US Bridges

K-146 HWY over Big Walnut Creek Drg

Good

Crawford County, Kansas · 5.23 MI E Neosho Coln · Structure no. 999914600190601

Built
1994
31 years old
Condition
Good
inspected March 2024
Type
Culvert
Concrete
Length
25 ft
2 main spans
Daily traffic
400
2023 count
Owner
State
State Highway Agency

About this bridge

K-146 HWY over Big Walnut Creek Drg is a concrete culvert carrying K-146 HWY over Big Walnut Creek Drg in Crawford County, Kansas. It was built in 1994, so it is 31 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.

It carries about 400 vehicles a day, roughly 14% of them trucks, projected to reach 408 by 2044. The structure is 25 ft (7.5 m) long and 40 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesK-146 HWY
CrossesBig Walnut Creek Drg
Location5.23 MI E Neosho Coln
RouteState Highway 146
StateKansas
Coordinates37.60167, -94.99222
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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating89 US tons
Inventory rating53 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length25 ft (7.5 m)
Longest span12 ft (3.7 m)
Deck width40 ft (12.2 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic400 (2023)
Projected traffic408 by 2044
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 K-146 HWY over Big Walnut Creek Drg built?

It was built in 1994, making it 31 years old in 2025.

What condition is K-146 HWY over Big Walnut Creek Drg 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 March 2024.

How much traffic does K-146 HWY over Big Walnut Creek Drg carry?

About 400 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is K-146 HWY over Big Walnut Creek Drg?

The structure is 25 ft (7.5 m) long with a longest span of 12 ft (3.7 m) and a deck 40 ft wide.

Who owns K-146 HWY over Big Walnut Creek Drg?

It is owned by the State Highway Agency.