US Bridges

County RD 448 over Bean CR

Fair

Audrain County, Missouri · S 29 T 52 N R 8 W · Structure no. 22578

Built
1991
34 years old
Condition
Fair
inspected April 2023
Type
Culvert
Concrete
Length
27 ft
2 main spans
Daily traffic
150
2023 count
Owner
County
County Highway Agency

About this bridge

County RD 448 over Bean CR is a concrete culvert carrying County RD 448 over Bean CR in Audrain County, Missouri. It was built in 1991, so it is 34 years old, younger 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 150 vehicles a day, roughly 20% of them trucks, projected to reach 188 by 2043. The structure is 27 ft (8.2 m) long. If it were closed, the detour would be 6.2 mi (10 km).

Location

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CarriesCounty RD 448
CrossesBean CR
LocationS 29 T 52 N R 8 W
RouteCounty Highway 363
CountyAudrain County
StateMissouri
Coordinates39.25031, -91.83
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length27 ft (8.2 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2023)
Projected traffic188 by 2043
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 448 over Bean CR built?

It was built in 1991, making it 34 years old in 2025.

What condition is County RD 448 over Bean 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 April 2023.

How much traffic does County RD 448 over Bean CR carry?

About 150 vehicles per day (2023 count), of which roughly 20% are trucks.

How long is County RD 448 over Bean CR?

The structure is 27 ft (8.2 m) long with a longest span of 12 ft (3.7 m).

Who owns County RD 448 over Bean CR?

It is owned by the County Highway Agency.