4th Avenue over Iron River
GoodPosted for loadIron County, Michigan · 1600 Ft N of US-2 · Structure no. 000000000004220
- Built
- 1993
- 32 years old
- Condition
- Good
- inspected September 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 60 ft
- 1 main span
- Daily traffic
- 600
- 1990 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
4th Avenue over Iron River is a prestressed concrete box beam or girders - multiple carrying 4th Avenue over Iron River in Iron County, Michigan. It was built in 1993, so it is 32 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. Its operating status is: posted for load restriction.
It carries about 600 vehicles a day, roughly 15% of them trucks, projected to reach 800 by 2010. The structure is 60 ft (18.2 m) long and 50 ft wide. If it were closed, the detour would be 1.2 mi (2 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 |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| 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 4th Avenue over Iron River built?
It was built in 1993, making it 32 years old in 2025.
What condition is 4th Avenue over Iron 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 September 2024.
How much traffic does 4th Avenue over Iron River carry?
About 600 vehicles per day (1990 count), of which roughly 15% are trucks.
How long is 4th Avenue over Iron River?
The structure is 60 ft (18.2 m) long with a longest span of 56 ft (17 m) and a deck 50 ft wide.
Who owns 4th Avenue over Iron River?
It is owned by the City or Municipal Highway Agency.