Iowa Ave over Iowa River
PoorJohnson County, Iowa · 79060900 · Structure no. 000000000501180
- Built
- 1916
- 109 years old, rebuilt 1985
- Condition
- Poor
- inspected July 2023
- Type
- Arch - Deck
- Concrete Continuous
- Length
- 315 ft
- 3 main spans
- Daily traffic
- 5,400
- 2022 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Iowa Ave over Iowa River is a concrete continuous arch - deck carrying Iowa Ave over Iowa River in Johnson County, Iowa. It was built in 1916 and reconstructed in 1985, so it is 109 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 5,400 vehicles a day, roughly 6% of them trucks, projected to reach 5,400 by 2043. The structure is 315 ft (96 m) long and 70 ft wide. If it were closed, the detour would be 8.7 mi (14 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Iowa Ave over Iowa River built?
It was built in 1916, making it 109 years old in 2025. It was reconstructed in 1985.
What condition is Iowa Ave over Iowa 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 2023.
How much traffic does Iowa Ave over Iowa River carry?
About 5,400 vehicles per day (2022 count), of which roughly 6% are trucks.
How long is Iowa Ave over Iowa River?
The structure is 315 ft (96 m) long with a longest span of 105 ft (32 m) and a deck 70 ft wide.
Who owns Iowa Ave over Iowa River?
It is owned by the City or Municipal Highway Agency.