Structure 25B36 000 00119 · Multnomah County, OR

SW Vista AVE over B-36 Over SW Jefferson

Carries SW Vista AVE over B-36 Over SW Jefferson, 5 Blks S Of W Burnside ST.

Overall conditionFair

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

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

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT549 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 6/9Substructure 5/9 · sets the rating

549 ft end to end: about 1.5 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 arch.

Built1926100 years old
Length548.9 ft167.3 m
Daily traffic10,700counted 2020
Last inspectedSeptember 2024every 24 months

Location

StateOregon
CountyMultnomah
Location5 Blks S Of W Burnside ST
CarriesSW Vista AVE
CrossesB-36 Over SW Jefferson
Coordinates45.51911, -122.69769

Physical Characteristics

MaterialConcrete
DesignArch - Deck
Total Length548.9 ft (167.3 m)
Max Span248.0 ft (75.6 m)
Deck Width52.2 ft (15.9 m)
Deck Area2660.1 sq m
Main Spans1
Year Built1926

Traffic

Avg Daily Traffic10,700 (2020)
Truck Traffic2%
Lanes On Bridge2
Lanes Under Bridge4

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is on the National Register of Historic Places
Scour CriticalNot applicable
Structure Number25B36 000 00119

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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