Ames Creek Bridge Pony truss bridge over Ames Creek on a county road, 1.5 mi. north and 1 mi. west of Obert Open to traffic Built 1935
Baker Creek Bridge Pony truss bridge over Baker Creek on a county road, 2 mi. south and 3 mi. east of Laurel Open to traffic Built 1935
Baker Creek Bridge Pony truss bridge over Baker Creek on a county road, 2 mi. south and 1 mi. east of Laurel Open to traffic Built 1935
Beaver Creek Bridge Pony truss bridge over Beaver Creek on a county road, 5 mi. north and 5.5 mi. west of Fordyce Open to traffic Built 1935
Bow Creek Bridge Pony truss bridge over Bow Creek on a county road, 5.5 mi. south of Wynot Open to traffic Built 1935; rehabilitated 1974
Bow Creek Bridge Pony truss bridge over Bow Creek on a county road, 7.5 mi. south and 1.5 mi. west of Fordyce Open to traffic Built 1935; rehabilitated 1972
Bow Creek Bridge Truss bridge over Bow Creek on a county road, 1.2 mi. south of St James Open to traffic Built 1914
Bow Creek Bridge Pony truss bridge over Bow Creek on a county road, 2.5 mi. northeast of Hartington Open to traffic Built 1935; rehabilitated 1973
East Bow Creek Bridge Pony truss bridge over East Bow Creek on COLL 7803 Open to traffic Built 1925
East Bow Creek Bridge Pony truss bridge over East Bow Creek on a county road, 9 mi. east and 1.5 mi. south of Hartington Open to traffic Built 1935
East Bow Creek Bridge Pony truss bridge over East Bow Creek on a county road, 6 mi. south and 2.7 mi. west of Obert Open to traffic Built 1935
East Bow Creek Bridge Pony truss bridge over East Bow Creek on a county road, 8.5 mi. east and 1 mi. north of Coleridge Open to traffic Built 1905
Logan Creek Bridge Pony truss bridge over Logan Creek on a county road, 1.5 mi. northeast of Belden Open to traffic Built 1935
Logan Creek Bridge Pony truss bridge over Logan Creek on a county road, 1 mi. west and 1 mi. north of Laurel Open to traffic Built 1935
Logan Creek Bridge Pony truss bridge over Logan Creek on a county road, .5 mi. northwest of Laurel Open to traffic Built 1960
Logan Creek Bridge Through truss bridge over Logan Creek on a county road, 2.5 mi. south and 4 mi. east of Laurel Open to traffic Built 1905
Meridian Bridge Vertical-lift through truss bridge over the Missouri River on US 81 at Yankton Open to traffic Built 1924; rehabilitated 1953
Pearl Creek Bridge Pony truss bridge over Pearl Creek on a county road, 2 mi. south of Hartington Open to traffic Built 1935; rehabilitated 1972
Pearl Creek Bridge Pony truss bridge over Pearl Creek on a county road, 5 mi. east and 4.3 mi. north of Magnet Open to traffic Built 1913
Pearl Creek Bridge Pony truss bridge over Pearl Creek on COLL 7797, 5.5 mi. south and 1 mi. west of Hartington Open to traffic Built 1935
Unnamed Stream Bridge Pony truss bridge over an unnamed stream on a county road, 3 mi. east and 1.5 mi. south of Hartington Open to traffic Built 1910
Unnamed Stream Bridge Pony truss bridge over an unnamed stream on a county road, 4 mi. east of Coleridge Open to traffic Built 1935
Unnamed Stream Bridge Pony truss bridge over an unnamed stream on COLL 7657 Open to traffic Built 1935
Unnamed Stream Bridge Pony truss bridge over an unnamed stream on a county road, 1 mi. south and 3 mi. east of Hartington Open to traffic Built 1935
Unnamed Stream Bridge Pony truss bridge over an unnamed stream on a county road, 1 mi. south and 6 mi. east of Hartington Open to traffic Built 1910
Unnamed Stream Bridge Pony truss bridge over an unnamed stream on a county road, 7 mi. south and 1 mi. west of Obert Open to traffic Built 1970
West Bow Creek Bridge Pony truss bridge over West Bow Creek on a county road, 1 mi. east of Bow Valley Open to traffic Built 1935
West Bow Creek Bridge Truss bridge over West Bow Creek on a county road, 1.5 mi. west of Wynot Open to traffic Built 1960