The Steel Bridge is a cantilevered through truss bridge located in Portland, Oregon. Completed in 1910, it spans the Willamette River and is notable for its unique design, which allows both road and rail traffic to cross simultaneously. The bridge is made primarily of steel, providing strength and durability. Measuring 1,480 feet in length, the Steel Bridge is one of the oldest and most significant bridges in the United States. It features a vertical lift section that can be raised to allow larger vessels to pass underneath. The bridge is an essential part of the local transportation network.