Commercial Street Bridge on the Penn-Lincoln Parkway

1948-08-16

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Commercial Street Bridge on the Penn-Lincoln Parkway

Title
Commercial Street Bridge on the Penn-Lincoln Parkway
Identifier
MSP285.B011.F03.I04
Source Identifier
MSP285.B011.F03.I04
Description
Initial phase during the construction of the Commercial Street Bridge along the Penn-Lincoln Parkway. The bridge has 3 arches with a length of 170 feet each and 12 approach spans at a length of 28 feet each. The total length of the bridge, including the longest elevated ramp, is 846 feet. The height of the deck has a clearance of 85 feet at the arch and a width of 68 feet. The bridge, a pair of twins each featuring two-ribbed arches, includes nearly 2.5 million pounds of steel reinforcing bars and 15,000 cubic yards of concrete. Material excavated during the construction of the Squirrel Hill Tunnel fills a part of Nine Mile Run Valley to a depth of 100 feet on a 1,000 foot long approach to the Commercial Street Bridge. Construction began in April 1948 and was completed in April 1951 at a cost of $1.78 million by Dinardo, Inc. of Pittsburgh.
Genre
photographs
Subject
Commercial Street Bridge (Pittsburgh, Pa.)
Interstate 376.
Nine Mile Run (Pittsburgh, Pa.)
Bridges--Pennsylvania--Pittsburgh.
Parkway East.
Penn-Lincoln Parkway.
Bridge construction--Pennsylvania--Pittsburgh.
Source
Allegheny Conference on Community Development Photographs, 1892-1981, MSP 285, Library and Archives Division, Senator John Heinz History Center
Contributor
Detre Library & Archives, Heinz History Center
Collection
Allegheny Conference on Community Development Photographs
Rights Information
Copyright Not Evaluated. The copyright and related rights status of this Item has not been evaluated. Please refer to the organization that has made the Item available for more information. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use.
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