US Bridges

Old Twelve RD over Br of Moniteau CR

Good

Cooper County, Missouri · S 4 T 45 N R 17 W · Structure no. 28986

Built
2000
25 years old
Condition
Good
inspected December 2023
Type
Slab
Concrete
Length
29 ft
2 main spans
Daily traffic
50
2024 count
Owner
County
County Highway Agency

About this bridge

Old Twelve RD over Br of Moniteau CR is a concrete slab carrying Old Twelve RD over Br of Moniteau CR in Cooper County, Missouri. It was built in 2000, so it is 25 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 50 vehicles a day, roughly 10% of them trucks, projected to reach 65 by 2044. The structure is 29 ft (8.8 m) long and 23 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesOld Twelve RD
CrossesBr of Moniteau CR
LocationS 4 T 45 N R 17 W
RouteCounty Highway 280
Coordinates38.69547, -92.79925
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating79.4 US tons
Inventory rating47.6 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length29 ft (8.8 m)
Longest span14 ft (4.3 m)
Deck width23 ft (7 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2024)
Projected traffic65 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 Old Twelve RD over Br of Moniteau CR built?

It was built in 2000, making it 25 years old in 2025.

What condition is Old Twelve RD over Br of Moniteau 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 December 2023.

How much traffic does Old Twelve RD over Br of Moniteau CR carry?

About 50 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Old Twelve RD over Br of Moniteau CR?

The structure is 29 ft (8.8 m) long with a longest span of 14 ft (4.3 m) and a deck 23 ft wide.

Who owns Old Twelve RD over Br of Moniteau CR?

It is owned by the County Highway Agency.