FM over Dd 81
GoodPalo Alto County, Iowa · 094311705 · Structure no. 000000000268701
- Built
- 1994
- 31 years old
- Condition
- Good
- inspected July 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 246 ft
- 3 main spans
- Daily traffic
- 669
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
FM over Dd 81 is a prestressed concrete stringer/multi-beam or girder carrying FM over Dd 81 in Palo Alto County, Iowa. It was built in 1994, so it is 31 years old, younger than the Iowa average of 45.5 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 669 vehicles a day, roughly 16% of them trucks, projected to reach 669 by 2043. The structure is 246 ft (75 m) long and 33 ft wide. If it were closed, the detour would be 5 mi (8 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| 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 81 built?
It was built in 1994, making it 31 years old in 2025.
What condition is FM over Dd 81 in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2023.
How much traffic does FM over Dd 81 carry?
About 669 vehicles per day (2022 count), of which roughly 16% are trucks.
How long is FM over Dd 81?
The structure is 246 ft (75 m) long with a longest span of 82 ft (25 m) and a deck 33 ft wide.
Who owns FM over Dd 81?
It is owned by the County Highway Agency.