28 Mile Road over Salt River
GoodMacomb County, Michigan · 0.4 MI West of Gratiot · Structure no. 000000000006329
- Built
- 2003
- 22 years old
- Condition
- Good
- inspected July 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 57 ft
- 1 main span
- Daily traffic
- 130
- 2009 count
- Owner
- County
- County Highway Agency
About this bridge
28 Mile Road over Salt River is a prestressed concrete box beam or girders - multiple carrying 28 Mile Road over Salt River in Macomb County, Michigan. It was built in 2003, so it is 22 years old, younger 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 130 vehicles a day, roughly 2% of them trucks, projected to reach 235 by 2029. The structure is 57 ft (17.4 m) long and 41 ft wide. If it were closed, the detour would be 3.7 mi (6 km).
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 |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 28 Mile Road over Salt River built?
It was built in 2003, making it 22 years old in 2025.
What condition is 28 Mile Road over Salt 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 July 2023.
How much traffic does 28 Mile Road over Salt River carry?
About 130 vehicles per day (2009 count), of which roughly 2% are trucks.
How long is 28 Mile Road over Salt River?
The structure is 57 ft (17.4 m) long with a longest span of 53 ft (16.3 m) and a deck 41 ft wide.
Who owns 28 Mile Road over Salt River?
It is owned by the County Highway Agency.