Two new University of Oregon residence halls were planned in the East Campus neighborhood, but the second is now on hold due to lower enrollment projections, according to UO spokesperson Angela Seydel. The first residence hall, an estimated $160 million seven-story, 870-bed building south of East 17th Avenue between Moss Street and Columbia Street, is going as planned. It has an expected completion date by fall 2027, according to Seydel. The nex…