Photos 

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Elevation From West

Photo by Joe Elliott, Summer 1995, for HAER

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Elevation From West

Photo by Joe Elliott, Summer 1995, for HAER

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Elevation, Two Middle Spans, From West

Photo by Joe Elliott, Summer 1995, for HAER

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3/4 View From Southwest

Photo by Joe Elliott, Summer 1995, for HAER

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3/4 View From Deck, From Southeast

Photo by Joe Elliott, Summer 1995, for HAER

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Construction Details Of Arch, From Deck

Photo by Joe Elliott, Summer 1995, for HAER

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Center Toll Booth, From Southeast

Photo by Joe Elliott, Summer 1995, for HAER

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Underside, From North

Photo by Joe Elliott, Summer 1995, for HAER

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Underside, 3/4 View At South End

Photo by Joe Elliott, Summer 1995, for HAER

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Highway Approach, Pylons, From South

Photo by Joe Elliott, Summer 1995, for HAER

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Builders Plate At South End

Photo by Joe Elliott, Summer 1995, for HAER

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Centennial Bridge

This bridge crosses the Mississippi River from Rock Island, Illinois to Davenport, Iowa.

Photo taken by Quinn Phelan in March 2009

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Looking North

From Rock Island, Illinois.

Photo taken by Quinn Phelan in March 2009

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Visitor Center

The bridge has its own Visitor Center. But it was closed on a cold March 3, 2009 day.

Photo taken by Quinn Phelan in March 2009

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As Seen From Downtown Rock Island

Caught this from a tall building in Rock Island looking north.

Photo taken by Quinn Phelan in March 2009

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Map 

Vicinity Map

Vicinity map

Map links:

Bridge History & Facts 

From Wikipedia

Go to this link for some interesting facts...

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

Facts 

Overview
Steel through arch bridge over Mississippi River, Railroad and US 61 on US 67 in Davenport
Status
Open to traffic
History
Built 1940; rehabilitated 1996
Builder
- American Bridge Co. of New York
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.
Deck width: 45.9 ft.
Approximate latitude, longitude
+41.52500, -90.59167   (decimal degrees)
41°31'30" N, 90°35'30" W   (degrees°minutes'seconds")
Approximate UTM coordinates
15/700936/4599840 (zone/easting/northing)
USGS topographic map
Davenport East
Inventory number
BH 37423 (Bridgehunter.com ID)
Inspection (as of 10/2006)
Deck condition rating: Very Good (8 out of 9)
Superstructure condition rating: Satisfactory (6 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 2006)
27,200

Update Log 

  • 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