X Avenue over US 20
GoodGrundy County, Iowa · 2.0 Miles West of SR D18 · Structure no. 000000000606970
- Built
- 1999
- 26 years old
- Condition
- Good
- inspected March 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 229 ft
- 2 main spans
- Daily traffic
- 59
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
X Avenue over US 20 is a prestressed concrete stringer/multi-beam or girder carrying X Avenue over US 20 in Grundy County, Iowa. It was built in 1999, so it is 26 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 59 vehicles a day, projected to reach 59 by 2043. The structure is 229 ft (69.9 m) long and 33 ft wide. If it were closed, the detour would be 8.7 mi (14 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 | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was X Avenue over US 20 built?
It was built in 1999, making it 26 years old in 2025.
What condition is X Avenue 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 X Avenue over US 20 carry?
About 59 vehicles per day (2022 count).
How long is X Avenue over US 20?
The structure is 229 ft (69.9 m) long with a longest span of 111 ft (33.8 m) and a deck 33 ft wide.
Who owns X Avenue over US 20?
It is owned by the State Highway Agency.