Mo 141 S over Meramec Rvr
FairSt. Louis County, Missouri · S 18 T 44 N R 5 E · Structure no. 3290
- Built
- 1983
- 42 years old
- Condition
- Fair
- inspected July 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 635 ft
- 3 main spans
- Daily traffic
- 58,942
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
Mo 141 S over Meramec Rvr is a steel continuous stringer/multi-beam or girder carrying Mo 141 S over Meramec Rvr in St. Louis County, Missouri. It was built in 1983, so it is 42 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 5 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 58,942 vehicles a day, roughly 5% of them trucks, projected to reach 73,678 by 2044. The structure is 635 ft (193.5 m) long and 85 ft wide. If it were closed, the detour would be 8.1 mi (13 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 |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Mo 141 S over Meramec Rvr built?
It was built in 1983, making it 42 years old in 2025.
What condition is Mo 141 S over Meramec Rvr 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 July 2024.
How much traffic does Mo 141 S over Meramec Rvr carry?
About 58,942 vehicles per day (2024 count), of which roughly 5% are trucks.
How long is Mo 141 S over Meramec Rvr?
The structure is 635 ft (193.5 m) long with a longest span of 150 ft (45.7 m) and a deck 85 ft wide.
Who owns Mo 141 S over Meramec Rvr?
It is owned by the State Highway Agency.