IRR N4510 over Windy Creek

Good

Ottawa County, Oklahoma · 2W 4.5N of Narcissa · Structure no. 323050000000000

Built: 2023; 2 years old
Condition: Good; inspected September 2023
Type: Culvert; Concrete
Length: 81 ft; 2 main spans
Daily traffic: 100; 2022 count
Owner: County; County Highway Agency

About this bridge

IRR N4510 over Windy Creek is a concrete culvert carrying IRR N4510 over Windy Creek in Ottawa County, Oklahoma. It was built in 2023, so it is 2 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 81 ft (24.7 m) long and 32 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps

CarriesIRR N4510

CrossesWindy Creek

Location2W 4.5N of Narcissa

RouteCounty Highway N4510

CountyOttawa County

StateOklahoma

Coordinates36.85017, -94.96334

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.

Component	Rating	Meaning
Channel and channel protection	8 Very Good	No problems noted.
Culvert	7 Good	Some minor problems.

Last inspectionSeptember 2023

Inspection intervalevery 24 months

Operating statusOpen, no restriction

ScourFoundations stable; scour above top of footing

Structural evaluation7: Better than present minimum criteria

Deck geometry3: Basically intolerable, requiring high priority of corrective action

Waterway adequacy8: Equal to present desirable criteria

Approach roadway alignment8: Equal to present desirable criteria

Operating rating89.2 US tons

Inventory rating53.4 US tons

Structure

Structure typeCulvert

MaterialConcrete

DeckConcrete, precast panels

Main spans2

Design loadHS 20

Structure length81 ft (24.7 m)

Longest span38 ft (11.5 m)

Deck width32 ft (9.8 m)

Roadway width28 ft (8.5 m)

Vertical clearance over deck0 ft (0 m)

Traffic and service

Average daily traffic100 (2022)

Projected traffic160 by 2042

Trucks10%

Lanes on structure2

Traffic directionTwo-way traffic

CarriesHighway

CrossesWaterway

Detour if closed3.1 mi (5 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 IRR N4510 over Windy Creek built?

It was built in 2023, making it 2 years old in 2025.

What condition is IRR N4510 over Windy 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 IRR N4510 over Windy Creek carry?

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

How long is IRR N4510 over Windy Creek?

The structure is 81 ft (24.7 m) long with a longest span of 38 ft (11.5 m) and a deck 32 ft wide.

Who owns IRR N4510 over Windy Creek?

It is owned by the County Highway Agency.