580th ST SE over Otter Creek
FairJohnson County, Iowa · 077060101 · Structure no. 000000000202860
- Built
- 1964
- 61 years old
- Condition
- Fair
- inspected April 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 44 ft
- 1 main span
- Daily traffic
- 81
- 2021 count
- Owner
- County
- County Highway Agency
About this bridge
580th ST SE over Otter Creek is a prestressed concrete stringer/multi-beam or girder carrying 580th ST SE over Otter Creek in Johnson County, Iowa. It was built in 1964, so it is 61 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 81 vehicles a day, projected to reach 81 by 2043. The structure is 44 ft (13.4 m) long and 27 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 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 580th ST SE over Otter Creek built?
It was built in 1964, making it 61 years old in 2025.
What condition is 580th ST SE over Otter Creek 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 April 2023.
How much traffic does 580th ST SE over Otter Creek carry?
About 81 vehicles per day (2021 count).
How long is 580th ST SE over Otter Creek?
The structure is 44 ft (13.4 m) long with a longest span of 42 ft (12.8 m) and a deck 27 ft wide.
Who owns 580th ST SE over Otter Creek?
It is owned by the County Highway Agency.