Island HWY over Thornapple River
GoodEaton County, Michigan · 5 MI S of Potterville · Structure no. 000000000002342
- Built
- 2001
- 24 years old
- Condition
- Good
- inspected May 2023
- Type
- Culvert
- Steel
- Length
- 26 ft
- 1 main span
- Daily traffic
- 2,045
- 2012 count
- Owner
- County
- County Highway Agency
About this bridge
Island HWY over Thornapple River is a steel culvert carrying Island HWY over Thornapple River in Eaton County, Michigan. It was built in 2001, so it is 24 years old, younger than the Michigan average of 48.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 2,045 vehicles a day, projected to reach 2,515 by 2013. The structure is 26 ft (7.9 m) long. If it were closed, the detour would be 3.7 mi (6 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Channel and channel protection | 7 Good | Some minor problems. |
| Culvert | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Island HWY over Thornapple River built?
It was built in 2001, making it 24 years old in 2025.
What condition is Island HWY over Thornapple River in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2023.
How much traffic does Island HWY over Thornapple River carry?
About 2,045 vehicles per day (2012 count).
How long is Island HWY over Thornapple River?
The structure is 26 ft (7.9 m) long with a longest span of 25 ft (7.6 m).
Who owns Island HWY over Thornapple River?
It is owned by the County Highway Agency.