8th Ave over Cedar River
PoorLinn County, Iowa · 083072803 · Structure no. 000000000001270
- Built
- 1938
- 87 years old, rebuilt 1987
- Condition
- Poor
- inspected July 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 658 ft
- 5 main spans
- Daily traffic
- 9,382
- 2022 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
8th Ave over Cedar River is a steel continuous stringer/multi-beam or girder carrying 8th Ave over Cedar River in Linn County, Iowa. It was built in 1938 and reconstructed in 1987, 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.
It carries about 9,382 vehicles a day, projected to reach 9,382 by 2044. The structure is 658 ft (200.6 m) long and 67 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 4 Poor | Advanced section loss, deterioration, 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 8th Ave over Cedar River built?
It was built in 1938, making it 87 years old in 2025. It was reconstructed in 1987.
What condition is 8th Ave over Cedar 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 8th Ave over Cedar River carry?
About 9,382 vehicles per day (2022 count).
How long is 8th Ave over Cedar River?
The structure is 658 ft (200.6 m) long with a longest span of 116 ft (35.4 m) and a deck 67 ft wide.
Who owns 8th Ave over Cedar River?
It is owned by the City or Municipal Highway Agency.