Structure BB014 000000000 · Washington County, OR

153rd AVE over Beaverton Creek

Carries 153rd AVE over Beaverton Creek, 001 Mi N Tv HWY.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure8/9 · Very Good
Substructure7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT103 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 8/9Substructure 7/9

103 ft end to end, longest span 56 ft. 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 slab bridge.

Built198541 years old
Length103.0 ft31.4 m
Daily traffic2,833counted 2020
Last inspectedSeptember 2024every 24 months

Location

StateOregon
CountyWashington
Location001 Mi N Tv HWY
Carries153rd AVE
CrossesBeaverton Creek
Coordinates45.49314, -122.83242

Physical Characteristics

MaterialPrestressed Concrete
DesignSlab
Total Length103.0 ft (31.4 m)
Max Span56.1 ft (17.1 m)
Deck Width47.9 ft (14.6 m)
Deck Area458.4 sq m
Main Spans2
Year Built1985

Traffic

Avg Daily Traffic2,833 (2020)
Truck Traffic5%
Lanes On Bridge2

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical4 — Foundations need monitoring
Structure NumberBB014 000000000

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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