FM over Middle River
FairMadison County, Iowa · 075291006 · Structure no. 000000000362140
- Built
- 1983
- 42 years old
- Condition
- Fair
- inspected August 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 220 ft
- 3 main spans
- Daily traffic
- 329
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
FM over Middle River is a prestressed concrete continuous stringer/multi-beam or girder carrying FM over Middle River in Madison County, Iowa. It was built in 1983, so it is 42 years old, younger 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 329 vehicles a day, roughly 11% of them trucks, projected to reach 329 by 2043. The structure is 220 ft (67.1 m) long and 33 ft wide. If it were closed, the detour would be 14.3 mi (23 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 1983, making it 42 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 August 2023.
How much traffic does FM over Middle River carry?
About 329 vehicles per day (2022 count), of which roughly 11% are trucks.
How long is FM over Middle River?
The structure is 220 ft (67.1 m) long with a longest span of 77 ft (23.5 m) and a deck 33 ft wide.
Who owns FM over Middle River?
It is owned by the County Highway Agency.