SR 10 over Swauk CR
PoorKittitas County, Washington · 7.3 E JCT SR 970 · Structure no. 0001403B0000000
- Built
- 1930
- 95 years old
- Condition
- Poor
- inspected June 2023
- Type
- Tee Beam
- Concrete Continuous
- Length
- 155 ft
- 3 main spans
- Daily traffic
- 1,512
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
SR 10 over Swauk CR is a concrete continuous tee beam carrying SR 10 over Swauk CR in Kittitas County, Washington. It was built in 1930, so it is 95 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 1,512 vehicles a day, roughly 13% of them trucks, projected to reach 1,914 by 2039. The structure is 155 ft (47.2 m) long and 30 ft wide. If it were closed, the detour would be 21.1 mi (34 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SR 10 over Swauk CR built?
It was built in 1930, making it 95 years old in 2025.
What condition is SR 10 over Swauk CR 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 June 2023.
How much traffic does SR 10 over Swauk CR carry?
About 1,512 vehicles per day (2023 count), of which roughly 13% are trucks.
How long is SR 10 over Swauk CR?
The structure is 155 ft (47.2 m) long with a longest span of 55 ft (16.8 m) and a deck 30 ft wide.
Who owns SR 10 over Swauk CR?
It is owned by the State Highway Agency.