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Cairo Ohio River Bridge

Cairo Ohio River Bridge

Primary Photographer(s): Nathan Holth and Rick McOmber

Bridge Documented: November 2, 2013, July 4, 2021, and August 29, 2021

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and Videos
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Facility Carried / Feature Intersected
US-60, US-62, and US-51 Over Ohio River
Location
Cairo: Alexander County, Illinois and Ballard County, Kentucky: United States
Structure Type
Metal Cantilever 22 Panel Rivet-Connected Warren Through Truss, Fixed and Approach Spans: Metal 10 Panel Rivet-Connected Warren Deck Truss, Fixed
Construction Date and Builder / Engineer
1937 By Builder/Contractor: Mount Vernon Bridge Company of Mount Vernon, Ohio and Engineer/Design: Modjeski and Masters
Rehabilitation Date
1979
Main Span Length
800.0 Feet (243.8 Meters)
Structure Length
5,865.4 Feet (1787.8 Meters)
Roadway Width
20 Feet (6.1 Meters)
Spans
5 Main Span(s) and 27 Approach Span(s)
Inventory Number
2000600888

Historic Significance Rating (HSR)
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Bridge Documentation

This bridge's future is at risk!

Bridge Status: This historic bridge is slated for demolition and replacement!

This bridge's song is:

View Archived National Bridge Inventory Report - Has Additional Details and Evaluation

View Historical Articles About This Bridge

View A Historical Biographical Memoir of Ralph Modjeski

 

At this special point, where two mighty rivers meet, the Ohio and the Mississippi, a truly unique historic bridge presentation is also present, with one historic cantilever truss going over the Mississippi River and another cantilever truss of considerably different appearance crossing the Ohio River. View the other bridge's page. Given the staggering rate in which cantilever truss bridges in the United States (which were never overly populous to begin with) are being demolished, the historic significance and rarity of these two bridges is rapidly increasing. Indeed, even this bridge has entered into the crosshairs of IDOT and the Kentucky Transportation Cabinet, an agency that seems to believe that Kentucky would be best served by the annihilation of all large truss bridges, having engaged in a witch hunt against long-span metal truss bridges in the western part of their states over the past few years. This is a disappointing decision, since many of these bridges could be rehabilitated for continued use. Bridges like this are also good candidates for having a second bridge built next to them to form a one-way couplet of bridges, thereby preserving the historic bridge while increasing traffic capacity. This solution also provides redundancy: if one bridge needs to close for repair, the other one can temporarily serve two-way traffic. This factor should be important for large river crossings which tend to be few in number.

This bridge is visually and structurally notable among cantilever truss bridges because it has multiple "towers" in the truss layout. Traditional cantilever through truss bridges have only two towers, between which are cantilever arms and a suspended span over the navigation channel. This particular bridge however has four towers. The graphic below shows the layout of the bridge. Note that the largest span is between the two westernmost towers.

HistoricBridges.org offers a full set of detail photos of this cantilever truss bridge. As a narrow bridge with a high volume of truck traffic, photo-documentation took place in the early morning hours for safety reasons.

The designer of the bridge was noted firm Modjeski and Masters. Ralph Modeski was one of the most famous bridge designers in the United States and was involved in the design of some of the greatest spans in North America.  Modjeski and Masters was for a time known as Modjeski Masters and Case, and the original plans for this bridge list that name, while the bridge plaques list the name as Modjeski and Masters. Ralph Modjeski died in 1940, and by the late 1930s when this bridge was designed, Frank Masters was reportedly playing the greater role in design of bridges.


This bridge is tagged with the following special condition(s): Unorganized Photos

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Photo Galleries and Videos: Cairo Ohio River Bridge

 

View Photo Gallery

2021 Bridge Photo-Documentation

Original / Full Size Photos
A collection of overview and detail photos. This gallery offers photos in the highest available resolution and file size in a touch-friendly popup viewer.
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View Photo Gallery

2021 Bridge Photo-Documentation

Mobile Optimized Photos
A collection of overview and detail photos. This gallery features data-friendly, fast-loading photos in a touch-friendly popup viewer.
Alternatively, Browse Without Using Viewer

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View Photo Gallery

Additional Earlier Photo-Documentation

Original / Full Size Photos
A collection of overview and detail photos. This gallery offers photos in the highest available resolution and file size in a touch-friendly popup viewer.
Alternatively, Browse Without Using Viewer

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View Photo Gallery

Additional Earlier Photo-Documentation

Mobile Optimized Photos
A collection of overview and detail photos. This gallery features data-friendly, fast-loading photos in a touch-friendly popup viewer.
Alternatively, Browse Without Using Viewer

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View Photo Gallery

Additional Unorganized Photos

Original / Full Size Photos
A supplemental collection of photos that are from additional visit(s) to the bridge and have not been organized or captioned. This gallery offers photos in the highest available resolution and file size in a touch-friendly popup viewer.
Alternatively, Browse Without Using Viewer

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View Photo Gallery

Additional Unorganized Photos

Mobile Optimized Photos
A supplemental collection of photos that are from additional visit(s) to the bridge and have not been organized or captioned. This gallery features data-friendly, fast-loading photos in a touch-friendly popup viewer.
Alternatively, Browse Without Using Viewer

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View Video

CarCam: Westbound Crossing

Full Motion Video
Note: The downloadable high quality version of this video (available on the video page) is well worth the download since it offers excellent 1080 HD detail and is vastly more impressive than the compressed streaming video. Streaming video of the bridge. Also includes a higher quality downloadable video for greater clarity or offline viewing.

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Maps and Links: Cairo Ohio River Bridge

Coordinates (Latitude, Longitude):

Search For Additional Bridge Listings:

Bridgehunter.com: View listed bridges within 0.5 miles (0.8 kilometers) of this bridge.

Bridgehunter.com: View listed bridges within 10 miles (16 kilometers) of this bridge.

HistoricBridges.org Bridge Browser: View listed bridges within 0.5 miles (0.8 kilometers) of this bridge.

HistoricBridges.org Bridge Browser: View listed bridges within 10 miles (16 kilometers) of this bridge.

2021 National Bridge Inventory: View listed bridges within 0.5 miles (0.8 kilometers) of this bridge.

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