N3060 over Deer Creek

Fair

Grant County, Oklahoma · .2N 2.1E .5N of Salt Fork · Structure no. 257810000000000

Built: 1950; 75 years old
Condition: Fair; inspected May 2023
Type: Culvert; Concrete
Length: 32 ft; 3 main spans
Daily traffic: 24; 2022 count
Owner: County; County Highway Agency

About this bridge

N3060 over Deer Creek is a concrete culvert carrying N3060 over Deer Creek in Grant County, Oklahoma. It was built in 1950, so it is 75 years old, older 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.

It carries about 24 vehicles a day, roughly 10% of them trucks, projected to reach 38 by 2042. The structure is 32 ft (9.7 m) long and 32 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesN3060

CrossesDeer Creek

Location.2N 2.1E .5N of Salt Fork

RouteCounty Highway N3060

CountyGrant County

StateOklahoma

Coordinates36.6445, -97.55264

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.

Component	Rating	Meaning
Channel and channel protection	5 Fair	All primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert	6 Satisfactory	Structural elements show some minor deterioration.

Last inspectionMay 2023

Inspection intervalevery 24 months

Operating statusOpen, no restriction

ScourFoundations stable; scour above top of footing

Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is

Deck geometry7: Better than present minimum criteria

Waterway adequacy7: Better than present minimum criteria

Approach roadway alignment8: Equal to present desirable criteria

Operating rating36 US tons

Inventory rating21.1 US tons

Structure

Structure typeCulvert

MaterialConcrete

DeckNot applicable

Main spans3

Design loadH 10

Structure length32 ft (9.7 m)

Longest span10 ft (3 m)

Deck width32 ft (9.9 m)

Roadway width30 ft (9.2 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24 (2022)

Projected traffic38 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 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 N3060 over Deer Creek built?

It was built in 1950, making it 75 years old in 2025.

What condition is N3060 over Deer 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 May 2023.

How much traffic does N3060 over Deer Creek carry?

About 24 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is N3060 over Deer Creek?

The structure is 32 ft (9.7 m) long with a longest span of 10 ft (3 m) and a deck 32 ft wide.

Who owns N3060 over Deer Creek?

It is owned by the County Highway Agency.