Durfee Avenue Grade Separation Project.
Montebello Boulevard Grade Separation Project.
Nogales Avenue Grade Separation Project.

Interactive Map of ACE Projects

Project Status of the ACE Projects.

Updates and Notices

Recent Construction Notices:

Rail Traffic to Return to Permanent Mainline Tracks
Effective: June 4, 2021 to June 6, 2021 and June 18, 2021 to June 20, 2021

Notices of Sale of Property:

Request for Proposals Updates:

IFB No. 21-03 - Diamond Bar Golf Course Project

Official Bid Results/Notice of Intent to Award: Available Here

IFB No. 21-03 - Diamond Bar Golf Course Project

Preliminary Bid Opening Results: Available Here


RFP NO. 21-09 - Feasibility Study for Establishing the Regional VMT Mitigation Fee Program

The San Gabriel Valley Council of Governments (SGVCOG) is seeking proposals to prepare a feasibility study for establishing a Regional Vehicle-Miles-Travelled (VMT) Mitigation Fee Program for its member agencies within the San Gabriel Valley.

The overarching goals for the San Gabriel Valley Regional VMT Mitigation Fee program, when fully established, are to address local development projects’ impact on the regional transportation system; to assess transportation impact fees with an emphasis on transparency, accountability, consistency among participating agencies; to distribute the collected impact fees timely and appropriately; and to achieve vehicle- miles-traveled reduction through a wider range of transportation programs and projects in the San Gabriel Valley region with a sustaining funding mechanism.

Request for Proposals (RFP) No. 21-09 is available on the SGVCOG website at www.sgvcog.org.


RFP No. 21-02 – Construction Management Services for the SR57 / SR60 Interchange Improvements Project

Notice of Intent to Award: Available Here

Upcoming Capital Projects Committee Meeting:


Date and Time: Monday, June 28, 2021 at 12:00pm 
Location: Teleconference Meeting

Agenda: Not Yet Available
YouTube: Not Yet Available
Zoom: Not Yet Available


Alameda Corridor-East Project

The San Gabriel Valley Council of Governments (SGVCOG), a joint powers authority comprised of 30 cities and three Los Angeles County supervisorial districts, created the Alameda Corridor-East (ACE) Construction Authority in 1998 to provide direction and oversight of the ACE Project to mitigate the impacts of significant increases in freight rail traffic on over 70 miles of mainline railroad in the San Gabriel Valley. In 2017, the SGVCOG was restructured and the SGVCOG Capital Projects and Construction Committee was established as a successor to the ACE Construction Authority with full responsibility for implementing the ACE Project. The ACE Project consists of a comprehensive program of safety improvements and mobility upgrades at 39 railroad crossings and 19 roadway-railroad crossing grade separation projects at an estimated cost of $1.7 billion. The ACE Trade Corridor is among the state's and nation's busiest rail corridors, carrying 16 percent of all oceangoing containers throughout the entire United States. The grade separations will improve crossing safety, eliminate vehicle delay throughout the local network and locomotive horn noise, and reduce emissions.

Introductory Video


ACE Partners

The U.S. Department of Transportation
California Transportation Commission
California Department of Transportation
Union Pacific Railroad