US 61 over Dd #15
GoodClinton County, Iowa · 2.4 Mi. S of S Jct. US 30 · Structure no. 000000000604510
- Built
- 1981
- 44 years old
- Condition
- Good
- inspected July 2023
- Type
- Culvert
- Concrete Continuous
- Length
- 26 ft
- 2 main spans
- Daily traffic
- 17,600
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
US 61 over Dd #15 is a concrete continuous culvert carrying US 61 over Dd #15 in Clinton County, Iowa. It was built in 1981, so it is 44 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 17,600 vehicles a day, roughly 16% of them trucks, projected to reach 17,600 by 2043. The structure is 26 ft (7.9 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 61 over Dd #15 built?
It was built in 1981, making it 44 years old in 2025.
What condition is US 61 over Dd #15 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 US 61 over Dd #15 carry?
About 17,600 vehicles per day (2022 count), of which roughly 16% are trucks.
How long is US 61 over Dd #15?
The structure is 26 ft (7.9 m) long with a longest span of 12 ft (3.7 m).
Who owns US 61 over Dd #15?
It is owned by the State Highway Agency.