56th Street over M Br Black River
GoodAllegan County, Michigan · Just N of 104th Ave · Structure no. 000000000000193
- Built
- 2018
- 7 years old
- Condition
- Good
- inspected September 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 50 ft
- 1 main span
- Daily traffic
- 1,565
- 2017 count
- Owner
- County
- County Highway Agency
About this bridge
56th Street over M Br Black River is a prestressed concrete stringer/multi-beam or girder carrying 56th Street over M Br Black River in Allegan County, Michigan. It was built in 2018, so it is 7 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 1,565 vehicles a day, roughly 7% of them trucks, projected to reach 2,110 by 2037. The structure is 50 ft (15.2 m) long and 43 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 | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| 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 56th Street over M Br Black River built?
It was built in 2018, making it 7 years old in 2025.
What condition is 56th Street over M Br Black 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 September 2023.
How much traffic does 56th Street over M Br Black River carry?
About 1,565 vehicles per day (2017 count), of which roughly 7% are trucks.
How long is 56th Street over M Br Black River?
The structure is 50 ft (15.2 m) long with a longest span of 48 ft (14.5 m) and a deck 43 ft wide.
Who owns 56th Street over M Br Black River?
It is owned by the County Highway Agency.