US Bridges

I-40 Bus. Ramp over I-40 under

Fair

Canadian County, Oklahoma · 15.2 Mi. E. Caddo CO · Structure no. 153690000000000

Built
1961
64 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
218 ft
2 main spans
Daily traffic
1,900
2022 count
Owner
State
State Highway Agency

About this bridge

I-40 Bus. Ramp over I-40 under is a steel continuous stringer/multi-beam or girder carrying I-40 Bus. Ramp over I-40 under in Canadian County, Oklahoma. It was built in 1961, so it is 64 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 1,900 vehicles a day, roughly 15% of them trucks, projected to reach 3,040 by 2042. The structure is 218 ft (66.4 m) long and 26 ft wide.

Location

Open in Google Maps
CarriesI-40 Bus. Ramp
CrossesI-40 under
Location15.2 Mi. E. Caddo CO
RouteState Highway 40B
CountyCanadian County
StateOklahoma
Coordinates35.52933, -98.04413
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 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 alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 20
Structure length218 ft (66.4 m)
Longest span68 ft (20.7 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,900 (2022)
Projected traffic3,040 by 2042
Trucks15%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes

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$3.5 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-40 Bus. Ramp over I-40 under built?

It was built in 1961, making it 64 years old in 2025.

What condition is I-40 Bus. Ramp over I-40 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 November 2024.

How much traffic does I-40 Bus. Ramp over I-40 under carry?

About 1,900 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is I-40 Bus. Ramp over I-40 under?

The structure is 218 ft (66.4 m) long with a longest span of 68 ft (20.7 m) and a deck 26 ft wide.

Who owns I-40 Bus. Ramp over I-40 under?

It is owned by the State Highway Agency.