Structure 8241S001 21697 · Linn County, OR

I-5 (hwy 1) SB over Courtney Creek

Carries I-5 (hwy 1) SB over Courtney Creek, 136 Mi N Lane-linn Line.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure at 5 of 9.

How ratings work
Decksets the rating5/9 · Fair
Superstructuresets the rating5/9 · Fair
Substructure6/9 · Satisfactory
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT126 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 5/9 · sets the ratingSubstructure 6/9

126 ft end to end, longest span 42 ft. Lengths and the semi-truck 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.

Built195967 years old
Length126.0 ft38.4 m
Daily traffic21,606counted 2022
Last inspectedDecember 2024every 24 months

Location

StateOregon
CountyLinn
Location136 Mi N Lane-linn Line
CarriesI-5 (hwy 1) SB
CrossesCourtney Creek
Coordinates44.39467, -123.06150

Physical Characteristics

MaterialConcrete Continuous
DesignTee Beam
Total Length126.0 ft (38.4 m)
Max Span42.0 ft (12.8 m)
Deck Width42.3 ft (12.9 m)
Deck Area495.4 sq m
Main Spans3
Year Built1959

Traffic

Avg Daily Traffic21,606 (2022)
Truck Traffic25%
Lanes On Bridge2

Inspection & Ownership

Last InspectionDecember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical3 — Scour critical
Structure Number08241S001 21697

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.

Nearby Bridges