Mo 370 E over Cst Elm ST
FairSt. Charles County, Missouri · S 13 T 47 N R 4 E · Structure no. 4202
- Built
- 1994
- 31 years old
- Condition
- Fair
- inspected October 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 284 ft
- 3 main spans
- Daily traffic
- 20,574
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
Mo 370 E over Cst Elm ST is a steel continuous stringer/multi-beam or girder carrying Mo 370 E over Cst Elm ST in St. Charles County, Missouri. It was built in 1994, so it is 31 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 20,574 vehicles a day, roughly 5% of them trucks, projected to reach 34,976 by 2044. The structure is 284 ft (86.6 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Mo 370 E over Cst Elm ST built?
It was built in 1994, making it 31 years old in 2025.
What condition is Mo 370 E over Cst Elm ST 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 October 2023.
How much traffic does Mo 370 E over Cst Elm ST carry?
About 20,574 vehicles per day (2024 count), of which roughly 5% are trucks.
How long is Mo 370 E over Cst Elm ST?
The structure is 284 ft (86.6 m) long with a longest span of 117 ft (35.7 m) and a deck 58 ft wide.
Who owns Mo 370 E over Cst Elm ST?
It is owned by the State Highway Agency.