US Bridges

NW 10 ST over Trib. S. Fk. Ninnescah

FairPosted for load

Pratt County, Kansas · 2.0N 2.8E of Cullison · Structure no. 000760653806220

Built
1936
89 years old
Condition
Fair
inspected November 2024
Type
Culvert
Concrete
Length
35 ft
4 main spans
Daily traffic
50
2021 count
Owner
County
County Highway Agency

About this bridge

NW 10 ST over Trib. S. Fk. Ninnescah is a concrete culvert carrying NW 10 ST over Trib. S. Fk. Ninnescah in Pratt County, Kansas. It was built in 1936, so it is 89 years old, older than the Kansas average of 52.8 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 50 vehicles a day, roughly 5% of them trucks, projected to reach 60 by 2046. The structure is 35 ft (10.6 m) long and 27 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesNW 10 ST
CrossesTrib. S. Fk. Ninnescah
Location2.0N 2.8E of Cullison
RouteCounty Highway 0
CountyPratt County
StateKansas
Coordinates37.65985, -98.85319
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating23 US tons
Inventory rating23 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadUnknown
Structure length35 ft (10.6 m)
Longest span8 ft (2.4 m)
Deck width27 ft (8.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic50 (2021)
Projected traffic60 by 2046
Trucks5%
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 statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was NW 10 ST over Trib. S. Fk. Ninnescah built?

It was built in 1936, making it 89 years old in 2025.

What condition is NW 10 ST over Trib. S. Fk. Ninnescah 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 November 2024.

How much traffic does NW 10 ST over Trib. S. Fk. Ninnescah carry?

About 50 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is NW 10 ST over Trib. S. Fk. Ninnescah?

The structure is 35 ft (10.6 m) long with a longest span of 8 ft (2.4 m) and a deck 27 ft wide.

Who owns NW 10 ST over Trib. S. Fk. Ninnescah?

It is owned by the County Highway Agency.