FM over South River
FairPosted for loadWarren County, Iowa · 075240204 · Structure no. 000000000333790
- Built
- 1950
- 75 years old
- Condition
- Fair
- inspected October 2024
- Type
- Truss - Thru
- Steel
- Length
- 248 ft
- 1 main span
- Daily traffic
- 280
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
FM over South River is a steel truss - thru carrying FM over South River in Warren County, Iowa. It was built in 1950, so it is 75 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 5 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 load restriction.
It carries about 280 vehicles a day, roughly 10% of them trucks, projected to reach 280 by 2044. The structure is 248 ft (75.6 m) long and 24 ft wide. If it were closed, the detour would be 6.2 mi (10 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 | 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 South River built?
It was built in 1950, making it 75 years old in 2025.
What condition is FM over South 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 South River carry?
About 280 vehicles per day (2022 count), of which roughly 10% are trucks.
How long is FM over South River?
The structure is 248 ft (75.6 m) long with a longest span of 160 ft (48.8 m) and a deck 24 ft wide.
Who owns FM over South River?
It is owned by the County Highway Agency.