US Bridges

N4780 over Creek

Good

Le Flore County, Oklahoma · 4.0 E; 1.5 S Heavener · Structure no. 268310000000000

Built
2006
19 years old
Condition
Good
inspected March 2023
Type
Culvert
Concrete
Length
57 ft
4 main spans
Daily traffic
100
2022 count
Owner
County
County Highway Agency

About this bridge

N4780 over Creek is a concrete culvert carrying N4780 over Creek in Le Flore County, Oklahoma. It was built in 2006, so it is 19 years old, younger than the Oklahoma average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 100 vehicles a day, roughly 10% of them trucks, projected to reach 160 by 2042. The structure is 57 ft (17.5 m) long and 46 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesN4780
CrossesCreek
Location4.0 E; 1.5 S Heavener
RouteCounty Highway N4780
Coordinates34.87234, -94.52611
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating36 US tons
Inventory rating21.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadUnknown
Structure length57 ft (17.5 m)
Longest span13 ft (4 m)
Deck width46 ft (14 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2022)
Projected traffic160 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 N4780 over Creek built?

It was built in 2006, making it 19 years old in 2025.

What condition is N4780 over Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2023.

How much traffic does N4780 over Creek carry?

About 100 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is N4780 over Creek?

The structure is 57 ft (17.5 m) long with a longest span of 13 ft (4 m) and a deck 46 ft wide.

Who owns N4780 over Creek?

It is owned by the County Highway Agency.