US Bridges

SE 30th over Trib N.Br. L. Walnut Riv

GoodPosted for load

Butler County, Kansas · 0.4W 2.5S of Rosalia · Structure no. 000080897906060

Built
1980
45 years old
Condition
Good
inspected February 2025
Type
Culvert
Concrete
Length
20 ft
2 main spans
Daily traffic
30
2023 count
Owner
County
County Highway Agency

About this bridge

SE 30th over Trib N.Br. L. Walnut Riv is a concrete culvert carrying SE 30th over Trib N.Br. L. Walnut Riv in Butler County, Kansas. It was built in 1980, so it is 45 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 10% of them trucks, projected to reach 30 by 2045. The structure is 20 ft (6.2 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesSE 30th
CrossesTrib N.Br. L. Walnut Riv
Location0.4W 2.5S of Rosalia
RouteCounty Highway 0
CountyButler County
StateKansas
Coordinates37.78116, -96.62732
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 inspectionFebruary 2025
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 geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating37.3 US tons
Inventory rating22.3 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 20
Structure length20 ft (6.2 m)
Longest span10 ft (3 m)
Deck width28 ft (8.4 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic30 (2023)
Projected traffic30 by 2045
Trucks10%
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 SE 30th over Trib N.Br. L. Walnut Riv built?

It was built in 1980, making it 45 years old in 2025.

What condition is SE 30th over Trib N.Br. L. Walnut Riv 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 February 2025.

How much traffic does SE 30th over Trib N.Br. L. Walnut Riv carry?

About 30 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is SE 30th over Trib N.Br. L. Walnut Riv?

The structure is 20 ft (6.2 m) long with a longest span of 10 ft (3 m) and a deck 28 ft wide.

Who owns SE 30th over Trib N.Br. L. Walnut Riv?

It is owned by the County Highway Agency.