Structure 156310000000000 · Okfuskee County, OK

I-40 over Co. Rd. Under

Carries I-40 over Co. Rd. Under, 5.3 Mi E Seminole Co.

Overall conditionFair

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

How ratings work
Culvertsets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
24 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 6/9

A culvert 24 ft across. Lengths are drawn to scale; at this length a semi-truck would be a speck. Each part is colored by its latest inspection rating. The inventory records lengths but not heights, so those are drawn as typical for a culvert.

Built196363 years old
Length23.6 ft7.2 m
Daily traffic7,450counted 2022
Last inspectedSeptember 2023every 24 months

Location

StateOklahoma
CountyOkfuskee
Location5.3 Mi E Seminole Co
CarriesI-40
CrossesCo. Rd. Under
Coordinates35.40997, -96.35291

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length23.6 ft (7.2 m)
Max Span21.7 ft (6.6 m)
Deck Width53.1 ft (16.2 m)
Deck Area116.6 sq m
Main Spans1
Year Built1963

Traffic

Avg Daily Traffic7,450 (2022)
Truck Traffic36%
Lanes On Bridge2
Lanes Under Bridge2

Inspection & Ownership

Last InspectionSeptember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number156310000000000

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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