US 18 over Little Wap River Ovrflw
GoodChickasaw County, Iowa · 3.0 Mi. W of W Jct. US 63 · Structure no. 000000000608740
- Built
- 2001
- 24 years old
- Condition
- Good
- inspected August 2024
- Type
- Slab
- Concrete Continuous
- Length
- 113 ft
- 3 main spans
- Daily traffic
- 3,030
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
US 18 over Little Wap River Ovrflw is a concrete continuous slab carrying US 18 over Little Wap River Ovrflw in Chickasaw County, Iowa. It was built in 2001, so it is 24 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 3,030 vehicles a day, roughly 12% of them trucks, projected to reach 3,030 by 2044. The structure is 113 ft (34.4 m) long and 47 ft wide. If it were closed, the detour would be 3.1 mi (5 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 US 18 over Little Wap River Ovrflw built?
It was built in 2001, making it 24 years old in 2025.
What condition is US 18 over Little Wap River Ovrflw 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 August 2024.
How much traffic does US 18 over Little Wap River Ovrflw carry?
About 3,030 vehicles per day (2022 count), of which roughly 12% are trucks.
How long is US 18 over Little Wap River Ovrflw?
The structure is 113 ft (34.4 m) long with a longest span of 43 ft (13.1 m) and a deck 47 ft wide.
Who owns US 18 over Little Wap River Ovrflw?
It is owned by the State Highway Agency.