FM over Boyer River
PoorPosted for loadSac County, Iowa · 086372806 · Structure no. 000000000299500
- Built
- 1958
- 67 years old, rebuilt 1970
- Condition
- Poor
- inspected August 2024
- Type
- Slab
- Concrete Continuous
- Length
- 128 ft
- 3 main spans
- Daily traffic
- 60
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
FM over Boyer River is a concrete continuous slab carrying FM over Boyer River in Sac County, Iowa. It was built in 1958 and reconstructed in 1970, so it is 67 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 60 vehicles a day, roughly 17% of them trucks, projected to reach 60 by 2044. The structure is 128 ft (39 m) long and 36 ft wide. If it were closed, the detour would be 3.1 mi (5 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 | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Superstructure | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 1958, making it 67 years old in 2025. It was reconstructed in 1970.
What condition is FM over Boyer 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 August 2024.
How much traffic does FM over Boyer River carry?
About 60 vehicles per day (2022 count), of which roughly 17% are trucks.
How long is FM over Boyer River?
The structure is 128 ft (39 m) long with a longest span of 49 ft (14.9 m) and a deck 36 ft wide.
Who owns FM over Boyer River?
It is owned by the County Highway Agency.