Or 47 (hwy 102) over South Fork Dairy Creek
GoodWashington County, Oregon · 034 MI N Forest Grove · Structure no. 04960A102 08622
- Built
- 1942
- 83 years old, rebuilt 1974
- Condition
- Good
- inspected October 2024
- Type
- Slab
- Prestressed Concrete
- Length
- 78 ft
- 3 main spans
- Daily traffic
- 6,189
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Or 47 (hwy 102) over South Fork Dairy Creek is a prestressed concrete slab carrying Or 47 (hwy 102) over South Fork Dairy Creek in Washington County, Oregon. It was built in 1942 and reconstructed in 1974, so it is 83 years old, older 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 6,189 vehicles a day, roughly 19% of them trucks, projected to reach 14,700 by 2042. The structure is 78 ft (23.8 m) long and 44 ft wide. If it were closed, the detour would be 28 mi (45 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 | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
| 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 47 (hwy 102) over South Fork Dairy Creek built?
It was built in 1942, making it 83 years old in 2025. It was reconstructed in 1974.
What condition is Or 47 (hwy 102) over South Fork Dairy 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 October 2024.
How much traffic does Or 47 (hwy 102) over South Fork Dairy Creek carry?
About 6,189 vehicles per day (2022 count), of which roughly 19% are trucks.
How long is Or 47 (hwy 102) over South Fork Dairy Creek?
The structure is 78 ft (23.8 m) long with a longest span of 26 ft (7.9 m) and a deck 44 ft wide.
Who owns Or 47 (hwy 102) over South Fork Dairy Creek?
It is owned by the State Highway Agency.