BSVI was a 10-mile expansion of the BART system from Warm Springs in Fremont through Milpitas to the Berryessa district of north San José.

Delivered via a single design-build contract awarded in 2011 to a Skanska–Shimmick–Herzog (SSH) joint venture, this $2.3 billion project added two new stations (Milpitas and Berryessa/North San José) and extended BART service into Santa Clara County for the first time.

The extension broke ground in April 2012 and opened for passenger service in June 2020, providing a projected 23,000 riders per weekday with a new transit option. Managed by VTA, the project required extensive coordination with BART, businesses, the public, residents, cities, elected officials, and many more to successfully deliver the line in a dense urban corridor.