US Bridges

230th St. over Walnut Creek

Good

Brown County, Kansas · 0.5S 4.8W of Hiawatha · Structure no. 000071001203220

Built
1996
29 years old
Condition
Good
inspected January 2024
Type
Slab
Concrete Continuous
Length
122 ft
3 main spans
Daily traffic
40
2016 count
Owner
County
County Highway Agency

About this bridge

230th St. over Walnut Creek is a concrete continuous slab carrying 230th St. over Walnut Creek in Brown County, Kansas. It was built in 1996, so it is 29 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 40 vehicles a day, projected to reach 44 by 2044. The structure is 122 ft (37.2 m) long and 26 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
Carries230th St.
CrossesWalnut Creek
Location0.5S 4.8W of Hiawatha
RouteCounty Highway 0
CountyBrown County
StateKansas
Coordinates39.84122, -95.63548
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length122 ft (37.2 m)
Longest span48 ft (14.6 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic40 (2016)
Projected traffic44 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$95,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 230th St. over Walnut Creek built?

It was built in 1996, making it 29 years old in 2025.

What condition is 230th St. over Walnut Creek 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 2024.

How much traffic does 230th St. over Walnut Creek carry?

About 40 vehicles per day (2016 count).

How long is 230th St. over Walnut Creek?

The structure is 122 ft (37.2 m) long with a longest span of 48 ft (14.6 m) and a deck 26 ft wide.

Who owns 230th St. over Walnut Creek?

It is owned by the County Highway Agency.