US Bridges

323 ST over Sugar CR

GoodPosted for load

Cass County, Missouri · S 9 T 43 N R 30 W · Structure no. 24951

Built
1970
55 years old
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
132 ft
3 main spans
Daily traffic
45
2024 count
Owner
County
County Highway Agency

About this bridge

323 ST over Sugar CR is a steel stringer/multi-beam or girder carrying 323 ST over Sugar CR in Cass County, Missouri. It was built in 1970, so it is 55 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 45 vehicles a day, roughly 5% of them trucks, projected to reach 72 by 2044. The structure is 132 ft (40.2 m) long and 26 ft wide. If it were closed, the detour would be 5 mi (8 km).

Carries323 ST
CrossesSugar CR
LocationS 9 T 43 N R 30 W
RouteCounty Highway 585
Coordinates38.52798, -94.23696
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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating25.8 US tons
Inventory rating12.9 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length132 ft (40.2 m)
Longest span48 ft (14.6 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic45 (2024)
Projected traffic72 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 Sugar CR built?

It was built in 1970, making it 55 years old in 2025.

What condition is 323 ST over Sugar 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 April 2023.

How much traffic does 323 ST over Sugar CR carry?

About 45 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is 323 ST over Sugar CR?

The structure is 132 ft (40.2 m) long with a longest span of 48 ft (14.6 m) and a deck 26 ft wide.

Who owns 323 ST over Sugar CR?

It is owned by the County Highway Agency.