CO RD 77 over Johnson Creek
FairClackamas County, Oregon · 0001 MI NW Mcloughlin Blv · Structure no. 01137B
- Built
- 1993
- 32 years old
- Condition
- Fair
- inspected May 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 200 ft
- 3 main spans
- Daily traffic
- 15,104
- 2020 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
CO RD 77 over Johnson Creek is a prestressed concrete box beam or girders - multiple carrying CO RD 77 over Johnson Creek in Clackamas County, Oregon. It was built in 1993, so it is 32 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 15,104 vehicles a day, roughly 10% of them trucks, projected to reach 20,940 by 2025. The structure is 200 ft (61 m) long and 47 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was CO RD 77 over Johnson Creek built?
It was built in 1993, making it 32 years old in 2025.
What condition is CO RD 77 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 May 2023.
How much traffic does CO RD 77 over Johnson Creek carry?
About 15,104 vehicles per day (2020 count), of which roughly 10% are trucks.
How long is CO RD 77 over Johnson Creek?
The structure is 200 ft (61 m) long with a longest span of 92 ft (28 m) and a deck 47 ft wide.
Who owns CO RD 77 over Johnson Creek?
It is owned by the City or Municipal Highway Agency.