Martin's Mill Covered Bridge (Antrim Township, Franklin County, Pennsylvania)

Martin's Mill Covered Bridge is a historic wooden covered bridge located in Antrim Township, Franklin County, Pennsylvania. It is one of several covered bridges remaining in Franklin County and is notable for its architectural style and historical significance to the region's transportation history.

The bridge spans the West Branch of the Little Conecocheague Creek. It is a Burr arch truss construction, a design patented by Theodore Burr in 1817. The Burr arch truss is characterized by the use of an arch in combination with a multiple kingpost truss to provide strength and stability.

The bridge was constructed in 1849 by David Detrich. Its purpose was to provide a sheltered crossing of the creek for local residents and farmers, facilitating travel and commerce. The covered design protected the wooden structural members from the elements, extending the bridge's lifespan.

The Martin's Mill Covered Bridge is a single-span bridge, meaning it crosses the creek in one continuous section. The bridge has undergone renovations and repairs throughout its history to maintain its structural integrity.

The bridge is named for Martin's Mill, which was presumably located nearby at the time of its construction. Mills were vital to rural economies, and the bridge served as an important link for transporting goods and materials to and from the mill.

The Martin's Mill Covered Bridge is listed on the National Register of Historic Places, recognizing its importance to the history of Franklin County and its architectural merit as an example of a Burr arch truss covered bridge. It remains a landmark and a testament to the craftsmanship of 19th-century bridge builders. While still standing, the bridge is typically not open to vehicular traffic in the 21st century, serving primarily as a historical landmark.