WB US 30 over South Skunk River
FairStory County, Iowa · 1.2 Mi. W of Jct. I-35 · Structure no. 000000000048740
- Built
- 1963
- 62 years old
- Condition
- Fair
- inspected August 2024
- Type
- Girder and Floorbeam System
- Steel Continuous
- Length
- 325 ft
- 3 main spans
- Daily traffic
- 16,300
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
WB US 30 over South Skunk River is a steel continuous girder and floorbeam system carrying WB US 30 over South Skunk River in Story County, Iowa. It was built in 1963, so it is 62 years old, older than the Iowa average of 45.5 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 16,300 vehicles a day, roughly 8% of them trucks, projected to reach 16,300 by 2044. The structure is 325 ft (99.1 m) long and 36 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was WB US 30 over South Skunk River built?
It was built in 1963, making it 62 years old in 2025.
What condition is WB US 30 over South Skunk River in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2024.
How much traffic does WB US 30 over South Skunk River carry?
About 16,300 vehicles per day (2023 count), of which roughly 8% are trucks.
How long is WB US 30 over South Skunk River?
The structure is 325 ft (99.1 m) long with a longest span of 125 ft (38.1 m) and a deck 36 ft wide.
Who owns WB US 30 over South Skunk River?
It is owned by the State Highway Agency.