Cedar Hill Yard is a railroad classification yard in New Haven, North Haven, and Hamden, Connecticut, in the United States. It was built by the New York, New Haven and Hartford Railroad in the early 1890s in and around New Haven's Cedar Hill neighborhood, which gave the yard its name. Following an expansion begun in 1917, and further improvements in the 1920s, Cedar Hill Yard became one of the largest rail yards in the United States, routinely handling more than 4,000 railroad cars each day on 880 acres (360 ha) of land. After the rise of trucks and highways, and rerouting of rail traffic to newly built Selkirk Yard in the state of New York, Cedar Hill Yard significantly declined in importance and much of it was abandoned, as ownership was transferred to Penn Central in 1969, and subsequently Conrail in 1976. Since 1999, the yard has been owned and operated by CSX Transportation, and also hosts operations by Amtrak, the Connecticut Southern Railroad, and the Providence and Worcester Railroad. (Full article...)