FM over Middle River
FairPosted for loadWarren County, Iowa · 076252802 · Structure no. 000000000334781
- Built
- 1971
- 54 years old
- Condition
- Fair
- inspected October 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 226 ft
- 3 main spans
- Daily traffic
- 180
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
FM over Middle River is a steel continuous stringer/multi-beam or girder carrying FM over Middle River in Warren County, Iowa. It was built in 1971, so it is 54 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. Its operating status is: posted for other load-capacity restriction.
It carries about 180 vehicles a day, projected to reach 180 by 2044. The structure is 226 ft (68.9 m) long and 26 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 Middle River built?
It was built in 1971, making it 54 years old in 2025.
What condition is FM over Middle 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 October 2024.
How much traffic does FM over Middle River carry?
About 180 vehicles per day (2022 count).
How long is FM over Middle River?
The structure is 226 ft (68.9 m) long with a longest span of 88 ft (26.8 m) and a deck 26 ft wide.
Who owns FM over Middle River?
It is owned by the County Highway Agency.