US Bridges

N4660 over Pecan Creek

Fair

Le Flore County, Oklahoma · 3.0 W 1.0 N US271/59 · Structure no. 050880000000000

Built
1937
88 years old
Condition
Fair
inspected January 2023
Type
Slab
Concrete
Length
24 ft
2 main spans
Daily traffic
50
2022 count
Owner
County
County Highway Agency

About this bridge

N4660 over Pecan Creek is a concrete slab carrying N4660 over Pecan Creek in Le Flore County, Oklahoma. It was built in 1937, so it is 88 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 5 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 50 vehicles a day, roughly 10% of them trucks, projected to reach 80 by 2042. The structure is 24 ft (7.3 m) long and 23 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesN4660
CrossesPecan Creek
Location3.0 W 1.0 N US271/59
RouteCounty Highway N4660
Coordinates35.25241, -94.72581
Functional classRural Local

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.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating21.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadH 10
Structure length24 ft (7.3 m)
Longest span10 ft (3 m)
Deck width23 ft (7.1 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2022)
Projected traffic80 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$236,000
NavigationNo navigation control on waterway

Frequently asked questions

When was N4660 over Pecan Creek built?

It was built in 1937, making it 88 years old in 2025.

What condition is N4660 over Pecan Creek 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 January 2023.

How much traffic does N4660 over Pecan Creek carry?

About 50 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is N4660 over Pecan Creek?

The structure is 24 ft (7.3 m) long with a longest span of 10 ft (3 m) and a deck 23 ft wide.

Who owns N4660 over Pecan Creek?

It is owned by the County Highway Agency.