US Bridges

Stillhouse RD over Trib Sni-A-Bar CR

Good

Jackson County, Missouri · S 7 T 48 N R 29 W · Structure no. 34549

Built
2012
13 years old
Condition
Good
inspected March 2023
Type
Slab
Concrete
Length
61 ft
1 main span
Daily traffic
298
2024 count
Owner
County
County Highway Agency

About this bridge

Stillhouse RD over Trib Sni-A-Bar CR is a concrete slab carrying Stillhouse RD over Trib Sni-A-Bar CR in Jackson 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 298 vehicles a day, roughly 5% of them trucks, projected to reach 447 by 2044. The structure is 61 ft (18.6 m) long and 37 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesStillhouse RD
CrossesTrib Sni-A-Bar CR
LocationS 7 T 48 N R 29 W
RouteCounty Highway 276
Coordinates38.98165, -94.16269
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating66.5 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length61 ft (18.6 m)
Longest span25 ft (7.6 m)
Deck width37 ft (11.2 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic298 (2024)
Projected traffic447 by 2044
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 Stillhouse RD over Trib Sni-A-Bar CR built?

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

What condition is Stillhouse RD over Trib Sni-A-Bar CR 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 2023.

How much traffic does Stillhouse RD over Trib Sni-A-Bar CR carry?

About 298 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Stillhouse RD over Trib Sni-A-Bar CR?

The structure is 61 ft (18.6 m) long with a longest span of 25 ft (7.6 m) and a deck 37 ft wide.

Who owns Stillhouse RD over Trib Sni-A-Bar CR?

It is owned by the County Highway Agency.