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Big Sioux River Bridge

Hamlin County, South Dakota

Photos 

Overview

Photo taken by Jason Smith

Enlarge

BH Photo #147306

Map 

Facts 

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
Location
Hamlin County, South Dakota
Status
Replaced by a new bridge
History
Built 1934; replaced 2016
Design
Bedstead Riveted Pratt pony truss bridge
Dimensions
Span length: 75.8 ft.
Total length: 75.8 ft.
Deck width: 24.3 ft.
Approximate latitude, longitude
+44.76074, -97.05016   (decimal degrees)
44°45'39" N, 97°03'01" W   (degrees°minutes'seconds")
Approximate UTM coordinates
14/654316/4958221 (zone/easting/northing)
Quadrangle map:
Watertown SE
Average daily traffic (as of 2016)
66
Inventory numbers
SD 29-218-030 (South Dakota structure number)
BH 32222 (Bridgehunter.com ID)
Inspection report (as of June 2018)
Overall condition: Good
Superstructure condition rating: Very Good (8 out of 9)
Substructure condition rating: Very Good (8 out of 9)
Deck condition rating: Very Good (8 out of 9)
Sufficiency rating: 100 (out of 100)
View more at BridgeReports.com

Categories 

Bedstead Pratt pony truss (369)
Bedstead truss (553)
Big Sioux River (75)
Built 1934 (844)
Built during 1930s (12,327)
Hamlin County, South Dakota (7)
Lost (31,807)
Lost 2016 (314)
Lost during 2010s (3,680)
Owned by county (22,000)
 Pony truss (17,553)
Pratt pony truss (4,132)
Pratt truss (10,846)
Replaced by new bridge (21,695)
Riveted (2,776)
South Dakota (727)
Span length 75-100 feet (6,804)
Total length 75-100 feet (7,074)
Truss (38,318)

Update Log 

  • October 11, 2012: Updated by Jason Smith: Added categories "Big Sioux River", "Riveted"
  • October 8, 2009: Updated by Jason Smith: Bridge is a bedstead riveted Pratt pony truss

Sources 

  • Jason Smith - flensburg [dot] bridgehunter [dot] av [at] googlemail [dot] com

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