US Bridges

Rt M S over Auxvasse CR

Fair

Callaway County, Missouri · S 23 T 49 N R 10 W · Structure no. 8477

Built
1965
60 years old, rebuilt 2018
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
169 ft
3 main spans
Daily traffic
896
2024 count
Owner
State
State Highway Agency

About this bridge

Rt M S over Auxvasse CR is a steel continuous stringer/multi-beam or girder carrying Rt M S over Auxvasse CR in Callaway County, Missouri. It was built in 1965 and reconstructed in 2018, so it is 60 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 896 vehicles a day, roughly 16% of them trucks, projected to reach 1,389 by 2044. The structure is 169 ft (51.5 m) long and 29 ft wide. If it were closed, the detour would be 19.3 mi (31 km).

CarriesRt M S
CrossesAuxvasse CR
LocationS 23 T 49 N R 10 W
RouteState Highway 0M
Coordinates39.0098, -92.01111
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating27.8 US tons
Inventory rating16.9 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length169 ft (51.5 m)
Longest span65 ft (19.8 m)
Deck width29 ft (8.7 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic896 (2024)
Projected traffic1,389 by 2044
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.3 mi (31 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 M S over Auxvasse CR built?

It was built in 1965, making it 60 years old in 2025. It was reconstructed in 2018.

What condition is Rt M 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 M S over Auxvasse CR carry?

About 896 vehicles per day (2024 count), of which roughly 16% are trucks.

How long is Rt M S over Auxvasse CR?

The structure is 169 ft (51.5 m) long with a longest span of 65 ft (19.8 m) and a deck 29 ft wide.

Who owns Rt M S over Auxvasse CR?

It is owned by the State Highway Agency.