Mill Street over Pine River
FairGratiot County, Michigan · City of ST Louis · Structure no. 000000000003256
- Built
- 1979
- 46 years old
- Condition
- Fair
- inspected June 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 174 ft
- 3 main spans
- Daily traffic
- 2,700
- 2014 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Mill Street over Pine River is a prestressed concrete box beam or girders - multiple carrying Mill Street over Pine River in Gratiot County, Michigan. It was built in 1979, so it is 46 years old, younger than the Michigan average of 48.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 2,700 vehicles a day, roughly 5% of them trucks, projected to reach 4,875 by 2034. The structure is 174 ft (53 m) long and 38 ft wide. If it were closed, the detour would be 1.9 mi (3 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 8 Very Good | No problems noted. |
| 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 Mill Street over Pine River built?
It was built in 1979, making it 46 years old in 2025.
What condition is Mill Street over Pine River in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2024.
How much traffic does Mill Street over Pine River carry?
About 2,700 vehicles per day (2014 count), of which roughly 5% are trucks.
How long is Mill Street over Pine River?
The structure is 174 ft (53 m) long with a longest span of 57 ft (17.4 m) and a deck 38 ft wide.
Who owns Mill Street over Pine River?
It is owned by the City or Municipal Highway Agency.