Hamlin County

Big Sioux River Bridge   [Map]
Pony truss bridge over Big Sioux River on 180th Street, 3 mi. north and 1.3 mi. west of Castlewood in Castlewood Township
Open to traffic
Built 1930; rehabilitated 1970
Big Sioux River Bridge   [Map]
Pony truss bridge over Big Sioux River on 181th Street, 2 mi. north and 1.2 mi. west of Castlewood in Castlewood Township
Open to traffic
Built 1934
Castlewood Bridge   [Map]
Thacher through truss bridge over Big Sioux River
Built 1894
Hidewood Creek Bridge   [Map]
Pony truss bridge over Hidewood Creek on 464th Avenue, 2.5 mi. north and 1 mi. west of Estelline
Replaced by a new bridge
Built 1900
Stray Horse Creek Bridge   [Map]
Through truss bridge over Stray Horse Creek on 179th Street, 4.9 mi. east and 4 mi. north of Castlewood in Hamlin Township
Closed to vehicular traffic
Built ca. 1890s, Closed in 1996