IR-75 over Great Miami River
GoodMiami County, Ohio · 3.44MI.S. of Jct. USR-36 · Structure no. 5502829
- Built
- 1958
- 67 years old
- Condition
- Good
- inspected May 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 481 ft
- 4 main spans
- Daily traffic
- 23,381
- 2015 count
- Owner
- State
- State Highway Agency
About this bridge
IR-75 over Great Miami River is a steel continuous stringer/multi-beam or girder carrying IR-75 over Great Miami River in Miami County, Ohio. It was built in 1958, so it is 67 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 23,381 vehicles a day, roughly 12% of them trucks, projected to reach 32,453 by 2035. The structure is 481 ft (146.5 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 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 |
|---|---|---|
| Deck | 8 Very Good | No problems noted. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was IR-75 over Great Miami River built?
It was built in 1958, making it 67 years old in 2025.
What condition is IR-75 over Great Miami River 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 2024.
How much traffic does IR-75 over Great Miami River carry?
About 23,381 vehicles per day (2015 count), of which roughly 12% are trucks.
How long is IR-75 over Great Miami River?
The structure is 481 ft (146.5 m) long with a longest span of 138 ft (42.1 m) and a deck 45 ft wide.
Who owns IR-75 over Great Miami River?
It is owned by the State Highway Agency.