Ia 17 over US 20
GoodHamilton County, Iowa · At East Junction US 20 · Structure no. 000000000026465
- Built
- 1974
- 51 years old
- Condition
- Good
- inspected March 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 268 ft
- 4 main spans
- Daily traffic
- 6,170
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Ia 17 over US 20 is a prestressed concrete stringer/multi-beam or girder carrying Ia 17 over US 20 in Hamilton County, Iowa. It was built in 1974, so it is 51 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 6,170 vehicles a day, roughly 10% of them trucks, projected to reach 6,170 by 2043. The structure is 268 ft (81.7 m) long and 47 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Ia 17 over US 20 built?
It was built in 1974, making it 51 years old in 2025.
What condition is Ia 17 over US 20 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 March 2023.
How much traffic does Ia 17 over US 20 carry?
About 6,170 vehicles per day (2023 count), of which roughly 10% are trucks.
How long is Ia 17 over US 20?
The structure is 268 ft (81.7 m) long with a longest span of 92 ft (28 m) and a deck 47 ft wide.
Who owns Ia 17 over US 20?
It is owned by the State Highway Agency.