Iron Bridge Road over Sturgeon River
PoorPosted for loadCharlevoix County, Michigan · 10 MI East of Boyne Falls · Structure no. 000000000001484
- Built
- 1900
- 125 years old
- Condition
- Poor
- inspected October 2024
- Type
- Truss - Thru
- Steel
- Length
- 41 ft
- 1 main span
- Daily traffic
- 3
- 2001 count
- Owner
- County
- County Highway Agency
About this bridge
Iron Bridge Road over Sturgeon River is a steel truss - thru carrying Iron Bridge Road over Sturgeon River in Charlevoix County, Michigan. It was built in 1900, 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 poor condition with a lowest component rating of 2 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. Its operating status is: posted for load restriction.
It carries about 3 vehicles a day, projected to reach 3 by 2021. The structure is 41 ft (12.5 m) long and 16 ft wide. If it were closed, the detour would be 3.7 mi (6 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 |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 2 Critical | Advanced deterioration of primary structural elements. Bridge may be closed until corrective action is taken. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Iron Bridge Road over Sturgeon River built?
It was built in 1900, making it 125 years old in 2025.
What condition is Iron Bridge Road over Sturgeon 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 October 2024.
How much traffic does Iron Bridge Road over Sturgeon River carry?
About 3 vehicles per day (2001 count).
How long is Iron Bridge Road over Sturgeon River?
The structure is 41 ft (12.5 m) long with a longest span of 40 ft (12.2 m) and a deck 16 ft wide.
Who owns Iron Bridge Road over Sturgeon River?
It is owned by the County Highway Agency.