Mo 340 E over US 67
FairSt. Louis County, Missouri · S 1 T 45 N R 5 E · Structure no. 29634
- Built
- 2003
- 22 years old
- Condition
- Fair
- inspected October 2024
- Type
- Slab
- Prestressed Concrete Continuous
- Length
- 200 ft
- 4 main spans
- Daily traffic
- 24,888
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
Mo 340 E over US 67 is a prestressed concrete continuous slab carrying Mo 340 E over US 67 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 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 24,888 vehicles a day, roughly 5% of them trucks, projected to reach 34,843 by 2044. The structure is 200 ft (61 m) long and 100 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Mo 340 E over US 67 built?
It was built in 2003, making it 22 years old in 2025.
What condition is Mo 340 E over US 67 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 2024.
How much traffic does Mo 340 E over US 67 carry?
About 24,888 vehicles per day (2024 count), of which roughly 5% are trucks.
How long is Mo 340 E over US 67?
The structure is 200 ft (61 m) long with a longest span of 52 ft (15.8 m) and a deck 100 ft wide.
Who owns Mo 340 E over US 67?
It is owned by the State Highway Agency.