US 42 over Mill Run
GoodWarren County, Ohio · 1.2 MI N Waynesville N CO · Structure no. 8300720
- Built
- 1960
- 65 years old
- Condition
- Good
- inspected June 2023
- Type
- Culvert
- Steel
- Length
- 38 ft
- 2 main spans
- Daily traffic
- 4,986
- 2015 count
- Owner
- State
- State Highway Agency
About this bridge
US 42 over Mill Run is a steel culvert carrying US 42 over Mill Run in Warren County, Ohio. It was built in 1960, so it is 65 years old, older than the Ohio average of 47.3 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 4,986 vehicles a day, roughly 12% of them trucks, projected to reach 6,921 by 2035. The structure is 38 ft (11.6 m) long.
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 42 over Mill Run built?
It was built in 1960, making it 65 years old in 2025.
What condition is US 42 over Mill Run 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 June 2023.
How much traffic does US 42 over Mill Run carry?
About 4,986 vehicles per day (2015 count), of which roughly 12% are trucks.
How long is US 42 over Mill Run?
The structure is 38 ft (11.6 m) long with a longest span of 17 ft (5.2 m).
Who owns US 42 over Mill Run?
It is owned by the State Highway Agency.