FM over Dd
FairPalo Alto County, Iowa · 096341902 · Structure no. 000000000270050
- Built
- 1965
- 60 years old
- Condition
- Fair
- inspected May 2024
- Type
- Slab
- Concrete Continuous
- Length
- 78 ft
- 3 main spans
- Daily traffic
- 300
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
FM over Dd is a concrete continuous slab carrying FM over Dd in Palo Alto County, Iowa. It was built in 1965, so it is 60 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 300 vehicles a day, roughly 30% of them trucks, projected to reach 300 by 2044. The structure is 78 ft (23.8 m) long and 30 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was FM over Dd built?
It was built in 1965, making it 60 years old in 2025.
What condition is FM over Dd 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 May 2024.
How much traffic does FM over Dd carry?
About 300 vehicles per day (2022 count), of which roughly 30% are trucks.
How long is FM over Dd?
The structure is 78 ft (23.8 m) long with a longest span of 29 ft (8.8 m) and a deck 30 ft wide.
Who owns FM over Dd?
It is owned by the County Highway Agency.