US Bridges

County RD 516 over Unnamed Br

Good

Shelby County, Missouri · S 13 T 56 N R 12 W · Structure no. 36390

Built
2019
6 years old
Condition
Good
inspected March 2024
Type
Culvert
Aluminum, Wrought Iron, or Cast Iron
Length
20 ft
2 main spans
Daily traffic
30
2024 count
Owner
County
County Highway Agency

About this bridge

County RD 516 over Unnamed Br is a aluminum, wrought iron, or cast iron culvert carrying County RD 516 over Unnamed Br in Shelby County, Missouri. It was built in 2019, so it is 6 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 9 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 38 by 2044. The structure is 20 ft (6.2 m) long and 23 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCounty RD 516
CrossesUnnamed Br
LocationS 13 T 56 N R 12 W
RouteCounty Highway 379
Coordinates39.64844, -92.19944
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
Channel and channel protection7 GoodSome minor problems.
Culvert9 ExcellentNo problems noted.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialAluminum, Wrought Iron, or Cast Iron
DeckNot applicable
Main spans2
Design loadUnknown
Structure length20 ft (6.2 m)
Longest span9 ft (2.6 m)
Deck width23 ft (7 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2024)
Projected traffic38 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 516 over Unnamed Br built?

It was built in 2019, making it 6 years old in 2025.

What condition is County RD 516 over Unnamed Br 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 March 2024.

How much traffic does County RD 516 over Unnamed Br carry?

About 30 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is County RD 516 over Unnamed Br?

The structure is 20 ft (6.2 m) long with a longest span of 9 ft (2.6 m) and a deck 23 ft wide.

Who owns County RD 516 over Unnamed Br?

It is owned by the County Highway Agency.