Structure 9268 061 00310 · Multnomah County, OR

Both Decks HWY 61 over NW Front ST Rr

Carries Both Decks HWY 61 over NW Front ST Rr, W Fremont Intrche.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructure6/9 · Satisfactory
Substructure6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT385 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 6/9Substructure 6/9

385 ft end to end, longest span 192 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 box-beam bridge.

Built197353 years old
Length384.8 ft117.3 m
Daily traffic103,251counted 2022
Last inspectedJuly 2023every 24 months

Location

StateOregon
CountyMultnomah
LocationW Fremont Intrche
CarriesBoth Decks HWY 61
CrossesNW Front ST Rr
Coordinates45.53590, -122.68560

Physical Characteristics

MaterialSteel Continuous
DesignBox Beam - Multiple
Total Length384.8 ft (117.3 m)
Max Span191.9 ft (58.5 m)
Deck Width143.0 ft (43.6 m)
Deck Area5114.3 sq m
Main Spans2
Year Built1973

Traffic

Avg Daily Traffic103,251 (2022)
Truck Traffic8%
Lanes On Bridge8
Lanes Under Bridge6

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 Number09268 061 00310

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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