Galena Mill No 3 Lower dam
Galena Mill No 3 Lower
Galena Mill No 3 Lower, located in Silverton, Idaho, is a privately owned structure regulated by the Idaho Department of Water Resources. This tailings dam, completed in 1979, stands at a height of 64 feet with a normal storage capacity of 130 acre-feet. Situated on Lake Creek, a tributary of the South Fork Coeur d'Alene River, this earth dam covers a surface area of 4.4 acres and features an uncontrolled spillway with a width of 90 feet.
With a significant hazard potential and a fair condition assessment as of July 2017, Galena Mill No 3 Lower poses a moderate risk in terms of potential failure. While the dam has not been modified in recent years, it undergoes inspections every four years to ensure its structural integrity. The emergency action plan status and risk management measures for this dam are currently undisclosed, indicating a need for continued monitoring and preparedness in the event of an emergency.
Enthusiasts of water resources and climate in the Shoshone County area will find Galena Mill No 3 Lower to be an intriguing structure due to its historical significance, regulatory oversight, and potential environmental impact in the region. As discussions around dam safety and emergency response strategies continue to evolve, staying informed about the condition and risk profile of dams like Galena Mill No 3 Lower is crucial for ensuring the protection of surrounding communities and ecosystems.
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 Galena Mill No 3 Lower -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Ninemile Creek Ab Mouth At Wallace | 16 cfs | → |
| Canyon Creek Ab Mouth At Wallace | 78 cfs | → |
| Sf Coeur D Alene At Elizabeth Park Nr Kellogg Id | 389 cfs | → |
| Ef Pine Creek Abv Nabob Cr Near Pinehurst Id | 5 cfs | → |
| Sf Coeur D Alene River Abv Pine Cr Nr Pinehurst Id | 365 cfs | → |
| Pine Creek Blw Amy Gulch Nr Pinehurst Id | 10 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Galena Mill No 3 Lower.
Boat launches
- Old River Road Shoshone County
- Coeur D'Alene River Road Shoshone County
- Calder Road Shoshone County
- South Mission Road Kootenai County
- Kootenai County
- Usfs Road 2229 Sanders County
Campgrounds
Track Galena Mill No 3 Lower 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 Galena Mill No 3 Lower
Where does the data for Galena Mill No 3 Lower 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 Galena Mill No 3 Lower.