Structure 35C152117300085 · Klamath County, OR

Mcculley Road over Jirrigation Canal

Carries Mcculley Road over Jirrigation Canal, 0085 Mi S Of HWY 50.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT43 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

43 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.

Built197947 years old
Length43.0 ft13.1 m
Daily traffic164counted 2020
Last inspectedFebruary 2023every 24 months

Location

StateOregon
CountyKlamath
Location0085 Mi S Of HWY 50
CarriesMcculley Road
CrossesJirrigation Canal
Coordinates42.00100, -121.42780

Physical Characteristics

MaterialPrestressed Concrete
DesignSlab
Total Length43.0 ft (13.1 m)
Max Span41.0 ft (12.5 m)
Deck Width32.2 ft (9.8 m)
Deck Area128.4 sq m
Main Spans1
Year Built1979

Traffic

Avg Daily Traffic164 (2020)
Truck Traffic10%
Lanes On Bridge2

Inspection & Ownership

Last InspectionFebruary 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalUnknown
Structure Number35C152117300085

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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