Usfs RTE 3445 over Carp River
PoorPosted for loadMackinac County, Michigan · 0.1 MI W H63 · Structure no. 091005000001069
- Built
- 1962
- 63 years old
- Condition
- Poor
- inspected October 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 91 ft
- 5 main spans
- Daily traffic
- 15
- 1998 count
- Owner
- Federal
- U.S. Forest Service
About this bridge
Usfs RTE 3445 over Carp River is a steel stringer/multi-beam or girder carrying Usfs RTE 3445 over Carp River in Mackinac County, Michigan. It was built in 1962, so it is 63 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 4 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 other load-capacity restriction.
It carries about 15 vehicles a day, projected to reach 15 by 2015. The structure is 91 ft (27.6 m) long and 18 ft wide. If it were closed, the detour would be 98.2 mi (158 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Usfs RTE 3445 over Carp River built?
It was built in 1962, making it 63 years old in 2025.
What condition is Usfs RTE 3445 over Carp 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 Usfs RTE 3445 over Carp River carry?
About 15 vehicles per day (1998 count).
How long is Usfs RTE 3445 over Carp River?
The structure is 91 ft (27.6 m) long with a longest span of 19 ft (5.8 m) and a deck 18 ft wide.
Who owns Usfs RTE 3445 over Carp River?
It is owned by the U.S. Forest Service.