Keewahdin Road over Howe Drain
FairSt. Clair County, Michigan · Sec. 17-20 Ft Gratiot Twp · Structure no. 000000000010069
- Built
- 1935
- 90 years old, rebuilt 1990
- Condition
- Fair
- inspected November 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 34 ft
- 1 main span
- Daily traffic
- 7,348
- 2007 count
- Owner
- County
- County Highway Agency
About this bridge
Keewahdin Road over Howe Drain is a prestressed concrete box beam or girders - multiple carrying Keewahdin Road over Howe Drain in St. Clair County, Michigan. It was built in 1935 and reconstructed in 1990, so it is 90 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 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 7,348 vehicles a day, roughly 5% of them trucks, projected to reach 10,485 by 2023. The structure is 34 ft (10.4 m) long and 48 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 | 7 Good | Some minor problems. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Keewahdin Road over Howe Drain built?
It was built in 1935, making it 90 years old in 2025. It was reconstructed in 1990.
What condition is Keewahdin Road over Howe 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 November 2023.
How much traffic does Keewahdin Road over Howe Drain carry?
About 7,348 vehicles per day (2007 count), of which roughly 5% are trucks.
How long is Keewahdin Road over Howe Drain?
The structure is 34 ft (10.4 m) long with a longest span of 23 ft (7 m) and a deck 48 ft wide.
Who owns Keewahdin Road over Howe Drain?
It is owned by the County Highway Agency.