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