I-75 over S Br Big Munuscong River
GoodChippewa County, Michigan · 0.1 MI N of Mile Post 375 · Structure no. 000000000001573
- Built
- 1962
- 63 years old
- Condition
- Good
- inspected August 2024
- Type
- Culvert
- Steel
- Length
- 32 ft
- 3 main spans
- Daily traffic
- 4,092
- 2015 count
- Owner
- State
- State Highway Agency
About this bridge
I-75 over S Br Big Munuscong River is a steel culvert carrying I-75 over S Br Big Munuscong River in Chippewa County, Michigan. It was built in 1962, so it is 63 years old, older than the Michigan average of 48.3 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 4,092 vehicles a day, roughly 10% of them trucks, projected to reach 4,706 by 2035. The structure is 32 ft (9.9 m) long.
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 |
|---|---|---|
| Channel and channel protection | 7 Good | Some minor problems. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-75 over S Br Big Munuscong River built?
It was built in 1962, making it 63 years old in 2025.
What condition is I-75 over S Br Big Munuscong 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 August 2024.
How much traffic does I-75 over S Br Big Munuscong River carry?
About 4,092 vehicles per day (2015 count), of which roughly 10% are trucks.
How long is I-75 over S Br Big Munuscong River?
The structure is 32 ft (9.9 m) long with a longest span of 8 ft (2.5 m).
Who owns I-75 over S Br Big Munuscong River?
It is owned by the State Highway Agency.