N2770 over Creek

Fair

Canadian County, Oklahoma · 3.E 2.8S of Calumet · Structure no. 200590000000000

Built: 1982; 43 years old
Condition: Fair; inspected October 2023
Type: Culvert; Concrete
Length: 33 ft; 3 main spans
Daily traffic: 100; 2022 count
Owner: County; County Highway Agency

About this bridge

N2770 over Creek is a concrete culvert carrying N2770 over Creek in Canadian County, Oklahoma. It was built in 1982, so it is 43 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.

It carries about 100 vehicles a day, roughly 10% of them trucks, projected to reach 160 by 2042. The structure is 33 ft (10.1 m) long and 30 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesN2770

CrossesCreek

Location3.E 2.8S of Calumet

RouteCounty Highway N2770

CountyCanadian County

StateOklahoma

Coordinates35.55286, -98.0654

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 inspectionOctober 2023

Inspection intervalevery 24 months

Operating statusOpen, no restriction

ScourFoundations stable; action required to protect exposed foundations

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 alignment6: Equal to present minimum criteria

Operating rating36 US tons

Inventory rating21.1 US tons

Structure

Structure typeCulvert

MaterialConcrete

DeckNot applicable

Main spans3

Design loadUnknown

Structure length33 ft (10.1 m)

Longest span10 ft (3 m)

Deck width30 ft (9 m)

Roadway width28 ft (8.5 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 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 N2770 over Creek built?

It was built in 1982, making it 43 years old in 2025.

What condition is N2770 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 October 2023.

How much traffic does N2770 over Creek carry?

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

How long is N2770 over Creek?

The structure is 33 ft (10.1 m) long with a longest span of 10 ft (3 m) and a deck 30 ft wide.

Who owns N2770 over Creek?

It is owned by the County Highway Agency.