The South Waterfront is a high-rise district under construction on former brownfield industrial land in the South Portland neighborhood south of downtown Portland, Oregon, U.S. It is one of the largest urban redevelopment projects in the United States. It is connected to downtown Portland by the Portland Streetcar and MAX Orange Line, and to the Oregon Health& Science University main campus atop Marquam Hill by the Portland Aerial Tram, as well as roads to Interstate 5 and Oregon Route 43.