US Bridges

Bynum Spur RD over Br of Sni-A-Bar CR

Fair

Jackson County, Missouri · S 7 T 47 N R 29 W · Structure no. 30781

Built
2003
22 years old
Condition
Fair
inspected February 2023
Type
Culvert
Concrete
Length
22 ft
1 main span
Daily traffic
20
2024 count
Owner
County
County Highway Agency

About this bridge

Bynum Spur RD over Br of Sni-A-Bar CR is a concrete culvert carrying Bynum Spur RD over Br of Sni-A-Bar CR in Jackson County, Missouri. It was built in 2003, so it is 22 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 20 vehicles a day, roughly 5% of them trucks, projected to reach 30 by 2044. The structure is 22 ft (6.7 m) long and 32 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesBynum Spur RD
CrossesBr of Sni-A-Bar CR
LocationS 7 T 47 N R 29 W
RouteCounty Highway 310
CountyJackson County
StateMissouri
Coordinates38.89358, -94.16188
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 above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.4 US tons
Inventory rating45.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 25 or greater
Structure length22 ft (6.7 m)
Longest span20 ft (6.1 m)
Deck width32 ft (9.8 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2024)
Projected traffic30 by 2044
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 Bynum Spur RD over Br of Sni-A-Bar CR built?

It was built in 2003, making it 22 years old in 2025.

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

About 20 vehicles per day (2024 count), of which roughly 5% are trucks.

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

The structure is 22 ft (6.7 m) long with a longest span of 20 ft (6.1 m) and a deck 32 ft wide.

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

It is owned by the County Highway Agency.