This bridge is a major river span and was the first tied-arch span across the Mississippi River. The bridge was fabricated, and the superstructure built, by American Bridge Company, New York, one of the largest bridge companies in American history. The bridge's designer, Ned L. Ashton, was one of Iowa's most influential engineers.
Length of largest span: 538.1 ft.
Total length: 3,854.2 ft. (0.7 mi.)
Deck width: 45.9 ft.
Approximate latitude, longitude
+41.51517, -90.58163(decimal degrees) 41°30'55" N, 90°34'54" W (degrees°minutes'seconds")
IA 47020 (Iowa bridge number)
BH 37423 (Bridgehunter.com ID)
Inspection (as of 07/2015)
Deck condition rating: Good(7 out of 9) Superstructure condition rating: Serious(3 out of 9) Substructure condition rating: Fair(5 out of 9) Appraisal: Structurally deficient
Sufficiency rating: 10.8 (out of 100)
Average daily traffic (as of 2014)
April 16, 2017: New photos from David Sebben
February 22, 2015: Photo imported by Dave King
August 4, 2014: Updated by Luke: Presently under construction
July 27, 2013: New Street View added by Dave King
September 8, 2012: Photo imported by Luke Harden
August 18, 2012: Updated by Luke Harden: Added builders.
May 27, 2012: Photo imported by Luke Harden
October 8, 2011: Photo imported by Luke Harden
July 21, 2011: New photos from J.R. Manning
March 25, 2009: New photo from Quinn Phelan
March 3, 2009: Essay added by Quinn Phelan
September 13, 2008: Added by J.R. Manning
J.R. Manning - thekitchenguy [at] sbcglobal [dot] net