US Bridges

4622C/ E1143 over Eufaula Lake

FairPosted for load

McIntosh County, Oklahoma · 0.5 MI W of Porum Landing · Structure no. 170380000000000

Built
1967
58 years old, rebuilt 2013
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
454 ft
5 main spans
Daily traffic
400
2022 count
Owner
County
County Highway Agency

About this bridge

4622C/ E1143 over Eufaula Lake is a steel continuous stringer/multi-beam or girder carrying 4622C/ E1143 over Eufaula Lake in McIntosh County, Oklahoma. It was built in 1967 and reconstructed in 2013, so it is 58 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. Its operating status is: posted for load restriction.

It carries about 400 vehicles a day, roughly 15% of them trucks, projected to reach 640 by 2042. The structure is 454 ft (138.4 m) long and 34 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

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Carries4622C/ E1143
CrossesEufaula Lake
Location0.5 MI W of Porum Landing
RouteCounty Highway 4622C
CountyMcIntosh County
StateOklahoma
Coordinates35.35734, -95.39884
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41 US tons
Inventory rating25 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadH 20
Structure length454 ft (138.4 m)
Longest span100 ft (30.5 m)
Deck width34 ft (10.4 m)
Roadway width32 ft (9.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic400 (2022)
Projected traffic640 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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$1.1 million
NavigationNo navigation control on waterway

Frequently asked questions

When was 4622C/ E1143 over Eufaula Lake built?

It was built in 1967, making it 58 years old in 2025. It was reconstructed in 2013.

What condition is 4622C/ E1143 over Eufaula Lake 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 September 2023.

How much traffic does 4622C/ E1143 over Eufaula Lake carry?

About 400 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is 4622C/ E1143 over Eufaula Lake?

The structure is 454 ft (138.4 m) long with a longest span of 100 ft (30.5 m) and a deck 34 ft wide.

Who owns 4622C/ E1143 over Eufaula Lake?

It is owned by the County Highway Agency.