Structure 2758A935000000 · Multnomah County, OR

Belmont ST over Or 99e (hwy 001e)

Carries Belmont ST over Or 99e (hwy 001e), East End Morrison 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
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,733 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

1,733 ft end to end, longest span 127 ft: about 4.8 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 multi-beam bridge.

Built195868 years old
Length1732.9 ft528.2 m
Daily traffic31,139counted 2020
Last inspectedFebruary 2025every 12 months

Location

StateOregon
CountyMultnomah
LocationEast End Morrison Br
CarriesBelmont ST
CrossesOr 99e (hwy 001e)
Coordinates45.51652, -122.66394

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length1732.9 ft (528.2 m)
Max Span127.0 ft (38.7 m)
Deck Width45.9 ft (14 m)
Deck Area7394.8 sq m
Main Spans27
Year Built1958

Traffic

Avg Daily Traffic31,139 (2020)
Truck Traffic10%
Lanes On Bridge2
Lanes Under Bridge17

Inspection & Ownership

Last InspectionFebruary 2025
Inspection FrequencyEvery 12 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure Number02758A935000000

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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