US 18 EB & 63 SB over Imrr & B-57
GoodChickasaw County, Iowa · 0.6 Mi. E of W Jct. US 63 · Structure no. 000000000606950
- Built
- 2002
- 23 years old
- Condition
- Good
- inspected January 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 341 ft
- 4 main spans
- Daily traffic
- 2,440
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
US 18 EB & 63 SB over Imrr & B-57 is a prestressed concrete stringer/multi-beam or girder carrying US 18 EB & 63 SB over Imrr & B-57 in Chickasaw County, Iowa. It was built in 2002, so it is 23 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 2,440 vehicles a day, roughly 23% of them trucks, projected to reach 2,440 by 2044. The structure is 341 ft (103.9 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 18 EB & 63 SB over Imrr & B-57 built?
It was built in 2002, making it 23 years old in 2025.
What condition is US 18 EB & 63 SB over Imrr & B-57 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 January 2024.
How much traffic does US 18 EB & 63 SB over Imrr & B-57 carry?
About 2,440 vehicles per day (2022 count), of which roughly 23% are trucks.
How long is US 18 EB & 63 SB over Imrr & B-57?
The structure is 341 ft (103.9 m) long with a longest span of 112 ft (34.1 m) and a deck 43 ft wide.
Who owns US 18 EB & 63 SB over Imrr & B-57?
It is owned by the State Highway Agency.