Rating:
5 votes

Field Bridge

Photos 

Field Bridge

I was able to gain access to the bridge from the owner. She was happy to let me take some photos. View from the south end looking north. Taken June 12, 2013.

Photo taken by Dave King

Enlarge

BH Photo #256097

Map 

Facts 

Overview
Pinned half-hip Pratt pony truss bridge over Small Stream on Field
Location
Cedar County, Iowa
Status
Open to private traffic
History
Built 1895
Builder
- Clinton Bridge & Iron Works of Clinton, Iowa
Design
Half-hip Pratt pony truss
Approximate latitude, longitude
+41.88965, -91.32982   (decimal degrees)
41°53'23" N, 91°19'47" W   (degrees°minutes'seconds")
Approximate UTM coordinates
15/638560/4638872 (zone/easting/northing)
Quadrangle map:
Mechanicsville
Inventory number
BH 56593 (Bridgehunter.com ID)

Categories 

19th Century (6,182)
Built 1895 (238)
Built during 1890s (2,459)
Cedar County, Iowa (63)
Clinton Bridge & Iron Works (57)
Half-hip Pratt pony truss (385)
Iowa (5,792)
Open (36,571)
Owned privately (1,286)
Pin-connected (3,219)
Pony truss (15,050)
Pratt pony truss (3,180)
Pratt truss (8,018)
Truss (29,445)
Wooden deck (5,863)

Update Log 

  • November 20, 2016: Updated by Dave King: Added category "Pin-connected"
  • June 12, 2013: Updated by Matt Lohry: Updated bridge type
  • June 12, 2013: Added by Dave King

Sources 

  • Dave King - DKinghawkfan [at] hotmail [dot] com
  • Matt Lohry

Comments 

Field Bridge
Posted June 21, 2013, by Tony Dillon (spansaver [at] hotmail [dot] com)

I found one that used to exist in Indiana but was removed about 1990. Was built in 1905 by the Paris Bridge Company of Paris, IL

Field Bridge
Posted June 15, 2013, by AR

Awesome!

Field Bridge
Posted June 13, 2013, by James Baughn (webmaster [at] bridgehunter [dot] com)
Field Bridge
Posted June 13, 2013, by Nathan Holth

Tony: The oldest known highway swing bridge in the country, Michigan's New Richmond Bridge, includes pin-connected Warren pony truss spans: http://www.historicbridges.org/bridges/browser/?bridgebrowse...

There also is the Howellville Bridge: http://www.historicbridges.org/bridges/browser/?bridgebrowse...

Field Bridge
Posted June 13, 2013, by Robert Elder (robertelder1 [at] gmail [dot] com)

Hmmm...is this a pinned Warren bedstead or a pinned Howe bedstead? Either way, it is lost.

http://bridgehunter.com/ks/jackson/430975903840/

http://khri.kansasgis.org/index.cfm?tab=details&in=085-0000-...

Field Bridge
Posted June 13, 2013, by Tony Dillon (spansaver [at] hotmail [dot] com)

With Matt on this one... A Pratt all the way.

Just out of curiosity... Does anyone know of any pinned Warren ponies out there anywhere? I would suspect that there were some built and just wonder if any remain. Being how rare that pinned Warren through's are, a pony would be very special.

Field Bridge
Posted June 12, 2013, by Matt Lohry

Very nice indeed! This is another case of "Pratt or Warren?", but the diagonals are both eyebar members, suggesting that they are in tension, so I classified it as a half-hip Pratt.

Field Bridge
Posted June 12, 2013, by Nathan Holth (form3 [at] historicbridges [dot] org)

The abutment looks like it might be newer than 1895, which could suggest its a relocated bridge. However some of our farmland in Michigan has truss bridges on it that appear to have been placed for farmer use when the county put big drains in place, so sometimes I think farm bridges can be original.

Field Bridge
Posted June 12, 2013, by Dave King (DKinghawkfan [at] hotmail [dot] com)

Thanks Nathan. I really liked this bridge. Luckily a farmer drove by me on his tractor and knew who owned the property. I don't know if it was an old road that ran that way or if its just there as a field bridge.

Field Bridge
Posted June 12, 2013, by Nathan Holth (webmaster [at] historicbridges [dot] org)

Nice find!