WB US 20 over W Fk Little Sioux River
GoodWoodbury County, Iowa · 0.1 MI W of JCT Ia 140 · Structure no. 000000000052931
- Built
- 2004
- 21 years old
- Condition
- Good
- inspected February 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 223 ft
- 3 main spans
- Daily traffic
- 4,150
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
WB US 20 over W Fk Little Sioux River is a steel continuous stringer/multi-beam or girder carrying WB US 20 over W Fk Little Sioux River in Woodbury County, Iowa. It was built in 2004, so it is 21 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 4,150 vehicles a day, roughly 17% of them trucks, projected to reach 4,150 by 2043. The structure is 223 ft (68 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 | 7 Good | Some minor problems. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was WB US 20 over W Fk Little Sioux River built?
It was built in 2004, making it 21 years old in 2025.
What condition is WB US 20 over W Fk Little Sioux 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 February 2023.
How much traffic does WB US 20 over W Fk Little Sioux River carry?
About 4,150 vehicles per day (2023 count), of which roughly 17% are trucks.
How long is WB US 20 over W Fk Little Sioux River?
The structure is 223 ft (68 m) long with a longest span of 88 ft (26.8 m) and a deck 43 ft wide.
Who owns WB US 20 over W Fk Little Sioux River?
It is owned by the State Highway Agency.