High Quality Content by WIKIPEDIA articles! The Portland Aerial Tram is an aerial tramway in Portland, Oregon, carrying commuters between the city`s South Waterfront district and the main Oregon Health Science University (OHSU) campus, located in the Marquam Hill neighborhood. It is the second commuter aerial tramway in the United States (after New York City`s Roosevelt Island Tramway). The tram travels a horizontal distance of 3,300 feet (1,000 m) and a vertical distance of 500 feet (150 m) in a ride that lasts three minutes.