US Bridges

Snow RD over Small CR

Fair

Jackson County, Missouri · S 7 T 47 N R 29 W · Structure no. 21493

Built
1993
32 years old
Condition
Fair
inspected February 2023
Type
Slab
Concrete
Length
39 ft
1 main span
Daily traffic
234
2024 count
Owner
County
County Highway Agency

About this bridge

Snow RD over Small CR is a concrete slab carrying Snow RD over Small CR in Jackson County, Missouri. It was built in 1993, so it is 32 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 234 vehicles a day, roughly 2% of them trucks, projected to reach 351 by 2044. The structure is 39 ft (11.9 m) long and 48 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesSnow RD
CrossesSmall CR
LocationS 7 T 47 N R 29 W
RouteCounty Highway 309
Coordinates38.90116, -94.16973
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy7: Better than 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
DeckNot applicable
Main spans1
Design loadHS 20
Structure length39 ft (11.9 m)
Longest span36 ft (11 m)
Deck width48 ft (14.5 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic234 (2024)
Projected traffic351 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 Snow RD over Small CR built?

It was built in 1993, making it 32 years old in 2025.

What condition is Snow RD over Small 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 Snow RD over Small CR carry?

About 234 vehicles per day (2024 count), of which roughly 2% are trucks.

How long is Snow RD over Small CR?

The structure is 39 ft (11.9 m) long with a longest span of 36 ft (11 m) and a deck 48 ft wide.

Who owns Snow RD over Small CR?

It is owned by the County Highway Agency.