US Bridges

Gyllespie RD over Sni-A-Bar CR

Good

Lafayette County, Missouri · S 15 T 49 N R 29 W · Structure no. 29739

Built
2002
23 years old
Condition
Good
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
150 ft
2 main spans
Daily traffic
50
2024 count
Owner
County
County Highway Agency

About this bridge

Gyllespie RD over Sni-A-Bar CR is a steel stringer/multi-beam or girder carrying Gyllespie RD over Sni-A-Bar CR in Lafayette County, Missouri. It was built in 2002, so it is 23 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 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 50 vehicles a day, roughly 10% of them trucks, projected to reach 65 by 2044. The structure is 150 ft (45.7 m) long and 25 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesGyllespie RD
CrossesSni-A-Bar CR
LocationS 15 T 49 N R 29 W
RouteCounty Highway 33
Coordinates39.05106, -94.09941
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.
Superstructure7 GoodSome minor problems.
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 inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.2 US tons
Inventory rating58.5 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans2 (+1 approach)
Design loadUnknown
Structure length150 ft (45.7 m)
Longest span65 ft (19.8 m)
Deck width25 ft (7.5 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2024)
Projected traffic65 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Gyllespie RD over Sni-A-Bar CR built?

It was built in 2002, making it 23 years old in 2025.

What condition is Gyllespie RD over 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 November 2023.

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

About 50 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Gyllespie RD over Sni-A-Bar CR?

The structure is 150 ft (45.7 m) long with a longest span of 65 ft (19.8 m) and a deck 25 ft wide.

Who owns Gyllespie RD over Sni-A-Bar CR?

It is owned by the County Highway Agency.