US Bridges

N4250 over Kiamichi River

GoodPosted for load

Pushmataha County, Oklahoma · 1.8E 1N of Stanley · Structure no. 304400000000000

Built
2013
12 years old
Condition
Good
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
204 ft
3 main spans
Daily traffic
24
2022 count
Owner
County
County Highway Agency

About this bridge

N4250 over Kiamichi River is a steel stringer/multi-beam or girder carrying N4250 over Kiamichi River in Pushmataha County, Oklahoma. It was built in 2013, so it is 12 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. Its operating status is: posted for load restriction.

It carries about 24 vehicles a day, roughly 10% of them trucks, projected to reach 38 by 2042. The structure is 204 ft (62.3 m) long and 28 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesN4250
CrossesKiamichi River
Location1.8E 1N of Stanley
RouteCounty Highway N4250
Coordinates34.53917, -95.4625
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37.1 US tons
Inventory rating22.3 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length204 ft (62.3 m)
Longest span100 ft (30.5 m)
Deck width28 ft (8.6 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24 (2022)
Projected traffic38 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 N4250 over Kiamichi River built?

It was built in 2013, making it 12 years old in 2025.

What condition is N4250 over Kiamichi River 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 2024.

How much traffic does N4250 over Kiamichi River carry?

About 24 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is N4250 over Kiamichi River?

The structure is 204 ft (62.3 m) long with a longest span of 100 ft (30.5 m) and a deck 28 ft wide.

Who owns N4250 over Kiamichi River?

It is owned by the County Highway Agency.