SR320 over Ir 70 (usr 35)
GoodPreble County, Ohio · Over Ir 70 · Structure no. 6803180
- Built
- 1962
- 63 years old, rebuilt 2020
- Condition
- Good
- inspected July 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 282 ft
- 4 main spans
- Daily traffic
- 1,300
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
SR320 over Ir 70 (usr 35) is a steel continuous stringer/multi-beam or girder carrying SR320 over Ir 70 (usr 35) in Preble County, Ohio. It was built in 1962 and reconstructed in 2020, so it is 63 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 1,300 vehicles a day, roughly 7% of them trucks, projected to reach 1,300 by 2040. The structure is 282 ft (86 m) long and 31 ft wide. 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 |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SR320 over Ir 70 (usr 35) built?
It was built in 1962, making it 63 years old in 2025. It was reconstructed in 2020.
What condition is SR320 over Ir 70 (usr 35) 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 SR320 over Ir 70 (usr 35) carry?
About 1,300 vehicles per day (2020 count), of which roughly 7% are trucks.
How long is SR320 over Ir 70 (usr 35)?
The structure is 282 ft (86 m) long with a longest span of 82 ft (25 m) and a deck 31 ft wide.
Who owns SR320 over Ir 70 (usr 35)?
It is owned by the State Highway Agency.