The Foothill Gold Line Construction Authority (Construction Authority) on September 12 announced a milestone for the 12.3-mile, six-station rail extension from Glendora to Montclair in Southern California, as four shortlisted design-build teams vying for the Alignment Design-Build Contract submitted proposals.

Four design-build teams have been short-listed to build the new Glendora to Montclair extension of the Gold Line light rail project in Southern California.