US Bridges

343rd Street over Trib. Marais Des Cygnes

Fair

Miami County, Kansas · 0.7E 0.5N of Osawatomie · Structure no. 000611079805060

Built
2000
25 years old
Condition
Fair
inspected July 2023
Type
Culvert
Concrete
Length
49 ft
4 main spans
Daily traffic
557
2011 count
Owner
County
County Highway Agency

About this bridge

343rd Street over Trib. Marais Des Cygnes is a concrete culvert carrying 343rd Street over Trib. Marais Des Cygnes in Miami County, Kansas. It was built in 2000, so it is 25 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 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 557 vehicles a day, roughly 10% of them trucks, projected to reach 564 by 2043. The structure is 49 ft (15 m) long and 34 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
Carries343rd Street
CrossesTrib. Marais Des Cygnes
Location0.7E 0.5N of Osawatomie
RouteCounty Highway 0
CountyMiami County
StateKansas
Coordinates38.50543, -94.9216
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 inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating89.9 US tons
Inventory rating53.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length49 ft (15 m)
Longest span11 ft (3.5 m)
Deck width34 ft (10.4 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic557 (2011)
Projected traffic564 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$51,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 343rd Street over Trib. Marais Des Cygnes built?

It was built in 2000, making it 25 years old in 2025.

What condition is 343rd Street over Trib. Marais Des Cygnes 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 July 2023.

How much traffic does 343rd Street over Trib. Marais Des Cygnes carry?

About 557 vehicles per day (2011 count), of which roughly 10% are trucks.

How long is 343rd Street over Trib. Marais Des Cygnes?

The structure is 49 ft (15 m) long with a longest span of 11 ft (3.5 m) and a deck 34 ft wide.

Who owns 343rd Street over Trib. Marais Des Cygnes?

It is owned by the County Highway Agency.