FM over Branch of Iowa River
PoorTama County, Iowa · 082151203 · Structure no. 000000000317010
- Built
- 1936
- 89 years old, rebuilt 1961
- Condition
- Poor
- inspected October 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 41 ft
- 1 main span
- Daily traffic
- 491
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
FM over Branch of Iowa River is a steel stringer/multi-beam or girder carrying FM over Branch of Iowa River in Tama County, Iowa. It was built in 1936 and reconstructed in 1961, so it is 89 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 4 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.
It carries about 491 vehicles a day, roughly 8% of them trucks, projected to reach 491 by 2044. The structure is 41 ft (12.5 m) long and 26 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 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 | 7 Good | Some minor problems. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was FM over Branch of Iowa River built?
It was built in 1936, making it 89 years old in 2025. It was reconstructed in 1961.
What condition is FM over Branch of Iowa 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 Branch of Iowa River carry?
About 491 vehicles per day (2022 count), of which roughly 8% are trucks.
How long is FM over Branch of Iowa River?
The structure is 41 ft (12.5 m) long with a longest span of 40 ft (12.2 m) and a deck 26 ft wide.
Who owns FM over Branch of Iowa River?
It is owned by the County Highway Agency.