FM over Boyer River
GoodCrawford County, Iowa · 082401004 · Structure no. 000000000126951
- Built
- 1972
- 53 years old, rebuilt 1993
- Condition
- Good
- inspected March 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 329 ft
- 4 main spans
- Daily traffic
- 210
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
FM over Boyer River is a prestressed concrete stringer/multi-beam or girder carrying FM over Boyer River in Crawford County, Iowa. It was built in 1972 and reconstructed in 1993, so it is 53 years old, older than the Iowa average of 45.5 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 210 vehicles a day, roughly 20% of them trucks, projected to reach 210 by 2043. The structure is 329 ft (100.3 m) long and 33 ft wide. If it were closed, the detour would be 5 mi (8 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
| 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 1972, making it 53 years old in 2025. It was reconstructed in 1993.
What condition is FM over Boyer River in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2023.
How much traffic does FM over Boyer River carry?
About 210 vehicles per day (2022 count), of which roughly 20% are trucks.
How long is FM over Boyer River?
The structure is 329 ft (100.3 m) long with a longest span of 82 ft (25 m) and a deck 33 ft wide.
Who owns FM over Boyer River?
It is owned by the County Highway Agency.