American DR over Slough
GoodLinn County, Oregon · 0171 Miles West of Halsey · Structure no. 12310 000300171
- Built
- 1968
- 57 years old
- Condition
- Good
- inspected May 2023
- Type
- Slab
- Prestressed Concrete
- Length
- 120 ft
- 3 main spans
- Daily traffic
- 3,605
- 2021 count
- Owner
- County
- County Highway Agency
About this bridge
American DR over Slough is a prestressed concrete slab carrying American DR over Slough in Linn County, Oregon. It was built in 1968, so it is 57 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 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 3,605 vehicles a day, roughly 15% of them trucks, projected to reach 5,047 by 2041. The structure is 120 ft (36.6 m) long and 37 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was American DR over Slough built?
It was built in 1968, making it 57 years old in 2025.
What condition is American DR over 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 American DR over Slough carry?
About 3,605 vehicles per day (2021 count), of which roughly 15% are trucks.
How long is American DR over Slough?
The structure is 120 ft (36.6 m) long with a longest span of 40 ft (12.2 m) and a deck 37 ft wide.
Who owns American DR over Slough?
It is owned by the County Highway Agency.