US Bridges

Old Route 24 & 65 over Standley Br

Fair

Carroll County, Missouri · S 4 T 52 N R 23 W · Structure no. 14596

Built
1940
85 years old
Condition
Fair
inspected February 2024
Type
Culvert
Concrete Continuous
Length
28 ft
2 main spans
Daily traffic
300
2024 count
Owner
County
County Highway Agency

About this bridge

Old Route 24 & 65 over Standley Br is a concrete continuous culvert carrying Old Route 24 & 65 over Standley Br in Carroll County, Missouri. It was built in 1940, so it is 85 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 300 vehicles a day, roughly 5% of them trucks, projected to reach 330 by 2044. The structure is 28 ft (8.5 m) long and 38 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesOld Route 24 & 65
CrossesStandley Br
LocationS 4 T 52 N R 23 W
RouteCity Street 0
Coordinates39.34999, -93.48807
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry8: Equal to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.6 US tons
Inventory rating17.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadOther
Structure length28 ft (8.5 m)
Longest span13 ft (4 m)
Deck width38 ft (11.6 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic300 (2024)
Projected traffic330 by 2044
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCity or Municipal 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 Old Route 24 & 65 over Standley Br built?

It was built in 1940, making it 85 years old in 2025.

What condition is Old Route 24 & 65 over Standley Br 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 February 2024.

How much traffic does Old Route 24 & 65 over Standley Br carry?

About 300 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Old Route 24 & 65 over Standley Br?

The structure is 28 ft (8.5 m) long with a longest span of 13 ft (4 m) and a deck 38 ft wide.

Who owns Old Route 24 & 65 over Standley Br?

It is owned by the County Highway Agency and maintained by the City or Municipal Highway Agency.