Johnson Road over Black River
FairGogebic County, Michigan · Sec 3-4 Erwin Twp · Structure no. 000000000002985
- Built
- 2000
- 25 years old
- Condition
- Fair
- inspected September 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 82 ft
- 1 main span
- Daily traffic
- 250
- 1998 count
- Owner
- County
- County Highway Agency
About this bridge
Johnson Road over Black River is a prestressed concrete box beam or girders - multiple carrying Johnson Road over Black River in Gogebic County, Michigan. It was built in 2000, so it is 25 years old, younger 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 250 vehicles a day, projected to reach 275 by 2016. The structure is 82 ft (25 m) long and 31 ft wide. If it were closed, the detour would be 11.2 mi (18 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 | 8 Very Good | No problems noted. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Johnson Road over Black River built?
It was built in 2000, making it 25 years old in 2025.
What condition is Johnson Road 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 September 2024.
How much traffic does Johnson Road over Black River carry?
About 250 vehicles per day (1998 count).
How long is Johnson Road over Black River?
The structure is 82 ft (25 m) long with a longest span of 78 ft (23.7 m) and a deck 31 ft wide.
Who owns Johnson Road over Black River?
It is owned by the County Highway Agency.