US Bridges

I-40 WB over U.S. 283 under

Fair

Beckham County, Oklahoma · 13.4 MI E S.H. 30 · Structure no. 179380000000000

Built
1970
55 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
292 ft
2 main spans
Daily traffic
6,500
2022 count
Owner
State
State Highway Agency

About this bridge

I-40 WB over U.S. 283 under is a steel continuous stringer/multi-beam or girder carrying I-40 WB over U.S. 283 under in Beckham County, Oklahoma. It was built in 1970, so it is 55 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 6,500 vehicles a day, roughly 53% of them trucks, projected to reach 10,400 by 2042. The structure is 292 ft (89 m) long and 40 ft wide.

Location

Open in Google Maps
CarriesI-40 WB
CrossesU.S. 283 under
Location13.4 MI E S.H. 30
RouteInterstate 40
CountyBeckham County
StateOklahoma
Coordinates35.26295, -99.64406
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating61 US tons
Inventory rating33 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 20
Structure length292 ft (89 m)
Longest span105 ft (32 m)
Deck width40 ft (12.2 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,500 (2022)
Projected traffic10,400 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$2.3 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-40 WB over U.S. 283 under built?

It was built in 1970, making it 55 years old in 2025.

What condition is I-40 WB over U.S. 283 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 March 2023.

How much traffic does I-40 WB over U.S. 283 under carry?

About 6,500 vehicles per day (2022 count), of which roughly 53% are trucks.

How long is I-40 WB over U.S. 283 under?

The structure is 292 ft (89 m) long with a longest span of 105 ft (32 m) and a deck 40 ft wide.

Who owns I-40 WB over U.S. 283 under?

It is owned by the State Highway Agency.