Walnut Ave over Wapsipinicon River
PoorPosted for loadMitchell County, Iowa · 099151402 · Structure no. 000000000036630
- Built
- 1940
- 85 years old
- Condition
- Poor
- inspected December 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 153 ft
- 3 main spans
- Daily traffic
- 462
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
Walnut Ave over Wapsipinicon River is a steel continuous stringer/multi-beam or girder carrying Walnut Ave over Wapsipinicon River in Mitchell County, Iowa. It was built in 1940, so it is 85 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 462 vehicles a day, projected to reach 462 by 2043. The structure is 153 ft (46.6 m) long and 29 ft wide. If it were closed, the detour would be 24.2 mi (39 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Walnut Ave over Wapsipinicon River built?
It was built in 1940, making it 85 years old in 2025.
What condition is Walnut Ave over Wapsipinicon 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 December 2023.
How much traffic does Walnut Ave over Wapsipinicon River carry?
About 462 vehicles per day (2022 count).
How long is Walnut Ave over Wapsipinicon River?
The structure is 153 ft (46.6 m) long with a longest span of 59 ft (18 m) and a deck 29 ft wide.
Who owns Walnut Ave over Wapsipinicon River?
It is owned by the County Highway Agency.