Ia 122 over Winnebago River
GoodCerro Gordo County, Iowa · 2.0 Mi. E of Jct. U.S. 65 · Structure no. 000000000018831
- Built
- 1984
- 41 years old
- Condition
- Good
- inspected December 2022
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 196 ft
- 3 main spans
- Daily traffic
- 6,800
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Ia 122 over Winnebago River is a prestressed concrete stringer/multi-beam or girder carrying Ia 122 over Winnebago River in Cerro Gordo County, Iowa. It was built in 1984, so it is 41 years old, younger 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 6,800 vehicles a day, roughly 3% of them trucks, projected to reach 6,800 by 2042. The structure is 196 ft (59.7 m) long and 69 ft wide. If it were closed, the detour would be 6.8 mi (11 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 | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| 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 Ia 122 over Winnebago River built?
It was built in 1984, making it 41 years old in 2025.
What condition is Ia 122 over Winnebago River 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 December 2022.
How much traffic does Ia 122 over Winnebago River carry?
About 6,800 vehicles per day (2022 count), of which roughly 3% are trucks.
How long is Ia 122 over Winnebago River?
The structure is 196 ft (59.7 m) long with a longest span of 64 ft (19.5 m) and a deck 69 ft wide.
Who owns Ia 122 over Winnebago River?
It is owned by the State Highway Agency.