US Bridges

K31 HWY over Rock Creek

Good

Coffey County, Kansas · .12 MI N Old US50 HWY · Structure no. 999903100160461

Built
1973
52 years old
Condition
Good
inspected February 2024
Type
Culvert
Concrete
Length
62 ft
3 main spans
Daily traffic
595
2023 count
Owner
State
State Highway Agency

About this bridge

K31 HWY over Rock Creek is a concrete culvert carrying K31 HWY over Rock Creek in Coffey County, Kansas. It was built in 1973, so it is 52 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 595 vehicles a day, roughly 12% of them trucks, projected to reach 726 by 2044. The structure is 62 ft (18.8 m) long and 46 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesK31 HWY
CrossesRock Creek
Location.12 MI N Old US50 HWY
RouteState Highway 31
CountyCoffey County
StateKansas
Coordinates38.40694, -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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating32 US tons
Inventory rating19 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length62 ft (18.8 m)
Longest span20 ft (6.1 m)
Deck width46 ft (14 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic595 (2023)
Projected traffic726 by 2044
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 K31 HWY over Rock Creek built?

It was built in 1973, making it 52 years old in 2025.

What condition is K31 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 K31 HWY over Rock Creek carry?

About 595 vehicles per day (2023 count), of which roughly 12% are trucks.

How long is K31 HWY over Rock Creek?

The structure is 62 ft (18.8 m) long with a longest span of 20 ft (6.1 m) and a deck 46 ft wide.

Who owns K31 HWY over Rock Creek?

It is owned by the State Highway Agency.