US Bridges

N1810 over Turkey Creek

Good

Harmon County, Oklahoma · 5.9N 2.1E of Gould · Structure no. 276340000000000

Built
2007
18 years old
Condition
Good
inspected February 2024
Type
Culvert
Concrete
Length
31 ft
2 main spans
Daily traffic
50
2022 count
Owner
County
County Highway Agency

About this bridge

N1810 over Turkey Creek is a concrete culvert carrying N1810 over Turkey Creek in Harmon County, Oklahoma. It was built in 2007, so it is 18 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 50 vehicles a day, roughly 10% of them trucks, projected to reach 80 by 2042. The structure is 31 ft (9.4 m) long and 44 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesN1810
CrossesTurkey Creek
Location5.9N 2.1E of Gould
RouteCounty Highway N1810
CountyHarmon County
StateOklahoma
Coordinates34.75456, -99.73755
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.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length31 ft (9.4 m)
Longest span14 ft (4.4 m)
Deck width44 ft (13.4 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2022)
Projected traffic80 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 N1810 over Turkey Creek built?

It was built in 2007, making it 18 years old in 2025.

What condition is N1810 over Turkey 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 February 2024.

How much traffic does N1810 over Turkey Creek carry?

About 50 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is N1810 over Turkey Creek?

The structure is 31 ft (9.4 m) long with a longest span of 14 ft (4.4 m) and a deck 44 ft wide.

Who owns N1810 over Turkey Creek?

It is owned by the County Highway Agency.