250 Street over Nishna River Overflow
FairFremont County, Iowa · 068413001 · Structure no. 000000000025451
- Built
- 1975
- 50 years old
- Condition
- Fair
- inspected May 2023
- Type
- Slab
- Concrete Continuous
- Length
- 103 ft
- 3 main spans
- Daily traffic
- 866
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
250 Street over Nishna River Overflow is a concrete continuous slab carrying 250 Street over Nishna River Overflow in Fremont County, Iowa. It was built in 1975, so it is 50 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 866 vehicles a day, roughly 9% of them trucks, projected to reach 866 by 2043. The structure is 103 ft (31.4 m) long and 33 ft wide. If it were closed, the detour would be 19.3 mi (31 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 250 Street over Nishna River Overflow built?
It was built in 1975, making it 50 years old in 2025.
What condition is 250 Street over Nishna River Overflow 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 May 2023.
How much traffic does 250 Street over Nishna River Overflow carry?
About 866 vehicles per day (2022 count), of which roughly 9% are trucks.
How long is 250 Street over Nishna River Overflow?
The structure is 103 ft (31.4 m) long with a longest span of 39 ft (11.9 m) and a deck 33 ft wide.
Who owns 250 Street over Nishna River Overflow?
It is owned by the County Highway Agency.