Antelope Creek Bridge Lost pony truss bridge over Antelope Creek, 3.3 mi. south and 2.0 mi. east of Hillsboro No longer exists Built 1925; rehabilitated 1960; replaced 2002
Branch Cottonwood River Bridge Concrete arch bridge over a branch of Cottonwood River, 2.0 mi. north and 1.8 mi. west of Florence Open to traffic Built ca. 1940
Clear Creek Bridge Lost pony truss bridge over Clear Creek, 2.2 mi. north and 0.6 mi. east of Marion No longer exists Built ca. 1910; replaced 2002
Clear Creek Bridge Concrete arch bridge over Clear Creek, 0.5 mi. north and 0.5 mi. east of Antelope Open to traffic Built 1914
Clear Creek Bridge Stone arch bridge over Clear Creek, 1.9 mi. north and 0.5 mi. east of Lincolnville Open to traffic Built 1887
Cottonwood River Bridge Pony truss bridge over Cottonwood River, 0.5 mi. north and 2.5 mi. west of Marion Open to traffic Built ca. 1920
Cottonwood River Bridge Through truss bridge over Cottonwood River, 2.1 mi. east and 0.6 mi. south of Florence Open to traffic Built 1915
Doyle Creek Bridge Lost through truss bridge over Doyle Creek No longer exists Replaced 1999
Lyon Creek Bridge Pony truss bridge over Lyon Creek, 0.5 mi. north and 1.7 mi. east of Ramona Open to traffic Built 1915
Middle Creek Bridge Concrete arch bridge over Middle Creek, 5.0 mi. south and 7.0 mi. east of Lincolnville Open to traffic Built ca. 1920
Mud Creek Bridge Concrete pony arch bridge over Mud Creek, 0.6 mi. north of Marion Open to traffic
North Cottonwood River Bridge Pony truss bridge over North Cottonwood River, 3.5 mi. west and 1.3 mi. north of Durham Closed to all traffic Built 1922
South Cottonwood River Bridge Pony truss bridge over South Cottonwood River, 1.5 mi. west and 2.0 mi. south of Hillsboro Open to traffic Built ca. 1930