Rocky Mound DR over Dry Br
GoodSt. Charles County, Missouri · S 24 T 47 N R 1 E · Structure no. 28359
- Built
- 1999
- 26 years old
- Condition
- Good
- inspected January 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 160 ft
- 3 main spans
- Daily traffic
- 800
- 2024 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Rocky Mound DR over Dry Br is a prestressed concrete continuous stringer/multi-beam or girder carrying Rocky Mound DR over Dry Br in St. Charles 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 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 800 vehicles a day, roughly 10% of them trucks, projected to reach 1,240 by 2044. The structure is 160 ft (48.8 m) long and 34 ft wide. If it were closed, the detour would be 0.6 mi (1 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. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Rocky Mound DR over Dry Br built?
It was built in 1999, making it 26 years old in 2025.
What condition is Rocky Mound DR over Dry Br 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 January 2024.
How much traffic does Rocky Mound DR over Dry Br carry?
About 800 vehicles per day (2024 count), of which roughly 10% are trucks.
How long is Rocky Mound DR over Dry Br?
The structure is 160 ft (48.8 m) long with a longest span of 62 ft (18.9 m) and a deck 34 ft wide.
Who owns Rocky Mound DR over Dry Br?
It is owned by the City or Municipal Highway Agency.