M 58 over Stony Brook
PoorPosted for loadCass County, Minnesota · In Lake Shore · Structure no. L5920
- Built
- 1972
- 53 years old
- Condition
- Poor
- inspected September 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 42 ft
- 1 main span
- Daily traffic
- 50
- 2016 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
M 58 over Stony Brook is a steel stringer/multi-beam or girder carrying M 58 over Stony Brook in Cass County, Minnesota. It was built in 1972, so it is 53 years old, older than the Minnesota average of 38.5 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.
It carries about 50 vehicles a day, projected to reach 50 by 2034. The structure is 42 ft (12.8 m) long and 13 ft wide. If it were closed, the detour would be 5 mi (8 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was M 58 over Stony Brook built?
It was built in 1972, making it 53 years old in 2025.
What condition is M 58 over Stony Brook in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2024.
How much traffic does M 58 over Stony Brook carry?
About 50 vehicles per day (2016 count).
How long is M 58 over Stony Brook?
The structure is 42 ft (12.8 m) long with a longest span of 39 ft (11.9 m) and a deck 13 ft wide.
Who owns M 58 over Stony Brook?
It is owned by the City or Municipal Highway Agency.