Seventh St. over Black R., Port Huron, Michigan. County/parish: St. Clair.
Added to the National Register of Historic Places February 04, 2000. NRIS 00000045.
1 contributing structure.The Seventh Street–Black River Bridge is a bridge carrying Seventh Street over the Black River in Port Huron, Michigan. The bridge was listed on the National Register of Historic Places in 2000. It is the only single-leaf bascule bridge in the state of Michigan.
(read more...)National Park Service documentation: https://catalog.archives.gov/id/25338420