The Chicago River Swing Bridge is a movable bridge located in downtown Chicago, Illinois. It spans the Chicago River and is designed to rotate horizontally to allow boats to pass through. This type of bridge is essential for maintaining both road and waterway traffic in the busy urban area. Constructed in the early 20th century, the bridge is an important part of the city's infrastructure. It connects various neighborhoods and facilitates transportation for vehicles and pedestrians. The bridge's unique design showcases the engineering advancements of its time while serving a practical purpose in the bustling city.