Structure 8328 001 30038 · Multnomah County, OR

HWY 001 over Willamette River

Carries HWY 001 over Willamette River, 1.1 Mi S Of Burnside Br.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,044 FT OVERALL200 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

1,044 ft end to end, longest span 440 ft: about 2.9 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
Length1044.0 ft318.2 m
Daily traffic140,648counted 2022
Last inspectedJuly 2023every 24 months

Location

StateOregon
CountyMultnomah
Location1.1 Mi S Of Burnside Br
CarriesHWY 001
CrossesWillamette River
Coordinates45.50767, -122.66933

Physical Characteristics

MaterialSteel
DesignTruss - Deck
Total Length1044.0 ft (318.2 m)
Max Span440.0 ft (134.1 m)
Deck Width115.5 ft (35.2 m)
Deck Area11200.6 sq m
Main Spans3
Year Built1966

Traffic

Avg Daily Traffic140,648 (2022)
Truck Traffic10%
Lanes On Bridge8

Inspection & Ownership

Last InspectionJuly 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical5 — Stable for scour
Structure Number08328 001 30038

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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