Local over Nishnabotna River
PoorPosted for loadAudubon County, Iowa · 079352203 · Structure no. 000000000067670
- Built
- 1958
- 67 years old
- Condition
- Poor
- inspected March 2023
- Type
- Truss - Thru
- Steel
- Length
- 162 ft
- 1 main span
- Daily traffic
- 35
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
Local over Nishnabotna River is a steel truss - thru carrying Local over Nishnabotna River in Audubon County, Iowa. It was built in 1958, so it is 67 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 4 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. Its operating status is: posted for load restriction.
It carries about 35 vehicles a day, roughly 9% of them trucks, projected to reach 35 by 2043. The structure is 162 ft (49.4 m) long and 16 ft wide. If it were closed, the detour would be 3.1 mi (5 km).
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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| 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 Local over Nishnabotna River built?
It was built in 1958, making it 67 years old in 2025.
What condition is Local over Nishnabotna River 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 March 2023.
How much traffic does Local over Nishnabotna River carry?
About 35 vehicles per day (2022 count), of which roughly 9% are trucks.
How long is Local over Nishnabotna River?
The structure is 162 ft (49.4 m) long with a longest span of 90 ft (27.4 m) and a deck 16 ft wide.
Who owns Local over Nishnabotna River?
It is owned by the County Highway Agency.