US Bridges

Cave RD over Br.Of Sni-A-Bar CR

FairPosted for load

Jackson County, Missouri · S 6 T 47 N R 29 W · Structure no. 21347

Built
1930
95 years old
Condition
Fair
inspected February 2023
Type
Culvert
Concrete
Length
70 ft
1 main span
Daily traffic
200
2024 count
Owner
County
County Highway Agency

About this bridge

Cave RD over Br.Of Sni-A-Bar CR is a concrete culvert carrying Cave RD over Br.Of Sni-A-Bar CR in Jackson County, Missouri. It was built in 1930, so it is 95 years old, older 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. Its operating status is: posted for load restriction.

It carries about 200 vehicles a day, roughly 2% of them trucks, projected to reach 300 by 2044. The structure is 70 ft (21.3 m) long and 42 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesCave RD
CrossesBr.Of Sni-A-Bar CR
LocationS 6 T 47 N R 29 W
RouteCounty Highway 302
CountyJackson County
StateMissouri
Coordinates38.90985, -94.15762
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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.6 US tons
Inventory rating17.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadOther
Structure length70 ft (21.3 m)
Longest span46 ft (14 m)
Deck width42 ft (12.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2024)
Projected traffic300 by 2044
Trucks2%
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 Cave RD over Br.Of Sni-A-Bar CR built?

It was built in 1930, making it 95 years old in 2025.

What condition is Cave RD over Br.Of Sni-A-Bar 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 February 2023.

How much traffic does Cave RD over Br.Of Sni-A-Bar CR carry?

About 200 vehicles per day (2024 count), of which roughly 2% are trucks.

How long is Cave RD over Br.Of Sni-A-Bar CR?

The structure is 70 ft (21.3 m) long with a longest span of 46 ft (14 m) and a deck 42 ft wide.

Who owns Cave RD over Br.Of Sni-A-Bar CR?

It is owned by the County Highway Agency.