US Bridges

Rt K S over Flatt CR

Fair

Ripley County, Missouri · S 20 T 24 N R 3 E · Structure no. 7762

Built
1954
71 years old
Condition
Fair
inspected December 2023
Type
Culvert
Concrete Continuous
Length
41 ft
3 main spans
Daily traffic
583
2024 count
Owner
State
State Highway Agency

About this bridge

Rt K S over Flatt CR is a concrete continuous culvert carrying Rt K S over Flatt CR in Ripley County, Missouri. It was built in 1954, so it is 71 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 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 583 vehicles a day, roughly 8% of them trucks, projected to reach 816 by 2044. The structure is 41 ft (12.6 m) long and 22 ft wide. If it were closed, the detour would be 28 mi (45 km).

Location

Open in Google Maps
CarriesRt K S
CrossesFlatt CR
LocationS 20 T 24 N R 3 E
RouteState Highway 0K
CountyRipley County
StateMissouri
Coordinates36.71441, -90.77087
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 inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating47.6 US tons
Inventory rating28.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadH 10
Structure length41 ft (12.6 m)
Longest span12 ft (3.7 m)
Deck width22 ft (6.7 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic583 (2024)
Projected traffic816 by 2044
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed28 mi (45 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$306,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Rt K S over Flatt CR built?

It was built in 1954, making it 71 years old in 2025.

What condition is Rt K S over Flatt 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 December 2023.

How much traffic does Rt K S over Flatt CR carry?

About 583 vehicles per day (2024 count), of which roughly 8% are trucks.

How long is Rt K S over Flatt CR?

The structure is 41 ft (12.6 m) long with a longest span of 12 ft (3.7 m) and a deck 22 ft wide.

Who owns Rt K S over Flatt CR?

It is owned by the State Highway Agency.