Adams ST over Black River Tributary
PoorOttawa County, Michigan · 0.1 MI W of 80th Ave · Structure no. 000000000008807
- Built
- 1973
- 52 years old
- Condition
- Poor
- inspected October 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 30 ft
- 1 main span
- Daily traffic
- 6,930
- 2020 count
- Owner
- County
- County Highway Agency
About this bridge
Adams ST over Black River Tributary is a prestressed concrete box beam or girders - multiple carrying Adams ST over Black River Tributary in Ottawa County, Michigan. It was built in 1973, so it is 52 years old, older than the Michigan average of 48.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 6,930 vehicles a day, roughly 5% of them trucks, projected to reach 12,510 by 2040. The structure is 30 ft (9.1 m) long and 42 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 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Adams ST over Black River Tributary built?
It was built in 1973, making it 52 years old in 2025.
What condition is Adams ST over Black River Tributary in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.
How much traffic does Adams ST over Black River Tributary carry?
About 6,930 vehicles per day (2020 count), of which roughly 5% are trucks.
How long is Adams ST over Black River Tributary?
The structure is 30 ft (9.1 m) long with a longest span of 27 ft (8.2 m) and a deck 42 ft wide.
Who owns Adams ST over Black River Tributary?
It is owned by the County Highway Agency.