Western Area Power Administration (WAPA), a division of the Department of Energy, has awarded Maslonka an $87.8 million contract to engineer, procure and construct the 84-mile stretch of 500-kV transmission line in Central California, known as Path 15. This project is scheduled to be completed prior to the end of 2004.

Path 15 is currently a system of three 500-kV lines between Northern and Southern California, except for the segment between the Los Banos and Gates substations, where only two 500-kV lines were built. This project will add a third line and modify the substations at both ends of this segment to accommodate the new line. This new line will add 1,500 mW of transmission capacity between Northern and Southern California.