US Bridges

I-40 over NS-181/HEXT Rd. under

Good

Beckham County, Oklahoma · 14.3 MI E Texas St. Line · Structure no. 182910000000000

Built
1972
53 years old
Condition
Good
inspected March 2023
Type
Slab
Concrete Continuous
Length
131 ft
3 main spans
Daily traffic
5,850
2022 count
Owner
State
State Highway Agency

About this bridge

I-40 over NS-181/HEXT Rd. under is a concrete continuous slab carrying I-40 over NS-181/HEXT Rd. under in Beckham County, Oklahoma. It was built in 1972, so it is 53 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 5,850 vehicles a day, roughly 53% of them trucks, projected to reach 9,360 by 2042. The structure is 131 ft (39.9 m) long and 40 ft wide.

Location

Open in Google Maps
CarriesI-40
CrossesNS-181/HEXT Rd. under
Location14.3 MI E Texas St. Line
RouteInterstate 40
CountyBeckham County
StateOklahoma
Coordinates35.24487, -99.75313
Functional classRural Principal Arterial - Interstate

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.4 US tons
Inventory rating37.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length131 ft (39.9 m)
Longest span57 ft (17.4 m)
Deck width40 ft (12.2 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,850 (2022)
Projected traffic9,360 by 2042
Trucks53%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.6 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-40 over NS-181/HEXT Rd. under built?

It was built in 1972, making it 53 years old in 2025.

What condition is I-40 over NS-181/HEXT Rd. 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 March 2023.

How much traffic does I-40 over NS-181/HEXT Rd. under carry?

About 5,850 vehicles per day (2022 count), of which roughly 53% are trucks.

How long is I-40 over NS-181/HEXT Rd. under?

The structure is 131 ft (39.9 m) long with a longest span of 57 ft (17.4 m) and a deck 40 ft wide.

Who owns I-40 over NS-181/HEXT Rd. under?

It is owned by the State Highway Agency.