Co. Rd. over I-40 EB under

Good

Seminole County, Oklahoma · 14 MI E Pott CO · Structure no. 160160000000000

Built: 1964; 61 years old
Condition: Good; inspected February 2024
Type: Slab; Concrete Continuous
Length: 117 ft; 3 main spans
Daily traffic: 75; 2022 count
Owner: State; State Highway Agency

About this bridge

Co. Rd. over I-40 EB under is a concrete continuous slab carrying Co. Rd. over I-40 EB under in Seminole County, Oklahoma. It was built in 1964, so it is 61 years old, older than the Oklahoma average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 75 vehicles a day, roughly 22% of them trucks, projected to reach 120 by 2042. The structure is 117 ft (35.7 m) long and 29 ft wide.

Location

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CarriesCo. Rd.

CrossesI-40 EB under

Location14 MI E Pott CO

RouteCounty Highway N3640

CountySeminole County

StateOklahoma

Coordinates35.38035, -96.52975

Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

Component	Rating	Meaning
Deck	7 Good	Some minor problems.
Superstructure	7 Good	Some minor problems.
Substructure	7 Good	Some minor problems.

Last inspectionFebruary 2024

Inspection intervalevery 24 months

Operating statusOpen, no restriction

ScourBridge not over waterway

Structural evaluation6: Equal to present minimum criteria

Deck geometry2: Basically intolerable, requiring high priority of replacement

Approach roadway alignment6: Equal to present minimum criteria

Operating rating46.6 US tons

Inventory rating27.9 US tons

Structure

Structure typeSlab

MaterialConcrete Continuous

DeckConcrete, cast-in-place

Main spans3

Design loadH 15

Structure length117 ft (35.7 m)

Longest span45 ft (13.7 m)

Deck width29 ft (8.8 m)

Roadway width24 ft (7.3 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2022)

Projected traffic120 by 2042

Trucks22%

Lanes on structure2

Traffic directionOne-way traffic

CarriesHighway

CrossesHighway

Detour if closed—

TollOn a free road

National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency

Maintained byState Highway Agency

Historic statusNot eligible for the National Register of Historic Places

Work proposedReplacement because of substandard load-carrying capacity or roadway geometry

Estimated improvement cost$1.4 million

NavigationNot applicable (no waterway)

Frequently asked questions

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

It was built in 1964, making it 61 years old in 2025.

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

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in February 2024.

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

About 75 vehicles per day (2022 count), of which roughly 22% are trucks.

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

The structure is 117 ft (35.7 m) long with a longest span of 45 ft (13.7 m) and a deck 29 ft wide.

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

It is owned by the State Highway Agency.