US Bridges

County RD SE 350 over Weaubleau CR

Fair

St. Clair County, Missouri · S 18 T 37 N R 24 W · Structure no. 32535

Built
2008
17 years old
Condition
Fair
inspected December 2023
Type
Culvert
Concrete Continuous
Length
27 ft
2 main spans
Daily traffic
5
2023 count
Owner
County
County Highway Agency

About this bridge

County RD SE 350 over Weaubleau CR is a concrete continuous culvert carrying County RD SE 350 over Weaubleau CR in St. Clair County, Missouri. It was built in 2008, so it is 17 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 5 vehicles a day, roughly 10% of them trucks, projected to reach 6 by 2043. The structure is 27 ft (8.1 m) long and 11 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

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CarriesCounty RD SE 350
CrossesWeaubleau CR
LocationS 18 T 37 N R 24 W
RouteCounty Highway 329
CountySt. Clair County
StateMissouri
Coordinates37.97294, -93.60696
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 inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating63.5 US tons
Inventory rating37.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length27 ft (8.1 m)
Longest span12 ft (3.7 m)
Deck width11 ft (3.5 m)
Roadway width11 ft (3.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5 (2023)
Projected traffic6 by 2043
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$153,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County RD SE 350 over Weaubleau CR built?

It was built in 2008, making it 17 years old in 2025.

What condition is County RD SE 350 over Weaubleau 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 December 2023.

How much traffic does County RD SE 350 over Weaubleau CR carry?

About 5 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is County RD SE 350 over Weaubleau CR?

The structure is 27 ft (8.1 m) long with a longest span of 12 ft (3.7 m) and a deck 11 ft wide.

Who owns County RD SE 350 over Weaubleau CR?

It is owned by the County Highway Agency.