Structure 18172 000 00080 · Benton County, OR

Bruce RD over Overflow

Carries Bruce RD over Overflow, 0079 Mi W Of HWY 99-w.

Overall conditionFair

Set by its lowest-rated component: Substructure at 5 of 9.

How ratings work
Deck8/9 · Very Good
Superstructure8/9 · Very Good
Substructuresets the rating5/9 · Fair
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT37 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 5/9 · sets the rating

37 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 slab bridge.

Built199630 years old
Length37.1 ft11.3 m
Daily traffic129counted 2020
Last inspectedJuly 2024every 24 months

Location

StateOregon
CountyBenton
Location0079 Mi W Of HWY 99-w
CarriesBruce RD
CrossesOverflow
Coordinates44.38955, -123.29895

Physical Characteristics

MaterialPrestressed Concrete
DesignSlab
Total Length37.1 ft (11.3 m)
Max Span34.1 ft (10.4 m)
Deck Width24.9 ft (7.6 m)
Deck Area85.9 sq m
Main Spans1
Year Built1996

Traffic

Avg Daily Traffic129 (2020)
Truck Traffic5%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number18172 000 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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