N Vancouver Ave over B-178 X Columbia Slough
FairMultnomah County, Oregon · 040 MI N Portland Cc · Structure no. 21289 012200046
- Built
- 2010
- 15 years old
- Condition
- Fair
- inspected July 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 357 ft
- 3 main spans
- Daily traffic
- 13,249
- 2020 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
N Vancouver Ave over B-178 X Columbia Slough is a prestressed concrete stringer/multi-beam or girder carrying N Vancouver Ave over B-178 X Columbia Slough in Multnomah County, Oregon. It was built in 2010, so it is 15 years old, younger 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 13,249 vehicles a day, roughly 10% of them trucks, projected to reach 18,085 by 2025. The structure is 357 ft (108.8 m) long and 65 ft wide. If it were closed, the detour would be 0.6 mi (1 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 N Vancouver Ave over B-178 X Columbia Slough built?
It was built in 2010, making it 15 years old in 2025.
What condition is N Vancouver Ave over B-178 X Columbia Slough 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 July 2024.
How much traffic does N Vancouver Ave over B-178 X Columbia Slough carry?
About 13,249 vehicles per day (2020 count), of which roughly 10% are trucks.
How long is N Vancouver Ave over B-178 X Columbia Slough?
The structure is 357 ft (108.8 m) long with a longest span of 130 ft (39.6 m) and a deck 65 ft wide.
Who owns N Vancouver Ave over B-178 X Columbia Slough?
It is owned by the City or Municipal Highway Agency.