T 551 over ST Louis River
GoodSt. Louis County, Minnesota · 0.6 MI E of JCT CR 341 · Structure no. 69531
- Built
- 1985
- 40 years old
- Condition
- Good
- inspected May 2024
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 147 ft
- 3 main spans
- Daily traffic
- 100
- 1985 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
T 551 over ST Louis River is a prestressed concrete tee beam carrying T 551 over ST Louis River in St. Louis County, Minnesota. It was built in 1985, so it is 40 years old, older than the Minnesota average of 38.5 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 100 vehicles a day, projected to reach 100 by 2029. The structure is 147 ft (44.7 m) long and 40 ft wide. If it were closed, the detour would be 8.7 mi (14 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 T 551 over ST Louis River built?
It was built in 1985, making it 40 years old in 2025.
What condition is T 551 over ST Louis River 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 May 2024.
How much traffic does T 551 over ST Louis River carry?
About 100 vehicles per day (1985 count).
How long is T 551 over ST Louis River?
The structure is 147 ft (44.7 m) long with a longest span of 48 ft (14.7 m) and a deck 40 ft wide.
Who owns T 551 over ST Louis River?
It is owned by the Town or Township Highway Agency.