30 Mile Road over Tupper Brook Drain
GoodMacomb County, Michigan · 0.4 MI East of Hartway RD · Structure no. 000000000006378
- Built
- 1969
- 56 years old
- Condition
- Good
- inspected June 2024
- Type
- Culvert
- Steel
- Length
- 23 ft
- 2 main spans
- Daily traffic
- 238
- 2009 count
- Owner
- County
- County Highway Agency
About this bridge
30 Mile Road over Tupper Brook Drain is a steel culvert carrying 30 Mile Road over Tupper Brook Drain in Macomb County, Michigan. It was built in 1969, so it is 56 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 238 vehicles a day, roughly 2% of them trucks, projected to reach 353 by 2029. The structure is 23 ft (7 m) long. 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 |
|---|---|---|
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 30 Mile Road over Tupper Brook Drain built?
It was built in 1969, making it 56 years old in 2025.
What condition is 30 Mile Road over Tupper Brook Drain 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 30 Mile Road over Tupper Brook Drain carry?
About 238 vehicles per day (2009 count), of which roughly 2% are trucks.
How long is 30 Mile Road over Tupper Brook Drain?
The structure is 23 ft (7 m) long with a longest span of 10 ft (3 m).
Who owns 30 Mile Road over Tupper Brook Drain?
It is owned by the County Highway Agency.