US Bridges

County RD 227 over Black CR

Fair

Shelby County, Missouri · S 10 T 58 N R 11 W · Structure no. 32914

Built
2010
15 years old
Condition
Fair
inspected March 2024
Type
Slab
Concrete
Length
92 ft
3 main spans
Daily traffic
45
2024 count
Owner
County
County Highway Agency

About this bridge

County RD 227 over Black CR is a concrete slab carrying County RD 227 over Black CR in Shelby County, Missouri. It was built in 2010, so it is 15 years old, younger 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 45 vehicles a day, roughly 10% of them trucks, projected to reach 56 by 2044. The structure is 92 ft (28.1 m) long and 26 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesCounty RD 227
CrossesBlack CR
LocationS 10 T 58 N R 11 W
RouteCounty Highway 171
Coordinates39.84683, -92.10803
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure9 ExcellentNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckOther
Main spans3
Design loadHS 20
Structure length92 ft (28.1 m)
Longest span31 ft (9.4 m)
Deck width26 ft (7.8 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic45 (2024)
Projected traffic56 by 2044
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 227 over Black CR built?

It was built in 2010, making it 15 years old in 2025.

What condition is County RD 227 over Black 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 March 2024.

How much traffic does County RD 227 over Black CR carry?

About 45 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is County RD 227 over Black CR?

The structure is 92 ft (28.1 m) long with a longest span of 31 ft (9.4 m) and a deck 26 ft wide.

Who owns County RD 227 over Black CR?

It is owned by the County Highway Agency.