I-80 over North River
FairAdair County, Iowa · 3.1 Mi. E of Jct. Ia 25 · Structure no. 000000000013230
- Built
- 1958
- 67 years old
- Condition
- Fair
- inspected September 2024
- Type
- Culvert
- Concrete Continuous
- Length
- 58 ft
- 3 main spans
- Daily traffic
- 25,900
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
I-80 over North River is a concrete continuous culvert carrying I-80 over North River in Adair County, Iowa. It was built in 1958, so it is 67 years old, older than the Iowa average of 45.5 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 25,900 vehicles a day, roughly 38% of them trucks, projected to reach 25,900 by 2044. The structure is 58 ft (17.7 m) long. If it were closed, the detour would be 1.9 mi (3 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
| Culvert | 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 I-80 over North River built?
It was built in 1958, making it 67 years old in 2025.
What condition is I-80 over North River in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in September 2024.
How much traffic does I-80 over North River carry?
About 25,900 vehicles per day (2022 count), of which roughly 38% are trucks.
How long is I-80 over North River?
The structure is 58 ft (17.7 m) long with a longest span of 21 ft (6.4 m).
Who owns I-80 over North River?
It is owned by the State Highway Agency.