Structure 12405 001100146 · Linn County, OR

Columbus St. over Oak Creek

Carries Columbus St. over Oak Creek, 014 Miles South Of Albany.

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 FT101 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

101 ft end to end, longest span 25 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 tee-beam bridge.

Built1958rebuilt 1991
Length101.0 ft30.8 m
Daily traffic2,987counted 2021
Last inspectedOctober 2024every 24 months

Location

StateOregon
CountyLinn
Location014 Miles South Of Albany
CarriesColumbus St.
CrossesOak Creek
Coordinates44.59410, -123.07965

Physical Characteristics

MaterialConcrete
DesignTee Beam
Total Length101.0 ft (30.8 m)
Max Span24.9 ft (7.6 m)
Deck Width42.7 ft (13 m)
Deck Area400.4 sq m
Main Spans4
Year Built1958 (reconstructed 1991)

Traffic

Avg Daily Traffic2,987 (2021)
Truck Traffic15%
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical3 — Scour critical
Structure Number12405 001100146

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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