Rotunda Drive over M-39
GoodWayne County, Michigan · In Dearborn · Structure no. 000000000011683
- Built
- 1964
- 61 years old, rebuilt 2005
- Condition
- Good
- inspected May 2024
- Type
- Box Beam or Girders - Single or Spread
- Prestressed Concrete
- Length
- 180 ft
- 4 main spans
- Daily traffic
- 30,000
- 2005 count
- Owner
- State
- State Highway Agency
About this bridge
Rotunda Drive over M-39 is a prestressed concrete box beam or girders - single or spread carrying Rotunda Drive over M-39 in Wayne County, Michigan. It was built in 1964 and reconstructed in 2005, 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 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 30,000 vehicles a day, roughly 6% of them trucks, projected to reach 30,200 by 2026. The structure is 180 ft (54.8 m) long and 140 ft wide.
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 Rotunda Drive over M-39 built?
It was built in 1964, making it 61 years old in 2025. It was reconstructed in 2005.
What condition is Rotunda Drive over M-39 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 May 2024.
How much traffic does Rotunda Drive over M-39 carry?
About 30,000 vehicles per day (2005 count), of which roughly 6% are trucks.
How long is Rotunda Drive over M-39?
The structure is 180 ft (54.8 m) long with a longest span of 55 ft (16.7 m) and a deck 140 ft wide.
Who owns Rotunda Drive over M-39?
It is owned by the State Highway Agency.