US Bridges

I-40 over Co. Rd. under

Fair

Okfuskee County, Oklahoma · 13.5 MI E Seminole CO · Structure no. 156430000000000

Built
1963
62 years old
Condition
Fair
inspected October 2023
Type
Culvert
Concrete
Length
22 ft
1 main span
Daily traffic
15,900
2022 count
Owner
State
State Highway Agency

About this bridge

I-40 over Co. Rd. under is a concrete culvert carrying I-40 over Co. Rd. under in Okfuskee County, Oklahoma. It was built in 1963, so it is 62 years old, older than the Oklahoma average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 15,900 vehicles a day, roughly 36% of them trucks, projected to reach 25,440 by 2042. The structure is 22 ft (6.7 m) long and 158 ft wide. If it were closed, the detour would be 21.7 mi (35 km).

Location

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CarriesI-40
CrossesCo. Rd. under
Location13.5 MI E Seminole CO
RouteInterstate 40
CountyOkfuskee County
StateOklahoma
Coordinates35.42847, -96.21147
Functional classRural Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.7 US tons
Inventory rating25.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length22 ft (6.7 m)
Longest span20 ft (6.1 m)
Deck width158 ft (48.2 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,900 (2022)
Projected traffic25,440 by 2042
Trucks36%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed21.7 mi (35 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$682,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-40 over Co. Rd. under built?

It was built in 1963, making it 62 years old in 2025.

What condition is I-40 over Co. Rd. under in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2023.

How much traffic does I-40 over Co. Rd. under carry?

About 15,900 vehicles per day (2022 count), of which roughly 36% are trucks.

How long is I-40 over Co. Rd. under?

The structure is 22 ft (6.7 m) long with a longest span of 20 ft (6.1 m) and a deck 158 ft wide.

Who owns I-40 over Co. Rd. under?

It is owned by the State Highway Agency.