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Fort Duquesne Bridge

Fort Duquesne Bridge

Primary Photographer(s): Nathan Holth

Bridge Documented: July 16, 2011

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Key Facts

Facility Carried / Feature Intersected
I-279 Over Allegheny River
Location
Pittsburgh: Allegheny County, Pennsylvania: United States
Structure Type
Metal Tied Solid Ribbed Through Arch, Fixed and Approach Spans: Metal Continuous Box Beam, Fixed
Construction Date and Builder / Engineer
1959 By Builder/Contractor: American Bridge Company of New York, New York and Engineer/Design: Richardson, Gordon, and Associates

Technical Facts

Rehabilitation Date
2010
Main Span Length
432 Feet (132 Meters)
Structure Length
921 Feet (281 Meters)
Roadway Width
53.5 Feet (16.31 Meters)
Spans
1 Main Span(s) and 4 Approach Span(s)
NBI Number
2027900640452

Historic Significance Rating (HSR)
View Information About HSR Ratings

Bridge Documentation

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

View Historic American Engineering Record (HAER) Documentation For This Bridge

HAER Overview Page, PDF - HAER Original Plan Sheets, PDF - HAER Data Pages, PDF

This bridge is the smaller of two tied arch bridges that frame Pittsburgh's famous Point State Park. The tied arch features a trussed tie that supports a double-deck system on the bridge. The trussed tie follows the Warren truss configuration. The historic bridge proper consists of the main span and four approach spans. However the entire bridge system includes many more ramps and approach spans. These approach and ramp systems are actually quite a bit newer than the main bridge due to delays in construction projects. As such, the 1959 bridge was not actually opened to traffic until some of these were completed in 1969.

This bridge replaced one of the most beautiful and ornate bridges in Pittsburgh, the Manchester Bridge. The HAER documentation links above record this bridge.


This bridge is tagged with the following special condition(s): Double-Deck

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Photo Galleries and Videos: Fort Duquesne Bridge

 
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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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Maps and Links: Fort Duquesne Bridge

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