Ia 3 & 12 over Drainage Ditch
GoodPlymouth County, Iowa · At E JCT of Iowa 12 · Structure no. 000000000039751
- Built
- 1976
- 49 years old
- Condition
- Good
- inspected July 2023
- Type
- Culvert
- Concrete Continuous
- Length
- 26 ft
- 2 main spans
- Daily traffic
- 2,340
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Ia 3 & 12 over Drainage Ditch is a concrete continuous culvert carrying Ia 3 & 12 over Drainage Ditch in Plymouth County, Iowa. It was built in 1976, so it is 49 years old, older 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 2,340 vehicles a day, roughly 13% of them trucks, projected to reach 2,340 by 2043. The structure is 26 ft (7.9 m) long. 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 |
|---|---|---|
| Channel and channel protection | 7 Good | Some minor problems. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Ia 3 & 12 over Drainage Ditch built?
It was built in 1976, making it 49 years old in 2025.
What condition is Ia 3 & 12 over Drainage Ditch 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 July 2023.
How much traffic does Ia 3 & 12 over Drainage Ditch carry?
About 2,340 vehicles per day (2022 count), of which roughly 13% are trucks.
How long is Ia 3 & 12 over Drainage Ditch?
The structure is 26 ft (7.9 m) long with a longest span of 12 ft (3.7 m).
Who owns Ia 3 & 12 over Drainage Ditch?
It is owned by the State Highway Agency.