Structure 14186 000 00010 · Benton County, OR

Dodge Island RD over Dodge Island Slough

Carries Dodge Island RD over Dodge Island Slough, 0010 Mi E Of Old River RD.

Overall conditionPoor

Set by its lowest-rated component: Substructure at 3 of 9.

How ratings work
Deck8/9 · Very Good
Superstructure7/9 · Good
Substructuresets the rating3/9 · Serious
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT119 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 7/9Substructure 3/9 · sets the rating

119 ft end to end, longest span 29 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 multi-beam bridge.

Built196363 years old
Length119.1 ft36.3 m
Daily traffic177counted 2021
Last inspectedJuly 2024every 12 months

Location

StateOregon
CountyBenton
Location0010 Mi E Of Old River RD
CarriesDodge Island RD
CrossesDodge Island Slough
Coordinates44.29195, -123.22972

Physical Characteristics

MaterialWood or Timber
DesignStringer/Multi-beam
Total Length119.1 ft (36.3 m)
Max Span28.9 ft (8.8 m)
Deck Width23.0 ft (7 m)
Deck Area254.1 sq m
Main Spans4
Year Built1963

Traffic

Avg Daily Traffic177 (2021)
Truck Traffic20%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 12 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalUnknown
Structure Number14186 000 00010

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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