Is 170 E over Cst S Brentwood Blvd
FairSt. Louis County, Missouri · S 16 T 45 N R 6 E · Structure no. 2416
- Built
- 1968
- 57 years old, rebuilt 1986
- Condition
- Fair
- inspected October 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 125 ft
- 2 main spans
- Daily traffic
- 41,851
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
Is 170 E over Cst S Brentwood Blvd is a steel continuous stringer/multi-beam or girder carrying Is 170 E over Cst S Brentwood Blvd in St. Louis County, Missouri. It was built in 1968 and reconstructed in 1986, so it is 57 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.
It carries about 41,851 vehicles a day, roughly 4% of them trucks, projected to reach 52,314 by 2044. The structure is 125 ft (38.1 m) long and 50 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. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Is 170 E over Cst S Brentwood Blvd built?
It was built in 1968, making it 57 years old in 2025. It was reconstructed in 1986.
What condition is Is 170 E over Cst S Brentwood Blvd 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 Is 170 E over Cst S Brentwood Blvd carry?
About 41,851 vehicles per day (2024 count), of which roughly 4% are trucks.
How long is Is 170 E over Cst S Brentwood Blvd?
The structure is 125 ft (38.1 m) long with a longest span of 63 ft (19.1 m) and a deck 50 ft wide.
Who owns Is 170 E over Cst S Brentwood Blvd?
It is owned by the State Highway Agency.