FM over Little Sioux River
PoorPosted for loadMonona County, Iowa · 085440205 · Structure no. 000000000251360
- Built
- 1925
- 100 years old, rebuilt 1962
- Condition
- Poor
- inspected May 2024
- Type
- Truss - Thru
- Steel
- Length
- 185 ft
- 1 main span
- Daily traffic
- 159
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
FM over Little Sioux River is a steel truss - thru carrying FM over Little Sioux River in Monona County, Iowa. It was built in 1925 and reconstructed in 1962, so it is 100 years old, older than the Iowa average of 45.5 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.
It carries about 159 vehicles a day, projected to reach 159 by 2044. The structure is 185 ft (56.4 m) long and 18 ft wide. If it were closed, the detour would be 8.1 mi (13 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| 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 1925, making it 100 years old in 2025. It was reconstructed in 1962.
What condition is FM over Little Sioux River in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in May 2024.
How much traffic does FM over Little Sioux River carry?
About 159 vehicles per day (2022 count).
How long is FM over Little Sioux River?
The structure is 185 ft (56.4 m) long with a longest span of 120 ft (36.6 m) and a deck 18 ft wide.
Who owns FM over Little Sioux River?
It is owned by the County Highway Agency.