Salt River RD over Dardenne CR
GoodSt. Charles County, Missouri · S 1786 T 47 N R 4 E · Structure no. 33915
- Built
- 2011
- 14 years old
- Condition
- Good
- inspected January 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 175 ft
- 2 main spans
- Daily traffic
- 5,000
- 2024 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Salt River RD over Dardenne CR is a prestressed concrete continuous stringer/multi-beam or girder carrying Salt River RD over Dardenne CR in St. Charles County, Missouri. It was built in 2011, so it is 14 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 5,000 vehicles a day, roughly 5% of them trucks, projected to reach 7,750 by 2044. The structure is 175 ft (53.3 m) long and 65 ft wide. If it were closed, the detour would be 1.9 mi (3 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 Salt River RD over Dardenne CR built?
It was built in 2011, making it 14 years old in 2025.
What condition is Salt River RD over Dardenne CR 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 Salt River RD over Dardenne CR carry?
About 5,000 vehicles per day (2024 count), of which roughly 5% are trucks.
How long is Salt River RD over Dardenne CR?
The structure is 175 ft (53.3 m) long with a longest span of 85 ft (25.9 m) and a deck 65 ft wide.
Who owns Salt River RD over Dardenne CR?
It is owned by the City or Municipal Highway Agency.