The Foothill Gold Line light rail extension from Glendora to Montclair broke ground in December 2017. The first few years of the project is being spent relocating utilities along the 12.3-mile rail corridor and hiring the design-build team to build the $1.5 billion, six-station project.

The Foothill Gold Line Construction Authority (the agency responsible for overseeing the project) is currently underway with a multi-step, competitive process to hire the design-build team. Major construction is expected to begin in 2020 and take six years.

Significant changes expected in the City of San Dimas will include a new light rail station and parking facility (located east of San Dimas Avenue between Bonita Avenue and Arrow Highway), and a new light rail bridge over the intersection of Bonita Ave/Cataract Ave, requiring the permanent closure of Monte Vista Avenue at the railroad corridor (the bridge is required by the California Public Utilities Commission). All other crossings in the city will be at street level, and permanent safety improvements will be installed at each to protect the rail corridor when a train is approaching.

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