Or 22 (hwy 162) over Partial Viaduct
FairMarion County, Oregon · 100 MI E Mill City · Structure no. 07964 162 04033
- Built
- 1947
- 78 years old
- Condition
- Fair
- inspected August 2023
- Type
- Slab
- Concrete Continuous
- Length
- 442 ft
- 18 main spans
- Daily traffic
- 4,907
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Or 22 (hwy 162) over Partial Viaduct is a concrete continuous slab carrying Or 22 (hwy 162) over Partial Viaduct in Marion County, Oregon. It was built in 1947, so it is 78 years old, older than the Oregon average of 49.9 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 4,907 vehicles a day, roughly 17% of them trucks, projected to reach 6,300 by 2042. The structure is 442 ft (134.8 m) long and 36 ft wide. If it were closed, the detour would be 34.2 mi (55 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Or 22 (hwy 162) over Partial Viaduct built?
It was built in 1947, making it 78 years old in 2025.
What condition is Or 22 (hwy 162) over Partial Viaduct in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2023.
How much traffic does Or 22 (hwy 162) over Partial Viaduct carry?
About 4,907 vehicles per day (2022 count), of which roughly 17% are trucks.
How long is Or 22 (hwy 162) over Partial Viaduct?
The structure is 442 ft (134.8 m) long with a longest span of 25 ft (7.6 m) and a deck 36 ft wide.
Who owns Or 22 (hwy 162) over Partial Viaduct?
It is owned by the State Highway Agency.