I-75 SB over Saganing River
FairBay County, Michigan · 3.5 MI NW of Pinconning · Structure no. 000000000000610
- Built
- 1968
- 57 years old, rebuilt 2011
- Condition
- Fair
- inspected May 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 82 ft
- 2 main spans
- Daily traffic
- 13,735
- 2007 count
- Owner
- State
- State Highway Agency
About this bridge
I-75 SB over Saganing River is a prestressed concrete stringer/multi-beam or girder carrying I-75 SB over Saganing River in Bay County, Michigan. It was built in 1968 and reconstructed in 2011, so it is 57 years old, older 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 13,735 vehicles a day, roughly 7% of them trucks, projected to reach 16,605 by 2030. The structure is 82 ft (24.9 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 7 Good | Some minor problems. |
| 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 I-75 SB over Saganing River built?
It was built in 1968, making it 57 years old in 2025. It was reconstructed in 2011.
What condition is I-75 SB over Saganing 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 May 2024.
How much traffic does I-75 SB over Saganing River carry?
About 13,735 vehicles per day (2007 count), of which roughly 7% are trucks.
How long is I-75 SB over Saganing River?
The structure is 82 ft (24.9 m) long with a longest span of 39 ft (11.9 m) and a deck 45 ft wide.
Who owns I-75 SB over Saganing River?
It is owned by the State Highway Agency.