Dunham Road over Miller Drain
PoorPosted for loadMacomb County, Michigan · 0.1 MI W of Heydenreich · Structure no. 000000000006318
- Built
- 1964
- 61 years old
- Condition
- Poor
- inspected October 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 27 ft
- 1 main span
- Daily traffic
- 7,630
- 2024 count
- Owner
- County
- County Highway Agency
About this bridge
Dunham Road over Miller Drain is a steel stringer/multi-beam or girder carrying Dunham Road over Miller Drain in Macomb County, Michigan. It was built in 1964, so it is 61 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 load restriction.
It carries about 7,630 vehicles a day, roughly 3% of them trucks, projected to reach 8,000 by 2044. The structure is 27 ft (8.2 m) long and 33 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Dunham Road over Miller Drain built?
It was built in 1964, making it 61 years old in 2025.
What condition is Dunham Road over Miller Drain 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 Dunham Road over Miller Drain carry?
About 7,630 vehicles per day (2024 count), of which roughly 3% are trucks.
How long is Dunham Road over Miller Drain?
The structure is 27 ft (8.2 m) long with a longest span of 26 ft (7.9 m) and a deck 33 ft wide.
Who owns Dunham Road over Miller Drain?
It is owned by the County Highway Agency.