FM over North River
PoorPosted for loadWarren County, Iowa · 077253308 · Structure no. 000000000335520
- Built
- 1949
- 76 years old, rebuilt 1965
- Condition
- Poor
- inspected October 2024
- Type
- Truss - Thru
- Steel
- Length
- 226 ft
- 1 main span
- Daily traffic
- 89
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
FM over North River is a steel truss - thru carrying FM over North River in Warren County, Iowa. It was built in 1949 and reconstructed in 1965, so it is 76 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 89 vehicles a day, roughly 8% of them trucks, projected to reach 89 by 2044. The structure is 226 ft (68.9 m) long and 20 ft wide. If it were closed, the detour would be 5 mi (8 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 | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| 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 North River built?
It was built in 1949, making it 76 years old in 2025. It was reconstructed in 1965.
What condition is FM over North 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 October 2024.
How much traffic does FM over North River carry?
About 89 vehicles per day (2022 count), of which roughly 8% are trucks.
How long is FM over North River?
The structure is 226 ft (68.9 m) long with a longest span of 157 ft (47.9 m) and a deck 20 ft wide.
Who owns FM over North River?
It is owned by the County Highway Agency.