Structure 222243060 00080 · Columbia County, OR

Pebble Creek Road over Pebble Creek

Carries Pebble Creek Road over Pebble Creek, 010 Mi SE Of Vernonia.

Overall conditionGood

Set by its lowest-rated component: Deck and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructuresets the rating7/9 · Good
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT175 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 7/9 · sets the rating

175 ft end to end: about 2 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.

Built201610 years old
Length174.9 ft53.3 m
Daily traffic405counted 2020
Last inspectedMay 2023every 24 months

Location

StateOregon
CountyColumbia
Location010 Mi SE Of Vernonia
CarriesPebble Creek Road
CrossesPebble Creek
Coordinates45.84947, -123.17281

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length174.9 ft (53.3 m)
Max Span174.9 ft (53.3 m)
Deck Width30.5 ft (9.3 m)
Deck Area495.7 sq m
Main Spans1
Year Built2016

Traffic

Avg Daily Traffic405 (2020)
Truck Traffic20%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMay 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number222243060 00080

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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