Arsenal Bridge

Photos 

Iowa shore looking south

Photo taken by Nathan Morton in Sept. 07

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Map 

Street View 

Facts 

Overview

Baltimore through truss bridge over Mississippi River on 2 lanes of traffic and a single rail line in Davenport

Location

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

Status

Open to traffic

History

Built 1896, Rehabilitated 1983 & 1997

Builders

- Phoenix Bridge Co. of Phoenixville, Pennsylvania
- Ralph Modjeski of Bochnia, Poland (Engineer)
- United States Army (Ordnance Department)

Design

Baltimore through truss swing bridge with pratt truss and steel beam approaches

Dimensions

Length of largest span: 370.1 ft.
Total length: 1,854.0 ft.
Deck width: 25.3 ft.

Recognition

Posted to the National Register of Historic Places

Also called

Government Bridge
Rock Island Bridge

Approximate latitude, longitude

+41.51917, -90.56694   (decimal degrees)
41°31'09" N, 90°34'01" W   (degrees°minutes'seconds")

Approximate UTM coordinates

15/703017/4599250 (zone/easting/northing)

USGS topographic map

Davenport East

Inventory numbers

IL 000-0008 (Illinois bridge number)
IA 699340 (Iowa bridge number)
BH 38082 (Bridgehunter.com ID)

Inspection (as of 09/2002)

Deck condition rating: Good (7 out of 9)
Superstructure condition rating: Good (7 out of 9)
Substructure condition rating: Satisfactory (6 out of 9)
Appraisal: Functionally obsolete
Sufficiency rating: 69.1 (out of 100)

Categories 

Update Log 

• March 22, 2013: Updated by Luke Harden: Added category "HAER documented"
• January 10, 2013: New photos from John Marvig
• December 28, 2012: Updated by John Marvig: corrected total length-this bridge isn't 11,000 feet long
• October 4, 2012: Updated by John Marvig: Added category "Center Pivot Swing Span"
• August 18, 2012: Updated by Luke Harden: Added builder
• May 24, 2012: Updated by Luke Harden: Added category "Navigable waterway"
• May 11, 2012: Updated by Luke Harden: Added builder, US Army was the primary builder according to the plaque.
• April 19, 2012: Updated by Luke Harden: Changed name to the name most often used by the locals
• October 8, 2011: Photo imported by Luke Harden
• July 25, 2011: New photos from Luke Harden
• June 14, 2011: New photo from Bob Morgan
• February 24, 2011: Updated by Nathan Holth: Merged NBI Data.
• April 16, 2010: New Street View added by James Baughn
• November 14, 2008: New photo from Nathan Morton
• November 13, 2008: Added by Nathan Morton

Related Bridges 

• Second Bridge (Predecessor) - Second RI Bridge Across the river

Sources 

• Nathan Morton - morton890 [at] yahoo [dot] com
• Nathan Holth
• HAER IL-20-P - Rock Island Arsenal, Rock Island Bridge, Fort Armstrong Avenue, Rock Island, Rock Island, IL
• Lock and Dam 15 webcam #2 - view of lock chambers and Government Bridge swing span
• Bob Morgan - morgans212 [at] nc [dot] rr [dot] com
• Luke Harden - lukemh9 [at] gmail [dot] com
• Wikipedia
• Flickr - Plaque
• John Marvig - johnmarvig [at] chaska [dot] net

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