480th ST over Drainage
GoodMitchell County, Iowa · 100172801 · Structure no. 000000000249041
- Built
- 1997
- 28 years old
- Condition
- Good
- inspected December 2023
- Type
- Culvert
- Steel
- Length
- 33 ft
- 2 main spans
- Daily traffic
- 44
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
480th ST over Drainage is a steel culvert carrying 480th ST over Drainage in Mitchell County, Iowa. It was built in 1997, so it is 28 years old, younger than the Iowa average of 45.5 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 44 vehicles a day, projected to reach 44 by 2043. The structure is 33 ft (10.1 m) long.
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Channel and channel protection | 7 Good | Some minor problems. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 480th ST over Drainage built?
It was built in 1997, making it 28 years old in 2025.
What condition is 480th ST over Drainage in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in December 2023.
How much traffic does 480th ST over Drainage carry?
About 44 vehicles per day (2022 count).
How long is 480th ST over Drainage?
The structure is 33 ft (10.1 m) long with a longest span of 14 ft (4.3 m).
Who owns 480th ST over Drainage?
It is owned by the County Highway Agency.