FM over Middle River
PoorPosted for loadMadison County, Iowa · 076262506 · Structure no. 000000000233730
- Built
- 1932
- 93 years old
- Condition
- Poor
- inspected August 2024
- Type
- Truss - Thru
- Steel
- Length
- 257 ft
- 1 main span
- Daily traffic
- 450
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
FM over Middle River is a steel truss - thru carrying FM over Middle River in Madison County, Iowa. It was built in 1932, so it is 93 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 3 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. Its operating status is: posted for load restriction.
It carries about 450 vehicles a day, roughly 12% of them trucks, projected to reach 450 by 2044. The structure is 257 ft (78.3 m) long and 22 ft wide. If it were closed, the detour would be 3.1 mi (5 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 | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Superstructure | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| 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 Middle River built?
It was built in 1932, making it 93 years old in 2025.
What condition is FM over Middle 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 August 2024.
How much traffic does FM over Middle River carry?
About 450 vehicles per day (2022 count), of which roughly 12% are trucks.
How long is FM over Middle River?
The structure is 257 ft (78.3 m) long with a longest span of 130 ft (39.6 m) and a deck 22 ft wide.
Who owns FM over Middle River?
It is owned by the County Highway Agency.