FM over Little Sioux River
FairDickinson County, Iowa · 100373202 · Structure no. 000000000145380
- Built
- 1964
- 61 years old
- Condition
- Fair
- inspected April 2023
- Type
- Slab
- Concrete Continuous
- Length
- 102 ft
- 3 main spans
- Daily traffic
- 112
- 2021 count
- Owner
- County
- County Highway Agency
About this bridge
FM over Little Sioux River is a concrete continuous slab carrying FM over Little Sioux River in Dickinson County, Iowa. It was built in 1964, so it is 61 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 112 vehicles a day, projected to reach 112 by 2043. The structure is 102 ft (31.1 m) long and 30 ft wide. If it were closed, the detour would be 3.1 mi (5 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was FM over Little Sioux River built?
It was built in 1964, making it 61 years old in 2025.
What condition is FM over Little Sioux River 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 April 2023.
How much traffic does FM over Little Sioux River carry?
About 112 vehicles per day (2021 count).
How long is FM over Little Sioux River?
The structure is 102 ft (31.1 m) long with a longest span of 39 ft (11.9 m) and a deck 30 ft wide.
Who owns FM over Little Sioux River?
It is owned by the County Highway Agency.