US 20 (hwy 33) over Depot Slough
FairLincoln County, Oregon · 056 MI E of HWY 9 JCT · Structure no. 00439B033 00559
- Built
- 1960
- 65 years old
- Condition
- Fair
- inspected July 2023
- Type
- Culvert
- Concrete Continuous
- Length
- 24 ft
- 2 main spans
- Daily traffic
- 8,587
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
US 20 (hwy 33) over Depot Slough is a concrete continuous culvert carrying US 20 (hwy 33) over Depot Slough in Lincoln County, Oregon. It was built in 1960, so it is 65 years old, older than the Oregon average of 49.9 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 8,587 vehicles a day, roughly 3% of them trucks, projected to reach 10,700 by 2042. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 44.7 mi (72 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Channel and channel protection | 7 Good | Some minor problems. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 20 (hwy 33) over Depot Slough built?
It was built in 1960, making it 65 years old in 2025.
What condition is US 20 (hwy 33) over Depot Slough in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2023.
How much traffic does US 20 (hwy 33) over Depot Slough carry?
About 8,587 vehicles per day (2022 count), of which roughly 3% are trucks.
How long is US 20 (hwy 33) over Depot Slough?
The structure is 24 ft (7.3 m) long with a longest span of 12 ft (3.7 m).
Who owns US 20 (hwy 33) over Depot Slough?
It is owned by the State Highway Agency.