US Bridges

Debo RD over Unknown Branch

Good

Cooper County, Missouri · S 17 T 48 N R 16 W · Structure no. 28562

Built
1999
26 years old
Condition
Good
inspected December 2023
Type
Slab
Concrete Continuous
Length
31 ft
2 main spans
Daily traffic
25
2024 count
Owner
County
County Highway Agency

About this bridge

Debo RD over Unknown Branch is a concrete continuous slab carrying Debo RD over Unknown Branch in Cooper County, Missouri. It was built in 1999, so it is 26 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 25 vehicles a day, roughly 10% of them trucks, projected to reach 33 by 2044. The structure is 31 ft (9.4 m) long and 26 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesDebo RD
CrossesUnknown Branch
LocationS 17 T 48 N R 16 W
RouteCounty Highway 47
Coordinates38.92664, -92.70144
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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 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 evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadOther
Structure length31 ft (9.4 m)
Longest span15 ft (4.6 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2024)
Projected traffic33 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 Debo RD over Unknown Branch built?

It was built in 1999, making it 26 years old in 2025.

What condition is Debo RD over Unknown Branch 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 December 2023.

How much traffic does Debo RD over Unknown Branch carry?

About 25 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Debo RD over Unknown Branch?

The structure is 31 ft (9.4 m) long with a longest span of 15 ft (4.6 m) and a deck 26 ft wide.

Who owns Debo RD over Unknown Branch?

It is owned by the County Highway Agency.