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I-5 - Winchester Bridge (Southbound)

Photos 

I-5 - Winchester Bridge (Southbound)

Photo taken by Michael Goff

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BH Photo #193788

Map 

Street View 

Facts 

Overview
Warren deck truss bridge over North Umpqua River on I-5 Southbound
Location
Winchester, Douglas County, Oregon
Status
Open to traffic
History
Built 1964; rehabilitated 1996
Builder
- Ivan D. Merchant (Bridge Engineer)
Design
The southbound Winchester Bridge on Interstate 5 is a 17-span structure consisting of five 141.5-foot main span steel Warren deck truss spans. The four span north approach is made up from a singe 40-foot simply reinforced concrete girder span and three approximately 82-foot pre-stressed girder spans. The south approach consists of eight 82.0-foot pre-stressed girder spans. The roadway is 30-feet wide which carries the two 12-foot southbound lanes.
The overall design of the structure replicates the earlier northbound bridge that was constructed in 1955. The bridge was designed by Oregon State Highway Department bridge designer T.C. Roake under the guidance of State Bridge Engineer Ivan D. Merchant.
Dimensions
Length of largest span: 141.5 ft.
Total length: 1,621.7 ft.
Deck width: 30.0 ft.
Approximate latitude, longitude
+43.28194, -123.35583   (decimal degrees)
43°16'55" N, 123°21'21" W   (degrees°minutes'seconds")
Approximate UTM coordinates
10/471129/4792186 (zone/easting/northing)
Quadrangle map:
Winchester
Inventory numbers
OR 07663A (Oregon Dept. of Transportation structure number)
BH 48159 (Bridgehunter.com ID)
Inspection (as of 07/2015)
Deck condition rating: Satisfactory (6 out of 9)
Superstructure condition rating: Satisfactory (6 out of 9)
Substructure condition rating: Satisfactory (6 out of 9)
Sufficiency rating: 80.7 (out of 100)
Average daily traffic (as of 2014)
30,600

Update Log 

  • April 3, 2013: New Street View added by Mike Goff
  • February 17, 2011: Added by Michael Goff

Sources 

  • Mike Goff - michael [dot] goff [at] hotmail [dot] com