Island Harbor Dr. over Canal
GoodSt. Charles County, Missouri · S 1000 T 47 N R 5 E · Structure no. 34639
- Built
- 2009
- 16 years old
- Condition
- Good
- inspected January 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 50 ft
- 1 main span
- Daily traffic
- 1,200
- 2024 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Island Harbor Dr. over Canal is a steel stringer/multi-beam or girder carrying Island Harbor Dr. over Canal in St. Charles County, Missouri. It was built in 2009, so it is 16 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 1,200 vehicles a day, roughly 2% of them trucks, projected to reach 1,860 by 2044. The structure is 50 ft (15.2 m) long and 36 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 8 Very Good | No problems noted. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Island Harbor Dr. over Canal built?
It was built in 2009, making it 16 years old in 2025.
What condition is Island Harbor Dr. over Canal 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 Island Harbor Dr. over Canal carry?
About 1,200 vehicles per day (2024 count), of which roughly 2% are trucks.
How long is Island Harbor Dr. over Canal?
The structure is 50 ft (15.2 m) long with a longest span of 49 ft (14.9 m) and a deck 36 ft wide.
Who owns Island Harbor Dr. over Canal?
It is owned by the City or Municipal Highway Agency.