Aqueduct Bridge

The Aqueduct Bridge is a two-level structure in Washington, D.C. that carries boats through water channels on its lower section while supporting vehicle traffic above. Vessels can cross the span without needing locks or elevation mechanisms, thanks to the constant water levels maintained throughout the structure.

Completed in 1889, the bridge represented a major achievement in American engineering during the late 19th century. The structure transformed how commerce moved through the capital region by enabling larger vessels to navigate inland waterways.

The bridge stands as a testament to late 19th-century American engineering capabilities, reflecting the period's focus on expanding maritime transportation networks.

Visitors can walk or bike across the structure, with pedestrian paths available along its length. Daytime visits work best for viewing the construction details and understanding how water and traffic move through the two levels.

This transportation marvel combines the functions of a traditional bridge and a water-carrying channel, enabling simultaneous land and water traffic flow.