FM 270th ST over Willow Creek
FairHarrison County, Iowa · 079433101 · Structure no. 000000000178201
- Built
- 1990
- 35 years old
- Condition
- Fair
- inspected December 2024
- Type
- Slab
- Concrete Continuous
- Length
- 128 ft
- 3 main spans
- Daily traffic
- 379
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
FM 270th ST over Willow Creek is a concrete continuous slab carrying FM 270th ST over Willow Creek in Harrison County, Iowa. It was built in 1990, so it is 35 years old, younger 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 379 vehicles a day, roughly 23% of them trucks, projected to reach 379 by 2044. The structure is 128 ft (39 m) long and 27 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 | 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was FM 270th ST over Willow Creek built?
It was built in 1990, making it 35 years old in 2025.
What condition is FM 270th ST over Willow 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 December 2024.
How much traffic does FM 270th ST over Willow Creek carry?
About 379 vehicles per day (2022 count), of which roughly 23% are trucks.
How long is FM 270th ST over Willow Creek?
The structure is 128 ft (39 m) long with a longest span of 49 ft (14.9 m) and a deck 27 ft wide.
Who owns FM 270th ST over Willow Creek?
It is owned by the County Highway Agency.