FM over W Nishnabotna
FairPosted for loadPottawattamie County, Iowa · 074402110 · Structure no. 000000000284180
- Built
- 1960
- 65 years old, rebuilt 1986
- Condition
- Fair
- inspected April 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 300 ft
- 3 main spans
- Daily traffic
- 417
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
FM over W Nishnabotna is a steel continuous stringer/multi-beam or girder carrying FM over W Nishnabotna in Pottawattamie County, Iowa. It was built in 1960 and reconstructed in 1986, so it is 65 years old, older than the Iowa average of 45.5 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.
It carries about 417 vehicles a day, roughly 15% of them trucks, projected to reach 417 by 2044. The structure is 300 ft (91.4 m) long and 26 ft wide. If it were closed, the detour would be 5 mi (8 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was FM over W Nishnabotna built?
It was built in 1960, making it 65 years old in 2025. It was reconstructed in 1986.
What condition is FM over W Nishnabotna in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in April 2024.
How much traffic does FM over W Nishnabotna carry?
About 417 vehicles per day (2022 count), of which roughly 15% are trucks.
How long is FM over W Nishnabotna?
The structure is 300 ft (91.4 m) long with a longest span of 118 ft (36 m) and a deck 26 ft wide.
Who owns FM over W Nishnabotna?
It is owned by the County Highway Agency.