Structure 21738003AF00275 · Multnomah County, OR

Hwy003af_se over Overmulti_use

Carries Hwy003af_se over Overmulti_use, Portland.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT360 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

360 ft end to end, longest span 100 ft: about 5 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.

Built20179 years old
Length359.9 ft109.7 m
Daily traffic8,000counted 2016
Last inspectedFebruary 2023every 24 months

Location

StateOregon
CountyMultnomah
LocationPortland
CarriesHwy003af_se
CrossesOvermulti_use
Coordinates45.46388, -122.66850

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length359.9 ft (109.7 m)
Max Span100.1 ft (30.5 m)
Deck Width40.0 ft (12.2 m)
Deck Area1338.3 sq m
Main Spans4
Year Built2017

Traffic

Avg Daily Traffic8,000 (2016)
Truck Traffic2%
Lanes On Bridge1

Inspection & Ownership

Last InspectionFebruary 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number21738003AF00275

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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