Advanced Work Builders is a joint venture of Myers, RailWorks, Sully-Miller and Colas to deliver the Southeast Gateway Light Rail Transit Line ("Southeast Gateway Line").

Once completed, the corridor will serve the communities of Artesia, Cerritos, Bellflower, Paramount, Downey, South Gate, Cudahy, Bell, Huntington Park, Vernon, the Florence-Graham community and downtown Los Angeles.

The Southeast Gateway Line will increase mobility and connectivity for historically underserved communities, improving the local and regional transportation network to accommodate future employment and population growth.