Mo 141 N over Small Lake
GoodSt. Louis County, Missouri · S 33 T 47 N R 5 E · Structure no. 36770
- Built
- 2022
- 3 years old
- Condition
- Good
- inspected August 2024
- Type
- Box Beam or Girders - Single or Spread
- Prestressed Concrete
- Length
- 60 ft
- 1 main span
- Daily traffic
- 8,592
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
Mo 141 N over Small Lake is a prestressed concrete box beam or girders - single or spread carrying Mo 141 N over Small Lake in St. Louis County, Missouri. It was built in 2022, so it is 3 years old, younger 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.
It carries about 8,592 vehicles a day, roughly 5% of them trucks, projected to reach 10,740 by 2044. The structure is 60 ft (18.4 m) long and 41 ft wide. If it were closed, the detour would be 6.2 mi (10 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 9 Excellent | No problems noted. |
| Substructure | 9 Excellent | No problems noted. |
| Channel and channel protection | 9 Excellent | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Mo 141 N over Small Lake built?
It was built in 2022, making it 3 years old in 2025.
What condition is Mo 141 N over Small Lake 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 August 2024.
How much traffic does Mo 141 N over Small Lake carry?
About 8,592 vehicles per day (2024 count), of which roughly 5% are trucks.
How long is Mo 141 N over Small Lake?
The structure is 60 ft (18.4 m) long with a longest span of 57 ft (17.4 m) and a deck 41 ft wide.
Who owns Mo 141 N over Small Lake?
It is owned by the State Highway Agency.