Structure 2027A047 03493 · Columbia County, OR

US 26 (hwy 047) over North Fork Wolf Creek

Carries US 26 (hwy 047) over North Fork Wolf Creek, 18.5 Mi W HWY 37 Jct.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure and Substructure at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT90 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

90 ft end to end, longest span 38 ft. Lengths and the car on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a slab bridge.

Built1938rebuilt 1975
Length90.2 ft27.5 m
Daily traffic8,468counted 2022
Last inspectedMay 2023every 24 months

Location

StateOregon
CountyColumbia
Location18.5 Mi W HWY 37 Jct
CarriesUS 26 (hwy 047)
CrossesNorth Fork Wolf Creek
Coordinates45.78065, -123.34678

Physical Characteristics

MaterialPrestressed Concrete
DesignSlab
Total Length90.2 ft (27.5 m)
Max Span38.1 ft (11.6 m)
Deck Width63.6 ft (19.4 m)
Deck Area533.5 sq m
Main Spans3
Year Built1938 (reconstructed 1975)

Traffic

Avg Daily Traffic8,468 (2022)
Truck Traffic10%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMay 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical3 — Scour critical
Structure Number02027A047 03493

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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