Silver City C-1121 over Cow CR (silver City)
GoodMalheur County, Oregon · 011 MI E JCT HWY 95 · Structure no. 18022 1121 0115
- Built
- 1996
- 29 years old
- Condition
- Good
- inspected September 2023
- Type
- Slab
- Prestressed Concrete
- Length
- 62 ft
- 1 main span
- Daily traffic
- 116
- 2020 count
- Owner
- County
- County Highway Agency
About this bridge
Silver City C-1121 over Cow CR (silver City) is a prestressed concrete slab carrying Silver City C-1121 over Cow CR (silver City) in Malheur County, Oregon. It was built in 1996, so it is 29 years old, younger than the Oregon average of 49.9 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 116 vehicles a day, roughly 10% of them trucks, projected to reach 136 by 2025. The structure is 62 ft (18.9 m) long and 28 ft wide. If it were closed, the detour would be 4.3 mi (7 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 | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Silver City C-1121 over Cow CR (silver City) built?
It was built in 1996, making it 29 years old in 2025.
What condition is Silver City C-1121 over Cow CR (silver City) 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 September 2023.
How much traffic does Silver City C-1121 over Cow CR (silver City) carry?
About 116 vehicles per day (2020 count), of which roughly 10% are trucks.
How long is Silver City C-1121 over Cow CR (silver City)?
The structure is 62 ft (18.9 m) long with a longest span of 61 ft (18.6 m) and a deck 28 ft wide.
Who owns Silver City C-1121 over Cow CR (silver City)?
It is owned by the County Highway Agency.