US Bridges

US 412 E over Ragalin Slu

Fair

Dunklin County, Missouri · S 15 T 18 N R 9 E · Structure no. 994

Built
1963
62 years old
Condition
Fair
inspected November 2024
Type
Culvert
Concrete Continuous
Length
22 ft
2 main spans
Daily traffic
6,314
2024 count
Owner
State
State Highway Agency

About this bridge

US 412 E over Ragalin Slu is a concrete continuous culvert carrying US 412 E over Ragalin Slu in Dunklin County, Missouri. It was built in 1963, so it is 62 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 6,314 vehicles a day, roughly 10% of them trucks, projected to reach 11,050 by 2044. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 14.3 mi (23 km).

Location

Open in Google Maps
CarriesUS 412 E
CrossesRagalin Slu
LocationS 15 T 18 N R 9 E
RouteU.S. Route 412
CountyDunklin County
StateMissouri
Coordinates36.20368, -90.08286
Functional classRural Principal Arterial - Other

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.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.4 US tons
Inventory rating46.6 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 20
Structure length22 ft (6.7 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,314 (2024)
Projected traffic11,050 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 412 E over Ragalin Slu built?

It was built in 1963, making it 62 years old in 2025.

What condition is US 412 E over Ragalin Slu 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 November 2024.

How much traffic does US 412 E over Ragalin Slu carry?

About 6,314 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is US 412 E over Ragalin Slu?

The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3 m).

Who owns US 412 E over Ragalin Slu?

It is owned by the State Highway Agency.