FM over Boyer River
FairSac County, Iowa · 086371403 · Structure no. 000000000299360
- Built
- 1950
- 75 years old, rebuilt 2014
- Condition
- Fair
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 210 ft
- 3 main spans
- Daily traffic
- 489
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
FM over Boyer River is a steel continuous stringer/multi-beam or girder carrying FM over Boyer River in Sac County, Iowa. It was built in 1950 and reconstructed in 2014, 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 489 vehicles a day, roughly 19% of them trucks, projected to reach 489 by 2044. The structure is 210 ft (64 m) long and 29 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 8 Very Good | No problems noted. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
| 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 Boyer River built?
It was built in 1950, making it 75 years old in 2025. It was reconstructed in 2014.
What condition is FM over Boyer 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 August 2024.
How much traffic does FM over Boyer River carry?
About 489 vehicles per day (2022 count), of which roughly 19% are trucks.
How long is FM over Boyer River?
The structure is 210 ft (64 m) long with a longest span of 82 ft (25 m) and a deck 29 ft wide.
Who owns FM over Boyer River?
It is owned by the County Highway Agency.