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Hoffman Covered Bridge 37-22-08

Photos 

Hoffman Covered Bridge

Photo taken by Michael Goff on March 20, 2010

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BH Photo #161099

Map 

Street View 

Description 

The Hoffman Covered Bridge spans Crabtree Creek one mile northeast of the town of Crabtree. Both the town and the creek were named for John Crabtree, who settled in the area in 1845.

Gothic style windows grace this structure, instead of the usual open Linn County truss design. The portal design, originally rounded when the bridge was constructed, was enlarged and squared to allow passage of larger loads. The upper chords show signs of being shaped by hand and as most bridge crews in 1936 had yet to use power tools, logs were often cut nearby. Shaping of the chord timbers was done with hand adzes prior to being placed across the stream.

The roofed river crossing was built by Lee Hoffman following State Highway Department specifications.

(Reference: Roofs Over Rivers, by Bill and Nick Cockrell)

Facts 

Overview
Covered Howe through truss bridge over Crabtree Creek on Hungry Hill Drive
Location
Linn County, Oregon
Status
Open to traffic
History
Built 1936
Builder
- Lee Hoffman (Contractor)
Design
Covered Howe Through truss
Dimensions
Length of largest span: 89.9 ft.
Total length: 148.0 ft.
Deck width: 17.1 ft.
Vertical clearance above deck: 10.1 ft.
Recognition
Posted to the National Register of Historic Places on February 17, 1987
Approximate latitude, longitude
+44.65306, -122.89028   (decimal degrees)
44°39'11" N, 122°53'25" W   (degrees°minutes'seconds")
Approximate UTM coordinates
10/508699/4944416 (zone/easting/northing)
Quadrangle map:
Crabtree
Inventory numbers
OR 01724 (Oregon Dept. of Transportation structure number)
NRHP 87000017 (National Register of Historic Places reference number)
BH 30079 (Bridgehunter.com ID)
Inspection (as of 08/2015)
Deck condition rating: Good (7 out of 9)
Superstructure condition rating: Fair (5 out of 9)
Substructure condition rating: Satisfactory (6 out of 9)
Appraisal: Functionally obsolete
Sufficiency rating: 44.4 (out of 100)
Average daily traffic (as of 2010)
258

Update Log 

  • October 4, 2017: New photos from Mike Garland
  • March 10, 2014: Updated by Dave King: Added NRHP info & imported photos
  • April 26, 2010: New Street View added by Michael Goff
  • April 5, 2010: Updated by Michael Goff: added bridge history and photos

Sources 

  • Mike Goff - michael [dot] goff [at] hotmail [dot] com
  • Historic Highway Bridges of Oregon - Dwight A. Smith, James B. Norman & Pieter T. Dykman, Oregon Historical Society Press, 1989
  • Hoffman Covered Bridge - Oregon Covered Bridge Guide
  • Dave King - DKinghawkfan [at] hotmail [dot] com
  • Mike Garland - Rapier342 [at] comcast [dot] net