US Bridges

K146 HWY over Rock Creek Drainage

Fair

Neosho County, Kansas · 7.10 MI E US59 · Structure no. 999914600670551

Built
1935
90 years old
Condition
Fair
inspected March 2024
Type
Culvert
Concrete
Length
26 ft
3 main spans
Daily traffic
395
2023 count
Owner
State
State Highway Agency

About this bridge

K146 HWY over Rock Creek Drainage is a concrete culvert carrying K146 HWY over Rock Creek Drainage in Neosho County, Kansas. It was built in 1935, so it is 90 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 26 ft (7.8 m) long and 32 ft wide.

Location

Open in Google Maps
CarriesK146 HWY
CrossesRock Creek Drainage
Location7.10 MI E US59
RouteState Highway 146
CountyNeosho County
StateKansas
Coordinates37.60167, -95.12389
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating33.2 US tons
Inventory rating20 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length26 ft (7.8 m)
Longest span8 ft (2.4 m)
Deck width32 ft (9.9 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 Rock Creek Drainage built?

It was built in 1935, making it 90 years old in 2025.

What condition is K146 HWY over Rock Creek Drainage 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 Rock Creek Drainage carry?

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

How long is K146 HWY over Rock Creek Drainage?

The structure is 26 ft (7.8 m) long with a longest span of 8 ft (2.4 m) and a deck 32 ft wide.

Who owns K146 HWY over Rock Creek Drainage?

It is owned by the State Highway Agency.