Structure 7949F00900341 · Clatsop County, OR

Us101 (hwy 9) over Columbia River & HWY 92

Carries Us101 (hwy 9) over Columbia River & HWY 92, Oregon Approach.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructure6/9 · Satisfactory
Substructure6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT2,181 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 6/9Substructure 6/9

2,181 ft end to end: about 6.1 football fields. 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 deck truss.

Built196660 years old
Length2181.4 ft664.9 m
Daily traffic22,526counted 2022
Last inspectedOctober 2023every 24 months

Location

StateOregon
CountyClatsop
LocationOregon Approach
CarriesUs101 (hwy 9)
CrossesColumbia River & HWY 92
Coordinates46.18835, -123.84935

Physical Characteristics

MaterialSteel
DesignTruss - Deck
Total Length2181.4 ft (664.9 m)
Max Span304.1 ft (92.7 m)
Deck Width33.1 ft (10.1 m)
Deck Area6715.5 sq m
Main Spans1
Year Built1966

Traffic

Avg Daily Traffic22,526 (2022)
Truck Traffic4%
Lanes On Bridge2
Lanes Under Bridge4

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour CriticalNot applicable
Structure Number07949F00900341

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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