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Thresher Bee Park Bridge



Relocated pony truss bridge formerly over an unnamed creek on 477th Avenue, 1 mi. west and 0.6 mi. south of Milbank
Grant County, South Dakota
Replaced but relocated to a park for reuse
Built ca. 1920; relocated after 2000
Pony truss
Length of largest span: 41.0 ft.
Total length: 42.0 ft.
Deck width: 17.7 ft.
Also called
477th Avenue Bridge (Former location)
Approximate latitude, longitude
+45.21500, -96.66167   (decimal degrees)
45°12'54" N, 96°39'42" W   (degrees°minutes'seconds")
Approximate UTM coordinates
14/683605/5009494 (zone/easting/northing)
Quadrangle map:
Milbank West
Average daily traffic (as of 2016)
Inventory numbers
SD 26-280-076 (South Dakota structure number)
BH 32214 (Bridgehunter.com ID)
Inspection report (as of July 2018)
Overall condition: Good
Superstructure condition rating: Good (7 out of 9)
Substructure condition rating: Good (7 out of 9)
Deck condition rating: Good (7 out of 9)
Sufficiency rating: 99 (out of 100)
View more at BridgeReports.com


Built during 1920s (9,956)
Grant County, South Dakota (12)
Open (39,975)
Owned by county (20,840)
Pony truss (16,236)
South Dakota (665)
Span length 25-50 feet (15,707)
Total length 25-50 feet (11,214)
Truss (32,936)

Update Log 

  • November 1, 2016: Updated by Tony Dillon: Updated status.



County Road Bridge
Posted November 1, 2016, by Tony Dillon (spansaver [at] hotmail [dot] com)

Is that in Milbank? I looked around the vicinity and on Google and couldn't find a Thresher Bee Park in that area. I updated the status but wanted to mark the proper location. Thanks!

County Road Bridge
Posted November 1, 2016, by dgulck (dgulck [at] yahoo [dot] com)

This bridge is not lost but was relocated to the threshing bee park grounds and was reset to cover a small ravine on the grounds. I live right next to where the bridge was located.