HWY 064 NB over Johnson Creek
FairMultnomah County, Oregon · 0.6 MI N of Portland Scl · Structure no. 13541 064 01722
- Built
- 1974
- 51 years old
- Condition
- Fair
- inspected March 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 328 ft
- 4 main spans
- Daily traffic
- 75,850
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
HWY 064 NB over Johnson Creek is a prestressed concrete continuous box beam or girders - multiple carrying HWY 064 NB over Johnson Creek in Multnomah County, Oregon. It was built in 1974, so it is 51 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 75,850 vehicles a day, roughly 8% of them trucks, projected to reach 83,650 by 2042. The structure is 328 ft (100 m) long and 75 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was HWY 064 NB over Johnson Creek built?
It was built in 1974, making it 51 years old in 2025.
What condition is HWY 064 NB over Johnson Creek 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 March 2023.
How much traffic does HWY 064 NB over Johnson Creek carry?
About 75,850 vehicles per day (2022 count), of which roughly 8% are trucks.
How long is HWY 064 NB over Johnson Creek?
The structure is 328 ft (100 m) long with a longest span of 98 ft (29.9 m) and a deck 75 ft wide.
Who owns HWY 064 NB over Johnson Creek?
It is owned by the State Highway Agency.