Structure 7849A001 26654 · Marion County, OR

Concomly Road over I-5 (hwy 1)

Carries Concomly Road over I-5 (hwy 1), 053 Mi S Woodburn Ncl.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT366 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 7/9

366 ft end to end, longest span 153 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.

Built197551 years old
Length366.1 ft111.6 m
Daily traffic94,995counted 2022
Last inspectedAugust 2024every 24 months

Location

StateOregon
CountyMarion
Location053 Mi S Woodburn Ncl
CarriesConcomly Road
CrossesI-5 (hwy 1)
Coordinates45.08860, -122.94429

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignStringer/Multi-beam
Total Length366.1 ft (111.6 m)
Max Span152.9 ft (46.6 m)
Deck Width34.4 ft (10.5 m)
Deck Area1171.8 sq m
Main Spans2
Year Built1975

Traffic

Avg Daily Traffic94,995 (2022)
Truck Traffic14%
Lanes On Bridge2
Lanes Under Bridge6

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number07849A001 26654

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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