Imperial DR over Dellwood CR
FairPosted for loadSt. Louis County, Missouri · S 6 T 46 N R 7 E · Structure no. 15526
- Built
- 1939
- 86 years old, rebuilt 1984
- Condition
- Fair
- inspected February 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 25 ft
- 1 main span
- Daily traffic
- 1,278
- 2024 count
- Owner
- County
- County Highway Agency
About this bridge
Imperial DR over Dellwood CR is a prestressed concrete box beam or girders - multiple carrying Imperial DR over Dellwood CR in St. Louis County, Missouri. It was built in 1939 and reconstructed in 1984, so it is 86 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 5 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 1,278 vehicles a day, roughly 3% of them trucks, projected to reach 1,725 by 2044. The structure is 25 ft (7.6 m) long and 24 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Imperial DR over Dellwood CR built?
It was built in 1939, making it 86 years old in 2025. It was reconstructed in 1984.
What condition is Imperial DR over Dellwood CR 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 February 2024.
How much traffic does Imperial DR over Dellwood CR carry?
About 1,278 vehicles per day (2024 count), of which roughly 3% are trucks.
How long is Imperial DR over Dellwood CR?
The structure is 25 ft (7.6 m) long with a longest span of 23 ft (7 m) and a deck 24 ft wide.
Who owns Imperial DR over Dellwood CR?
It is owned by the County Highway Agency.