US-31|M-37|M-72|GR over Boardman River
GoodGrand Traverse County, Michigan · In Traverse City · Structure no. 000000000003049
- Built
- 1951
- 74 years old
- Condition
- Good
- inspected June 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 78 ft
- 1 main span
- Daily traffic
- 26,650
- 2015 count
- Owner
- State
- State Highway Agency
About this bridge
US-31|M-37|M-72|GR over Boardman River is a steel stringer/multi-beam or girder carrying US-31|M-37|M-72|GR over Boardman River in Grand Traverse County, Michigan. It was built in 1951, so it is 74 years old, older 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.
It carries about 26,650 vehicles a day, roughly 2% of them trucks, projected to reach 29,750 by 2037. The structure is 78 ft (23.8 m) long and 82 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US-31|M-37|M-72|GR over Boardman River built?
It was built in 1951, making it 74 years old in 2025.
What condition is US-31|M-37|M-72|GR over Boardman 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 June 2024.
How much traffic does US-31|M-37|M-72|GR over Boardman River carry?
About 26,650 vehicles per day (2015 count), of which roughly 2% are trucks.
How long is US-31|M-37|M-72|GR over Boardman River?
The structure is 78 ft (23.8 m) long with a longest span of 76 ft (23.1 m) and a deck 82 ft wide.
Who owns US-31|M-37|M-72|GR over Boardman River?
It is owned by the State Highway Agency.