US Bridges

Oak Grove RD over Trib. Marais Des Cygnes

FairPosted for load

Miami County, Kansas · 8.4S 6.0W of Louisburg · Structure no. 000611095005063

Built
1935
90 years old
Condition
Fair
inspected July 2023
Type
Slab
Concrete
Length
23 ft
1 main span
Daily traffic
20
2011 count
Owner
County
County Highway Agency

About this bridge

Oak Grove RD over Trib. Marais Des Cygnes is a concrete slab carrying Oak Grove RD over Trib. Marais Des Cygnes in Miami County, Kansas. It was built in 1935, so it is 90 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 20 vehicles a day, projected to reach 22 by 2043. The structure is 23 ft (7 m) long and 20 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesOak Grove RD
CrossesTrib. Marais Des Cygnes
Location8.4S 6.0W of Louisburg
RouteCounty Highway 0
CountyMiami County
StateKansas
Coordinates38.50071, -94.78866
Functional classRural Local

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating17 US tons
Inventory rating11 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length23 ft (7 m)
Longest span21 ft (6.5 m)
Deck width20 ft (6.2 m)
Roadway width17 ft (5.3 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic20 (2011)
Projected traffic22 by 2043
Trucks0%
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$300,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Oak Grove RD over Trib. Marais Des Cygnes built?

It was built in 1935, making it 90 years old in 2025.

What condition is Oak Grove RD 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 Oak Grove RD over Trib. Marais Des Cygnes carry?

About 20 vehicles per day (2011 count).

How long is Oak Grove RD over Trib. Marais Des Cygnes?

The structure is 23 ft (7 m) long with a longest span of 21 ft (6.5 m) and a deck 20 ft wide.

Who owns Oak Grove RD over Trib. Marais Des Cygnes?

It is owned by the County Highway Agency.