Karns over Mill Creek
GoodMiami County, Ohio · 0.05 S of CR12 · Structure no. 5534712
- Built
- 1991
- 34 years old
- Condition
- Good
- inspected May 2023
- Type
- Culvert
- Concrete
- Length
- 30 ft
- 1 main span
- Daily traffic
- 797
- 2015 count
- Owner
- County
- County Highway Agency
About this bridge
Karns over Mill Creek is a concrete culvert carrying Karns over Mill Creek in Miami County, Ohio. It was built in 1991, so it is 34 years old, younger 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 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 797 vehicles a day, roughly 8% of them trucks, projected to reach 1,106 by 2038. The structure is 30 ft (9.1 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 | 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 Karns over Mill Creek built?
It was built in 1991, making it 34 years old in 2025.
What condition is Karns over Mill 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 May 2023.
How much traffic does Karns over Mill Creek carry?
About 797 vehicles per day (2015 count), of which roughly 8% are trucks.
How long is Karns over Mill Creek?
The structure is 30 ft (9.1 m) long with a longest span of 30 ft (9.1 m).
Who owns Karns over Mill Creek?
It is owned by the County Highway Agency.