US Bridges

Nebgen RD over Br of Sni-A-Bar CR

Good

Jackson County, Missouri · S 13 T 48 N R 30 W · Structure no. 20555

Built
1905
120 years old, rebuilt 1990
Condition
Good
inspected February 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
90 ft
1 main span
Daily traffic
330
2024 count
Owner
County
County Highway Agency

About this bridge

Nebgen RD over Br of Sni-A-Bar CR is a prestressed concrete stringer/multi-beam or girder carrying Nebgen RD over Br of Sni-A-Bar CR in Jackson County, Missouri. It was built in 1905 and reconstructed in 1990, so it is 120 years old, older 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 330 vehicles a day, roughly 5% of them trucks, projected to reach 495 by 2044. The structure is 90 ft (27.4 m) long and 30 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesNebgen RD
CrossesBr of Sni-A-Bar CR
LocationS 13 T 48 N R 30 W
RouteCounty Highway 264
Coordinates38.96987, -94.17061
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.6 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length90 ft (27.4 m)
Longest span85 ft (25.9 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic330 (2024)
Projected traffic495 by 2044
Trucks5%
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 Nebgen RD over Br of Sni-A-Bar CR built?

It was built in 1905, making it 120 years old in 2025. It was reconstructed in 1990.

What condition is Nebgen RD over Br of 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 February 2023.

How much traffic does Nebgen RD over Br of Sni-A-Bar CR carry?

About 330 vehicles per day (2024 count), of which roughly 5% are trucks.

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

The structure is 90 ft (27.4 m) long with a longest span of 85 ft (25.9 m) and a deck 30 ft wide.

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

It is owned by the County Highway Agency.