590th Ave over Grant 5 Open Ditch
PoorPosted for loadStory County, Iowa · 083231002 · Structure no. 000000000314700
- Built
- 1938
- 87 years old, rebuilt 1969
- Condition
- Poor
- inspected January 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 33 ft
- 1 main span
- Daily traffic
- 230
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
590th Ave over Grant 5 Open Ditch is a steel stringer/multi-beam or girder carrying 590th Ave over Grant 5 Open Ditch in Story County, Iowa. It was built in 1938 and reconstructed in 1969, so it is 87 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 230 vehicles a day, projected to reach 230 by 2043. The structure is 33 ft (10.1 m) long and 24 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 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 590th Ave over Grant 5 Open Ditch built?
It was built in 1938, making it 87 years old in 2025. It was reconstructed in 1969.
What condition is 590th Ave over Grant 5 Open Ditch 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 590th Ave over Grant 5 Open Ditch carry?
About 230 vehicles per day (2022 count).
How long is 590th Ave over Grant 5 Open Ditch?
The structure is 33 ft (10.1 m) long with a longest span of 32 ft (9.8 m) and a deck 24 ft wide.
Who owns 590th Ave over Grant 5 Open Ditch?
It is owned by the County Highway Agency.