Ia 39 over Porter Creek
GoodSac County, Iowa · 2.4 Mi. South of Jct. D59 · Structure no. 000000000046701
- Built
- 2023
- 2 years old
- Condition
- Good
- inspected October 2024
- Type
- Culvert
- Concrete Continuous
- Length
- 27 ft
- 2 main spans
- Daily traffic
- 1,450
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Ia 39 over Porter Creek is a concrete continuous culvert carrying Ia 39 over Porter Creek in Sac County, Iowa. It was built in 2023, so it is 2 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 1,450 vehicles a day, roughly 29% of them trucks, projected to reach 1,450 by 2044. The structure is 27 ft (8.2 m) long. If it were closed, the detour would be 1.9 mi (3 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 |
|---|---|---|
| Channel and channel protection | 8 Very Good | No problems noted. |
| Culvert | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Ia 39 over Porter Creek built?
It was built in 2023, making it 2 years old in 2025.
What condition is Ia 39 over Porter Creek 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 October 2024.
How much traffic does Ia 39 over Porter Creek carry?
About 1,450 vehicles per day (2023 count), of which roughly 29% are trucks.
How long is Ia 39 over Porter Creek?
The structure is 27 ft (8.2 m) long with a longest span of 12 ft (3.7 m).
Who owns Ia 39 over Porter Creek?
It is owned by the State Highway Agency.