Wooden Trusses of a Covered Bridge.

Hannaway Covered Bridge

Covered bridges use wooden trusses not unlike those in metal truss bridges. The triangular wood trusswork is clearly visible in the interior of this wooden covered bridge. This type of bridge gave way to iron truss bridges in the late 19th century. The bridge cover or roof is there to protect the wood from rapid deterioration due to rot. Iron doesn't rot or burn!

The Hannaway Covered Bridge is located in Fairfield County, Ohio. It is closed to traffic being bypassed by a modern bridge.