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Improvement Projects

Construction and Maintenance

Metrolink construction and maintenance crews are constantly working throughout the entire Southern California system expanding capacity, upgrading systems and maintaining existing infrastructure to help provide the highest quality of safety and service to our passengers. This work also helps to ensure a safe and smooth flow of freight rail traffic throughout our region.  Here are examples of the type of work we do to maintain our rail system.

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San Juan Capistrano Passing Siding Project 

OCTA and Metrolink are improving the operational efficiency of the Los Angeles – San Diego – San Luis Obispo (LOSSAN) rail corridor. Click here to learn more about this project that will add 1.8 miles of passing siding railroad track between the Laguna Niguel/Mission Viejo Metrolink Station and Trabuco Creek in San Juan Capistrano.


San Bernardino Line – Metrolink Railroad Infrastructure Improvement Work in Rancho Cucamonga

July 9 – August 2, 2019

To keep train service safe and reliable, Metrolink crews will be conducting the following infrastructure improvements on Metrolink’s San Bernardino Line. A full road closure is planned near the intersection of Archibald Avenue and E. 8th Street.

For detailed information, please see this notice.

Contact information

For more information, please contact the Metrolink Community Relations Office below:

Email: [email protected]/ 24/7 Hotline: (213) 452-0400

Public Affairs Manager: Laurene Lopez / Email:[email protected] / Phone: (213) 452-0433