US Bridges

County RD SE 1401 over Weaubleau CR

PoorPosted for load

St. Clair County, Missouri · S 26 T 37 N R 24 W · Structure no. 21483

Built
1946
79 years old
Condition
Poor
inspected December 2023
Type
Slab
Concrete Continuous
Length
37 ft
4 main spans
Daily traffic
15
2023 count
Owner
County
County Highway Agency

About this bridge

County RD SE 1401 over Weaubleau CR is a concrete continuous slab carrying County RD SE 1401 over Weaubleau CR in St. Clair County, Missouri. It was built in 1946, so it is 79 years old, older than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 15 vehicles a day, roughly 10% of them trucks, projected to reach 18 by 2043. The structure is 37 ft (11.3 m) long and 13 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

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CarriesCounty RD SE 1401
CrossesWeaubleau CR
LocationS 26 T 37 N R 24 W
RouteCounty Highway 308
CountySt. Clair County
StateMissouri
Coordinates37.93724, -93.53475
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating15.9 US tons
Inventory rating9.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadOther
Structure length37 ft (11.3 m)
Longest span9 ft (2.6 m)
Deck width13 ft (4 m)
Roadway width13 ft (4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15 (2023)
Projected traffic18 by 2043
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$327,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County RD SE 1401 over Weaubleau CR built?

It was built in 1946, making it 79 years old in 2025.

What condition is County RD SE 1401 over Weaubleau CR in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in December 2023.

How much traffic does County RD SE 1401 over Weaubleau CR carry?

About 15 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is County RD SE 1401 over Weaubleau CR?

The structure is 37 ft (11.3 m) long with a longest span of 9 ft (2.6 m) and a deck 13 ft wide.

Who owns County RD SE 1401 over Weaubleau CR?

It is owned by the County Highway Agency.