The Hayden RR Bridge, is a truss bridge located in Springfield, Oregon, spanning over the McKenzie River. The bridge initially served as a traditional railroad bridge, starting as part of the first transcontinental railroad in Utah, before being shipped to its current location to serve as part of the Marcola line, whose primary use was the distribution of lumber. It later closed down due to the closure of the area's lumbermills, until it was converted into a pedestrian bridge in 2019. It is one of the few remaining wrought-iron, Phoenixville bridges still standing, and the oldest intact bridge in the state of Oregon.