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62nd Street Bridge

Senator Robert D. Fleming Bridge

62nd Street Bridge

Primary Photographer(s): Nathan Holth

Bridge Documented: July 2, 2014

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Key Facts

Pittsburgh: Allegheny County, Pennsylvania: United States
Structure Type
Metal Cantilever 16 Panel Rivet-Connected Warren Deck Truss, Fixed and Approach Spans: Metal Cantilever Deck Girder,
Construction Date and Builder / Engineer
1960 By Builder/Contractor: American Bridge Company of New York, New York and Engineer/Design: Parsons, Brinckerhoff, Hall, and Macdonald of New York, New York

Technical Facts

Rehabilitation Date
Main Span Length
400 Feet (121.9 Meters)
Structure Length
2,106 Feet (641.9 Meters)
Roadway Width
50 Feet (15.24 Meters)
4 Main Span(s) and 12 Approach Span(s)
NBI Number

Historic Significance Rating (HSR)
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Bridge Documentation

Additional Information: This bridge was an AISC Medium Span Prize Bridge.

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

While this is a late example of a riveted cantilever truss bridge, and may tend to be overshadowed by Pittsburgh's immense collection of historic bridges, this bridge nevertheless exhibits some interesting and unusual details. The main spans of this bridge are a cantilever deck truss system. The system consists of 225 foot anchor arm spans, and a 400 foot central span consisting of 100 foot cantilever arms and a 200 foot suspended span. The overall form of this truss is unusual for a deck truss. The top chord is not horizontal and instead overall follows a 3.5% profile grade, giving the top a slight arched appearance. The center truss span has a polygonal (arch-like) bottom chord, which is not uncommon for a cantilever (or continuous) deck truss, but what is unusual is that the "arch" shape is very shallow.

The approach span system of this bridge at the northern end is also of interest. It consists of deck plate girder spans configured as two parallel superstructures sharing a common deck/roadway and pier system. These girder spans are also configured as cantilever spans that include suspended spans.


Photo Galleries and Videos: 62nd Street Bridge

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