US Bridges

N2660 over Willow Creek

Good

Blaine County, Oklahoma · 5E .5S of Hitchcock · Structure no. 319810000000000

Built
2018
7 years old
Condition
Good
inspected June 2023
Type
Culvert
Concrete
Length
42 ft
2 main spans
Daily traffic
30
2022 count
Owner
County
County Highway Agency

About this bridge

N2660 over Willow Creek is a concrete culvert carrying N2660 over Willow Creek in Blaine County, Oklahoma. It was built in 2018, so it is 7 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 30 vehicles a day, roughly 10% of them trucks, projected to reach 48 by 2042. The structure is 42 ft (12.8 m) long. If it were closed, the detour would be 3.7 mi (6 km).

CarriesN2660
CrossesWillow Creek
Location5E .5S of Hitchcock
RouteCounty Highway N2660
Coordinates35.96278, -98.26361
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 inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable 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 loadHL 93
Structure length42 ft (12.8 m)
Longest span20 ft (6.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2022)
Projected traffic48 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 proposedNone recorded
Estimated improvement cost$225,000
NavigationNo navigation control on waterway

Frequently asked questions

When was N2660 over Willow Creek built?

It was built in 2018, making it 7 years old in 2025.

What condition is N2660 over Willow 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 June 2023.

How much traffic does N2660 over Willow Creek carry?

About 30 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is N2660 over Willow Creek?

The structure is 42 ft (12.8 m) long with a longest span of 20 ft (6.1 m).

Who owns N2660 over Willow Creek?

It is owned by the County Highway Agency.