Duck Creek Aqueduct, Covered aqueduct in Metamora Township, US

Duck Creek Aqueduct is a single-span Burr through truss aqueduct about 90 feet long and 25 feet wide, carrying the Whitewater Canal over Duck Creek. Its oak trough, 2–3 feet deep, sits under a 20th-century metal standing seam roof, giving it the look of a covered bridge.

The original aqueduct was built between 1839 and 1843 as part of the Whitewater Canal's initial construction. The present structure dates to 1846, after the first aqueduct was washed out in a flood. It was strengthened in 1868, repaired in 1901, and restored to its current appearance between 1946 and 1949. A historically sensitive replacement of the oak trough followed in 2005.

The structure shows how 19th-century people connected water management with transportation needs. The wooden design served both purposes in a single location, reflecting practical problem-solving of that era.

Take time for a slow walk around and across the structure to see the construction details clearly. The wooden arches and supporting system are best observed from different angles as you move through and around the building.

A nationwide survey for the National Park Service in the 2010s found records of only ten covered bridge aqueducts ever built in the United States; this 1846 structure is the sole survivor. Its trough of oak beams and panels holds canal water 2–3 feet deep.