Structure 9252 061 00177 · Multnomah County, OR

Jefferson ST over HWY 61

Carries Jefferson ST over HWY 61, 0.2 Mi S Of Taylor ST.

Overall conditionFair

Set by its lowest-rated component: Deck at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure7/9 · Good
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT247 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 7/9

247 ft end to end, longest span 130 ft: about 3 semi-trucks nose to tail. 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 multi-beam bridge.

Built196759 years old
Length247.0 ft75.3 m
Daily traffic89,410counted 2020
Last inspectedJuly 2023every 24 months

Location

StateOregon
CountyMultnomah
Location0.2 Mi S Of Taylor ST
CarriesJefferson ST
CrossesHWY 61
Coordinates45.51697, -122.68785

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length247.0 ft (75.3 m)
Max Span129.6 ft (39.5 m)
Deck Width60.0 ft (18.3 m)
Deck Area1378.0 sq m
Main Spans2
Year Built1967

Traffic

Avg Daily Traffic89,410 (2020)
Truck Traffic11%
Lanes On Bridge2
Lanes Under Bridge9

Inspection & Ownership

Last InspectionJuly 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number09252 061 00177

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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