Snoqualmie Ridge Osprey Ct Pond D1 dam
Snoqualmie Ridge Osprey Ct Pond D1
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. 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.
Dam data reference
Condition Assessment
- Satisfactory
- No existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
- Fair
- No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action.
- Poor
- A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency.
- Unsatisfactory
- A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
- Not Rated
- The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Hazard Potential Classification
- High
- Dams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
- Significant
- Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environmental damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
- Low
- Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
- Undetermined
- Dams for which a downstream hazard potential has not been designated or is not provided.
Plan around the weather
Same NOAA / yr.no feed Snoflo's iOS app uses. Watch the precipitation column on the meteogram -- rain on the basin upstream typically lifts inflow 24-72 hours later.
Next 5 days, hour by hour
Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.
5-day forecast table
Every 3 hours, broken out across temperature, snow, rain, humidity, and wind. Each cell is colour-coded relative to the column min/max.
| Time | Condition | Temp (°F) | Snow (in) | Rain (in) | Humidity (%) | Wind (mps) | Wind dir |
|---|---|---|---|---|---|---|---|
| Loading detailed forecast… | |||||||
15-day temperature & precipitation
Daily temperatures, snow, and rain projected over the next two weeks.
Nearby streamflow gauges
USGS streamgauges around Snoqualmie Ridge Osprey Ct Pond D1 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Raging River Near Fall City | 29 cfs | → |
| Snoqualmie River Near Snoqualmie | 1,540 cfs | → |
| Sf Snoqualmie River At North Bend | 354 cfs | → |
| Issaquah Creek Near Hobart | 26 cfs | → |
| Issaquah Creek Near Mouth Near Issaquah | 41 cfs | → |
| Cedar River At Cedar Falls | 98 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Snoqualmie Ridge Osprey Ct Pond D1.
Boat launches
- Southeast Fish Hatchery Road 36495-37159, Fall City
- Lake Langlois Road Northeast King County
- Northeast Tolt Hill Road 30348-30762, Carnation
- King County
- Lake Marcel Community Park
- Shady Lake Boat Ramp
Campgrounds
Paddle runs
- Snoqualmie Falls To Plum's Landing
- Confluence With Taylor River To Confluence With North Fork Snoqualmie River
- Wagner Bridge To Confluence With Middle Fork Snoqualmie River
- Quartz Road To Confluence With Middle Fork Snoqualmie River
- Alpine Lakes Wilderness Boundary To Quartz Creek Road
- Outlet Of Snoqualmie Lake To Alpine Lakes Wilderness Boundary
Track Snoqualmie Ridge Osprey Ct Pond D1 in the Snoflo app
Save this dam as a favorite and get the local NOAA / yr.no forecast plus regional flow context wherever you are.
About Snoqualmie Ridge Osprey Ct Pond D1
Where does the data for Snoqualmie Ridge Osprey Ct Pond D1 come from?
Structural and regulatory data come from the U.S. Army Corps of Engineers' National Inventory of Dams (NID). Weather forecast comes from NOAA / yr.no -- the same feed Snoflo's iOS app uses.
How often is the report updated?
NID structural data refreshes annually as the Corps publishes updated assessments. The weather forecast refreshes throughout the day.
What does the High hazard rating mean?
The Corps of Engineers' hazard potential classification grades probable consequences if the dam fails: High = probable loss of human life; Significant = no probable loss of human life but possible economic loss / environmental damage; Low = no probable loss of human life, only minor economic / environmental losses. See the Dam Data Reference card above for the full definitions.
What's "% of normal"?
The current storage value compared to the historical average storage on this calendar day. 100% = right on average; values above 100% mean above-normal storage (wet year); values below mean below-normal (dry year or drought).
Can I get alerts when storage crosses a threshold?
Yes -- alerts are managed in the Snoflo iOS app. Favorite this dam, set a threshold, and you'll get a push the moment conditions cross.
Other water bodies near here
Snoflo-tracked reservoirs and dams within driving distance of Snoqualmie Ridge Osprey Ct Pond D1.