Dunn RD over Br of Cowmire CR
FairPosted for loadSt. Louis County, Missouri · S 36 T 47 N R 6 E · Structure no. 15533
- Built
- 1962
- 63 years old
- Condition
- Fair
- inspected February 2024
- Type
- Slab
- Concrete
- Length
- 34 ft
- 1 main span
- Daily traffic
- 1,463
- 2024 count
- Owner
- County
- County Highway Agency
About this bridge
Dunn RD over Br of Cowmire CR is a concrete slab carrying Dunn RD over Br of Cowmire CR in St. Louis County, Missouri. It was built in 1962, 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 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 1,463 vehicles a day, roughly 2% of them trucks, projected to reach 1,975 by 2044. The structure is 34 ft (10.4 m) long and 25 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Dunn RD over Br of Cowmire CR built?
It was built in 1962, making it 63 years old in 2025.
What condition is Dunn RD over Br of Cowmire 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 Dunn RD over Br of Cowmire CR carry?
About 1,463 vehicles per day (2024 count), of which roughly 2% are trucks.
How long is Dunn RD over Br of Cowmire CR?
The structure is 34 ft (10.4 m) long with a longest span of 30 ft (9.1 m) and a deck 25 ft wide.
Who owns Dunn RD over Br of Cowmire CR?
It is owned by the County Highway Agency.