US Bridges

Co. Rd. N4210 over I-40 under

Fair

McIntosh County, Oklahoma · 1.2 E JCT US-69 · Structure no. 181080000000000

Built
1971
54 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
231 ft
2 main spans
Daily traffic
75
2022 count
Owner
State
State Highway Agency

About this bridge

Co. Rd. N4210 over I-40 under is a steel continuous stringer/multi-beam or girder carrying Co. Rd. N4210 over I-40 under in McIntosh County, Oklahoma. It was built in 1971, so it is 54 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 75 vehicles a day, roughly 15% of them trucks, projected to reach 120 by 2042. The structure is 231 ft (70.4 m) long and 34 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

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CarriesCo. Rd. N4210
CrossesI-40 under
Location1.2 E JCT US-69
RouteCounty Highway N4210
CountyMcIntosh County
StateOklahoma
Coordinates35.45736, -95.5225
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating70 US tons
Inventory rating42 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length231 ft (70.4 m)
Longest span113 ft (34.4 m)
Deck width34 ft (10.4 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2022)
Projected traffic120 by 2042
Trucks15%
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 Co. Rd. N4210 over I-40 under built?

It was built in 1971, making it 54 years old in 2025.

What condition is Co. Rd. N4210 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 October 2024.

How much traffic does Co. Rd. N4210 over I-40 under carry?

About 75 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is Co. Rd. N4210 over I-40 under?

The structure is 231 ft (70.4 m) long with a longest span of 113 ft (34.4 m) and a deck 34 ft wide.

Who owns Co. Rd. N4210 over I-40 under?

It is owned by the State Highway Agency.