500th Ave over US 30
GoodStory County, Iowa · 1.1 Mi. W of Sr. R-38 · Structure no. 000000000600250
- Built
- 1971
- 54 years old
- Condition
- Good
- inspected October 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 284 ft
- 4 main spans
- Daily traffic
- 170
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
500th Ave over US 30 is a prestressed concrete stringer/multi-beam or girder carrying 500th Ave over US 30 in Story County, Iowa. It was built in 1971, so it is 54 years old, older 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 170 vehicles a day, projected to reach 170 by 2043. The structure is 284 ft (86.6 m) long and 33 ft wide. If it were closed, the detour would be 1.9 mi (3 km).
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 |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 500th Ave over US 30 built?
It was built in 1971, making it 54 years old in 2025.
What condition is 500th Ave over US 30 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 October 2023.
How much traffic does 500th Ave over US 30 carry?
About 170 vehicles per day (2022 count).
How long is 500th Ave over US 30?
The structure is 284 ft (86.6 m) long with a longest span of 95 ft (29 m) and a deck 33 ft wide.
Who owns 500th Ave over US 30?
It is owned by the State Highway Agency.