Bailey Road Bridge Pony truss bridge over Duck Creek on Bailey Road in Newton Falls Open to traffic Built 1940
County Road 114-F Bridge Pony truss bridge over Eagle Creek on County Road 114-F Open to traffic Built 1950
County Road 174B Bridge Pony truss bridge over Little Yankee Run on County Road 174B Open to traffic Built 1951; rehabilitated 1951
County Road 187-B Bridge Pony truss bridge over Big Yankee Run on County Road 187-B Open to traffic Built 1951; rehabilitated 1995
County Road 295E Bridge Pony truss bridge over Mosquito Creek on County Road 295E Open to traffic Built 1951; rehabilitated 1951
County Road 329 Bridge Pony truss bridge on County Road 329 in Warren Open to traffic Built 1930 by the American Bridge Company
County Road 68C Bridge Pony truss bridge over Mahoning River on County Road 68C in Niles Open to traffic Built 1948
County Road 79-C Bridge Pony truss bridge over Duck Creek on County Road 79-C Open to traffic Built 1954; rehabilitated 1982
County Road 90A Bridge Pony truss bridge over Kale Creek on County Road 90A Open to traffic Built 1954; rehabilitated 1995
Deacon Creek Bridge Pony truss bridge over Deacon Creek on CR 236-G Unknown status Built 1905; rehabilitated 1953
Kale Creek CR 105A Bridge Pony truss bridge over Kale Creek on County Road 105A Closed to all traffic Built 1951; rehabilitated 1951
Little Yankee Run Bridge Lost pony truss bridge over Little Yankee Run on CR 167C No longer exists Built 1952; rehabilitated 1999; replaced 1999
Newton Falls Covered Bridge Covered bridge over East Branch Mahoning River on Arlington Street in Newton Falls Open to traffic Built ca. 1831
Olive Street Bridge Arch bridge on Olive Street in Niles Open to traffic Built 1920 by the Walsh Construction Co. of Davenport, Iowa; rehabilitated 1976
South Main Street Bridge Open-spandrel arch bridge on South Main Street (OH 46) Open to traffic Built 1932 by the E.R. Latham Co. of Columbus, Ohio; rehabilitated 1980
South Main Street Bridge Closed-spandrel arch bridge on S. Main Street in Warren City Open to traffic Built 1918 by the Watson Engineering Co.; rehabilitated 1977
Township Road 123-A Bridge Pony truss bridge over Eagle Creek on Township Road 123-A Open to traffic Built 1950; rehabilitated 1999
Township Road 136-A Bridge Pony truss bridge over Duck Creek on Township Road 136-A Open to traffic Built 1900; rehabilitated 1952
Warner Road Bridge Pony truss bridge over South Branch Yankee Run on Warner Road (CR 43b) Open to traffic Built 1954; rehabilitated 1996