US Bridges

K31 HWY over Marais Des Cygnes R Drn

Fair

Osage County, Kansas · 0.35 MI East of 75 JCT · Structure no. 999903100700661

Built
1936
89 years old, rebuilt 1957
Condition
Fair
inspected May 2024
Type
Culvert
Concrete
Length
20 ft
2 main spans
Daily traffic
462
2023 count
Owner
State
State Highway Agency

About this bridge

K31 HWY over Marais Des Cygnes R Drn is a concrete culvert carrying K31 HWY over Marais Des Cygnes R Drn in Osage County, Kansas. It was built in 1936 and reconstructed in 1957, so it is 89 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 462 vehicles a day, roughly 14% of them trucks, projected to reach 471 by 2044. The structure is 20 ft (6.2 m) long and 48 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

Location

Open in Google Maps
CarriesK31 HWY
CrossesMarais Des Cygnes R Drn
Location0.35 MI East of 75 JCT
RouteState Highway 31
CountyOsage County
StateKansas
Coordinates38.50694, -95.68972
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 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 adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating36 US tons
Inventory rating22 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length20 ft (6.2 m)
Longest span10 ft (3 m)
Deck width48 ft (14.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic462 (2023)
Projected traffic471 by 2044
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 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 Marais Des Cygnes R Drn built?

It was built in 1936, making it 89 years old in 2025. It was reconstructed in 1957.

What condition is K31 HWY over Marais Des Cygnes R Drn 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 May 2024.

How much traffic does K31 HWY over Marais Des Cygnes R Drn carry?

About 462 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is K31 HWY over Marais Des Cygnes R Drn?

The structure is 20 ft (6.2 m) long with a longest span of 10 ft (3 m) and a deck 48 ft wide.

Who owns K31 HWY over Marais Des Cygnes R Drn?

It is owned by the State Highway Agency.