FM over Iowa River
PoorMarshall County, Iowa · 085192707 · Structure no. 000000000244330
- Built
- 1952
- 73 years old
- Condition
- Poor
- inspected November 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 325 ft
- 3 main spans
- Daily traffic
- 49
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
FM over Iowa River is a steel continuous stringer/multi-beam or girder carrying FM over Iowa River in Marshall County, Iowa. It was built in 1952, so it is 73 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 49 vehicles a day, projected to reach 49 by 2043. The structure is 325 ft (99.1 m) long and 22 ft wide. If it were closed, the detour would be 11.2 mi (18 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was FM over Iowa River built?
It was built in 1952, making it 73 years old in 2025.
What condition is FM over 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 November 2023.
How much traffic does FM over Iowa River carry?
About 49 vehicles per day (2022 count).
How long is FM over Iowa River?
The structure is 325 ft (99.1 m) long with a longest span of 125 ft (38.1 m) and a deck 22 ft wide.
Who owns FM over Iowa River?
It is owned by the County Highway Agency.