M-28 / Ontonagon RiverCounty: Ontonagon
City/Township: Interior Twp.
Location: M-28 / Ontonagon River
Year Built: 1929 About this Bridge: This is one of only three steel arch bridges in Michigan, with the main arch span 150 feet in length. The Michigan State Highway Department designed this structure, which was built by the firm of Meads and Anderson.