US Bridges

K-31 HWY over Rock Creek

Good

Coffey County, Kansas · 2.32 MI S Osage Coln · Structure no. 999903100160531

Built
1992
33 years old
Condition
Good
inspected February 2024
Type
Slab
Concrete Continuous
Length
122 ft
3 main spans
Daily traffic
1,272
2023 count
Owner
State
State Highway Agency

About this bridge

K-31 HWY over Rock Creek is a concrete continuous slab carrying K-31 HWY over Rock Creek in Coffey County, Kansas. It was built in 1992, so it is 33 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 1,272 vehicles a day, roughly 8% of them trucks, projected to reach 1,552 by 2044. The structure is 122 ft (37.3 m) long and 38 ft wide.

CarriesK-31 HWY
CrossesRock Creek
Location2.32 MI S Osage Coln
RouteState Highway 31
StateKansas
Coordinates38.40056, -95.6
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating82 US tons
Inventory rating49.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length122 ft (37.3 m)
Longest span48 ft (14.6 m)
Deck width38 ft (11.6 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,272 (2023)
Projected traffic1,552 by 2044
Trucks8%
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 K-31 HWY over Rock Creek built?

It was built in 1992, making it 33 years old in 2025.

What condition is K-31 HWY over Rock Creek 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 February 2024.

How much traffic does K-31 HWY over Rock Creek carry?

About 1,272 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is K-31 HWY over Rock Creek?

The structure is 122 ft (37.3 m) long with a longest span of 48 ft (14.6 m) and a deck 38 ft wide.

Who owns K-31 HWY over Rock Creek?

It is owned by the State Highway Agency.