The Santa Clara Valley Transportation Authority (VTA) proposes a heavy rail system to extend the Bay Area Rapid Transit (BART) Silicon Valley service from the Berryessa Station through downtown San Jose to the City of Santa Clara. The project includes five miles of subway tunnels out of total 6.1-mile corridor, 48 heavy rail vehicles, two mid-tunnel ventilation and egress facilities, and a storage yard and maintenance facility. The project is being designed and constructed by VTA, will be owned by VTA, and operated and maintained by BART.