US Bridges

N2600 over West Clay Creek Trib.

FairPosted for load

Alfalfa County, Oklahoma · 2E .3S of Yewed · Structure no. 159700000000000

Built
1964
61 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
50 ft
2 main spans
Daily traffic
25
2022 count
Owner
County
County Highway Agency

About this bridge

N2600 over West Clay Creek Trib. is a steel continuous stringer/multi-beam or girder carrying N2600 over West Clay Creek Trib. in Alfalfa County, Oklahoma. It was built in 1964, so it is 61 years old, older 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. Its operating status is: posted for load restriction.

It carries about 25 vehicles a day, roughly 10% of them trucks, projected to reach 40 by 2042. The structure is 50 ft (15.2 m) long and 24 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesN2600
CrossesWest Clay Creek Trib.
Location2E .3S of Yewed
RouteCounty Highway N2600
CountyAlfalfa County
StateOklahoma
Coordinates36.67742, -98.37833
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating28 US tons
Inventory rating17 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length50 ft (15.2 m)
Longest span25 ft (7.6 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2022)
Projected traffic40 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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$350,000
NavigationNo navigation control on waterway

Frequently asked questions

When was N2600 over West Clay Creek Trib. built?

It was built in 1964, making it 61 years old in 2025.

What condition is N2600 over West Clay Creek Trib. 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 N2600 over West Clay Creek Trib. carry?

About 25 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is N2600 over West Clay Creek Trib.?

The structure is 50 ft (15.2 m) long with a longest span of 25 ft (7.6 m) and a deck 24 ft wide.

Who owns N2600 over West Clay Creek Trib.?

It is owned by the County Highway Agency.