Historic Bridges
of the United States
Grand Ridge Road Bridge
Grundy County
,
Illinois
Overview
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Photos
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Overview
Photos taken March 2006 by Bill Burmaster
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Deck view
Map
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Map links:
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TopoZone
Terraserver USA
Facts
Overview
Closed pony truss bridge over West Fork Mazon River on Grand Ridge Road (TR 109B), .49 mi. east of Tynan Rd
Location
Grundy County
,
Illinois
Status
Closed to traffic
History
Built ca. 1910; rehabilitated 1965
Design
Pin-connected, 5-panel Pratt pony truss
Dimensions
Length of largest span: 70.8 ft.
Total length: 71.8 ft.
Deck width: 11.8 ft.
Approximate latitude, longitude
+41.24260, -88.36184
(decimal degrees)
41°14'33" N, 88°21'43" W
(degrees°minutes'seconds")
Inventory numbers
IL 032-4995
(Illinois bridge number)
BH 15258
(Bridgehunter.com ID)
Inspection
(as of 04/2006)
Appraisal:
Structurally deficient
Sufficiency rating: 16.0
(out of 100)
Average daily traffic
(as of 2005)
50
Categories
5-panel truss
(95)
Closed
(1,303)
Grundy County, Illinois
(5)
Illinois
(820)
Owned by township
(1,180)
Pin-connected
(417)
Pony truss
(9,385)
Pratt truss
(1,405)
Span length 50-75 feet
(4,650)
Structurally deficient
(10,792)
Total length 50-75 feet
(4,935)
Truss
(15,742)
Wooden deck
(5,156)
Update Log
April 3, 2006: Posted photos from Bill Burmaster
Sources
Bill Burmaster
Comments
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