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Big Sioux River Bridge



Queenpost pony truss bridge over a small branch of the Big Sioux River on Big Sioux Road, 2.7 mi. south and 0.6 mi. west of Baltic
Minnehaha County, South Dakota
Removed but not replaced
Built 1935, closed to traffic in 1998, removed along with Big Sioux River bridge in 2012
Queenpost pony truss
Length of largest span: 47.9 ft.
Total length: 50.9 ft.
Deck width: 14.1 ft.
Approximate latitude, longitude
+43.72037, -96.74588   (decimal degrees)
43°43'13" N, 96°44'45" W   (degrees°minutes'seconds")
Approximate UTM coordinates
14/681570/4843285 (zone/easting/northing)
Quadrangle map:
Inventory numbers
SD 50-194-086 (South Dakota structure number)
BH 32275 (Bridgehunter.com ID)

Update Log 

  • June 3, 2013: Updated by Jason Smith: Confirmed bridge removal in spring 2012
  • June 1, 2013: Updated by John Marvig: Bridge is lost, confirmed by Google Earth
  • February 7, 2012: Updated by Jason Smith: This bridge is closed to all traffic. Located next to the Big Sioux River Crossing which is also closed to traffic


  • Jason Smith - flensburg [dot] bridgehunter [dot] av [at] googlemail [dot] com
  • John Marvig - marvigj27 [at] gmail [dot] com


Big Sioux River Bridge
Posted February 21, 2008, by Jason Smith (JDSmith77 [at] gmx [dot] net)

According to the information by the county engineer and from my visit, that bridge spanned a tributary to the Big Sioux, just east of Big Sioux Road Bridge, a through truss bridge over the Big Sioux River itself. Both bridges are closed to traffic due to the road being washed out on many occasions. When I was there, I had to stop at this bridge and turn around because the road was impassable.