280th ST over Grant 5 Open Ditch Ext
PoorPosted for loadStory County, Iowa · 082220601 · Structure no. 000000000313640
- Built
- 1916
- 109 years old, rebuilt 1974
- Condition
- Poor
- inspected January 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 26 ft
- 1 main span
- Daily traffic
- 131
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
280th ST over Grant 5 Open Ditch Ext is a steel stringer/multi-beam or girder carrying 280th ST over Grant 5 Open Ditch Ext in Story County, Iowa. It was built in 1916 and reconstructed in 1974, so it is 109 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 131 vehicles a day, projected to reach 131 by 2043. The structure is 26 ft (7.9 m) long and 18 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 280th ST over Grant 5 Open Ditch Ext built?
It was built in 1916, making it 109 years old in 2025. It was reconstructed in 1974.
What condition is 280th ST over Grant 5 Open Ditch Ext 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 Grant 5 Open Ditch Ext carry?
About 131 vehicles per day (2022 count).
How long is 280th ST over Grant 5 Open Ditch Ext?
The structure is 26 ft (7.9 m) long with a longest span of 24 ft (7.3 m) and a deck 18 ft wide.
Who owns 280th ST over Grant 5 Open Ditch Ext?
It is owned by the County Highway Agency.