Woodbridge is a large suburban housing development, begun in 1975 by The Irvine Company, in the central region of Irvine, California. It covers roughly four square miles, has two large man-made lakes at its center, and is considered by many to be the Irvine Company's crowning achievement. It contains four elementary schools (there used to be a fifth, an alternative school, Alderwood, which got moved to Quail Hill), two middle schools, and Woodbridge High School.