US Bridges

K146 HWY over Slough Creek

Fair

Crawford County, Kansas · 0.08 MI E Neosho Coln · Structure no. 999914600190431

Built
1930
95 years old
Condition
Fair
inspected March 2024
Type
Slab
Concrete Continuous
Length
35 ft
3 main spans
Daily traffic
395
2023 count
Owner
State
State Highway Agency

About this bridge

K146 HWY over Slough Creek is a concrete continuous slab carrying K146 HWY over Slough Creek in Crawford County, Kansas. It was built in 1930, so it is 95 years old, older 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 395 vehicles a day, roughly 11% of them trucks, projected to reach 403 by 2044. The structure is 35 ft (10.7 m) long and 33 ft wide.

Location

Open in Google Maps
CarriesK146 HWY
CrossesSlough Creek
Location0.08 MI E Neosho Coln
RouteState Highway 146
CountyCrawford County
StateKansas
Coordinates37.60167, -95.08639
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating30.5 US tons
Inventory rating18.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length35 ft (10.7 m)
Longest span10 ft (3 m)
Deck width33 ft (10 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic395 (2023)
Projected traffic403 by 2044
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 K146 HWY over Slough Creek built?

It was built in 1930, making it 95 years old in 2025.

What condition is K146 HWY over Slough 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 March 2024.

How much traffic does K146 HWY over Slough Creek carry?

About 395 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is K146 HWY over Slough Creek?

The structure is 35 ft (10.7 m) long with a longest span of 10 ft (3 m) and a deck 33 ft wide.

Who owns K146 HWY over Slough Creek?

It is owned by the State Highway Agency.