Mo 370 W over Cowmire CR
FairSt. Louis County, Missouri · S 2038 T 47 N R 5 E · Structure no. 3979
- Built
- 1990
- 35 years old
- Condition
- Fair
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 182 ft
- 3 main spans
- Daily traffic
- 23,497
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
Mo 370 W over Cowmire CR is a prestressed concrete continuous stringer/multi-beam or girder carrying Mo 370 W over Cowmire CR in St. Louis County, Missouri. It was built in 1990, so it is 35 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 23,497 vehicles a day, roughly 5% of them trucks, projected to reach 29,371 by 2044. The structure is 182 ft (55.5 m) long and 58 ft wide. If it were closed, the detour would be 0.6 mi (1 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Mo 370 W over Cowmire CR built?
It was built in 1990, making it 35 years old in 2025.
What condition is Mo 370 W over Cowmire 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 August 2024.
How much traffic does Mo 370 W over Cowmire CR carry?
About 23,497 vehicles per day (2024 count), of which roughly 5% are trucks.
How long is Mo 370 W over Cowmire CR?
The structure is 182 ft (55.5 m) long with a longest span of 71 ft (21.6 m) and a deck 58 ft wide.
Who owns Mo 370 W over Cowmire CR?
It is owned by the State Highway Agency.