IR-75 over Howell Extension Ditch
GoodMiami County, Ohio · 2.83MI.N. of Jct. SR-41 · Structure no. 5502616
- Built
- 1957
- 68 years old
- Condition
- Good
- inspected July 2024
- Type
- Culvert
- Steel
- Length
- 35 ft
- 2 main spans
- Daily traffic
- 54,110
- 2015 count
- Owner
- State
- State Highway Agency
About this bridge
IR-75 over Howell Extension Ditch is a steel culvert carrying IR-75 over Howell Extension Ditch in Miami County, Ohio. It was built in 1957, so it is 68 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 54,110 vehicles a day, roughly 12% of them trucks, projected to reach 75,105 by 2035. The structure is 35 ft (10.7 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 | 7 Good | Some minor problems. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was IR-75 over Howell Extension Ditch built?
It was built in 1957, making it 68 years old in 2025.
What condition is IR-75 over Howell Extension 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 2024.
How much traffic does IR-75 over Howell Extension Ditch carry?
About 54,110 vehicles per day (2015 count), of which roughly 12% are trucks.
How long is IR-75 over Howell Extension Ditch?
The structure is 35 ft (10.7 m) long with a longest span of 16 ft (4.9 m).
Who owns IR-75 over Howell Extension Ditch?
It is owned by the State Highway Agency.