US Bridges

NE 50 ST over Trib. S. Fk. Ninnescah

FairPosted for load

Pratt County, Kansas · 0.8S 3.3E of Iuka · Structure no. 000760673606140

Built
1935
90 years old
Condition
Fair
inspected November 2024
Type
Culvert
Concrete
Length
25 ft
3 main spans
Daily traffic
25
2021 count
Owner
County
County Highway Agency

About this bridge

NE 50 ST over Trib. S. Fk. Ninnescah is a concrete culvert carrying NE 50 ST over Trib. S. Fk. Ninnescah in Pratt County, Kansas. It was built in 1935, so it is 90 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 25 vehicles a day, roughly 5% of them trucks, projected to reach 30 by 2046. The structure is 25 ft (7.7 m) long and 27 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesNE 50 ST
CrossesTrib. S. Fk. Ninnescah
Location0.8S 3.3E of Iuka
RouteCounty Highway 0
CountyPratt County
StateKansas
Coordinates37.71842, -98.67155
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating27 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadUnknown
Structure length25 ft (7.7 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 traffic25 (2021)
Projected traffic30 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 NE 50 ST over Trib. S. Fk. Ninnescah built?

It was built in 1935, making it 90 years old in 2025.

What condition is NE 50 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 NE 50 ST over Trib. S. Fk. Ninnescah carry?

About 25 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is NE 50 ST over Trib. S. Fk. Ninnescah?

The structure is 25 ft (7.7 m) long with a longest span of 8 ft (2.4 m) and a deck 27 ft wide.

Who owns NE 50 ST over Trib. S. Fk. Ninnescah?

It is owned by the County Highway Agency.