US 20 (hwy 007) over Silver Creek IRR Channel
GoodHarney County, Oregon · 009 MI W HWY 49 JCT · Structure no. 03504A007 10371
- Built
- 1988
- 37 years old
- Condition
- Good
- inspected November 2023
- Type
- Slab
- Prestressed Concrete
- Length
- 65 ft
- 1 main span
- Daily traffic
- 2,077
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
US 20 (hwy 007) over Silver Creek IRR Channel is a prestressed concrete slab carrying US 20 (hwy 007) over Silver Creek IRR Channel in Harney County, Oregon. It was built in 1988, so it is 37 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 2,077 vehicles a day, roughly 28% of them trucks, projected to reach 2,500 by 2042. The structure is 65 ft (19.8 m) long and 32 ft wide. If it were closed, the detour would be 102.5 mi (165 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 US 20 (hwy 007) over Silver Creek IRR Channel built?
It was built in 1988, making it 37 years old in 2025.
What condition is US 20 (hwy 007) over Silver Creek IRR Channel 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 November 2023.
How much traffic does US 20 (hwy 007) over Silver Creek IRR Channel carry?
About 2,077 vehicles per day (2022 count), of which roughly 28% are trucks.
How long is US 20 (hwy 007) over Silver Creek IRR Channel?
The structure is 65 ft (19.8 m) long with a longest span of 65 ft (19.8 m) and a deck 32 ft wide.
Who owns US 20 (hwy 007) over Silver Creek IRR Channel?
It is owned by the State Highway Agency.