US Bridges

LN CO over South Fork Walnut Creek

Fair

Ness County, Kansas · 1.6S K-96 on W. CO Line · Structure no. 000680505005145

Built
1996
29 years old
Condition
Fair
inspected December 2024
Type
Slab
Concrete Continuous
Length
103 ft
3 main spans
Daily traffic
30
2018 count
Owner
County
County Highway Agency

About this bridge

LN CO over South Fork Walnut Creek is a concrete continuous slab carrying LN CO over South Fork Walnut Creek in Ness 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 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.

It carries about 30 vehicles a day, roughly 5% of them trucks, projected to reach 40 by 2041. The structure is 103 ft (31.4 m) long and 28 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesLN CO
CrossesSouth Fork Walnut Creek
Location1.6S K-96 on W. CO Line
RouteCounty Highway 0
StateKansas
Coordinates38.44442, -100.2465
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.1 US tons
Inventory rating37.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length103 ft (31.4 m)
Longest span40 ft (12.1 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic30 (2018)
Projected traffic40 by 2041
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 LN CO over South Fork Walnut Creek built?

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

What condition is LN CO over South Fork Walnut Creek 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 December 2024.

How much traffic does LN CO over South Fork Walnut Creek carry?

About 30 vehicles per day (2018 count), of which roughly 5% are trucks.

How long is LN CO over South Fork Walnut Creek?

The structure is 103 ft (31.4 m) long with a longest span of 40 ft (12.1 m) and a deck 28 ft wide.

Who owns LN CO over South Fork Walnut Creek?

It is owned by the County Highway Agency.