US Bridges

Gardner RD over Br of Sni-A-Bar CR

Fair

Jackson County, Missouri · S 18 T 49 N R 29 W · Structure no. 16682

Built
1960
65 years old
Condition
Fair
inspected February 2023
Type
Culvert
Concrete
Length
24 ft
2 main spans
Daily traffic
209
2024 count
Owner
County
County Highway Agency

About this bridge

Gardner RD over Br of Sni-A-Bar CR is a concrete culvert carrying Gardner RD over Br of Sni-A-Bar CR in Jackson County, Missouri. It was built in 1960, so it is 65 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.

It carries about 209 vehicles a day, roughly 5% of them trucks, projected to reach 314 by 2044. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesGardner RD
CrossesBr of Sni-A-Bar CR
LocationS 18 T 49 N R 29 W
RouteCounty Highway 129
CountyJackson County
StateMissouri
Coordinates39.06046, -94.15015
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.7 US tons
Inventory rating29.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadOther
Structure length24 ft (7.3 m)
Longest span11 ft (3.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic209 (2024)
Projected traffic314 by 2044
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Gardner RD over Br of Sni-A-Bar CR built?

It was built in 1960, making it 65 years old in 2025.

What condition is Gardner 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 Gardner RD over Br of Sni-A-Bar CR carry?

About 209 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Gardner RD over Br of Sni-A-Bar CR?

The structure is 24 ft (7.3 m) long with a longest span of 11 ft (3.4 m).

Who owns Gardner RD over Br of Sni-A-Bar CR?

It is owned by the County Highway Agency.