US Bridges

323 ST over Owens CR

GoodPosted for load

Cass County, Missouri · S 9 T 43 N R 32 W · Structure no. 24582

Built
1930
95 years old, rebuilt 1988
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
62 ft
1 main span
Daily traffic
35
2024 count
Owner
County
County Highway Agency

About this bridge

323 ST over Owens CR is a steel stringer/multi-beam or girder carrying 323 ST over Owens CR in Cass County, Missouri. It was built in 1930 and reconstructed in 1988, so it is 95 years old, older 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. Its operating status is: posted for load restriction.

It carries about 35 vehicles a day, roughly 5% of them trucks, projected to reach 56 by 2044. The structure is 62 ft (18.9 m) long and 25 ft wide. If it were closed, the detour would be 5 mi (8 km).

Carries323 ST
CrossesOwens CR
LocationS 9 T 43 N R 32 W
RouteCounty Highway 513
Coordinates38.53232, -94.46261
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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.7 US tons
Inventory rating22.8 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadOther
Structure length62 ft (18.9 m)
Longest span58 ft (17.7 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2024)
Projected traffic56 by 2044
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 323 ST over Owens CR built?

It was built in 1930, making it 95 years old in 2025. It was reconstructed in 1988.

What condition is 323 ST over Owens 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 March 2023.

How much traffic does 323 ST over Owens CR carry?

About 35 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is 323 ST over Owens CR?

The structure is 62 ft (18.9 m) long with a longest span of 58 ft (17.7 m) and a deck 25 ft wide.

Who owns 323 ST over Owens CR?

It is owned by the County Highway Agency.