S Mcknight RD S over Is 64
GoodSt. Louis County, Missouri · S 20 T 45 N R 6 E · Structure no. 32225
- Built
- 2008
- 17 years old
- Condition
- Good
- inspected October 2024
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 146 ft
- 1 main span
- Daily traffic
- 11,057
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
S Mcknight RD S over Is 64 is a prestressed concrete tee beam carrying S Mcknight RD S over Is 64 in St. Louis County, Missouri. It was built in 2008, so it is 17 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 11,057 vehicles a day, roughly 5% of them trucks, projected to reach 15,480 by 2044. The structure is 146 ft (44.5 m) long and 60 ft wide. If it were closed, the detour would be 3.1 mi (5 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 S Mcknight RD S over Is 64 built?
It was built in 2008, making it 17 years old in 2025.
What condition is S Mcknight RD S over Is 64 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 October 2024.
How much traffic does S Mcknight RD S over Is 64 carry?
About 11,057 vehicles per day (2024 count), of which roughly 5% are trucks.
How long is S Mcknight RD S over Is 64?
The structure is 146 ft (44.5 m) long with a longest span of 72 ft (21.9 m) and a deck 60 ft wide.
Who owns S Mcknight RD S over Is 64?
It is owned by the State Highway Agency.