Snoqualmie Ridge Osprey Ct Pond D1, also known as Snoqualmie Ridge Douglas Ave Pond D1 Dam, is a local government-owned structure located in King County, Washington.
Wind
Humidity
Completed in 1999 by ESM Engineers, this earth dam serves the primary purpose of flood risk reduction along the Unnamed Tr. - Snoqualmie River. With a hydraulic height of 10 feet and a structural height of 9 feet, this dam has a capacity to store 18 acre-feet of water and covers a surface area of 2 acres.
The dam has a fair condition assessment as of September 2016, with a high hazard potential due to its location and purpose. It is regulated by the Washington Department of Ecology, with regular state inspections and enforcement measures in place to ensure its safety and functionality. Located in a congressional district represented by Kim Schrier (D), this dam plays a crucial role in mitigating flood risks in the surrounding area, safeguarding communities and protecting the local environment.
With a drainage area of 7.4 square miles and a maximum discharge of 44 cubic feet per second, Snoqualmie Ridge Osprey Ct Pond D1 is an essential part of the flood control infrastructure in the region. Its design and construction uphold safety standards, and regular monitoring and maintenance help to ensure its continued effectiveness in reducing flood risks. As a key component in the flood risk reduction strategy, this dam underscores the importance of sustainable water resource management in the face of climate variability and change.
Year Completed |
1999 |
Dam Length |
510 |
River Or Stream |
Unnamed Tr. - Snoqualmie River |
Primary Dam Type |
Earth |
Surface Area |
2 |
Hydraulic Height |
10 |
Drainage Area |
7.4 |
Nid Storage |
18 |
Structural Height |
9 |
Hazard Potential |
High |
Foundations |
Soil |
Nid Height |
10 |
Raging River Near Fall City
|
175cfs |
Snoqualmie River Near Snoqualmie
|
4380cfs |
Sf Snoqualmie River At North Bend
|
1100cfs |
Issaquah Creek Near Hobart
|
136cfs |
Issaquah Creek Near Mouth Near Issaquah
|
300cfs |
Cedar River At Cedar Falls
|
3900cfs |
| Location | Reservations | Toilets |
|---|---|---|
Tolt-MacDonald Park Campground
|
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Site 27
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Tolt MacDonald Park
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Site 36
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Site 37
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Site 38
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