Underwood Ave over N Fork Long CR
PoorWashington County, Iowa · 075061602 · Structure no. 000000000336201
- Built
- 1953
- 72 years old
- Condition
- Poor
- inspected February 2023
- Type
- Stringer/Multi-beam or Girder
- Concrete
- Length
- 70 ft
- 1 main span
- Daily traffic
- 131
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
Underwood Ave over N Fork Long CR is a concrete stringer/multi-beam or girder carrying Underwood Ave over N Fork Long CR in Washington County, Iowa. It was built in 1953, so it is 72 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.
It carries about 131 vehicles a day, projected to reach 131 by 2043. The structure is 70 ft (21.3 m) long and 23 ft wide. If it were closed, the detour would be 6.8 mi (11 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 | 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 Underwood Ave over N Fork Long CR built?
It was built in 1953, making it 72 years old in 2025.
What condition is Underwood Ave over N Fork Long CR 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 February 2023.
How much traffic does Underwood Ave over N Fork Long CR carry?
About 131 vehicles per day (2022 count).
How long is Underwood Ave over N Fork Long CR?
The structure is 70 ft (21.3 m) long with a longest span of 68 ft (20.7 m) and a deck 23 ft wide.
Who owns Underwood Ave over N Fork Long CR?
It is owned by the County Highway Agency.