was completed in 2003. Read the history of the Warm Springs Extension environmental process and a chronology of the Warm Springs Extension project.

In 2007 BART devised an implementation strategy whereby the project would be constructed via two large contracts: The Fremont Central Park Subway Contract and the Line, Track, Station and Systems Contract. This approach is intended to minimize overall escalation costs and most appropriately deal with the special needs associated with the underground portion of the project in Fremont Central Park.


Fremont Central Park Subway Contract

Fremont Central Park Project Rendering & Aerial

The Fremont Central Park Subway Contract (Subway) includes a mile-long subway beneath Fremont Central Park, an embankment for the BART trackway, two ventilation structures and relocation of recreational facilities within Fremont Central Park. The contract work area extends from just south of Walnut Avenue, through Stevenson Boulevard and Fremont Central Park, including a portion of Lake Elizabeth, and to the east side the Union Pacific Railroad (UPRR) freight tracks just north of Paseo Padre Parkway. The BART Board awarded the Subway Contract to the Shimmick/Skanska Joint Venture on May 28, 2009 for the low bid of $137 million and the contract was completed on schedule.

Line, Track, Station and Systems Contract

Warm Springs/South Fremont Station Overview
Warm Springs/South Fremont Station Rendering

The Line, Track, Station and Systems (LTSS) Contract is a design-build contract intended to perform the final design as well as construct the remaining parts of the Warm Springs Extension, including the trackway, systems, tie-in at the Fremont Station, and the new Warm Springs/South Fremont Station and parking lot. This contract will also include certain provisions to facilitate both the further extension of BART into Santa Clara County (by VTA), and the possible future construction of an intermediate station in the Irvington District (subject to funding by the City of Fremont).

The Warm Springs/South Fremont Station, including the surrounding site, is being carefully designed to promote both multi-modal and disabled access as well as to accommodate potential future transit oriented development. The station will meet not only BART's Facility Design Standards, but also the expectations of the BART Bicycle Task Force, the BART Disability Task Force, and the accessibility requirements of the State Architect.  Furthermore, the site development will be well integrated within the surrounding infrastructure, both existing and planned.  The conceptual and preliminary design of the station itself has been the work of Robin Chiang & Company of San Francisco, architectural sub-consultant of BART's General Engineering Consultant, Parsons Brinckerhoff, Inc.  The open and gracefully geometric design, coupled with ample landscaping and a public art component, is intended to capture both the spirit and energy of BART, as well as the history and culture of the Warm Springs District of Fremont. This design concept will now be completed and detailed by the Design-Build contractor's architect, HNTB, as part of the execution of the LTSS contract.


Tail Track Building Demolition Contract

This contract removed or modified various existing structures along Warm Springs Court in preparation for construction of the BART trackway south of the Warm Springs/South Fremont Station. In October 2011, the contract was awarded to Parc Services of Livermore, CA, for $1.06 million. The contract was completed on schedule in October 2012.


Partners and Funding

The total project budget for the Warm Springs Extension is approximately $890 million. The various funding partners and their share in the total project are as follows:

Sufficient funding for all project construction has been secured.

Warm Springs Extension Construction Schedule

Major construction on the Warm Springs Extension began in August of 2009 with the commencement of the Fremont Central Park Subway Contract. The Subway Contract was completed in April 2013. Construction of the design-build Line, Track, Station and Systems (LTSS) contract, which began in October of 2011, is expected to be physically completed in Spring of 2016. The Warm Springs Extension will open for revenue service following a period of rigorous testing and CPUC approval. When available, the anticipated opening date will be posted here.

For information on construction activities visit our Construction Updates Page.


Other Related Projects

Washington Boulevard and Paseo Padre Parkway Railroad Grade Separation Project Update

In May 2010 the City of Fremont completed the Washington Boulevard and Paseo Padre Parkway Railroad Grade Separation Project. The grade separation at Paseo Padre Parkway included an overpass for future BART trains, and was constructed by the City of Fremont via an agreement with BART to avoid future disruption during construction of the Warm Springs Extension. The Grade Separation project eliminated six railroad grade crossings, relocated interfering utilities and made the railroad corridor to the southeast of Fremont Central Park compatible with the WSX project alignment.

Silicon Valley Rapid Transit Corridor Project

This project is intended to extend BART service southward from Warm Springs to Milpitas, San Jose and Santa Clara. This project is sponsored by the Santa Clara County Valley Transportation Authority (VTA), which is responsible for its implementation under an agreement with BART. For more information on this project please visit www.vta.org/bart.


Warm Springs Extension Contracting Opportunities

Line, Track, Station and Systems Design-Build Contract

The Request for Qualifications (RFQ) for the BART Warm Springs Extension Line, Track, Station and Systems (LTSS) Contract Number 02EE-120 was advertised on April 6, 2010. Qualifications statements were received on May 18, and on July 8 the BART Board prequalified five Prospective Design-Build Entities (PDBEs). On September 24, 2010 BART issued the Request for Proposals (RFP)  and bids were received on January 25, 2011. On June 23, 2011 the BART Board of Directors voted to authorize award of the Line, Track, Station and Systems Design-Build Contract to Warm Springs Constructors (Kiewit/Mass, JV), subject to execution of project funding agreements. Funding agreements with Santa Clara Valley Transportation Authority (SCVTA), MTC and the Alameda County Transportation Commission (ACTC, formerly ACTIA) were executed in September and the contract was awarded on September 19, 2011. Notice to Proceed was given on October 5, 2011.

For information regarding subcontracting opportunities, please contact:

BART Non Discrimination Program
Ronnie Rhoe
Senior Analyst

Phone: 510-464-7536
Fax: 510-464-7673
Email: rrhoe@bart.gov

Get a list of the companies on the Warm Springs Constructors Team.

Learn more about the LTSS Contract.


Last Updated: March 21, 2016