The project will construct a one-mile stretch of second main track from Solana Beach into Del Mar, replace the nearly 100-year-old wooden trestle rail bridge over the San Dieguito River with a modern, concrete double-track bridge, and add a new special events rail platform on the west side of the fairgrounds. SANDAG is also working to incorporate a safe and legal public undercrossing under the south end of the rail bridge. The project is part of the Interstate 5 North Coast Corridor Program, a comprehensive package of highway, rail and transit, and coastal access improvements, which spans 27 miles from Oceanside to La Jolla.

PanGIS, Inc. worked on various phases of this project as a subcontractor to ASM Affiliates, Inc., who was a subcontractor to BRG Consulting. PanGIS, Inc. produced GIS databases of survey areas, testing units, artifacts, and archaeological features from high-precision GPS data. The GIS data were used to create detailed maps of cultural resources.