US Bridges

County RD 5670 over Lit Sinking CR

Fair

Dent County, Missouri · S 32 T 32 N R 3 W · Structure no. 24865

Built
1968
57 years old
Condition
Fair
inspected February 2025
Type
Slab
Concrete Continuous
Length
28 ft
4 main spans
Daily traffic
30
2023 count
Owner
County
County Highway Agency

About this bridge

County RD 5670 over Lit Sinking CR is a concrete continuous slab carrying County RD 5670 over Lit Sinking CR in Dent County, Missouri. It was built in 1968, so it is 57 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 30 vehicles a day, roughly 10% of them trucks, projected to reach 36 by 2043. The structure is 28 ft (8.5 m) long and 27 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesCounty RD 5670
CrossesLit Sinking CR
LocationS 32 T 32 N R 3 W
RouteCounty Highway 567
CountyDent County
StateMissouri
Coordinates37.42029, -91.28725
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
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 within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.6 US tons
Inventory rating17.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadOther
Structure length28 ft (8.5 m)
Longest span6 ft (1.8 m)
Deck width27 ft (8.2 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2023)
Projected traffic36 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 County RD 5670 over Lit Sinking CR built?

It was built in 1968, making it 57 years old in 2025.

What condition is County RD 5670 over Lit Sinking 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 County RD 5670 over Lit Sinking CR carry?

About 30 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is County RD 5670 over Lit Sinking CR?

The structure is 28 ft (8.5 m) long with a longest span of 6 ft (1.8 m) and a deck 27 ft wide.

Who owns County RD 5670 over Lit Sinking CR?

It is owned by the County Highway Agency.