Structure 51C33 000 00001 · Multnomah County, OR

Columbia BLVD over B-103 X NE 33rd AVE

Carries Columbia BLVD over B-103 X NE 33rd AVE, In NE Portland.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructure8/9 · Very Good
Substructure8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT101 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 8/9Substructure 8/9

101 ft end to end, longest span 40 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.

Built196363 years old
Length101.0 ft30.8 m
Daily traffic30,302counted 2020
Last inspectedJuly 2024every 24 months

Location

StateOregon
CountyMultnomah
LocationIn NE Portland
CarriesColumbia BLVD
CrossesB-103 X NE 33rd AVE
Coordinates45.57426, -122.63357

Physical Characteristics

MaterialConcrete Continuous
DesignTee Beam
Total Length101.0 ft (30.8 m)
Max Span40.0 ft (12.2 m)
Deck Width82.0 ft (25 m)
Deck Area770 sq m
Main Spans3
Year Built1963

Traffic

Avg Daily Traffic30,302 (2020)
Truck Traffic20%
Lanes On Bridge6
Lanes Under Bridge2

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number51C33 000 00001

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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