Snoqualmie Rvr RD over Patterson Creek
FairKing County, Washington · 0.8 MI N of SR-202 · Structure no. 080200000000000
- Built
- 1969
- 56 years old
- Condition
- Fair
- inspected September 2024
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 52 ft
- 1 main span
- Daily traffic
- 798
- 2020 count
- Owner
- County
- County Highway Agency
About this bridge
Snoqualmie Rvr RD over Patterson Creek is a prestressed concrete tee beam carrying Snoqualmie Rvr RD over Patterson Creek in King County, Washington. It was built in 1969, so it is 56 years old, older than the Washington average of 49.8 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 798 vehicles a day, roughly 10% of them trucks, projected to reach 1,500 by 2040. The structure is 52 ft (15.8 m) long and 28 ft wide. If it were closed, the detour would be 6.8 mi (11 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 |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Snoqualmie Rvr RD over Patterson Creek built?
It was built in 1969, making it 56 years old in 2025.
What condition is Snoqualmie Rvr RD over Patterson Creek 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 September 2024.
How much traffic does Snoqualmie Rvr RD over Patterson Creek carry?
About 798 vehicles per day (2020 count), of which roughly 10% are trucks.
How long is Snoqualmie Rvr RD over Patterson Creek?
The structure is 52 ft (15.8 m) long with a longest span of 50 ft (15.2 m) and a deck 28 ft wide.
Who owns Snoqualmie Rvr RD over Patterson Creek?
It is owned by the County Highway Agency.