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Castlewood Bridge

Hamlin County, South Dakota

Photo 

Elevation.

Source: Historic Bridge Context for South Dakota

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BH Photo #268415

Map 

Facts 

Overview
Thacher through truss bridge over Big Sioux River
Location
Hamlin County, South Dakota
Status
Replaced by a new bridge
History
Built 1894, replaced after June 1990
Builders
- King Bridge Co. of Cleveland, Ohio
- Milo A. Adams of Minneapolis, Minnesota (Agent)
Design
Thacher through truss
Dimensions
Length of largest span: 80.0 ft.
Approximate latitude, longitude
+44.71648, -97.04496   (decimal degrees)
44°42'59" N, 97°02'42" W   (degrees°minutes'seconds")
Approximate UTM coordinates
14/654845/4953314 (zone/easting/northing)
Quadrangle map:
Castlewood
Land survey
T. 114 N., R. 53 W., Sec. 20
Inventory number
BH 58430 (Bridgehunter.com ID)

Categories 

19th Century (6,880)
Built 1894 (217)
Built during 1890s (2,742)
Hamlin County, South Dakota (6)
King Bridge Co. (326)
Lost (22,248)
Milo A. Adams (6)
 Replaced by new bridge (14,839)
South Dakota (626)
Span length 75-100 feet (6,176)
Thacher truss (13)
Through truss (14,033)
Truss (31,221)

Update Log 

  • October 15, 2013: Added by Nathan Holth

Sources 

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Comments 

Castlewood Bridge
Posted October 15, 2013, by Nathan Holth (form3 [at] historicbridges [dot] org)

At first I thought a pin-connected Warren truss in this county was the Thacher truss referred to in HAER documention. However, I finally found mention of this actual Thacher truss in Hamlin County. However, I am not 100% sure where it was located. Its probably demolished. Because of its name, I assume it was near Castlewood, and it was reported to cross Big Sioux River. The map points to my "Best Guess" for the bridge... I can see remains of caissons in the imagry.