FM over West Nishnabotna River
GoodShelby County, Iowa · 078393203 · Structure no. 000000000304621
- Built
- 1985
- 40 years old
- Condition
- Good
- inspected March 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 229 ft
- 3 main spans
- Daily traffic
- 100
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
FM over West Nishnabotna River is a prestressed concrete stringer/multi-beam or girder carrying FM over West Nishnabotna River in Shelby County, Iowa. It was built in 1985, so it is 40 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 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 100 vehicles a day, projected to reach 100 by 2043. The structure is 229 ft (69.8 m) long and 27 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 7 Good | Some minor problems. |
| 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 West Nishnabotna River built?
It was built in 1985, making it 40 years old in 2025.
What condition is FM over West 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 March 2023.
How much traffic does FM over West Nishnabotna River carry?
About 100 vehicles per day (2022 count).
How long is FM over West Nishnabotna River?
The structure is 229 ft (69.8 m) long with a longest span of 82 ft (25 m) and a deck 27 ft wide.
Who owns FM over West Nishnabotna River?
It is owned by the County Highway Agency.