SR-121 over Branch Stillwater River
GoodDarke County, Ohio · 2.98MI.NE of Jct. USR-127 · Structure no. 1902083
- Built
- 1992
- 33 years old
- Condition
- Good
- inspected July 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 49 ft
- 1 main span
- Daily traffic
- 2,740
- 2015 count
- Owner
- State
- State Highway Agency
About this bridge
SR-121 over Branch Stillwater River is a prestressed concrete box beam or girders - multiple carrying SR-121 over Branch Stillwater River in Darke County, Ohio. It was built in 1992, so it is 33 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 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 2,740 vehicles a day, roughly 4% of them trucks, projected to reach 3,803 by 2035. The structure is 49 ft (14.9 m) long and 32 ft wide. If it were closed, the detour would be 9.9 mi (16 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 | 7 Good | Some minor problems. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SR-121 over Branch Stillwater River built?
It was built in 1992, making it 33 years old in 2025.
What condition is SR-121 over Branch 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 July 2023.
How much traffic does SR-121 over Branch Stillwater River carry?
About 2,740 vehicles per day (2015 count), of which roughly 4% are trucks.
How long is SR-121 over Branch Stillwater River?
The structure is 49 ft (14.9 m) long with a longest span of 43 ft (13.1 m) and a deck 32 ft wide.
Who owns SR-121 over Branch Stillwater River?
It is owned by the State Highway Agency.