FM over Blue Grass Creek
FairAudubon County, Iowa · 080351601 · Structure no. 000000000068430
- Built
- 1962
- 63 years old
- Condition
- Fair
- inspected July 2024
- Type
- Slab
- Concrete Continuous
- Length
- 77 ft
- 3 main spans
- Daily traffic
- 210
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
FM over Blue Grass Creek is a concrete continuous slab carrying FM over Blue Grass Creek in Audubon County, Iowa. It was built in 1962, so it is 63 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 5 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 210 vehicles a day, roughly 10% of them trucks, projected to reach 210 by 2044. The structure is 77 ft (23.5 m) long and 30 ft wide. If it were closed, the detour would be 6.2 mi (10 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 FM over Blue Grass Creek built?
It was built in 1962, making it 63 years old in 2025.
What condition is FM over Blue Grass 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 July 2024.
How much traffic does FM over Blue Grass Creek carry?
About 210 vehicles per day (2022 count), of which roughly 10% are trucks.
How long is FM over Blue Grass Creek?
The structure is 77 ft (23.5 m) long with a longest span of 29 ft (8.8 m) and a deck 30 ft wide.
Who owns FM over Blue Grass Creek?
It is owned by the County Highway Agency.