White Pine Mine North Tailings Dam #2 dam
White Pine Mine North Tailings Dam #2
White Pine Mine North Tailings Dam #2, also known as North Pond #2, is a private structure located in Ontonagon, Michigan. This earth dam stands at a height of 75 feet and has a length of 42,240 feet. Completed in 1971, this dam serves the primary purpose of storing tailings from mining operations, with a maximum storage capacity of 39,000 acre-feet and a normal storage level of 27,000 acre-feet.
Situated near Native Creek, this dam has a significant hazard potential and is classified as having a satisfactory condition assessment as of May 2019. It is regularly inspected every four years to ensure its structural integrity and adherence to safety standards. Despite its moderate risk level, there are no emergency action plans in place, raising concerns about the preparedness for potential incidents or disasters.
Managed by a private entity, White Pine Mine North Tailings Dam #2 plays a crucial role in the local water resource management and environmental protection efforts. Its presence highlights the importance of proactive monitoring and maintenance practices to mitigate risks and safeguard both the surrounding ecosystem and nearby communities from potential hazards.
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 White Pine Mine North Tailings Dam #2 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| West Branch Ontonagon River Near Bergland | 55 cfs | → |
| Ontonagon River Near Rockland | 599 cfs | → |
| Presque Isle River Near Tula | 66 cfs | → |
| Bond Falls Canal Near Paulding | 91 cfs | → |
| Black River Near Bessemer | 25 cfs | → |
| Middle Branch Ontonagon River Near Paulding | 150 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near White Pine Mine North Tailings Dam #2.
Boat launches
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Campgrounds
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Fishing spots
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River runs
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About White Pine Mine North Tailings Dam #2
Where does the data for White Pine Mine North Tailings Dam #2 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 below 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.
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.