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Crooked River Bridge

Crook County, Oregon
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Photos 

General Perspective View Of The Elliot Lane Bridge, View Looking Northwest

Photo taken by Historic American Engineering Record

View photos at Library of Congress

Map 

Facts 

Overview
Lost double intersection Warren through truss bridge over Crooked River on Elliot Lane
Location
Crook County, Oregon
Status
Replaced by a pre-cast concrete girder bridge in 2003
History
Built 1936, Replaced 2003
Builder
- Coast Bridge Co. of Portland, Oregon (Contractor)
Design
The Crooked River Bridge is a rare example of a Double Intersection Warren Through Truss (the main span), with a secondary span comprised of a Warren Pony Truss with Polygonal Upper Chords. Both spans are of riveted steel construction. The through truss main span was relocated to its current site in the 1930's, and attached to the pony truss span to accommodate the width of the Crooked River at this crossing. The two-span structure has an overall length of 206 feet, and overall width of 18.5 feet. The vertical clearance of the through truss span is 16 feet. The Warren double-intersection truss is one of two remaining of this type in the State of Oregon.
(HAER OR-133)
Dimensions
Length of largest span: 125.0 ft.
Total length: 206.0 ft.
Deck width: 17.7 ft.
Also called
Elliot Lane Bridge
Approximate latitude, longitude
+44.33667, -120.92667   (decimal degrees)
44°20'12" N, 120°55'36" W   (degrees°minutes'seconds")
Approximate UTM coordinates
10/665285/4911357 (zone/easting/northing)
USGS topographic map
Houston Lake
Inventory numbers
ORNBI 13C12 012400138 (Oregon bridge number on the National Bridge Inventory)
BH 42387 (Bridgehunter.com ID)
Inspection (as of 08/1998)
Deck condition rating: Satisfactory (6 out of 9)
Superstructure condition rating: Fair (5 out of 9)
Substructure condition rating: Satisfactory (6 out of 9)
Appraisal: Functionally obsolete
Sufficiency rating: 43.9 (out of 100)
Average daily traffic (as of 1996)
145

Categories 

5-panel truss (374)
7-panel truss (246)
A-frame portal (232)
Built 1936 (744)
Built during 1930s (8,548)
Coast Bridge Co. (11)
Crook County, Oregon (3)
Crooked River (Oregon) (5)
Double-intersection Warren through truss (72)
Double-intersection Warren truss (220)
Functionally obsolete (7,035)
HAER documented (781)
Lally columns (90)
Lost (10,351)
Lost 2003 (439)
 Lost during 2000s (3,090)
One-lane traffic (7,111)
Oregon (689)
Owned by county (16,482)
Polygonal Warren pony truss (356)
Polygonal Warren truss (739)
Pony truss (13,215)
Relocated (364)
Replaced by new bridge (7,130)
Riveted (1,011)
Span length 125-175 feet (2,950)
Through truss (9,200)
Total length 175-250 feet (2,788)
Truss (23,559)
Warren truss (3,955)

Update Log 

  • April 20, 2009: Added by Michael Goff

Sources 

  • Mike Goff - michael [dot] goff [at] hotmail [dot] com
  • HAER OR-133 - Crooked River Bridge, Spanning Crooked River on Elliot Lane (County Road, Prineville vicinity, Crook County, OR
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Comments 

Crooked River Bridge
Posted August 21, 2012, by Rebecca Burrow (rgburrow [at] gmail [dot] com)

Both pieces of this bridge have been relocated and restored as separate pedestrian spans in Prineville, near the county fairgrounds.