Was the twin-bore tunnel environmentally cleared?

In early April 2018, the VTA Board of Directors approved VTA’s BART Silicon Valley Phase II Extension (BSVII) Project, certified the Final Subsequent Environmental Impact Report (SEIR) as CEQA lead agency, and selected the Single-Bore Option in the approved Recommended Project Description. In late April 2018, the BART Board of Directors, as a Responsible Agency under CEQA, accepted the SEIR and, pursuant to the Comprehensive Agreement, approved the BSVII Project as approved by the VTA Board, which included the selection of the Single-Bore Option. In June 2018, FTA, as the NEPA lead agency, issued the Record of Decision for the BSVII Project (approving the Final Supplemental Environmental Impact Statement) and selected the Single-Bore Option. Although the Draft 2016 and Final 2018 SEIS/SEIR included an evaluation of the Twin-Bore Option, it was not selected as the preferred option. Only the Single-Bore Option was selected as part of the approved project description. Also, although the VTA Board has approved the twin-bore design configuration in the past (in 2004 and 2007), only the single-bore design configuration has NEPA/CEQA clearance as of the 2018 approvals. Further information and documentation can be found in our Planning and Environmental page.