Structure 67T009920700000 · Washington County, OR

Greenburg Road over Ash Creek

Carries Greenburg Road over Ash Creek, 001 Mi South HWY 217.

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
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT48 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

48 ft end to end, longest span 22 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.

Built198937 years old
Length47.9 ft14.6 m
Daily traffic24,002counted 2020
Last inspectedJuly 2024every 24 months

Location

StateOregon
CountyWashington
Location001 Mi South HWY 217
CarriesGreenburg Road
CrossesAsh Creek
Coordinates45.44050, -122.77982

Physical Characteristics

MaterialPrestressed Concrete
DesignSlab
Total Length47.9 ft (14.6 m)
Max Span22.0 ft (6.7 m)
Deck Width61.4 ft (18.7 m)
Deck Area273.0 sq m
Main Spans2
Year Built1989

Traffic

Avg Daily Traffic24,002 (2020)
Truck Traffic10%
Lanes On Bridge3

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical3 — Scour critical
Structure Number67T009920700000

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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