US Bridges

Rt Bb S over Auxvasse CR

Fair

Callaway County, Missouri · S 36 T 45 N R 10 W · Structure no. 2034

Built
1968
57 years old, rebuilt 2024
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
173 ft
3 main spans
Daily traffic
361
2024 count
Owner
State
State Highway Agency

About this bridge

Rt Bb S over Auxvasse CR is a steel continuous stringer/multi-beam or girder carrying Rt Bb S over Auxvasse CR in Callaway County, Missouri. It was built in 1968 and reconstructed in 2024, so it is 57 years old, older 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 361 vehicles a day, roughly 2% of them trucks, projected to reach 560 by 2044. The structure is 173 ft (52.7 m) long and 31 ft wide. If it were closed, the detour would be 24.2 mi (39 km).

CarriesRt Bb S
CrossesAuxvasse CR
LocationS 36 T 45 N R 10 W
RouteState Highway 0BB
Coordinates38.63558, -92.00324
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41.7 US tons
Inventory rating24.8 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length173 ft (52.7 m)
Longest span67 ft (20.4 m)
Deck width31 ft (9.3 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic361 (2024)
Projected traffic560 by 2044
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.2 mi (39 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Rt Bb S over Auxvasse CR built?

It was built in 1968, making it 57 years old in 2025. It was reconstructed in 2024.

What condition is Rt Bb S over Auxvasse 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 October 2024.

How much traffic does Rt Bb S over Auxvasse CR carry?

About 361 vehicles per day (2024 count), of which roughly 2% are trucks.

How long is Rt Bb S over Auxvasse CR?

The structure is 173 ft (52.7 m) long with a longest span of 67 ft (20.4 m) and a deck 31 ft wide.

Who owns Rt Bb S over Auxvasse CR?

It is owned by the State Highway Agency.