US Bridges

N4250 over Shady Grove Creek

GoodPosted for load

McIntosh County, Oklahoma · 4. E .2 N of Checotah · Structure no. 230600000000000

Built
1997
28 years old
Condition
Good
inspected August 2024
Type
Culvert
Concrete
Length
45 ft
3 main spans
Daily traffic
100
2022 count
Owner
County
County Highway Agency

About this bridge

N4250 over Shady Grove Creek is a concrete culvert carrying N4250 over Shady Grove Creek in McIntosh County, Oklahoma. It was built in 1997, so it is 28 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 100 vehicles a day, roughly 10% of them trucks, projected to reach 160 by 2042. The structure is 45 ft (13.7 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesN4250
CrossesShady Grove Creek
Location4. E .2 N of Checotah
RouteCounty Highway N4250
Coordinates35.47364, -95.45132
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 12 months
Operating statusPosted for load 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
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37 US tons
Inventory rating22 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length45 ft (13.7 m)
Longest span17 ft (5.2 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$225,000
NavigationNo navigation control on waterway

Frequently asked questions

When was N4250 over Shady Grove Creek built?

It was built in 1997, making it 28 years old in 2025.

What condition is N4250 over Shady Grove 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 August 2024.

How much traffic does N4250 over Shady Grove Creek carry?

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

How long is N4250 over Shady Grove Creek?

The structure is 45 ft (13.7 m) long with a longest span of 17 ft (5.2 m).

Who owns N4250 over Shady Grove Creek?

It is owned by the County Highway Agency.