Austin RD over Big CR
FairLinn County, Iowa · 084050601 · Structure no. 000000000221191
- Built
- 1977
- 48 years old
- Condition
- Fair
- inspected September 2024
- Type
- Slab
- Wood or Timber
- Length
- 21 ft
- 1 main span
- Daily traffic
- 49
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
Austin RD over Big CR is a wood or timber slab carrying Austin RD over Big CR in Linn County, Iowa. It was built in 1977, so it is 48 years old, older than the Iowa average of 45.5 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 49 vehicles a day, roughly 39% of them trucks, projected to reach 49 by 2044. The structure is 21 ft (6.4 m) long and 26 ft wide.
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 | 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 Austin RD over Big CR built?
It was built in 1977, making it 48 years old in 2025.
What condition is Austin RD over Big CR 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 September 2024.
How much traffic does Austin RD over Big CR carry?
About 49 vehicles per day (2022 count), of which roughly 39% are trucks.
How long is Austin RD over Big CR?
The structure is 21 ft (6.4 m) long with a longest span of 20 ft (6.1 m) and a deck 26 ft wide.
Who owns Austin RD over Big CR?
It is owned by the County Highway Agency.