Treatment Plant DR over Huron River
FairWashtenaw County, Michigan · 0.5 MI E US-23 · Structure no. 000000000011078
- Built
- 1934
- 91 years old, rebuilt 1985
- Condition
- Fair
- inspected October 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 117 ft
- 2 main spans
- Daily traffic
- 75
- 2002 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Treatment Plant DR over Huron River is a steel stringer/multi-beam or girder carrying Treatment Plant DR over Huron River in Washtenaw County, Michigan. It was built in 1934 and reconstructed in 1985, so it is 91 years old, older than the Michigan average of 48.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 75 vehicles a day, roughly 10% of them trucks, projected to reach 75 by 2022. The structure is 117 ft (35.7 m) long and 18 ft wide. If it were closed, the detour would be 124.9 mi (201 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Treatment Plant DR over Huron River built?
It was built in 1934, making it 91 years old in 2025. It was reconstructed in 1985.
What condition is Treatment Plant DR over Huron River in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2024.
How much traffic does Treatment Plant DR over Huron River carry?
About 75 vehicles per day (2002 count), of which roughly 10% are trucks.
How long is Treatment Plant DR over Huron River?
The structure is 117 ft (35.7 m) long with a longest span of 59 ft (18 m) and a deck 18 ft wide.
Who owns Treatment Plant DR over Huron River?
It is owned by the City or Municipal Highway Agency.