Yarnell Avenue Bridge
Facts
- Overview
- Lost pratt through truss bridge over North Skunk River on Yarnell Avenue
- Location
- Mahaska County, Iowa
- Status
- Removed between 2012 and 2013. May have collapsed beforehand. Support/abutments remain
- Builder
- - King Bridge Co. of Cleveland, Ohio
- Design
- Pin-connected Pratt through truss
- Also called
- Great White Way Auto Trail Bridge
Iowa Primary Highway 2 Bridge - Approximate latitude, longitude
- +41.33888, -92.42704 (decimal degrees)
41°20'20" N, 92°25'37" W (degrees°minutes'seconds") - Approximate UTM coordinates
- 15/547939/4576535 (zone/easting/northing)
- Quadrangle map:
- Rose Hill
- Inventory number
- BH 55279 (Bridgehunter.com ID)
Update Log
- January 30, 2015: Updated by Kevin Skow: Visited bridge today but it no loger exists. Posted photos of the site and updated the bridge's status.
- January 22, 2013: Updated by Luke Harden: Added category "Skunk River"
- January 22, 2013: Added by Nathan Holth
Sources
- Nathan Holth
- Kevin Skow - weatherbum [at] hotmail [dot] com
Comments
Was looking into traveling out to check out this bridge, but based on satellite imagery on Google Earth and the IA State GIS page, it may have collapsed. The bridge is visible on 2011 imagery (and obviously existed when the photos on this page were taken in 2012), but in the 2013 and 2014 imagery I can't see it. On Google Earth, I think I can just barely make out a piece of the north truss in the shadow of the trees canted at a 30 degree angle upstream of the original location. Seems like an odd position, so I'm not sure if what I'm seeing is correct. Can anyone else confirm this?
Cool. Going to check that one out. Maybe, you never know....
Good bridges in my neck of the woods. Great find.
James,
Thanks! That's just what I was unable to remember! So, now, I combed through some other King bridges and sure enough this floorbeam appears to be a design they used on a number of bridges. So we can safely list this bridge as a King too.
http://www.bridgehunter.com/ia/madison/bevington/
This bridge (a King bowstring) comes to mind:
Makes me think of the Tom's Run Bridge in the park in Dayton, Ohio. At least they appear to be similar in concept.
Tony,
I agree the bridge appears very old. The critical detail doesn't show up real well because BridgeHunter shrinks images to 1600 pixels. I am attaching a crop of the photo showing just the floorbeam, with its distinctive paired channels with post-tensioning. I feel I have seen this detail somewhere else, I am just trying to think where.
Looks to be very light with rather small endposts. Might well date into the 1880's.
This page's URL is http://bridgehunter.com/ia/mahaska/yarnell-avenue/
I did end up visiting the bridge today. Trucked a quarter of a mile through a muddy field only to find that the bridge was indeed gone...