Lone Hill Avenue to White Avenue Double-Track Project

Metro is adding a second mainline track between Lone Hill Avenue in San Dimas and White Avenue in La Verne to improve Metrolink service. The project upgrades crossings for safety and supports future Quiet Zones.

Aerial view of Lonehill Avenue to White Avenue Double-Track area.

Project Type

Better Transit

Current Phase

Design & Engineering

Estimated Project Completion

TBD

Metro is doubling track on 3.9 miles of the Metrolink San Bernardino Line to enhance safety, reduce delays, and prepare for future service growth. The project also upgrades 12 crossings to meet Quiet Zone standards and improves station platforms, sidewalks, and drainage.

Read the Fact Sheet

Business and Community Support

Planning

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Quiet Zones

Learn how crossing upgrades help.

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Local Access

Stay informed about construction.

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Get Involved

Help shape this project for good. We want to hear from you:

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Contact the Project Team

Email or call with questions.

Email Us 213-922-2444

Get Project Updates

Email Us 213-922-2444

Provide Input

Share your feedback anytime.

Email Us 213-922-2444

Frequently Asked Questions

Why build a second track?

A second track reduces delays, improves safety, and allows trains to pass each other, supporting future service growth and reliability.

Will more trains run?

Not immediately. The project enables future service increases as demand and funding allow.

What is a Quiet Zone?

A federally designated area where upgraded crossings reduce the need for train horns, improving quality of life for nearby communities.

How does this improve safety?

Double-tracking separates directions of travel and upgraded crossings improve safety for pedestrians, cyclists, and drivers.

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Will the track move closer to homes?

In some areas, yes — within Metro’s right-of-way, with noise mitigation and Quiet Zone readiness to minimize impacts.