US Bridges

N2770 over Creek

FairPosted for load

Grant County, Oklahoma · 2W 1.3S of Manchester · Structure no. 248320000000000

Built
1996
29 years old
Condition
Fair
inspected March 2023
Type
Other
Steel
Length
28 ft
1 main span
Daily traffic
24
2022 count
Owner
County
County Highway Agency

About this bridge

N2770 over Creek is a steel other carrying N2770 over Creek in Grant County, Oklahoma. It was built in 1996, so it is 29 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 24 vehicles a day, roughly 10% of them trucks, projected to reach 38 by 2042. The structure is 28 ft (8.5 m) long and 21 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesN2770
CrossesCreek
Location2W 1.3S of Manchester
RouteCounty Highway N2770
CountyGrant County
StateOklahoma
Coordinates36.97558, -98.07524
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating11 US tons
Inventory rating6 US tons

Structure

Structure typeOther
MaterialSteel
DeckSteel plate
Main spans1
Design loadUnknown
Structure length28 ft (8.5 m)
Longest span27 ft (8.2 m)
Deck width21 ft (6.3 m)
Roadway width20 ft (6.2 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$256,000
NavigationNo navigation control on waterway

Frequently asked questions

When was N2770 over Creek built?

It was built in 1996, making it 29 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 March 2023.

How much traffic does N2770 over Creek carry?

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

How long is N2770 over Creek?

The structure is 28 ft (8.5 m) long with a longest span of 27 ft (8.2 m) and a deck 21 ft wide.

Who owns N2770 over Creek?

It is owned by the County Highway Agency.