The M-72–Au Sable River Bridge, also known as the Grayling Bridge or State Street Bridge, is a bridge located on M-72 over the Au Sable River in Grayling, Michigan. It was listed on the National Register of Historic Places in 1999.
The M-72–Au Sable River Bridge, also known as the Grayling Bridge or State Street Bridge, is a bridge located on M-72 over the Au Sable River in Grayling, Michigan. It was listed on the National Register of Historic Places in 1999. (en)
The M-72–Au Sable River Bridge, also known as the Grayling Bridge or State Street Bridge, is a bridge located on M-72 over the Au Sable River in Grayling, Michigan. It was listed on the National Register of Historic Places in 1999. (en)