FM over Iowa River Overflow
PoorPosted for loadTama County, Iowa · 082132002 · Structure no. 000000000316600
- Built
- 1968
- 57 years old
- Condition
- Poor
- inspected October 2024
- Type
- Slab
- Concrete
- Length
- 32 ft
- 1 main span
- Daily traffic
- 786
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
FM over Iowa River Overflow is a concrete slab carrying FM over Iowa River Overflow in Tama County, Iowa. It was built in 1968, so it is 57 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 other load-capacity restriction.
It carries about 786 vehicles a day, roughly 12% of them trucks, projected to reach 786 by 2044. The structure is 32 ft (9.8 m) long and 30 ft wide. If it were closed, the detour would be 21.7 mi (35 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 | 4 Poor | Advanced section loss, deterioration, 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 Iowa River Overflow built?
It was built in 1968, making it 57 years old in 2025.
What condition is FM over Iowa River Overflow 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 Iowa River Overflow carry?
About 786 vehicles per day (2022 count), of which roughly 12% are trucks.
How long is FM over Iowa River Overflow?
The structure is 32 ft (9.8 m) long with a longest span of 30 ft (9.1 m) and a deck 30 ft wide.
Who owns FM over Iowa River Overflow?
It is owned by the County Highway Agency.