Fern Hill Road over Tualatin River
GoodWashington County, Oregon · 002 South HWY 47 · Structure no. 671249062400150
- Built
- 1984
- 41 years old
- Condition
- Good
- inspected August 2024
- Type
- Slab
- Prestressed Concrete
- Length
- 122 ft
- 3 main spans
- Daily traffic
- 1,413
- 2020 count
- Owner
- County
- County Highway Agency
About this bridge
Fern Hill Road over Tualatin River is a prestressed concrete slab carrying Fern Hill Road over Tualatin River in Washington County, Oregon. It was built in 1984, so it is 41 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 1,413 vehicles a day, roughly 5% of them trucks, projected to reach 1,598 by 2025. The structure is 122 ft (37.2 m) long and 28 ft wide. If it were closed, the detour would be 3.7 mi (6 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 Fern Hill Road over Tualatin River built?
It was built in 1984, making it 41 years old in 2025.
What condition is Fern Hill Road over Tualatin River 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 2024.
How much traffic does Fern Hill Road over Tualatin River carry?
About 1,413 vehicles per day (2020 count), of which roughly 5% are trucks.
How long is Fern Hill Road over Tualatin River?
The structure is 122 ft (37.2 m) long with a longest span of 40 ft (12.2 m) and a deck 28 ft wide.
Who owns Fern Hill Road over Tualatin River?
It is owned by the County Highway Agency.