Exploratory Geotechnical Work Planned for LOSSAN Rail Realignment Project

As part of the San Diego LOSSAN Rail Realignment project, SANDAG plans to do geotechnical testing in several locations within the cities of Del Mar and San Diego to learn more about the underground soil structure. This work, combined with previous geotechnical studies, will help us evaluate potential options for relocating the rail tracks.

SANDAG has submitted an application to the California Coastal Commission for this work. Testing will begin later this summer. SANDAG will inform the community before the start of any testing, and updates will be available on SANDAG.org/railrealignmentnews.

What to Expect during This Work

  • A geotechnical drilling rig and other related equipment on site
  • Testing taking place over several months with each individual site potentially being completed within a couple of days to a couple of weeks, depending on conditions (schedule is subject to change)
  • Work taking place within public streets or publicly owned land
  • Traffic controls to ensure access is maintained to and from individual properties and for emergency vehicles
  • Short periods of intermittent noise

Stay Updated

For additional information about the project, including frequently asked questions, visit our project web page. Email lossancorridor@sandag.org or call our toll-free hotline at 858.549.RAIL with any questions or concerns.

About the Project

To protect the Los Angeles-San Diego-San Luis Obispo (LOSSAN) rail line from landslides, rapid erosion, and seismic activity, the San Diego Association of Governments (SANDAG) is exploring long-term solutions to ensure the rail corridor remains safe, reliable, and resilient. As part of this work, we are looking at how best to reduce travel times, enhance safety, and increase how many passengers and how much cargo can be transported along the entire San Diego section of the railway. This includes evaluating adding a second train track between the future Special Events Platform that will be constructed as part of the San Dieguito Double Track Project in the City of Del Mar and the north end of Sorrento Valley in the City of San Diego.