FM over Winnebago River
PoorFloyd County, Iowa · 096183108 · Structure no. 000000000155750
- Built
- 1964
- 61 years old
- Condition
- Poor
- inspected March 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 219 ft
- 3 main spans
- Daily traffic
- 442
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
FM over Winnebago River is a prestressed concrete stringer/multi-beam or girder carrying FM over Winnebago River in Floyd 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 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.
It carries about 442 vehicles a day, roughly 9% of them trucks, projected to reach 442 by 2043. The structure is 219 ft (66.8 m) long and 30 ft wide. If it were closed, the detour would be 5 mi (8 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 Winnebago River built?
It was built in 1964, making it 61 years old in 2025.
What condition is FM over Winnebago 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 March 2023.
How much traffic does FM over Winnebago River carry?
About 442 vehicles per day (2022 count), of which roughly 9% are trucks.
How long is FM over Winnebago River?
The structure is 219 ft (66.8 m) long with a longest span of 81 ft (24.7 m) and a deck 30 ft wide.
Who owns FM over Winnebago River?
It is owned by the County Highway Agency.