US Bridges

331 ST over Br of Harding CR

Fair

Cass County, Missouri · S 15 T 43 N R 33 W · Structure no. 24558

Built
1900
125 years old, rebuilt 1982
Condition
Fair
inspected March 2023
Type
Culvert
Concrete
Length
49 ft
3 main spans
Daily traffic
100
2024 count
Owner
County
County Highway Agency

About this bridge

331 ST over Br of Harding CR is a concrete culvert carrying 331 ST over Br of Harding CR in Cass County, Missouri. It was built in 1900 and reconstructed in 1982, so it is 125 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 100 vehicles a day, roughly 5% of them trucks, projected to reach 160 by 2044. The structure is 49 ft (14.9 m) long and 30 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
Carries331 ST
CrossesBr of Harding CR
LocationS 15 T 43 N R 33 W
RouteCounty Highway 510
CountyCass County
StateMissouri
Coordinates38.51947, -94.55185
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 inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than 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
DeckNot applicable
Main spans3
Design loadOther
Structure length49 ft (14.9 m)
Longest span16 ft (4.9 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2024)
Projected traffic160 by 2044
Trucks5%
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 331 ST over Br of Harding CR built?

It was built in 1900, making it 125 years old in 2025. It was reconstructed in 1982.

What condition is 331 ST over Br of Harding 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 March 2023.

How much traffic does 331 ST over Br of Harding CR carry?

About 100 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is 331 ST over Br of Harding CR?

The structure is 49 ft (14.9 m) long with a longest span of 16 ft (4.9 m) and a deck 30 ft wide.

Who owns 331 ST over Br of Harding CR?

It is owned by the County Highway Agency.