Darr Road over Big Sable River
GoodMason County, Michigan · 11 MI N 1 MI E Scottville · Structure no. 000000000006672
- Built
- 2011
- 14 years old
- Condition
- Good
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 96 ft
- 1 main span
- Daily traffic
- 155
- 2010 count
- Owner
- County
- County Highway Agency
About this bridge
Darr Road over Big Sable River is a prestressed concrete stringer/multi-beam or girder carrying Darr Road over Big Sable River in Mason County, Michigan. It was built in 2011, so it is 14 years old, younger than the Michigan average of 48.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 155 vehicles a day, roughly 5% of them trucks, projected to reach 181 by 2030. The structure is 96 ft (29.3 m) long and 31 ft wide. If it were closed, the detour would be 6.2 mi (10 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Darr Road over Big Sable River built?
It was built in 2011, making it 14 years old in 2025.
What condition is Darr Road over Big Sable River in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2024.
How much traffic does Darr Road over Big Sable River carry?
About 155 vehicles per day (2010 count), of which roughly 5% are trucks.
How long is Darr Road over Big Sable River?
The structure is 96 ft (29.3 m) long with a longest span of 94 ft (28.5 m) and a deck 31 ft wide.
Who owns Darr Road over Big Sable River?
It is owned by the County Highway Agency.