US Bridges

Little RD over Rocky Br

Good

Cass County, Missouri · S 13 T 44 N R 30 W · Structure no. 34980

Built
2012
13 years old
Condition
Good
inspected April 2023
Type
Culvert
Aluminum, Wrought Iron, or Cast Iron
Length
28 ft
1 main span
Daily traffic
100
2024 count
Owner
County
County Highway Agency

About this bridge

Little RD over Rocky Br is a aluminum, wrought iron, or cast iron culvert carrying Little RD over Rocky Br in Cass County, Missouri. It was built in 2012, so it is 13 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 100 vehicles a day, roughly 10% of them trucks, projected to reach 160 by 2044. The structure is 28 ft (8.4 m) long. If it were closed, the detour would be 3.1 mi (5 km).

CarriesLittle RD
CrossesRocky Br
LocationS 13 T 44 N R 30 W
RouteCounty Highway 467
Coordinates38.60756, -94.17328
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 typeCulvert
MaterialAluminum, Wrought Iron, or Cast Iron
DeckNot applicable
Main spans1
Design loadHS 20
Structure length28 ft (8.4 m)
Longest span28 ft (8.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2024)
Projected traffic160 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Little RD over Rocky Br built?

It was built in 2012, making it 13 years old in 2025.

What condition is Little RD over Rocky 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 April 2023.

How much traffic does Little RD over Rocky Br carry?

About 100 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Little RD over Rocky Br?

The structure is 28 ft (8.4 m) long with a longest span of 28 ft (8.4 m).

Who owns Little RD over Rocky Br?

It is owned by the County Highway Agency.