Martin Road over Little Thornapple River
PoorBarry County, Michigan · 300 Ft S of Jordan RD · Structure no. 000000000013950
- Built
- 1970
- 55 years old
- Condition
- Poor
- inspected July 2024
- Type
- Culvert
- Steel
- Length
- 21 ft
- 3 main spans
- Daily traffic
- 50
- 2017 count
- Owner
- County
- County Highway Agency
About this bridge
Martin Road over Little Thornapple River is a steel culvert carrying Martin Road over Little Thornapple River in Barry County, Michigan. It was built in 1970, so it is 55 years old, older than the Michigan average of 48.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 50 vehicles a day, roughly 2% of them trucks, projected to reach 100 by 2037. The structure is 21 ft (6.3 m) long. 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 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
| Culvert | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Martin Road over Little Thornapple River built?
It was built in 1970, making it 55 years old in 2025.
What condition is Martin Road over Little Thornapple River in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in July 2024.
How much traffic does Martin Road over Little Thornapple River carry?
About 50 vehicles per day (2017 count), of which roughly 2% are trucks.
How long is Martin Road over Little Thornapple River?
The structure is 21 ft (6.3 m) long with a longest span of 6 ft (1.8 m).
Who owns Martin Road over Little Thornapple River?
It is owned by the County Highway Agency.