Status: Open to traffic
Location: 44.775236,-97.052950
Carries 180th Street over Big Sioux River
Design: truss/pony/warren/alt-verticals
Design Details: Warren pony truss with alternating verticals
Total Length: 62.0 Feet
Span Length: 60.0 Feet
Overview: Pony truss bridge over Big Sioux River on 180th Street, 3 mi. north and 1.3 mi. west of Castlewood in Castlewood Township
History: Built 1930; rehabilitated 1970
Built: 1930
Location: Hamlin County
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Status: Replaced by a new bridge
Location: 44.760743,-97.050156
Carries 181th Street over Big Sioux River
Design: truss/bedstead/pratt
Design Details: Bedstead Riveted Pratt pony truss bridge
Total Length: 75.8 Feet
Span Length: 75.8 Feet
Overview: Lost pony truss bridge over Big Sioux River on 181th Street, 2 mi. north and 1.2 mi. west of Castlewood in Castlewood Township
History: Built 1934; replaced 2016
Built: 1934
Location: Hamlin County
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147306
Overview
Photo taken by Jason Smith
147307
Inside the bridge
Photo taken by Jason Smith
Status: Replaced by a new bridge
Location: 44.609167,-96.925278
Carries 464th Avenue over Hidewood Creek
Design: truss/pony
Design Details: Pony truss
Total Length: 67.6 Feet
Span Length: 44.9 Feet
Overview: Pony truss bridge over Hidewood Creek on 464th Avenue, 2.5 mi. north and 1 mi. west of Estelline
History: Built 1900
Built: 1900
Location: Hamlin County
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Status: Closed to vehicular traffic
Location: 44.789917,-96.926778
Carries 179th Street over Stray Horse Creek
Design: truss/through/warren
Design Details: Pin-connected Warren through truss
Total Length: 82.7 Feet
Span Length: 80.0 Feet
Overview: Through truss bridge over Stray Horse Creek on 179th Street, 4.9 mi. east and 4 mi. north of Castlewood in Hamlin Township
History: Built ca. 1890s, Closed in 1996
Built:
Location: Hamlin County
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147303
Portal bracings
The markings resemble that of a bridge built by King Bridge Co.
Photo taken by Jason Smith
147304
Oblique view
The bridge is listed on the NRHP because of its design. It looks like the structure resembles a Thacher-hybrid design, however that bridge is (was) located over the Big Sioux north of Castlewood. It is unknown whether that bridge still exists or if it is abandoned in a manner similar to this bridge- closed off and abandoned making it really difficult to get to it even by foot. -JS
Photo taken by Jason Smith
147305
Bird's eye view from the highway.
Since the road was barricaded to traffic, I could only take it from a distance, zooming in as far as possible. The bridge can also be seen from I-29, as it slices diagonally through the NE corner of the county.
Photo taken by Jason Smith
Status: Replaced by a new bridge
Location: 44.716480,-97.044960
Carries over Big Sioux River
Design: truss/through/thacher
Design Details: Thacher through truss
Total Length: 0.0 Feet
Span Length: 80.0 Feet
Overview: Thacher through truss bridge over Big Sioux River
History: Built 1894, replaced after June 1990
Built: 1894
Location: Hamlin County
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268415
Elevation.
Source: Historic Bridge Context for South Dakota
462305
Castlewood Bridge
Argus-Leader: May 13 1989
Status: Replaced by a new bridge
Location: 44.747764,-96.945522
Carries 463rd Avenue over Tributary of Stray Horse Creek
Design: beam
Design Details: Beam
Total Length: 30.8 Feet
Span Length: 28.5 Feet
Overview: Beam bridge over Tributary of Stray Horse Creek on 463rd Avenue
History: Built 1901, replaced 2017
Built: 1901
Location: Hamlin County
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Status: Open to traffic
Location: 44.729994,-97.450964
Carries 438th Avenue over Bn Railroad
Design: beam/stringer/steel
Design Details: Steel stringer
Total Length: 148.0 Feet
Span Length: 42.0 Feet
Overview: Steel stringer bridge over Bn Railroad on 438th Avenue
History: Built 1936
Built: 1936
Location: Hamlin County
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Special Bridge Conditions Legend: R - Former location of relocated bridge. ! - At risk for demolition or destruction. X - Confirmed demolished or collapsed. S - Dismantled and/or in storage. L - Severe loss of historic integrity due to alteration.
