Mo 141 S over Small Lk
FairSt. Louis County, Missouri · S 33 T 47 N R 5 E · Structure no. 34151
- Built
- 1972
- 53 years old
- Condition
- Fair
- inspected November 2023
- Type
- Culvert
- Concrete Continuous
- Length
- 22 ft
- 2 main spans
- Daily traffic
- 3,387
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
Mo 141 S over Small Lk is a concrete continuous culvert carrying Mo 141 S over Small Lk in St. Louis County, Missouri. It was built in 1972, so it is 53 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 3,387 vehicles a day, roughly 5% of them trucks, projected to reach 4,234 by 2044. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Channel and channel protection | 7 Good | Some minor problems. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Mo 141 S over Small Lk built?
It was built in 1972, making it 53 years old in 2025.
What condition is Mo 141 S over Small Lk 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 November 2023.
How much traffic does Mo 141 S over Small Lk carry?
About 3,387 vehicles per day (2024 count), of which roughly 5% are trucks.
How long is Mo 141 S over Small Lk?
The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3 m).
Who owns Mo 141 S over Small Lk?
It is owned by the State Highway Agency.