Birdie Hills RD over Trib of Dardenne C
FairSt. Charles County, Missouri · S 739 T 46 N R 3 E · Structure no. 31560
- Built
- 2005
- 20 years old
- Condition
- Fair
- inspected February 2024
- Type
- Culvert
- Concrete
- Length
- 22 ft
- 2 main spans
- Daily traffic
- 14,000
- 2024 count
- Owner
- County
- County Highway Agency
About this bridge
Birdie Hills RD over Trib of Dardenne C is a concrete culvert carrying Birdie Hills RD over Trib of Dardenne C in St. Charles County, Missouri. It was built in 2005, so it is 20 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 14,000 vehicles a day, roughly 2% of them trucks, projected to reach 21,700 by 2044. The structure is 22 ft (6.8 m) long. If it were closed, the detour would be 1.2 mi (2 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 |
|---|---|---|
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Birdie Hills RD over Trib of Dardenne C built?
It was built in 2005, making it 20 years old in 2025.
What condition is Birdie Hills RD over Trib of Dardenne C 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 Birdie Hills RD over Trib of Dardenne C carry?
About 14,000 vehicles per day (2024 count), of which roughly 2% are trucks.
How long is Birdie Hills RD over Trib of Dardenne C?
The structure is 22 ft (6.8 m) long with a longest span of 11 ft (3.4 m).
Who owns Birdie Hills RD over Trib of Dardenne C?
It is owned by the County Highway Agency.