Tyrrell RD over Austin Creek
FairPosted for loadShiawassee County, Michigan · 3 MI N & .3 MI E of Perry · Structure no. 000000000009827
- Built
- 1965
- 60 years old
- Condition
- Fair
- inspected March 2024
- Type
- Culvert
- Wood or Timber
- Length
- 30 ft
- 3 main spans
- Daily traffic
- 271
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
Tyrrell RD over Austin Creek is a wood or timber culvert carrying Tyrrell RD over Austin Creek in Shiawassee County, Michigan. It was built in 1965, so it is 60 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.
It carries about 271 vehicles a day, roughly 5% of them trucks, projected to reach 403 by 2043. The structure is 30 ft (9.1 m) long. If it were closed, the detour would be 6.8 mi (11 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 |
|---|---|---|
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Tyrrell RD over Austin Creek built?
It was built in 1965, making it 60 years old in 2025.
What condition is Tyrrell RD over Austin Creek 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 March 2024.
How much traffic does Tyrrell RD over Austin Creek carry?
About 271 vehicles per day (2023 count), of which roughly 5% are trucks.
How long is Tyrrell RD over Austin Creek?
The structure is 30 ft (9.1 m) long with a longest span of 7 ft (2.1 m).
Who owns Tyrrell RD over Austin Creek?
It is owned by the County Highway Agency.