Local Road over Argo Slough
PoorClosed to trafficLyon County, Iowa · 099431602 · Structure no. 000000000229640
- Built
- 1900
- 125 years old, rebuilt 2005
- Condition
- Poor
- inspected July 2024
- Type
- Stringer/Multi-beam or Girder
- Wood or Timber
- Length
- 46 ft
- 3 main spans
- Daily traffic
- 46
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
Local Road over Argo Slough is a wood or timber stringer/multi-beam or girder carrying Local Road over Argo Slough in Lyon County, Iowa. It was built in 1900 and reconstructed in 2005, so it is 125 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 0 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: closed to all traffic.
It carries about 46 vehicles a day, projected to reach 46 by 2044. The structure is 46 ft (14 m) long and 18 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 | 0 Failed | Out of service and beyond corrective action. |
| Superstructure | 0 Failed | Out of service and beyond corrective action. |
| Substructure | 0 Failed | Out of service and beyond corrective action. |
| Channel and channel protection | 2 Critical | Advanced deterioration of primary structural elements. Bridge may be closed until corrective action is taken. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Local Road over Argo Slough built?
It was built in 1900, making it 125 years old in 2025. It was reconstructed in 2005.
What condition is Local Road over Argo Slough 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 July 2024.
How much traffic does Local Road over Argo Slough carry?
About 46 vehicles per day (2022 count).
How long is Local Road over Argo Slough?
The structure is 46 ft (14 m) long with a longest span of 16 ft (4.9 m) and a deck 18 ft wide.
Who owns Local Road over Argo Slough?
It is owned by the County Highway Agency.