US Bridges

Mo 15 S over Black CR

Good

Shelby County, Missouri · S 29 T 58 N R 10 W · Structure no. 35252

Built
2016
9 years old
Condition
Good
inspected September 2023
Type
Tee Beam
Prestressed Concrete Continuous
Length
300 ft
3 main spans
Daily traffic
1,834
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 15 S over Black CR is a prestressed concrete continuous tee beam carrying Mo 15 S over Black CR in Shelby County, Missouri. It was built in 2016, so it is 9 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 1,834 vehicles a day, roughly 14% of them trucks, projected to reach 2,843 by 2044. The structure is 300 ft (91.3 m) long and 35 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesMo 15 S
CrossesBlack CR
LocationS 29 T 58 N R 10 W
RouteState Highway 15
Coordinates39.79348, -92.04159
Functional classRural Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure9 ExcellentNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 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 adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69.4 US tons
Inventory rating41.7 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length300 ft (91.3 m)
Longest span110 ft (33.5 m)
Deck width35 ft (10.6 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,834 (2024)
Projected traffic2,843 by 2044
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Mo 15 S over Black CR built?

It was built in 2016, making it 9 years old in 2025.

What condition is Mo 15 S over Black 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 September 2023.

How much traffic does Mo 15 S over Black CR carry?

About 1,834 vehicles per day (2024 count), of which roughly 14% are trucks.

How long is Mo 15 S over Black CR?

The structure is 300 ft (91.3 m) long with a longest span of 110 ft (33.5 m) and a deck 35 ft wide.

Who owns Mo 15 S over Black CR?

It is owned by the State Highway Agency.