Boones Crossing RD over Is 64
FairSt. Louis County, Missouri · S 125 T 45 N R 4 E · Structure no. 11831
- Built
- 1999
- 26 years old
- Condition
- Fair
- inspected October 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 355 ft
- 6 main spans
- Daily traffic
- 21,252
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
Boones Crossing RD over Is 64 is a prestressed concrete continuous stringer/multi-beam or girder carrying Boones Crossing RD over Is 64 in St. Louis County, Missouri. It was built in 1999, so it is 26 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 21,252 vehicles a day, roughly 5% of them trucks, projected to reach 31,878 by 2044. The structure is 355 ft (108.2 m) long and 111 ft wide. If it were closed, the detour would be 9.9 mi (16 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 Boones Crossing RD over Is 64 built?
It was built in 1999, making it 26 years old in 2025.
What condition is Boones Crossing RD over Is 64 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 Boones Crossing RD over Is 64 carry?
About 21,252 vehicles per day (2024 count), of which roughly 5% are trucks.
How long is Boones Crossing RD over Is 64?
The structure is 355 ft (108.2 m) long with a longest span of 67 ft (20.4 m) and a deck 111 ft wide.
Who owns Boones Crossing RD over Is 64?
It is owned by the State Highway Agency.