In July 2003, Mass. Electric Construction Co., a subsidiary of Kiewit Corporation, completed electrical work on the 13.7 mi. extension of the Metro Gold Line. The rail line serves the communities of Los Angeles, Chinatown, Lincoln Heights, Highland Park, South Pasadena and Pasadena. The extended line includes six new stations in Los Angeles, one in South Pasadena and six in Pasadena. Opening day ridership exceeded 30,000, which is expected to double by 2015.
The scope of work included supply and installation of the 31 mi. auto tensioned overhead contract system, 10 traction power substations and the transit signal and communications systems. The transit signal system included 14 rail siding control switches, 26 grade crossings and several quad gates. The Mass. Electric team was also responsible for installation of wayside elements, including track circuits, cabling and crossing warning systems.