N3680 over Creek

Fair

Creek County, Oklahoma · 1E 2.1S of Olive · Structure no. 123010000000000

Built: 1991; 34 years old
Condition: Fair; inspected June 2024
Type: Tee Beam; Prestressed Concrete
Length: 150 ft; 3 main spans
Daily traffic: 100; 2022 count
Owner: County; County Highway Agency

About this bridge

N3680 over Creek is a prestressed concrete tee beam carrying N3680 over Creek in Creek County, Oklahoma. It was built in 1991, so it is 34 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 5 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 100 vehicles a day, roughly 10% of them trucks, projected to reach 160 by 2042. The structure is 150 ft (45.7 m) long and 28 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

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CarriesN3680

CrossesCreek

Location1E 2.1S of Olive

RouteCounty Highway N3680

CountyCreek County

StateOklahoma

Coordinates36.0013, -96.45866

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
Deck	6 Satisfactory	Structural elements show some minor deterioration.
Superstructure	5 Fair	All primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure	7 Good	Some minor problems.
Channel and channel protection	6 Satisfactory	Structural elements show some minor deterioration.

Last inspectionJune 2024

Inspection intervalevery 24 months

Operating statusOpen, no restriction

ScourCountermeasures installed to correct a previously existing problem

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

Deck geometry6: Equal to present minimum criteria

Waterway adequacy9: Superior to present desirable criteria

Approach roadway alignment8: Equal to present desirable criteria

Operating rating70.7 US tons

Inventory rating36.2 US tons

Structure

Structure typeTee Beam

MaterialPrestressed Concrete

DeckConcrete, cast-in-place

Main spans3

Design loadHS 20

Structure length150 ft (45.7 m)

Longest span50 ft (15.2 m)

Deck width28 ft (8.5 m)

Roadway width26 ft (7.9 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 closed6.2 mi (10 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$612,000

NavigationNo navigation control on waterway

Frequently asked questions

When was N3680 over Creek built?

It was built in 1991, making it 34 years old in 2025.

What condition is N3680 over 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 June 2024.

How much traffic does N3680 over Creek carry?

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

How long is N3680 over Creek?

The structure is 150 ft (45.7 m) long with a longest span of 50 ft (15.2 m) and a deck 28 ft wide.

Who owns N3680 over Creek?

It is owned by the County Highway Agency.