Jean Lake Dam dam
Jean Lake Dam
Jean Lake Dam, also known as Twin Lakes & Crabtree Orchards Reservoir, is a private dam located in King County, Washington. Built in 1963, this earth dam stands at a hydraulic height of 15 feet and a structural height of 12 feet, providing recreational opportunities for visitors in the area. With a normal storage capacity of 100 acre-feet and a drainage area of 1.33 square miles, Jean Lake Dam plays a vital role in water resource management in the region.
Managed by the Washington Department of Ecology, Jean Lake Dam has a low hazard potential and is currently rated as "Not Rated" in terms of condition assessment. While the dam has not been inspected recently, it is under state regulation, inspection, and enforcement to ensure its safety and compliance with standards. The dam's purpose primarily revolves around recreation, offering a serene and picturesque setting for outdoor enthusiasts to enjoy.
Situated along Joes Creek and surrounded by the natural beauty of the Pacific Northwest, Jean Lake Dam serves as a tranquil retreat for locals and tourists alike. With its stone core and soil foundation, the dam stands as a testament to responsible water resource management and environmental stewardship. As climate change continues to impact water systems, Jean Lake Dam remains a key structure in maintaining water supply and supporting the local ecosystem in King County.
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 Jean Lake Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Puyallup River At Puyallup | 2,320 cfs | → |
| Clarks Creek At Tacoma Road Near Puyallup | 130 cfs | → |
| Green River Near Auburn | 540 cfs | → |
| Leach Creek Near Fircrest | 2 cfs | → |
| Lake Tapps Diversion At Dieringer | 23 cfs | → |
| Mill Creek At Earthworks Park At Kent | 1 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Jean Lake Dam.
Boat launches
- North Lake Fishing Access Federal Way
- King County
- Dockton Road Southwest 25905, Vashon
- Southwest Harbor Drive 8900, Vashon
- Lake Fenwick Trail Kent
- Gig Harbor Public Boat Launch
Campgrounds
- Dash Point Campground
- Dash Point State Park
- Point Robinson Campground
- Gig Harbor Rv Resort
- Holiday Park Military - Mcchord Afb
- Kopachuck State Park
Paddle runs
- Huckleberry Creek To Confluence With Clearwater River
- 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
- Confluence With Ipsut Creek To Western Boundary Of Mount Rainier National Park
- Brothers Wilderness Boundary To Olympic Nf Boundary
Track Jean Lake Dam 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 Jean Lake Dam
Where does the data for Jean Lake Dam 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 Low 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 Jean Lake Dam.