FM over Nishnabotna River
GoodMontgomery County, Iowa · 072382903 · Structure no. 000000000255631
- Built
- 1997
- 28 years old
- Condition
- Good
- inspected May 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 355 ft
- 4 main spans
- Daily traffic
- 2,231
- 2021 count
- Owner
- County
- County Highway Agency
About this bridge
FM over Nishnabotna River is a prestressed concrete stringer/multi-beam or girder carrying FM over Nishnabotna River in Montgomery County, Iowa. It was built in 1997, so it is 28 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 2,231 vehicles a day, projected to reach 2,231 by 2043. The structure is 355 ft (108.2 m) long and 35 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was FM over Nishnabotna River built?
It was built in 1997, making it 28 years old in 2025.
What condition is FM over Nishnabotna 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 May 2023.
How much traffic does FM over Nishnabotna River carry?
About 2,231 vehicles per day (2021 count).
How long is FM over Nishnabotna River?
The structure is 355 ft (108.2 m) long with a longest span of 96 ft (29.4 m) and a deck 35 ft wide.
Who owns FM over Nishnabotna River?
It is owned by the County Highway Agency.