US Bridges

SE Gray RD over S. Br. Little Walnut

GoodPosted for load

Butler County, Kansas · 8.0S 0.7E of Rosalia · Structure no. 000000000080450

Built
1969
56 years old
Condition
Good
inspected January 2025
Type
Culvert
Concrete
Length
24 ft
2 main spans
Daily traffic
275
2021 count
Owner
County
County Highway Agency

About this bridge

SE Gray RD over S. Br. Little Walnut is a concrete culvert carrying SE Gray RD over S. Br. Little Walnut in Butler County, Kansas. It was built in 1969, so it is 56 years old, older 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 275 vehicles a day, roughly 1% of them trucks, projected to reach 350 by 2045. The structure is 24 ft (7.3 m) long and 38 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesSE Gray RD
CrossesS. Br. Little Walnut
Location8.0S 0.7E of Rosalia
RouteCounty Highway 80
StateKansas
Coordinates37.69436, -96.6063
Functional classRural Major Collector

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 24 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 geometry8: Equal to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating24.9 US tons
Inventory rating14.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 15
Structure length24 ft (7.3 m)
Longest span11 ft (3.5 m)
Deck width38 ft (11.6 m)
Roadway width36 ft (11 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic275 (2021)
Projected traffic350 by 2045
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 Gray RD over S. Br. Little Walnut built?

It was built in 1969, making it 56 years old in 2025.

What condition is SE Gray RD over S. Br. Little Walnut 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 January 2025.

How much traffic does SE Gray RD over S. Br. Little Walnut carry?

About 275 vehicles per day (2021 count), of which roughly 1% are trucks.

How long is SE Gray RD over S. Br. Little Walnut?

The structure is 24 ft (7.3 m) long with a longest span of 11 ft (3.5 m) and a deck 38 ft wide.

Who owns SE Gray RD over S. Br. Little Walnut?

It is owned by the County Highway Agency.