Historic Bridges
of the United States
Caldwell Bridge
Butler County
,
Pennsylvania
Overview
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TopoZone
Terraserver USA
Facts
Overview
Pony truss bridge over Connoquenessing Creek on TR 500 in Shanor-Northvue
Location
Butler County
,
Pennsylvania
Status
Open to traffic
History
Built 1910
Design
Pratt pony truss
Dimensions
Length of largest span: 56.1 ft.
Total length: 61.0 ft.
Deck width: 14.8 ft.
Recognition
Eligible for the National Register of Historic Places
Approximate latitude, longitude
+40.91667, -79.88333
(decimal degrees)
40°55'00" N, 79°52'60" W
(degrees°minutes'seconds")
Inventory numbers
PA 10 7205 0500 0065
(Pennsylvania bridge number)
BH 30577
(Bridgehunter.com ID)
Inspection
(as of 11/2005)
Deck condition rating:
Satisfactory
(6 out of 9)
Superstructure condition rating:
Poor
(4 out of 9)
Substructure condition rating:
Satisfactory
(6 out of 9)
Appraisal:
Structurally deficient
Sufficiency rating: 38.5
(out of 100)
Average daily traffic
(as of 2002)
100
Categories
Built 1910
(463)
Built during 1910s
(3,574)
Butler County, Pennsylvania
(13)
NR-eligible
(2,571)
Open
(21,663)
Owned by county
(14,185)
Pennsylvania
(1,696)
Pony truss
(9,399)
Pratt truss
(1,459)
Span length 50-75 feet
(4,671)
Structurally deficient
(10,809)
Total length 50-75 feet
(4,948)
Truss
(15,835)
Comments
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