FM over Upper Iowa River
PoorWinneshiek County, Iowa · 099083104 · Structure no. 000000000348710
- Built
- 1937
- 88 years old, rebuilt 1988
- Condition
- Poor
- inspected March 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 297 ft
- 4 main spans
- Daily traffic
- 324
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
FM over Upper Iowa River is a steel continuous stringer/multi-beam or girder carrying FM over Upper Iowa River in Winneshiek County, Iowa. It was built in 1937 and reconstructed in 1988, so it is 88 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 324 vehicles a day, roughly 15% of them trucks, projected to reach 324 by 2043. The structure is 297 ft (90.5 m) long and 22 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 Upper Iowa River built?
It was built in 1937, making it 88 years old in 2025. It was reconstructed in 1988.
What condition is FM over Upper Iowa 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 Upper Iowa River carry?
About 324 vehicles per day (2022 count), of which roughly 15% are trucks.
How long is FM over Upper Iowa River?
The structure is 297 ft (90.5 m) long with a longest span of 82 ft (25 m) and a deck 22 ft wide.
Who owns FM over Upper Iowa River?
It is owned by the County Highway Agency.