Historic Bridges
of the United States
West Middlesex Bridge
Mercer County
,
Pennsylvania
Overview
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Terraserver USA
Facts
Overview
Deck truss bridge over Shenango River on PA 318 in West Middlesex
Location
Mercer County
,
Pennsylvania
Status
Open to traffic
History
Built 1941; rehabilitated 1982
Design
Pratt deck truss
Dimensions
Length of largest span: 202.1 ft.
Total length: 717.9 ft.
Deck width: 26.2 ft.
Approximate latitude, longitude
+41.17167, -80.46000
(decimal degrees)
41°10'18" N, 80°27'36" W
(degrees°minutes'seconds")
Approximate UTM coordinates
17/545296/4557954
(zone/easting/northing)
USGS topographic map
Sharon East
Inventory numbers
PA 43 0318 0060 1201
(Pennsylvania bridge number)
BH 31297
(Bridgehunter.com ID)
Inspection
(as of 10/2007)
Deck condition rating:
Satisfactory
(6 out of 9)
Superstructure condition rating:
Poor
(4 out of 9)
Substructure condition rating:
Fair
(5 out of 9)
Appraisal:
Structurally deficient
Sufficiency rating: 29.0
(out of 100)
Average daily traffic
(as of 2008)
5,521
Categories
Built 1941
(216)
Built during 1940s
(1,917)
Deck truss
(553)
Functionally obsolete
(5,793)
Mercer County, Pennsylvania
(19)
Open
(22,291)
Owned by state
(6,768)
Pennsylvania
(1,714)
Pratt deck truss
(37)
Pratt truss
(1,666)
Span length 175-250 feet
(1,037)
Structurally deficient
(12,075)
Total length 500-1000 feet
(1,052)
Truss
(16,266)
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