I-475 SB over Maple RD
FairGenesee County, Michigan · 1.5 MI S of Flint · Structure no. 000000000002650
- Built
- 1971
- 54 years old, rebuilt 2009
- Condition
- Fair
- inspected June 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 128 ft
- 3 main spans
- Daily traffic
- 20,200
- 2007 count
- Owner
- State
- State Highway Agency
About this bridge
I-475 SB over Maple RD is a prestressed concrete stringer/multi-beam or girder carrying I-475 SB over Maple RD in Genesee County, Michigan. It was built in 1971 and reconstructed in 2009, so it is 54 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 20,200 vehicles a day, roughly 5% of them trucks, projected to reach 26,900 by 2030. The structure is 128 ft (38.9 m) long and 48 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 | 7 Good | Some minor problems. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-475 SB over Maple RD built?
It was built in 1971, making it 54 years old in 2025. It was reconstructed in 2009.
What condition is I-475 SB over Maple RD 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 I-475 SB over Maple RD carry?
About 20,200 vehicles per day (2007 count), of which roughly 5% are trucks.
How long is I-475 SB over Maple RD?
The structure is 128 ft (38.9 m) long with a longest span of 63 ft (19.1 m) and a deck 48 ft wide.
Who owns I-475 SB over Maple RD?
It is owned by the State Highway Agency.