FM over Boone River
GoodHamilton County, Iowa · 089260104 · Structure no. 000000000172451
- Built
- 2009
- 16 years old
- Condition
- Good
- inspected September 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 313 ft
- 3 main spans
- Daily traffic
- 509
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
FM over Boone River is a prestressed concrete stringer/multi-beam or girder carrying FM over Boone River in Hamilton County, Iowa. It was built in 2009, so it is 16 years old, younger 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 509 vehicles a day, roughly 17% of them trucks, projected to reach 509 by 2044. The structure is 313 ft (95.4 m) long and 33 ft wide. If it were closed, the detour would be 8.7 mi (14 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 | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was FM over Boone River built?
It was built in 2009, making it 16 years old in 2025.
What condition is FM over Boone 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 September 2024.
How much traffic does FM over Boone River carry?
About 509 vehicles per day (2022 count), of which roughly 17% are trucks.
How long is FM over Boone River?
The structure is 313 ft (95.4 m) long with a longest span of 111 ft (33.8 m) and a deck 33 ft wide.
Who owns FM over Boone River?
It is owned by the County Highway Agency.