US Bridges

US 412 E over Pole Cat Slu

Fair

Dunklin County, Missouri · S 12 T 17 N R 8 E · Structure no. 996

Built
1966
59 years old, rebuilt 1989
Condition
Fair
inspected November 2024
Type
Slab
Concrete Continuous
Length
90 ft
3 main spans
Daily traffic
5,768
2024 count
Owner
State
State Highway Agency

About this bridge

US 412 E over Pole Cat Slu is a concrete continuous slab carrying US 412 E over Pole Cat Slu in Dunklin County, Missouri. It was built in 1966 and reconstructed in 1989, so it is 59 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 5,768 vehicles a day, roughly 16% of them trucks, projected to reach 10,094 by 2044. The structure is 90 ft (27.4 m) long and 35 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesUS 412 E
CrossesPole Cat Slu
LocationS 12 T 17 N R 8 E
RouteU.S. Route 412
Coordinates36.12046, -90.15848
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length90 ft (27.4 m)
Longest span33 ft (10.1 m)
Deck width35 ft (10.6 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,768 (2024)
Projected traffic10,094 by 2044
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Pole Cat Slu built?

It was built in 1966, making it 59 years old in 2025. It was reconstructed in 1989.

What condition is US 412 E over Pole Cat 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 Pole Cat Slu carry?

About 5,768 vehicles per day (2024 count), of which roughly 16% are trucks.

How long is US 412 E over Pole Cat Slu?

The structure is 90 ft (27.4 m) long with a longest span of 33 ft (10.1 m) and a deck 35 ft wide.

Who owns US 412 E over Pole Cat Slu?

It is owned by the State Highway Agency.