520th ST over Br Raccoon River
PoorPosted for loadBuena Vista County, Iowa · 092352701 · Structure no. 000000000085500
- Built
- 1931
- 94 years old
- Condition
- Poor
- inspected July 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 24 ft
- 1 main span
- Daily traffic
- 20
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
520th ST over Br Raccoon River is a steel stringer/multi-beam or girder carrying 520th ST over Br Raccoon River in Buena Vista County, Iowa. It was built in 1931, so it is 94 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 20 vehicles a day, projected to reach 20 by 2044. The structure is 24 ft (7.3 m) long and 34 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 520th ST over Br Raccoon River built?
It was built in 1931, making it 94 years old in 2025.
What condition is 520th ST over Br Raccoon River 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 July 2024.
How much traffic does 520th ST over Br Raccoon River carry?
About 20 vehicles per day (2022 count).
How long is 520th ST over Br Raccoon River?
The structure is 24 ft (7.3 m) long with a longest span of 22 ft (6.7 m) and a deck 34 ft wide.
Who owns 520th ST over Br Raccoon River?
It is owned by the County Highway Agency.