New programs and schools were created in the 1970s and the university gained control over the hospital on North Campus. New facilities for the medical and law schools were constructed on North Campus and new Main Campus buildings were constructed on the site of the now demolished Zimmerman Field and Stadium, including Ortega Hall, Woodward Hall, the Humanities building, and the Art building. The campus also underwent a new landscaping plan, which included the construction of the duck pond west of Zimmerman Library and the conversion of many streets to pedestrian malls in order to make a more pedestrian-friendly campus.