US Bridges

N4750 over Nail Creek

Good

Le Flore County, Oklahoma · 2.4 W of Cameron · Structure no. 329340000000000

Built
2021
4 years old
Condition
Good
inspected February 2023
Type
Culvert
Steel
Length
32 ft
1 main span
Daily traffic
50
2022 count
Owner
County
County Highway Agency

About this bridge

N4750 over Nail Creek is a steel culvert carrying N4750 over Nail Creek in Le Flore County, Oklahoma. It was built in 2021, so it is 4 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 50 vehicles a day, roughly 10% of them trucks, projected to reach 80 by 2042. The structure is 32 ft (9.8 m) long and 22 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesN4750
CrossesNail Creek
Location2.4 W of Cameron
RouteCounty Highway N4750
Coordinates35.08583, -94.57556
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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionFebruary 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 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 typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadHL 93
Structure length32 ft (9.8 m)
Longest span8 ft (2.4 m)
Deck width22 ft (6.7 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic50 (2022)
Projected traffic80 by 2042
Trucks10%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was N4750 over Nail Creek built?

It was built in 2021, making it 4 years old in 2025.

What condition is N4750 over Nail 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 February 2023.

How much traffic does N4750 over Nail Creek carry?

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

How long is N4750 over Nail Creek?

The structure is 32 ft (9.8 m) long with a longest span of 8 ft (2.4 m) and a deck 22 ft wide.

Who owns N4750 over Nail Creek?

It is owned by the County Highway Agency.