279th Ave over Drainage
PoorWinneshiek County, Iowa · 100091904 · Structure no. 000000000349535
- Built
- 1900
- 125 years old
- Condition
- Poor
- inspected March 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 28 ft
- 1 main span
- Daily traffic
- 15
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
279th Ave over Drainage is a steel stringer/multi-beam or girder carrying 279th Ave over Drainage in Winneshiek County, Iowa. It was built in 1900, so it is 125 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 3 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 15 vehicles a day, projected to reach 15 by 2044. The structure is 28 ft (8.5 m) long and 16 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| 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 279th Ave over Drainage built?
It was built in 1900, making it 125 years old in 2025.
What condition is 279th Ave over Drainage 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 March 2024.
How much traffic does 279th Ave over Drainage carry?
About 15 vehicles per day (2022 count).
How long is 279th Ave over Drainage?
The structure is 28 ft (8.5 m) long with a longest span of 24 ft (7.3 m) and a deck 16 ft wide.
Who owns 279th Ave over Drainage?
It is owned by the County Highway Agency.