72nd Ave over Black River
FairOttawa County, Michigan · Section 9 Zeeland Twp · Structure no. 000000000008934
- Built
- 1976
- 49 years old
- Condition
- Fair
- inspected October 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 61 ft
- 1 main span
- Daily traffic
- 200
- 2020 count
- Owner
- County
- County Highway Agency
About this bridge
72nd Ave over Black River is a prestressed concrete box beam or girders - multiple carrying 72nd Ave over Black River in Ottawa County, Michigan. It was built in 1976, so it is 49 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 5 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 200 vehicles a day, roughly 5% of them trucks, projected to reach 360 by 2040. The structure is 61 ft (18.6 m) long and 36 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 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 7 Good | Some minor problems. |
| 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 72nd Ave over Black River built?
It was built in 1976, making it 49 years old in 2025.
What condition is 72nd Ave over Black 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 October 2024.
How much traffic does 72nd Ave over Black River carry?
About 200 vehicles per day (2020 count), of which roughly 5% are trucks.
How long is 72nd Ave over Black River?
The structure is 61 ft (18.6 m) long with a longest span of 59 ft (17.9 m) and a deck 36 ft wide.
Who owns 72nd Ave over Black River?
It is owned by the County Highway Agency.