US Bridges

Cimarron Rd. over I-40 under

Fair

Canadian County, Oklahoma · 28.6 Mi. E. Caddo CO · Structure no. 168000000000000

Built
1966
59 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
243 ft
3 main spans
Daily traffic
200
2022 count
Owner
State
State Highway Agency

About this bridge

Cimarron Rd. over I-40 under is a steel continuous stringer/multi-beam or girder carrying Cimarron Rd. over I-40 under in Canadian County, Oklahoma. It was built in 1966, so it is 59 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 200 vehicles a day, roughly 5% of them trucks, projected to reach 320 by 2042. The structure is 243 ft (74 m) long and 30 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesCimarron Rd.
CrossesI-40 under
Location28.6 Mi. E. Caddo CO
RouteCity Street 0
CountyCanadian County
StateOklahoma
Coordinates35.50083, -97.81303
Functional classUrban 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.
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 alignment8: Equal to present desirable criteria
Operating rating49.1 US tons
Inventory rating29 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3 (+2 approach)
Design loadHS 20
Structure length243 ft (74 m)
Longest span59 ft (18 m)
Deck width30 ft (9.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2022)
Projected traffic320 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed6.2 mi (10 km)
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$1.9 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Cimarron Rd. over I-40 under built?

It was built in 1966, making it 59 years old in 2025.

What condition is Cimarron Rd. 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 March 2023.

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

About 200 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is Cimarron Rd. over I-40 under?

The structure is 243 ft (74 m) long with a longest span of 59 ft (18 m) and a deck 30 ft wide.

Who owns Cimarron Rd. over I-40 under?

It is owned by the State Highway Agency.