US Bridges

County RD 447 over Auxvasse CR

Good

Callaway County, Missouri · S 32 T 46 N R 8 W · Structure no. 21644

Built
2001
24 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
233 ft
3 main spans
Daily traffic
50
2023 count
Owner
County
County Highway Agency

About this bridge

County RD 447 over Auxvasse CR is a prestressed concrete stringer/multi-beam or girder carrying County RD 447 over Auxvasse CR in Callaway County, Missouri. It was built in 2001, so it is 24 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 75 by 2043. The structure is 233 ft (71 m) long and 25 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

Location

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CarriesCounty RD 447
CrossesAuxvasse CR
LocationS 32 T 46 N R 8 W
RouteCounty Highway 316
CountyCallaway County
StateMissouri
Coordinates38.70857, -91.84235
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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating98.2 US tons
Inventory rating58.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length233 ft (71 m)
Longest span90 ft (27.4 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2023)
Projected traffic75 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.2 mi (26 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 County RD 447 over Auxvasse CR built?

It was built in 2001, making it 24 years old in 2025.

What condition is County RD 447 over Auxvasse 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 October 2024.

How much traffic does County RD 447 over Auxvasse CR carry?

About 50 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is County RD 447 over Auxvasse CR?

The structure is 233 ft (71 m) long with a longest span of 90 ft (27.4 m) and a deck 25 ft wide.

Who owns County RD 447 over Auxvasse CR?

It is owned by the County Highway Agency.