The West Side Rail Yards is the site of Manhattan’s largest-scale planned development. At 26.2 acres, the rail yards site is twice the size of Ground Zero, and larger than Atlantic Yards in Brooklyn. The site stretches from 10th Avenue to 12th Avenue, and between 30th and 33rd Streets. It is owned by the MTA, a state agency, but is slated for private development, determined by an MTA-run bidding process. The site is a currently a working rail yard, serving as a holding terminus for Long Island Rail Road trains.