Beth Lake dam
Beth Lake
Beth Lake in Okanogan, Washington, is a Federal-owned recreational water resource nestled along the North Fork Beaver Creek. Managed by the USDA FS, this Earth dam stands at a height of 15 feet, offering a serene escape for fish and wildlife enthusiasts. With a spillway width of 3 feet and uncontrolled outlet gates, this dam presents a significant hazard potential, rated as moderate with a risk assessment score of 3.
Although the dam's condition is not rated, its last inspection in September 2015 ensures a level of safety for visitors. The lake covers a surface area of 115 feet and serves as a haven for outdoor activities such as fishing and wildlife observation. Despite its tranquil ambiance, the dam's strategic location and design warrant a cautious approach for water and climate enthusiasts eager to explore this hidden gem in Curlew, Washington.
For those passionate about water resources and climate conservation, Beth Lake offers a unique opportunity to appreciate nature's beauty while understanding the importance of responsible dam management. As a vital part of the forest ecosystem, this recreational spot operated by the Forest Service invites visitors to engage in sustainable recreational activities and immerse themselves in the breathtaking scenery of Okanogan, Washington.
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 Beth Lake -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Kettle River Near Ferry | 2,540 cfs | → |
| Okanogan River At Oroville | 164 cfs | → |
| Okanogan River Near Tonasket | 5,120 cfs | → |
| Similkameen River Near Nighthawk | 4,950 cfs | → |
| Kettle River Near Laurier | 4,520 cfs | → |
| Omak Creek Near Omak | 3 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Beth Lake.
Boat launches
- Southwest Bonaparte Lake Road, Tonasket
- Wayland Cove Road, Republic
- Long Lake Lane 23, Tonasket
- Deep Bay Road 98, Oroville
- Loomis-Oroville Road 322, Tonasket
- Windy Flat Road Okanogan County
Campgrounds
- Beth Lake Campground
- Beth Lake
- Bonaparte Lake Campground
- Bonaparte Lake
- Curlew Lake State Park
- Long Lake (Tonasket) - Wdfw
Track Beth Lake 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 Beth Lake
Where does the data for Beth Lake 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 Significant 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 Beth Lake.