The Old Eastern Avenue Bridge (also known erroneously as the King Street Bridge) consists of two bridges spanning the Don River in Toronto, Canada. The north bridge or Gas Line Bridge is a concrete arch bridge built for Consumers Gas Company and is used by Enbridge Gas to carry a major gas main. The southern Howe Truss bridge, similar to Queen Street Viaduct and Bathurst Street Bridge, previously carried traffic on Eastern Avenue but is currently unused.