Structure 16637 047C06935 · Washington County, OR

US 26 (hwy 047) Co over Barnes RD Conn

Carries US 26 (hwy 047) Co over Barnes RD Conn, 5.1 Mi W Of Portland Cc.

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
CAR · 15 FT42 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

42 ft end to end. Lengths and the car 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 rigid-frame bridge.

Built198541 years old
Length41.7 ft12.7 m
Daily traffic16,958counted 2022
Last inspectedJune 2024every 24 months

Location

StateOregon
CountyWashington
Location5.1 Mi W Of Portland Cc
CarriesUS 26 (hwy 047) Co
CrossesBarnes RD Conn
Coordinates45.51020, -122.77790

Physical Characteristics

MaterialConcrete
DesignFrame
Total Length41.7 ft (12.7 m)
Max Span36.7 ft (11.2 m)
Deck Width149.9 ft (45.7 m)
Deck Area580.4 sq m
Main Spans1
Year Built1985

Traffic

Avg Daily Traffic16,958 (2022)
Truck Traffic4%
Lanes On Bridge4
Lanes Under Bridge2

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number16637 047C06935

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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