× Home Overview Environmental Stations Engagement Resources Contact


About the Project

Project History

Capitol Corridor first identified the South Bay Connect route relocation in their 2014 Vision Plan as one of many other projects to improve operational efficiency, rider experience and offer opportunity to expand future service to underserved markets. Since that time, the Project has continued to be identified as an important transportation improvement for our region and included in several freight and passenger rail plans including the California State Rail Plan update. Project funding was secured in 2018 to move from Visioning into Project Development.

High-level project timeline

Regional Projects

SBC is one of many East Bay transportation planning efforts being driven by multiple partner agencies all working collaboratively towards a common goal: To provide efficient and multi-modal travel options for our diverse region offering access and connection to jobs, education, medical and more.

Project Overview Map 1 2 3 4 5 6 7 8 9 10 11 12

ACE Vision Plan San Joaquin Valley - Bay Area


VTA's – BART to San Jose Phase II extension to downtown San Jose


City of Fremont TOD Overlay – Ardenwood Satellite campus for high-tech companies near rail/bus connections


City of Fremont Centerville Station TOD Planned development with multi-modal access


MTC – Dumbarton Forward Initiative Early planning to address congestion


SamTrans – Dumbarton Rail Corridor Strategic plan to identify rail options for Dumbarton Bridge


City of San Jose – Diridon Station TOD Planning to expand and accommodate multi-modal travel


City of Union City – BART Intermodal Station Regional rail hr-blue


MTC – SoCo Rail Strategies Assesses passenger and rail needs in southern Alameda County, including potential East Bay hubs


BART – LINK21 Transbay Rail Crossing Early planning for large Megaregional Program


SVJ Regional Rail Authority – Valley Link New rail expansion connection between BART Station in Dublin to ACE Station in North Lathrop


ACE – Valley Rail Service Plan ACE rail expansion south to Merced and two additional round trips to Sacramento for San Joaquin

TOD –Transit-Oriented Development

ACE –Altamont Corridor Express

SamTrans –San Mateo Transit District

VTA –Valley Transportation Authority

MTC –Metropolitan Transportation Commission

SJV –San Joaquin Valley

Mobility within Northern California’s Megaregion

Today there are 12.2 million people living in the 21-County Northern California Megaregion. By 2050, there will likely be more than 15 million residents in the megaregion. Capitol Corridor’s intercity rail service links directly to several regional rail and transit services throughout the megaregion. The challenge to provide efficient travel options and improve rail mobility to keep freight goods moving through rail can be addressed by creating an integrated transportation network—South Bay Connect is part of the solution.

Map of major area routes

Rail Infrastructure

Today, there is a busy and complicated rail system used by freight and passenger rail services. that leads to at-grade crossing traffic back-ups as well as operational inefficiencies for both passenger and freight rail services.

  • UP uses the Nile Subdivision, the Coast Subdivision and Centerville Lines to move goods from the Port of Oakland to San Jose and the Central Valley.
  • Passenger trains like Amtrak Coast Starlight runs two trains down the Coast Subdivision, and the Altamont Corridor Express runs eight trains daily between the Central Valley and San Jose.
  • Finally, Capitol Corridor runs 14 trains daily down the Niles, across the Centerville line and then down the Coast Subdivision to San Jose.

South Bay Connect proposed route relocation from the Niles Subdivision to the Coast Subdivision will reduce rail congestion and facilitate the separation of freight and passenger rail services on busy corridors.

Potential Rail Infrastructure Upgrades

CCJPA is working closely with UP to identify railroad improvements on the Coast, Niles and Oakland Subdivision lines to meet the Federal Railroad Administrations Class 5 standards and establish a new rail connection in the Shinn area respectively. Additional rail improvements may include:

  • Rail track and rail tie replacements
  • Installation of new signal technology
  • Right-of-way safety and security modifications such as fencing
  • New sidings or passing tracks to reduce train idling
  • At-grade crossing safety improvements
  • New Niles and Oakland Subdivision connection near Industrial Parkway
  • Grade separation at Industrial Parkway
  • New freight rail connection near Niles Junction

Project Milestones

Key planning and environmental milestones have been identified and represent opportunities for public engagement to share information and seek valuable input to address any environmenal impacts that may affect the community.

Project timeline graphic

Project Funding & Sources

The estimated total project cost is approximately $264 million. Funding is already committed for the project’s environmental and design phases, as well as more than half of the estimated construction costs.

Identified funding sources

Click on the acronyms below to learn more about the various funding sources listed on the table above.

Measure BB

In 2014, Alameda County voter approved Measure BB, authorizing an extension and augmentation of the existing transportation sales tax (Measure B). Measure BB is projected to generate approximately $8 billion in revenues from April 2015 to March 2045 for transportation improvements for Alameda County.


Passed in July 2018 by 55 percent of Bay Area voters, RM3 was designed to fund 35 projects with the goal of relieving traffic and enhancing public transit in bridge corridors. All of the projects fell into one of four categories: region-wide improvements, improvements in the central bridge corridor, improvements in the northern bridge corridor and improvements in the southern bridge corridor.


Senate Bill 1 (SB 1) created the State Rail Assistance (SRA) Program by directing a portion of new revenue specifically to intercity rail and commuter rail. SRA is managed by the California State Transportation Agency (CalSTA).


The biennial five-year STIP was adopted by the California Transportation Commission (CTC) for future allocations of certain state transportation funds for state highway improvements, intercity rail, and regional highway and transit improvements.


TIRCP provides grants from the Greenhouse Gas Reduction Fund to fund transformative capital improvements that will modernize California’s intercity, commuter, and urban rail systems, and bus and ferry transit systems, to significantly reduce emissions of greenhouse gases, vehicle miles traveled and congestion.

Established Project Funding Sources:



RM 3

Measure BB

Other Prospective Funding Sources: