Historic Bridges
of the United States
Tilghman Street Viaduct
Lehigh County
,
Pennsylvania
Overview
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Map
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Terraserver USA
Facts
Overview
Open-spandrel arch bridge over Lehigh River on Tilghman Street (PA 1002/Old US 22) in Allentown
Location
Allentown
,
Lehigh County
,
Pennsylvania
Status
Open to traffic
History
Built 1929; rehabilitated 1995
Design
Open-spandrel arch
Dimensions
Length of largest span: 185.0 ft.
Total length: 1,387.2 ft.
Deck width: 36.1 ft.
Recognition
Eligible for the National Register of Historic Places
Approximate latitude, longitude
+40.61667, -75.45667
(decimal degrees)
40°37'00" N, 75°27'24" W
(degrees°minutes'seconds")
Inventory numbers
PA 39 1002 0250 0000
(Pennsylvania bridge number)
BH 31210
(Bridgehunter.com ID)
Inspection
(as of 08/2004)
Deck condition rating:
Fair
(5 out of 9)
Superstructure condition rating:
Fair
(5 out of 9)
Substructure condition rating:
Fair
(5 out of 9)
Appraisal:
Functionally obsolete
Sufficiency rating: 56.7
(out of 100)
Average daily traffic
(as of 2006)
22,187
Categories
Allentown, Pennsylvania
(8)
Arch
(7,542)
Built 1929
(460)
Built during 1920s
(4,005)
Deck arch
(6,639)
Functionally obsolete
(5,033)
Lehigh County, Pennsylvania
(34)
NR-eligible
(2,570)
Open
(21,541)
Open-spandrel arch
(194)
PA 1002
(1)
Pennsylvania
(1,694)
Span length 175-250 feet
(978)
Total length 1000-2500 feet
(693)
US 22
(16)
Comments
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