Is 55 S over Crd Bayless Ave
FairPosted for loadSt. Louis County, Missouri · S 18 T 44 N R 7 E · Structure no. 366
- Built
- 1962
- 63 years old, rebuilt 1987
- Condition
- Fair
- inspected July 2024
- Type
- Slab
- Concrete Continuous
- Length
- 197 ft
- 4 main spans
- Daily traffic
- 111,533
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
Is 55 S over Crd Bayless Ave is a concrete continuous slab carrying Is 55 S over Crd Bayless Ave in St. Louis County, Missouri. It was built in 1962 and reconstructed in 1987, so it is 63 years old, older 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. Its operating status is: posted for load restriction.
It carries about 111,533 vehicles a day, roughly 18% of them trucks, projected to reach 139,416 by 2044. The structure is 197 ft (60 m) long and 127 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Is 55 S over Crd Bayless Ave built?
It was built in 1962, making it 63 years old in 2025. It was reconstructed in 1987.
What condition is Is 55 S over Crd Bayless Ave 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 Is 55 S over Crd Bayless Ave carry?
About 111,533 vehicles per day (2024 count), of which roughly 18% are trucks.
How long is Is 55 S over Crd Bayless Ave?
The structure is 197 ft (60 m) long with a longest span of 60 ft (18.3 m) and a deck 127 ft wide.
Who owns Is 55 S over Crd Bayless Ave?
It is owned by the State Highway Agency.