US Bridges

K31 HWY over Rock Creek Drainage

Fair

Coffey County, Kansas · 2.21 M E-Person ST Wav · Structure no. 999903100160501

Built
1978
47 years old
Condition
Fair
inspected February 2024
Type
Culvert
Steel
Length
32 ft
4 main spans
Daily traffic
395
2023 count
Owner
State
State Highway Agency

About this bridge

K31 HWY over Rock Creek Drainage is a steel culvert carrying K31 HWY over Rock Creek Drainage in Coffey County, Kansas. It was built in 1978, so it is 47 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 5 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 34% of them trucks, projected to reach 482 by 2044. The structure is 32 ft (9.8 m) long and 32 ft wide.

Location

Open in Google Maps
CarriesK31 HWY
CrossesRock Creek Drainage
Location2.21 M E-Person ST Wav
RouteState Highway 31
CountyCoffey County
StateKansas
Coordinates38.39028, -95.55972
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.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating30 US tons
Inventory rating24 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length32 ft (9.8 m)
Longest span6 ft (1.8 m)
Deck width32 ft (9.8 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic395 (2023)
Projected traffic482 by 2044
Trucks34%
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 K31 HWY over Rock Creek Drainage built?

It was built in 1978, making it 47 years old in 2025.

What condition is K31 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 February 2024.

How much traffic does K31 HWY over Rock Creek Drainage carry?

About 395 vehicles per day (2023 count), of which roughly 34% are trucks.

How long is K31 HWY over Rock Creek Drainage?

The structure is 32 ft (9.8 m) long with a longest span of 6 ft (1.8 m) and a deck 32 ft wide.

Who owns K31 HWY over Rock Creek Drainage?

It is owned by the State Highway Agency.