IR-70 over Trib Stillwater River
GoodMontgomery County, Ohio · 1.59MI.E. of Jct. SR-48 · Structure no. 5705762
- Built
- 1959
- 66 years old
- Condition
- Good
- inspected August 2023
- Type
- Culvert
- Steel
- Length
- 34 ft
- 3 main spans
- Daily traffic
- 64,298
- 2015 count
- Owner
- State
- State Highway Agency
About this bridge
IR-70 over Trib Stillwater River is a steel culvert carrying IR-70 over Trib Stillwater River in Montgomery County, Ohio. It was built in 1959, so it is 66 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 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 64,298 vehicles a day, roughly 24% of them trucks, projected to reach 89,246 by 2035. The structure is 34 ft (10.4 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 | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was IR-70 over Trib Stillwater River built?
It was built in 1959, making it 66 years old in 2025.
What condition is IR-70 over Trib Stillwater 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 August 2023.
How much traffic does IR-70 over Trib Stillwater River carry?
About 64,298 vehicles per day (2015 count), of which roughly 24% are trucks.
How long is IR-70 over Trib Stillwater River?
The structure is 34 ft (10.4 m) long with a longest span of 8 ft (2.4 m).
Who owns IR-70 over Trib Stillwater River?
It is owned by the State Highway Agency.