280th ST over Skunk River
PoorPosted for loadStory County, Iowa · 082230501 · Structure no. 000000000313990
- Built
- 1929
- 96 years old, rebuilt 1975
- Condition
- Poor
- inspected January 2023
- Type
- Truss - Thru
- Steel
- Length
- 184 ft
- 2 main spans
- Daily traffic
- 60
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
280th ST over Skunk River is a steel truss - thru carrying 280th ST over Skunk River in Story County, Iowa. It was built in 1929 and reconstructed in 1975, so it is 96 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 60 vehicles a day, projected to reach 60 by 2043. The structure is 184 ft (56.1 m) long and 17 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 280th ST over Skunk River built?
It was built in 1929, making it 96 years old in 2025. It was reconstructed in 1975.
What condition is 280th ST over Skunk 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 January 2023.
How much traffic does 280th ST over Skunk River carry?
About 60 vehicles per day (2022 count).
How long is 280th ST over Skunk River?
The structure is 184 ft (56.1 m) long with a longest span of 90 ft (27.4 m) and a deck 17 ft wide.
Who owns 280th ST over Skunk River?
It is owned by the County Highway Agency.