Structure 25A26 C12100150 · Harney County, OR

Foley Drive over Silvies River

Carries Foley Drive over Silvies River, 015 Mi US 20/395.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT125 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

125 ft end to end, longest span 25 ft. 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.

Built195868 years old
Length125.0 ft38.1 m
Daily traffic217counted 2020
Last inspectedSeptember 2024every 24 months

Location

StateOregon
CountyHarney
Location015 Mi US 20/395
CarriesFoley Drive
CrossesSilvies River
Coordinates43.61360, -119.05923

Physical Characteristics

MaterialConcrete Continuous
DesignStringer/Multi-beam
Total Length125.0 ft (38.1 m)
Max Span24.9 ft (7.6 m)
Deck Width28.9 ft (8.8 m)
Deck Area335.3 sq m
Main Spans5
Year Built1958

Traffic

Avg Daily Traffic217 (2020)
Truck Traffic20%
Lanes On Bridge2

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical3 — Scour critical
Structure Number25A26 C12100150

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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