US-31 over Manistee River
FairManistee County, Michigan · In Manistee · Structure no. 000000000006436
- Built
- 1933
- 92 years old, rebuilt 2023
- Condition
- Fair
- inspected September 2024
- Type
- Movable - Bascule
- Steel
- Length
- 316 ft
- 1 main span
- Daily traffic
- 17,789
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US-31 over Manistee River is a steel movable - bascule carrying US-31 over Manistee River in Manistee County, Michigan. It was built in 1933 and reconstructed in 2023, so it is 92 years old, older than the Michigan average of 48.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 17,789 vehicles a day, roughly 6% of them trucks, projected to reach 20,457 by 2043. The structure is 316 ft (96.3 m) long and 54 ft wide. If it were closed, the detour would be 6.2 mi (10 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US-31 over Manistee River built?
It was built in 1933, making it 92 years old in 2025. It was reconstructed in 2023.
What condition is US-31 over Manistee River in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in September 2024.
How much traffic does US-31 over Manistee River carry?
About 17,789 vehicles per day (2023 count), of which roughly 6% are trucks.
How long is US-31 over Manistee River?
The structure is 316 ft (96.3 m) long with a longest span of 133 ft (40.5 m) and a deck 54 ft wide.
Who owns US-31 over Manistee River?
It is owned by the State Highway Agency.