Ia 220 over So.Overflow Iowa River
GoodIowa County, Iowa · 1.2 Mi. N of Jct. Us. 6 · Structure no. 000000000029641
- Built
- 1978
- 47 years old
- Condition
- Good
- inspected May 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 196 ft
- 3 main spans
- Daily traffic
- 1,050
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Ia 220 over So.Overflow Iowa River is a prestressed concrete stringer/multi-beam or girder carrying Ia 220 over So.Overflow Iowa River in Iowa County, Iowa. It was built in 1978, so it is 47 years old, older 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 1,050 vehicles a day, roughly 9% of them trucks, projected to reach 1,050 by 2042. The structure is 196 ft (59.7 m) long and 43 ft wide. If it were closed, the detour would be 14.9 mi (24 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 | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Ia 220 over So.Overflow Iowa River built?
It was built in 1978, making it 47 years old in 2025.
What condition is Ia 220 over So.Overflow Iowa 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 May 2023.
How much traffic does Ia 220 over So.Overflow Iowa River carry?
About 1,050 vehicles per day (2022 count), of which roughly 9% are trucks.
How long is Ia 220 over So.Overflow Iowa River?
The structure is 196 ft (59.7 m) long with a longest span of 65 ft (19.8 m) and a deck 43 ft wide.
Who owns Ia 220 over So.Overflow Iowa River?
It is owned by the State Highway Agency.