US Bridges

D4560 over Creek

Good

Delaware County, Oklahoma · 6 NE of Leach · Structure no. 314080000000000

Built
2014
11 years old
Condition
Good
inspected January 2023
Type
Culvert
Concrete
Length
56 ft
3 main spans
Daily traffic
100
2022 count
Owner
County
County Highway Agency

About this bridge

D4560 over Creek is a concrete culvert carrying D4560 over Creek in Delaware County, Oklahoma. It was built in 2014, so it is 11 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 100 vehicles a day, roughly 10% of them trucks, projected to reach 160 by 2042. The structure is 56 ft (17.1 m) long. If it were closed, the detour would be 8.1 mi (13 km).

CarriesD4560
CrossesCreek
Location6 NE of Leach
RouteCounty Highway D4560
Coordinates36.27972, -94.89361
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 inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length56 ft (17.1 m)
Longest span18 ft (5.5 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 closed8.1 mi (13 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$225,000
NavigationNo navigation control on waterway

Frequently asked questions

When was D4560 over Creek built?

It was built in 2014, making it 11 years old in 2025.

What condition is D4560 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 January 2023.

How much traffic does D4560 over Creek carry?

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

How long is D4560 over Creek?

The structure is 56 ft (17.1 m) long with a longest span of 18 ft (5.5 m).

Who owns D4560 over Creek?

It is owned by the County Highway Agency.