Timber Road over Lousignont Creek
GoodWashington County, Oregon · 005 MI South of HWY 26 · Structure no. 671390A69000870
- Built
- 1984
- 41 years old
- Condition
- Good
- inspected July 2024
- Type
- Slab
- Prestressed Concrete
- Length
- 61 ft
- 1 main span
- Daily traffic
- 472
- 2010 count
- Owner
- County
- County Highway Agency
About this bridge
Timber Road over Lousignont Creek is a prestressed concrete slab carrying Timber Road over Lousignont Creek 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 472 vehicles a day, roughly 10% of them trucks, projected to reach 675 by 2030. The structure is 61 ft (18.6 m) long and 28 ft wide. If it were closed, the detour would be 15.5 mi (25 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Timber Road over Lousignont Creek built?
It was built in 1984, making it 41 years old in 2025.
What condition is Timber Road over Lousignont 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 July 2024.
How much traffic does Timber Road over Lousignont Creek carry?
About 472 vehicles per day (2010 count), of which roughly 10% are trucks.
How long is Timber Road over Lousignont Creek?
The structure is 61 ft (18.6 m) long with a longest span of 60 ft (18.3 m) and a deck 28 ft wide.
Who owns Timber Road over Lousignont Creek?
It is owned by the County Highway Agency.