SR 10 over Abandoned Cascade RR
PoorKittitas County, Washington · 7.4 E JCT SR 970 · Structure no. 0003180A0000000
- Built
- 1947
- 78 years old
- Condition
- Poor
- inspected June 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 160 ft
- 3 main spans
- Daily traffic
- 1,512
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
SR 10 over Abandoned Cascade RR is a steel continuous stringer/multi-beam or girder carrying SR 10 over Abandoned Cascade RR in Kittitas County, Washington. It was built in 1947, so it is 78 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 160 ft (48.8 m) long and 36 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SR 10 over Abandoned Cascade RR built?
It was built in 1947, making it 78 years old in 2025.
What condition is SR 10 over Abandoned Cascade RR 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 Abandoned Cascade RR carry?
About 1,512 vehicles per day (2023 count), of which roughly 13% are trucks.
How long is SR 10 over Abandoned Cascade RR?
The structure is 160 ft (48.8 m) long with a longest span of 64 ft (19.5 m) and a deck 36 ft wide.
Who owns SR 10 over Abandoned Cascade RR?
It is owned by the State Highway Agency.