Historic Bridges
of the United States
Seward Bridge
Westmoreland County
,
Pennsylvania
Overview
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Facts
Overview
Pony truss bridge over Conrail on PA 56
Location
Westmoreland County
,
Pennsylvania
Status
Open to traffic
History
Built 1930 by American Bridge Co.; rehabilitated ca. 1985
Builder
-
American Bridge Co.
of New York
Design
Warren pony truss
Dimensions
Length of largest span: 108.9 ft.
Total length: 417.0 ft.
Deck width: 24.0 ft.
Inventory numbers
PA 64 0056 0330 1844
(Pennsylvania bridge number)
BH 31834
(Bridgehunter.com ID)
Inspection
(as of 04/2007)
Deck condition rating:
Satisfactory
(6 out of 9)
Superstructure condition rating:
Fair
(5 out of 9)
Substructure condition rating:
Poor
(4 out of 9)
Appraisal:
Structurally deficient
Sufficiency rating: 30.1
(out of 100)
Average daily traffic
(as of 2008)
6,541
Categories
American Bridge Co.
(102)
Built 1930
(922)
Built during 1930s
(7,082)
Open
(23,111)
Owned by state
(7,026)
PA 56
(4)
Pennsylvania
(2,249)
Pony truss
(11,788)
Skewed
(3,683)
Span length 100-125 feet
(2,630)
Structurally deficient
(14,983)
Total length 250-500 feet
(2,407)
Truss
(19,461)
Warren pony truss
(763)
Warren truss
(1,201)
Westmoreland County, Pennsylvania
(33)
Comments
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