Or 224 (hwy 171) over Rock Creek
GoodClackamas County, Oregon · 3.2 M E of HWY 64 · Structure no. 01439B171 00813
- Built
- 1985
- 40 years old, rebuilt 2005
- Condition
- Good
- inspected August 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 193 ft
- 3 main spans
- Daily traffic
- 20,132
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Or 224 (hwy 171) over Rock Creek is a prestressed concrete stringer/multi-beam or girder carrying Or 224 (hwy 171) over Rock Creek in Clackamas County, Oregon. It was built in 1985 and reconstructed in 2005, so it is 40 years old, younger than the Oregon average of 49.9 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 20,132 vehicles a day, roughly 4% of them trucks, projected to reach 26,700 by 2042. The structure is 193 ft (58.9 m) long and 95 ft wide. If it were closed, the detour would be 5 mi (8 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| 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 224 (hwy 171) over Rock Creek built?
It was built in 1985, making it 40 years old in 2025. It was reconstructed in 2005.
What condition is Or 224 (hwy 171) over Rock Creek in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2023.
How much traffic does Or 224 (hwy 171) over Rock Creek carry?
About 20,132 vehicles per day (2022 count), of which roughly 4% are trucks.
How long is Or 224 (hwy 171) over Rock Creek?
The structure is 193 ft (58.9 m) long with a longest span of 161 ft (49.1 m) and a deck 95 ft wide.
Who owns Or 224 (hwy 171) over Rock Creek?
It is owned by the State Highway Agency.