Johnson Road over River Styx Drain
FairGratiot County, Michigan · Sec 20-29 Newark Twp · Structure no. 000000000003220
- Built
- 1900
- 125 years old, rebuilt 1971
- Condition
- Fair
- inspected July 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 23 ft
- 1 main span
- Daily traffic
- 111
- 2004 count
- Owner
- County
- County Highway Agency
About this bridge
Johnson Road over River Styx Drain is a prestressed concrete box beam or girders - multiple carrying Johnson Road over River Styx Drain in Gratiot County, Michigan. It was built in 1900 and reconstructed in 1971, so it is 125 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 111 vehicles a day, roughly 7% of them trucks, projected to reach 139 by 2024. The structure is 23 ft (7 m) long and 21 ft wide. If it were closed, the detour would be 3.1 mi (5 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 | 7 Good | Some minor problems. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 Johnson Road over River Styx Drain built?
It was built in 1900, making it 125 years old in 2025. It was reconstructed in 1971.
What condition is Johnson Road over River Styx Drain 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 July 2024.
How much traffic does Johnson Road over River Styx Drain carry?
About 111 vehicles per day (2004 count), of which roughly 7% are trucks.
How long is Johnson Road over River Styx Drain?
The structure is 23 ft (7 m) long with a longest span of 18 ft (5.4 m) and a deck 21 ft wide.
Who owns Johnson Road over River Styx Drain?
It is owned by the County Highway Agency.