2 votes

Doon Bridge



Photo taken March 1998 by Jason Smith

BH Photo #101837



Lost through truss bridge over Rock River Overflow on 250th Street north of Doon
Doon, Lyon County, Iowa
Removed; road raised to the level of the bridge; Overflow drained
Built 1900; replaced ca. 2005
Pin-connected, 7-panel Pratt through truss
Length of largest span: 108.9 ft.
Total length: 183.0 ft.
Deck width: 14.7 ft.
Vertical clearance above deck: 12.0 ft.
Approximate latitude, longitude
+43.28772, -96.23708   (decimal degrees)
43°17'16" N, 96°14'13" W   (degrees°minutes'seconds")
Approximate UTM coordinates
14/724153/4796473 (zone/easting/northing)
Quadrangle map:
Inventory numbers
IA 228850 (Iowa bridge number)
BH 13923 (Bridgehunter.com ID)

Update Log 

  • October 11, 2012: Updated by Luke Harden: Added category "Rock River (Minnesota-Iowa)"
  • October 11, 2012: Updated by Jason Smith: Added category "Rock River"
  • September 29, 2005: Posted photos from Jason Smith


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


Doon Bridge
Posted November 3, 2021, by Luke

Oh I know, I made my own share of duplicates. I'm just glad that we can now get them swiftly taken care of.

I have also been trying to track down original locations of late 90s wayward NBI trusses. It's a PITA, but in a couple of counties (Washington and Johnson, to namedrop two.) it has revealed that trusses we thought lost are extant, albeit unreachable unless you own a truck and fancy driving on Level B roads.

Doon Bridge
Posted November 3, 2021, by Nathan Holth (webmaster [at] historicbridges [dot] org)

OK I deleted the duplicates. The Iowa bridges used to be a mess a long time ago when the GPS Coordinates and Facility Carried fields were really inaccurate, its possible this resulted in some confusion many years ago causing these duplicates.

Doon Bridge
Posted November 3, 2021, by Luke

This and http://bridgehunter.com/ia/lyon/228850/ appear to be the same entry

Doon Bridge
Posted September 17, 2009, by Jason Smith (JDSmith77 [at] gmx [dot] net)

Visited what was left of the bridge during our vacation this past August and found that the road was raised to the level of the bridge that is now gone. The Overflow was also drained, however warning signs about potential flooding are posted.

Doon Bridge
Posted April 30, 2008, by Randy Brush

It was lost and collasped after 2005. It was replace new bridge. it ready to open to traffic. Thank you for show photo of old bridge.