Santa Clara Valley Transportation Authority (VTA) is extending the Bay Area Rapid Transit (BART) regional heavy rail system to Milpitas, San Jose and Santa Clara. The 16-mile extension will travel along the existing Union Pacific Railroad alignment south of the future Warm Springs Station in Fremont to Milpitas and North San Jose, and then will tunnel underneath downtown San Jose, rising to street level in Santa Clara. When completed, this fully grade-separated project is planned to include: six stations — one in Milpitas, four in San Jose and one in Santa Clara; a 5-mile tunnel in downtown San Jose; and a new maintenance and storage facility in Santa Clara.