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Supple Ford Bridge

Photos 

IA-32-1

Photo by John N. Vogel, photographer, September 1990, for HAER

View photos at Library of Congress

BH Photo #123455

Map 

Facts 

Overview
Lost Bowstring through truss bridge over South Fork Maquoketa River on Temple Hill Road in Clay Township
Location
Clay Township, Jones County, Iowa
Status
Replaced by new bridge
History
Built 1875; Washed away 1947 but hauled back and reset; Replaced 1991
Builder
- King Bridge Co. of Cleveland, Ohio
Design
Bowstring Truss

"The Jones County bowstring arch-truss bridge is a virtually intact example of a once-common technology in bridge design in Iowa, the bowstring bridge designed by the King Bridge Company of Cleveland, Ohio. In 1980, this bridge was described as one of only approximately 28 remaining bowstring bridges in Iowa and one of four remaining bowstring bridges in Jones County. It was erected in 1875 and is the second oldest surviving iron truss bridge in Jones County and the oldest remaining bridge built by the King Iron Bridge Company in the county today."

Historians: Norene Roberts, PhD., Historical Research, Inc., Minneapolis, Minnesota
John N. Vogel, PhD.,Consulting Historian, Milwaukee, Wisconsin

September 26, 1990
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Dimensions
Span length: 100.4 ft.
Total length: 100.4 ft.
Deck width: 15.4 ft.
Approximate latitude, longitude
+42.18611, -90.98333   (decimal degrees)
42°11'10" N, 90°58'60" W   (degrees°minutes'seconds")
Approximate UTM coordinates
15/666531/4672408 (zone/easting/northing)
Quadrangle map:
Canton
Inventory number
BH 37393 (Bridgehunter.com ID)

Update Log 

  • September 24, 2014: Updated by Tony Dillon: Changed from pony to through truss
  • September 9, 2008: Added by J.R. Manning

Sources 

  • J.R. Manning - thekitchenguy [at] sbcglobal [dot] net
  • HAER IA-32 - Supple Ford Bridge
  • Tony Dillon - spansaver [at] hotmail [dot] com