California Transit Association

Member Profiles

Altamont Corridor Express

<p>ACE Train passing Alameda Creek Salt Flats</p> (Year: 2014)

Operating Revenue


Operating Expenditure


Capital Revenue


Capital Expenditure


Fleet Inventory

32 Cars, 6 Lcocomotives


Year Founded


Context for Year Founded

Founded in 1995. Service started in 1998.

Governing or Corporate Structure

Board consists of 8 Elected Officials (6 chosen by San Joaquin Council of Governments and 2 by Alameda County Transit Authority

Significant Historical Milestones

In 1998, the Altamont Corridor Express began operating 2 daily trains from the Central Valley to the Silicon Valley. Today ACE operates four weekday trains from the Central Valley to the Bay Area with stops in San Joaquin, Alameda, and Santa Clara counties and transports over 1 million passengers annually.

With special weekend trains taking passengers to Levi Stadium for the 49er football games and to anticipated special events such as the Great America Amusement Park and the San Jose Jazz Festival, ACE is helping community members enjoy their weekend as much as they're enjoying their stress-free ride to work through the week.

Notable Leaders

Stacey Mortensen is the Executive Director of the San Joaquin Regional Rail Commission and a visionary leader in the field of transportation. Stacey's ambitious goal is to modernize the existing ACE train and dramatically expand service to cities in the Central Valley and San Francisco Bay Area. Stacey is a true consensus-builder and works with community leaders and elected officials to create partnerships for success in transforming the Valley's commuter rail infrastructure.

Notable Achievements

Awards: CTF Person of the Year 2015, Women in Transportation, Women of the Year 2014

Public Transit and Commuter Rail Agencies

Number of Employees


Annual Ridership


Number of Rail Lines Served


Major Planned Investments

Positive Train Control

Year: 2014

ACE Train passing Alameda Creek Salt Flats

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Year: 2015

Stacey Mortensen

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Year: 2014

ACE Train on the Altamont Pass

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