SW Champlain DR over B-34 Semi-Viaduct
FairMultnomah County, Oregon · N of SW Fairmount Blvd · Structure no. 25B34 000
- Built
- 1951
- 74 years old
- Condition
- Fair
- inspected September 2024
- Type
- Tee Beam
- Concrete Continuous
- Length
- 62 ft
- 7 main spans
- Daily traffic
- 715
- 2020 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
SW Champlain DR over B-34 Semi-Viaduct is a concrete continuous tee beam carrying SW Champlain DR over B-34 Semi-Viaduct in Multnomah County, Oregon. It was built in 1951, so it is 74 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 6 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 715 vehicles a day, roughly 1% of them trucks, projected to reach 789 by 2025. The structure is 62 ft (18.9 m) long and 10 ft wide.
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 | 8 Very Good | No problems noted. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SW Champlain DR over B-34 Semi-Viaduct built?
It was built in 1951, making it 74 years old in 2025.
What condition is SW Champlain DR over B-34 Semi-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 September 2024.
How much traffic does SW Champlain DR over B-34 Semi-Viaduct carry?
About 715 vehicles per day (2020 count), of which roughly 1% are trucks.
How long is SW Champlain DR over B-34 Semi-Viaduct?
The structure is 62 ft (18.9 m) long with a longest span of 20 ft (6.1 m) and a deck 10 ft wide.
Who owns SW Champlain DR over B-34 Semi-Viaduct?
It is owned by the City or Municipal Highway Agency.