US Bridges

235th St. Rs 57 over Marmaton River

FairPosted for load

Bourbon County, Kansas · 1.5N 1.4E of Fort Scott · Structure no. 000000000060220

Built
1965
60 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
333 ft
3 main spans
Daily traffic
380
2006 count
Owner
County
County Highway Agency

About this bridge

235th St. Rs 57 over Marmaton River is a steel continuous stringer/multi-beam or girder carrying 235th St. Rs 57 over Marmaton River in Bourbon County, Kansas. It was built in 1965, so it is 60 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. Its operating status is: posted for load restriction.

It carries about 380 vehicles a day, roughly 11% of them trucks, projected to reach 380 by 2042. The structure is 333 ft (101.5 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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Carries235th St. Rs 57
CrossesMarmaton River
Location1.5N 1.4E of Fort Scott
RouteCounty Highway 57
CountyBourbon County
StateKansas
Coordinates37.86321, -94.67833
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
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 alignment6: Equal to present minimum criteria
Operating rating29 US tons
Inventory rating18 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length333 ft (101.5 m)
Longest span132 ft (40.2 m)
Deck width28 ft (8.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic380 (2006)
Projected traffic380 by 2042
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$793,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 235th St. Rs 57 over Marmaton River built?

It was built in 1965, making it 60 years old in 2025.

What condition is 235th St. Rs 57 over Marmaton River 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 235th St. Rs 57 over Marmaton River carry?

About 380 vehicles per day (2006 count), of which roughly 11% are trucks.

How long is 235th St. Rs 57 over Marmaton River?

The structure is 333 ft (101.5 m) long with a longest span of 132 ft (40.2 m) and a deck 28 ft wide.

Who owns 235th St. Rs 57 over Marmaton River?

It is owned by the County Highway Agency.