US-31 NB over US-31 Br (monroe Rd)
GoodOceana County, Michigan · 4.0 MI N of Hart · Structure no. 000000000008360
- Built
- 1977
- 48 years old
- Condition
- Good
- inspected January 2025
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 105 ft
- 1 main span
- Daily traffic
- 4,413
- 2007 count
- Owner
- State
- State Highway Agency
About this bridge
US-31 NB over US-31 Br (monroe Rd) is a steel stringer/multi-beam or girder carrying US-31 NB over US-31 Br (monroe Rd) in Oceana County, Michigan. It was built in 1977, so it is 48 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.
It carries about 4,413 vehicles a day, roughly 10% of them trucks, projected to reach 5,796 by 2018. The structure is 105 ft (32 m) long and 44 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. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US-31 NB over US-31 Br (monroe Rd) built?
It was built in 1977, making it 48 years old in 2025.
What condition is US-31 NB over US-31 Br (monroe Rd) 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 January 2025.
How much traffic does US-31 NB over US-31 Br (monroe Rd) carry?
About 4,413 vehicles per day (2007 count), of which roughly 10% are trucks.
How long is US-31 NB over US-31 Br (monroe Rd)?
The structure is 105 ft (32 m) long with a longest span of 105 ft (32 m) and a deck 44 ft wide.
Who owns US-31 NB over US-31 Br (monroe Rd)?
It is owned by the State Highway Agency.