Downington Road over Black River I/C Drain
FairSanilac County, Michigan · Sec 36 Wheatland Twp · Structure no. 000000000009658
- Built
- 1986
- 39 years old
- Condition
- Fair
- inspected May 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 75 ft
- 1 main span
- Daily traffic
- 300
- 2010 count
- Owner
- County
- County Highway Agency
About this bridge
Downington Road over Black River I/C Drain is a prestressed concrete box beam or girders - multiple carrying Downington Road over Black River I/C Drain in Sanilac County, Michigan. It was built in 1986, so it is 39 years old, younger 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 6 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 300 vehicles a day, roughly 10% of them trucks, projected to reach 540 by 2030. The structure is 75 ft (22.9 m) long and 31 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 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
| 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 Downington Road over Black River I/C Drain built?
It was built in 1986, making it 39 years old in 2025.
What condition is Downington Road over Black River I/C Drain 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 May 2024.
How much traffic does Downington Road over Black River I/C Drain carry?
About 300 vehicles per day (2010 count), of which roughly 10% are trucks.
How long is Downington Road over Black River I/C Drain?
The structure is 75 ft (22.9 m) long with a longest span of 73 ft (22.3 m) and a deck 31 ft wide.
Who owns Downington Road over Black River I/C Drain?
It is owned by the County Highway Agency.