Structure 35C228121000940 · Klamath County, OR

Campbell RD over Portion Of Nfk Sprague R

Carries Campbell RD over Portion Of Nfk Sprague R, 008mi West Of Camp Six RD.

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 overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT55 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

55 ft end to end, longest span 28 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.

Built198244 years old
Length55.1 ft16.8 m
Daily traffic44counted 2020
Last inspectedJuly 2024every 24 months

Location

StateOregon
CountyKlamath
Location008mi West Of Camp Six RD
CarriesCampbell RD
CrossesPortion Of Nfk Sprague R
Coordinates42.45614, -121.11263

Physical Characteristics

MaterialWood or Timber
DesignStringer/Multi-beam
Total Length55.1 ft (16.8 m)
Max Span27.9 ft (8.5 m)
Deck Width32.2 ft (9.8 m)
Deck Area164.6 sq m
Main Spans2
Year Built1982

Traffic

Avg Daily Traffic44 (2020)
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 CriticalUnknown
Structure Number35C228121000940

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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