US Bridges

Rt O S over Wilby CR

Fair

Butler County, Missouri · S 32 T 26 N R 6 E · Structure no. 4546

Built
1921
104 years old
Condition
Fair
inspected February 2025
Type
Slab
Concrete
Length
23 ft
1 main span
Daily traffic
312
2024 count
Owner
State
State Highway Agency

About this bridge

Rt O S over Wilby CR is a concrete slab carrying Rt O S over Wilby CR in Butler County, Missouri. It was built in 1921, so it is 104 years old, older than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 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 312 vehicles a day, roughly 11% of them trucks, projected to reach 468 by 2044. The structure is 23 ft (7 m) long and 20 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

Location

Open in Google Maps
CarriesRt O S
CrossesWilby CR
LocationS 32 T 26 N R 6 E
RouteState Highway 0O
CountyButler County
StateMissouri
Coordinates36.86402, -90.43285
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 inspectionFebruary 2025
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 geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating23.8 US tons
Inventory rating13.9 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadOther
Structure length23 ft (7 m)
Longest span20 ft (6.1 m)
Deck width20 ft (6.2 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic312 (2024)
Projected traffic468 by 2044
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$335,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Rt O S over Wilby CR built?

It was built in 1921, making it 104 years old in 2025.

What condition is Rt O S over Wilby CR 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 February 2025.

How much traffic does Rt O S over Wilby CR carry?

About 312 vehicles per day (2024 count), of which roughly 11% are trucks.

How long is Rt O S over Wilby CR?

The structure is 23 ft (7 m) long with a longest span of 20 ft (6.1 m) and a deck 20 ft wide.

Who owns Rt O S over Wilby CR?

It is owned by the State Highway Agency.