Amundson RD over Walker Slough
GoodColumbia County, Oregon · 030 NW Rainier · Structure no. 18019 200000001
- Built
- 1997
- 28 years old
- Condition
- Good
- inspected May 2023
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 98 ft
- 1 main span
- Daily traffic
- 75
- 2020 count
- Owner
- County
- County Highway Agency
About this bridge
Amundson RD over Walker Slough is a prestressed concrete tee beam carrying Amundson RD over Walker Slough in Columbia County, Oregon. It was built in 1997, so it is 28 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 75 vehicles a day, roughly 1% of them trucks, projected to reach 85 by 2025. The structure is 98 ft (29.9 m) long and 27 ft wide. If it were closed, the detour would be 123.7 mi (199 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Amundson RD over Walker Slough built?
It was built in 1997, making it 28 years old in 2025.
What condition is Amundson RD over Walker Slough 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 May 2023.
How much traffic does Amundson RD over Walker Slough carry?
About 75 vehicles per day (2020 count), of which roughly 1% are trucks.
How long is Amundson RD over Walker Slough?
The structure is 98 ft (29.9 m) long with a longest span of 98 ft (29.9 m) and a deck 27 ft wide.
Who owns Amundson RD over Walker Slough?
It is owned by the County Highway Agency.