ST Louis Mills Blv over Mo 370
GoodSt. Louis County, Missouri · S 26 T 47 N R 5 E · Structure no. 29667
- Built
- 2003
- 22 years old
- Condition
- Good
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 230 ft
- 2 main spans
- Daily traffic
- 4,762
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
ST Louis Mills Blv over Mo 370 is a steel continuous stringer/multi-beam or girder carrying ST Louis Mills Blv over Mo 370 in St. Louis County, Missouri. It was built in 2003, so it is 22 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 4,762 vehicles a day, roughly 10% of them trucks, projected to reach 7,143 by 2044. The structure is 230 ft (70.1 m) long and 53 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was ST Louis Mills Blv over Mo 370 built?
It was built in 2003, making it 22 years old in 2025.
What condition is ST Louis Mills Blv over Mo 370 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 ST Louis Mills Blv over Mo 370 carry?
About 4,762 vehicles per day (2024 count), of which roughly 10% are trucks.
How long is ST Louis Mills Blv over Mo 370?
The structure is 230 ft (70.1 m) long with a longest span of 115 ft (35.1 m) and a deck 53 ft wide.
Who owns ST Louis Mills Blv over Mo 370?
It is owned by the State Highway Agency.