US Bridges

NE 20 Ave over Trib. S. Fk. Ninnescah

GoodPosted for load

Pratt County, Kansas · 0.4S 1.6E of Iuka · Structure no. 000760671006127

Built
1984
41 years old
Condition
Good
inspected November 2024
Type
Culvert
Concrete
Length
25 ft
3 main spans
Daily traffic
30
2021 count
Owner
County
County Highway Agency

About this bridge

NE 20 Ave over Trib. S. Fk. Ninnescah is a concrete culvert carrying NE 20 Ave over Trib. S. Fk. Ninnescah in Pratt County, Kansas. It was built in 1984, so it is 41 years old, younger than the Kansas average of 52.8 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. Its operating status is: posted for load restriction.

It carries about 30 vehicles a day, roughly 5% of them trucks, projected to reach 35 by 2046. The structure is 25 ft (7.7 m) long and 32 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesNE 20 Ave
CrossesTrib. S. Fk. Ninnescah
Location0.4S 1.6E of Iuka
RouteCounty Highway 0
CountyPratt County
StateKansas
Coordinates37.72058, -98.7027
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating31.1 US tons
Inventory rating18.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadH 20
Structure length25 ft (7.7 m)
Longest span8 ft (2.4 m)
Deck width32 ft (9.7 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic30 (2021)
Projected traffic35 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 statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was NE 20 Ave over Trib. S. Fk. Ninnescah built?

It was built in 1984, making it 41 years old in 2025.

What condition is NE 20 Ave over Trib. S. Fk. Ninnescah 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 November 2024.

How much traffic does NE 20 Ave over Trib. S. Fk. Ninnescah carry?

About 30 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is NE 20 Ave 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 32 ft wide.

Who owns NE 20 Ave over Trib. S. Fk. Ninnescah?

It is owned by the County Highway Agency.