SR 20 over Baker River
PoorSkagit County, Washington · 23.6 E JCT SR 9 · Structure no. 0009170A0000000
- Built
- 1972
- 53 years old
- Condition
- Poor
- inspected August 2024
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 563 ft
- 5 main spans
- Daily traffic
- 5,032
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
SR 20 over Baker River is a concrete continuous box beam or girders - multiple carrying SR 20 over Baker River in Skagit County, Washington. It was built in 1972, so it is 53 years old, older than the Washington average of 49.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 5,032 vehicles a day, roughly 8% of them trucks, projected to reach 7,377 by 2039. The structure is 563 ft (171.6 m) long and 42 ft wide. If it were closed, the detour would be 1.9 mi (3 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 SR 20 over Baker River built?
It was built in 1972, making it 53 years old in 2025.
What condition is SR 20 over Baker River in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in August 2024.
How much traffic does SR 20 over Baker River carry?
About 5,032 vehicles per day (2023 count), of which roughly 8% are trucks.
How long is SR 20 over Baker River?
The structure is 563 ft (171.6 m) long with a longest span of 116 ft (35.4 m) and a deck 42 ft wide.
Who owns SR 20 over Baker River?
It is owned by the State Highway Agency.