Hannan Road over Lower Rouge River
PoorWayne County, Michigan · Canton/Wayne N/Michigan · Structure no. 000000000012137
- Built
- 1955
- 70 years old
- Condition
- Poor
- inspected October 2024
- Type
- Slab
- Concrete Continuous
- Length
- 91 ft
- 3 main spans
- Daily traffic
- 3,368
- 1996 count
- Owner
- County
- County Highway Agency
About this bridge
Hannan Road over Lower Rouge River is a concrete continuous slab carrying Hannan Road over Lower Rouge River in Wayne County, Michigan. It was built in 1955, so it is 70 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.
It carries about 3,368 vehicles a day, roughly 2% of them trucks, projected to reach 4,712 by 2015. The structure is 91 ft (27.7 m) long and 40 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Hannan Road over Lower Rouge River built?
It was built in 1955, making it 70 years old in 2025.
What condition is Hannan Road over Lower Rouge River 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 Hannan Road over Lower Rouge River carry?
About 3,368 vehicles per day (1996 count), of which roughly 2% are trucks.
How long is Hannan Road over Lower Rouge River?
The structure is 91 ft (27.7 m) long with a longest span of 35 ft (10.6 m) and a deck 40 ft wide.
Who owns Hannan Road over Lower Rouge River?
It is owned by the County Highway Agency.