Caltrans and Metro have announced the release of the State Route 710 Tunnel Technical Study DRAFT Geotechnical Summary Report. The report contains data on the geological conditions within the five geographic zones.

Data collection and field exploration work, as part of the Study’s Exploration Program, has been reviewed and evaluated. Descriptions of geology, faulting, seismicity, material properties, hazardous materials, groundwater conditions, and tunneling considerations are provided in depth in the SR-710 Tunnel Study DRAFT Geotechnical Summary Report.  This report is now available in DVD format at public libraries within the Study area and can be downloaded from the Study website at www.710tunnelstudy.info.   

They will be hosting Steering and Technical Advisory Committee meetings in November 2009, and a series of community meetings in early 2010. Please check their website for meeting updates and locations as they become available.

Please can contact their information office at (323) 222-1710 if you have any questions.