FM over W. Nisnabotna River
GoodShelby County, Iowa · 079380407 · Structure no. 000000000305221
- Built
- 2003
- 22 years old
- Condition
- Good
- inspected April 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 176 ft
- 3 main spans
- Daily traffic
- 71
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
FM over W. Nisnabotna River is a prestressed concrete stringer/multi-beam or girder carrying FM over W. Nisnabotna River in Shelby County, Iowa. It was built in 2003, so it is 22 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 71 vehicles a day, projected to reach 71 by 2043. The structure is 176 ft (53.6 m) long and 33 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was FM over W. Nisnabotna River built?
It was built in 2003, making it 22 years old in 2025.
What condition is FM over W. Nisnabotna 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 April 2023.
How much traffic does FM over W. Nisnabotna River carry?
About 71 vehicles per day (2022 count).
How long is FM over W. Nisnabotna River?
The structure is 176 ft (53.6 m) long with a longest span of 65 ft (19.8 m) and a deck 33 ft wide.
Who owns FM over W. Nisnabotna River?
It is owned by the County Highway Agency.