Allison Road over Saline River
PoorPosted for loadMonroe County, Michigan · 0.2 MI W of Plank Road · Structure no. 000000000007372
- Built
- 1961
- 64 years old
- Condition
- Poor
- inspected October 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 120 ft
- 3 main spans
- Daily traffic
- 100
- 2016 count
- Owner
- County
- County Highway Agency
About this bridge
Allison Road over Saline River is a prestressed concrete box beam or girders - multiple carrying Allison Road over Saline River in Monroe County, Michigan. It was built in 1961, so it is 64 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 100 vehicles a day, roughly 27% of them trucks, projected to reach 115 by 2036. The structure is 120 ft (36.6 m) long and 24 ft wide. If it were closed, the detour would be 3.1 mi (5 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Channel and channel protection | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Allison Road over Saline River built?
It was built in 1961, making it 64 years old in 2025.
What condition is Allison Road over Saline 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 Allison Road over Saline River carry?
About 100 vehicles per day (2016 count), of which roughly 27% are trucks.
How long is Allison Road over Saline River?
The structure is 120 ft (36.6 m) long with a longest span of 37 ft (11.4 m) and a deck 24 ft wide.
Who owns Allison Road over Saline River?
It is owned by the County Highway Agency.