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Centennial Bridge

Scott County, Iowa, and Rock Island County, Illinois
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Photos 

Elevation From West

Photo by Joe Elliott, Summer 1995, for HAER

View photos at Library of Congress

Map 

Bridge History & Facts 

From Wikipedia

Go to this link for some interesting facts...

http://en.wikipedia.org/wiki/Rock_Island_Centennial_Bridge

View Uglybridges.com report

Facts 

Overview
Steel through arch bridge over the Mississippi River on US 67 between Davenport and Rock Island
Location
Rock Island, Scott County, Iowa, and Rock Island County, Illinois
Status
Open to traffic
History
Completed July 12, 1940; tolls removed May 2, 2003; rehabilitated 1996
Builders
- American Bridge Co. of New York
- Ash, Howard, Needles, & Tammen of Kansas City, Missouri (Designer)
- McCarthy Improvement Co. of Davenport, Iowa
- Priester Construction Co. of Davenport, Iowa
Design
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.
Dimensions
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")
Approximate UTM coordinates
15/701804/4598771 (zone/easting/northing)
USGS topographic map
Davenport East
Inventory numbers
IA 47020 (Iowa bridge number)
BH 37423 (Bridgehunter.com ID)
Inspection (as of 07/2010)
Deck condition rating: Good (7 out of 9)
Superstructure condition rating: Fair (5 out of 9)
Substructure condition rating: Fair (5 out of 9)
Appraisal: Functionally obsolete
Sufficiency rating: 43.8 (out of 100)
Average daily traffic (as of 2011)
31,800

Categories 

American Bridge Co. (449)
Arch (9,420)
Ash, Howard, Needles, & Tammen (8)
Built 1940 (689)
Built during 1940s (2,798)
Davenport, Iowa (29)
Former toll (5)
Functionally obsolete (7,040)
Illinois (2,500)
Iowa (3,511)
McCarthy Improvement Co. (1)
Mississippi River (155)
Navigable waterway (1,449)
 Open (28,320)
Owned by state (9,810)
Priester Construction Co. (1)
Rock Island County, Illinois (40)
Rock Island, Illinois (19)
Scott County, Iowa (53)
Skewed (4,080)
Span length 500-1000 feet (313)
State line crossing (514)
Steel through arch (175)
Total length over 2500 feet (587)
US 67 (67)

Update Log 

  • 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

Sources 

  • J.R. Manning - thekitchenguy [at] sbcglobal [dot] net
  • HAER IA-73 - Centennial Bridge
  • Quinn Phelan - qphelan [at] earthlink [dot] net
  • Wikipedia
  • Luke Harden - lukemh9 [at] gmail [dot] com
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Comments 

Centennial Bridge
Posted May 27, 2012, by David Sebben (nebbes61 [at] yahoo [dot] com)

An extremely foggy morning as the Centennial Bridge disappears into it.

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