Blair Road over Bad River Drain
PoorGratiot County, Michigan · Sec 13-14 North Star Twp · Structure no. 000000000003233
- Built
- 1978
- 47 years old
- Condition
- Poor
- inspected July 2024
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 37 ft
- 1 main span
- Daily traffic
- 114
- 2004 count
- Owner
- County
- County Highway Agency
About this bridge
Blair Road over Bad River Drain is a prestressed concrete tee beam carrying Blair Road over Bad River Drain in Gratiot County, Michigan. It was built in 1978, so it is 47 years old, younger 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 114 vehicles a day, projected to reach 139 by 2024. The structure is 37 ft (11.2 m) long and 26 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 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Blair Road over Bad River Drain built?
It was built in 1978, making it 47 years old in 2025.
What condition is Blair Road over Bad River Drain 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 July 2024.
How much traffic does Blair Road over Bad River Drain carry?
About 114 vehicles per day (2004 count).
How long is Blair Road over Bad River Drain?
The structure is 37 ft (11.2 m) long with a longest span of 34 ft (10.3 m) and a deck 26 ft wide.
Who owns Blair Road over Bad River Drain?
It is owned by the County Highway Agency.