280th Street over I-29
FairHarrison County, Iowa · 1.5 MI S of SR F-50 · Structure no. 000000000028170
- Built
- 1967
- 58 years old
- Condition
- Fair
- inspected September 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 255 ft
- 4 main spans
- Daily traffic
- 26
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
280th Street over I-29 is a steel continuous stringer/multi-beam or girder carrying 280th Street over I-29 in Harrison County, Iowa. It was built in 1967, so it is 58 years old, older than the Iowa average of 45.5 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 26 vehicles a day, projected to reach 26 by 2043. The structure is 255 ft (77.7 m) long and 28 ft wide. If it were closed, the detour would be 3.1 mi (5 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 280th Street over I-29 built?
It was built in 1967, making it 58 years old in 2025.
What condition is 280th Street over I-29 in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in September 2023.
How much traffic does 280th Street over I-29 carry?
About 26 vehicles per day (2022 count).
How long is 280th Street over I-29?
The structure is 255 ft (77.7 m) long with a longest span of 72 ft (21.9 m) and a deck 28 ft wide.
Who owns 280th Street over I-29?
It is owned by the State Highway Agency.