SR 21 over Sinking Creek
PoorLincoln County, Washington · 29.3 N JCT SR 28 · Structure no. 0003714A0000000
- Built
- 1950
- 75 years old
- Condition
- Poor
- inspected August 2024
- Type
- Slab
- Concrete Continuous
- Length
- 82 ft
- 4 main spans
- Daily traffic
- 267
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
SR 21 over Sinking Creek is a concrete continuous slab carrying SR 21 over Sinking Creek in Lincoln County, Washington. It was built in 1950, so it is 75 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 267 vehicles a day, roughly 13% of them trucks, projected to reach 293 by 2039. The structure is 82 ft (25 m) long and 30 ft wide. If it were closed, the detour would be 6.2 mi (10 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 | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SR 21 over Sinking Creek built?
It was built in 1950, making it 75 years old in 2025.
What condition is SR 21 over Sinking Creek 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 21 over Sinking Creek carry?
About 267 vehicles per day (2023 count), of which roughly 13% are trucks.
How long is SR 21 over Sinking Creek?
The structure is 82 ft (25 m) long with a longest span of 22 ft (6.7 m) and a deck 30 ft wide.
Who owns SR 21 over Sinking Creek?
It is owned by the State Highway Agency.