US Bridges

N4260 over Shady Grove Creek

GoodPosted for load

McIntosh County, Oklahoma · 1.5S 1W of Shady Grove · Structure no. 270530000000000

Built
2004
21 years old
Condition
Good
inspected September 2023
Type
Culvert
Concrete
Length
43 ft
3 main spans
Daily traffic
100
2022 count
Owner
County
County Highway Agency

About this bridge

N4260 over Shady Grove Creek is a concrete culvert carrying N4260 over Shady Grove Creek in McIntosh County, Oklahoma. It was built in 2004, so it is 21 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 5% of them trucks, projected to reach 160 by 2042. The structure is 43 ft (13 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesN4260
CrossesShady Grove Creek
Location1.5S 1W of Shady Grove
RouteCounty Highway N4260
Coordinates35.47174, -95.43356
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50 US tons
Inventory rating30 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length43 ft (13 m)
Longest span13 ft (4 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
Trucks5%
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$225,000
NavigationNo navigation control on waterway

Frequently asked questions

When was N4260 over Shady Grove Creek built?

It was built in 2004, making it 21 years old in 2025.

What condition is N4260 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 September 2023.

How much traffic does N4260 over Shady Grove Creek carry?

About 100 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is N4260 over Shady Grove Creek?

The structure is 43 ft (13 m) long with a longest span of 13 ft (4 m).

Who owns N4260 over Shady Grove Creek?

It is owned by the County Highway Agency.