US Bridges

Co. Rd. N4050 over I-40 EB under

Fair

McIntosh County, Oklahoma · 4.1 E Okmulgee C/L · Structure no. 159950000000000

Built
1964
61 years old
Condition
Fair
inspected October 2024
Type
Slab
Concrete Continuous
Length
109 ft
3 main spans
Daily traffic
75
2022 count
Owner
State
State Highway Agency

About this bridge

Co. Rd. N4050 over I-40 EB under is a concrete continuous slab carrying Co. Rd. N4050 over I-40 EB under in McIntosh County, Oklahoma. It was built in 1964, so it is 61 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 10% of them trucks, projected to reach 120 by 2042. The structure is 109 ft (33.2 m) long and 29 ft wide.

Location

Open in Google Maps
CarriesCo. Rd. N4050
CrossesI-40 EB under
Location4.1 E Okmulgee C/L
RouteCounty Highway N4050
CountyMcIntosh County
StateOklahoma
Coordinates35.43262, -95.8049
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating37 US tons
Inventory rating22 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length109 ft (33.2 m)
Longest span44 ft (13.4 m)
Deck width29 ft (8.8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2022)
Projected traffic120 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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. N4050 over I-40 EB under built?

It was built in 1964, making it 61 years old in 2025.

What condition is Co. Rd. N4050 over I-40 EB 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. N4050 over I-40 EB under carry?

About 75 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is Co. Rd. N4050 over I-40 EB under?

The structure is 109 ft (33.2 m) long with a longest span of 44 ft (13.4 m) and a deck 29 ft wide.

Who owns Co. Rd. N4050 over I-40 EB under?

It is owned by the State Highway Agency.