US Bridges

I-40 EB over North Fork of Red River

Fair

Beckham County, Oklahoma · 2.0 Mi. E. of US283 · Structure no. 179630000000000

Built
1970
55 years old
Condition
Fair
inspected January 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
1,307 ft
12 main spans
Daily traffic
6,500
2022 count
Owner
State
State Highway Agency

About this bridge

I-40 EB over North Fork of Red River is a steel continuous stringer/multi-beam or girder carrying I-40 EB over North Fork of Red River 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 5 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 1,307 ft (398.4 m) long and 40 ft wide.

Location

Open in Google Maps
CarriesI-40 EB
CrossesNorth Fork of Red River
Location2.0 Mi. E. of US283
RouteInterstate 40
CountyBeckham County
StateOklahoma
Coordinates35.28285, -99.62253
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
Deck8 Very GoodNo problems noted.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.4 US tons
Inventory rating29.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans12 (+2 approach)
Design loadHS 20
Structure length1,307 ft (398.4 m)
Longest span100 ft (30.5 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
CrossesWaterway
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$7.4 million
NavigationNo navigation control on waterway

Frequently asked questions

When was I-40 EB over North Fork of Red River built?

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

What condition is I-40 EB over North Fork of Red River 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 January 2023.

How much traffic does I-40 EB over North Fork of Red River carry?

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

How long is I-40 EB over North Fork of Red River?

The structure is 1,307 ft (398.4 m) long with a longest span of 100 ft (30.5 m) and a deck 40 ft wide.

Who owns I-40 EB over North Fork of Red River?

It is owned by the State Highway Agency.