US Bridges

N4560 over Waterhole Creek

FairPosted for load

McCurtain County, Oklahoma · 2.0 S 1.0 E Iron Stob Crn · Structure no. 288070000000000

Built
2006
19 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
49 ft
1 main span
Daily traffic
80
2022 count
Owner
County
County Highway Agency

About this bridge

N4560 over Waterhole Creek is a steel stringer/multi-beam or girder carrying N4560 over Waterhole Creek in McCurtain County, Oklahoma. It was built in 2006, so it is 19 years old, younger than the Oklahoma average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 80 vehicles a day, roughly 10% of them trucks, projected to reach 128 by 2042. The structure is 49 ft (14.8 m) long and 16 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesN4560
CrossesWaterhole Creek
Location2.0 S 1.0 E Iron Stob Crn
RouteCounty Highway N4560
CountyMcCurtain County
StateOklahoma
Coordinates33.8669, -94.93084
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry8: Equal to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating10 US tons
Inventory rating6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckSteel plate
Main spans1
Design loadUnknown
Structure length49 ft (14.8 m)
Longest span43 ft (13.2 m)
Deck width16 ft (4.8 m)
Roadway width16 ft (4.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic80 (2022)
Projected traffic128 by 2042
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-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 N4560 over Waterhole Creek built?

It was built in 2006, making it 19 years old in 2025.

What condition is N4560 over Waterhole Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in April 2023.

How much traffic does N4560 over Waterhole Creek carry?

About 80 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is N4560 over Waterhole Creek?

The structure is 49 ft (14.8 m) long with a longest span of 43 ft (13.2 m) and a deck 16 ft wide.

Who owns N4560 over Waterhole Creek?

It is owned by the County Highway Agency.