US Bridges

County RD 5680 over Sinking CR

Good

Dent County, Missouri · S 30 T 32 N R 3 W · Structure no. 34748

Built
2014
11 years old
Condition
Good
inspected February 2025
Type
Slab
Concrete
Length
80 ft
2 main spans
Daily traffic
30
2023 count
Owner
County
County Highway Agency

About this bridge

County RD 5680 over Sinking CR is a concrete slab carrying County RD 5680 over Sinking CR in Dent County, Missouri. It was built in 2014, so it is 11 years old, younger than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 30 vehicles a day, roughly 10% of them trucks, projected to reach 36 by 2043. The structure is 80 ft (24.4 m) long and 23 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesCounty RD 5680
CrossesSinking CR
LocationS 30 T 32 N R 3 W
RouteCounty Highway 102
CountyDent County
StateMissouri
Coordinates37.44167, -91.31194
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
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 evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating97.2 US tons
Inventory rating57.5 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans2
Design loadHS 20 + Mod
Structure length80 ft (24.4 m)
Longest span40 ft (12.2 m)
Deck width23 ft (7 m)
Roadway width22 ft (6.7 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 closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was County RD 5680 over Sinking CR built?

It was built in 2014, making it 11 years old in 2025.

What condition is County RD 5680 over Sinking CR in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in February 2025.

How much traffic does County RD 5680 over Sinking CR carry?

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

How long is County RD 5680 over Sinking CR?

The structure is 80 ft (24.4 m) long with a longest span of 40 ft (12.2 m) and a deck 23 ft wide.

Who owns County RD 5680 over Sinking CR?

It is owned by the County Highway Agency.