370 Avenue over E Nishna River Overflow
PoorFremont County, Iowa · 069402908 · Structure no. 000000000025490
- Built
- 1957
- 68 years old
- Condition
- Poor
- inspected April 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 253 ft
- 6 main spans
- Daily traffic
- 771
- 2021 count
- Owner
- County
- County Highway Agency
About this bridge
370 Avenue over E Nishna River Overflow is a steel stringer/multi-beam or girder carrying 370 Avenue over E Nishna River Overflow in Fremont County, Iowa. It was built in 1957, so it is 68 years old, older than the Iowa average of 45.5 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 771 vehicles a day, roughly 10% of them trucks, projected to reach 771 by 2043. The structure is 253 ft (77.1 m) long and 28 ft wide.
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| 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 | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Channel and channel protection | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 370 Avenue over E Nishna River Overflow built?
It was built in 1957, making it 68 years old in 2025.
What condition is 370 Avenue over E Nishna River Overflow in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in April 2023.
How much traffic does 370 Avenue over E Nishna River Overflow carry?
About 771 vehicles per day (2021 count), of which roughly 10% are trucks.
How long is 370 Avenue over E Nishna River Overflow?
The structure is 253 ft (77.1 m) long with a longest span of 41 ft (12.5 m) and a deck 28 ft wide.
Who owns 370 Avenue over E Nishna River Overflow?
It is owned by the County Highway Agency.