Republic Mine Tailings Pond Dam Tertiary dam
Republic Mine Tailings Pond Dam Tertiary
The Republic Mine Tailings Pond Dam Tertiary, also known as the Tertiary System Dike, is a privately owned structure located in Marquette, Michigan. Completed in 1973, this earth dam stands at a height of 16 feet and stretches for 6,340 feet, with a primary purpose of containing tailings. The dam has a capacity for 1,000 acre-feet of water, with a normal storage level of 800 acre-feet, serving as a vital component in managing mining waste in the region.
Situated near the Michigamme River tributary, the Republic Mine Tailings Pond Dam Tertiary is regulated by the Michigan Department of Environment, Great Lakes, and Energy (DEGLE). Despite having a low hazard potential, the dam is classified as having a very high risk due to its critical role in protecting the surrounding environment from potential water contamination. Regular inspections and enforcement actions ensure the structure's integrity, making it a crucial asset in water resource management in the area.
With controlled spillways and a maximum discharge capacity of 100 cubic feet per second, the Republic Mine Tailings Pond Dam Tertiary is equipped to handle excess water flow effectively. While its condition assessment is currently not rated, the dam's risk management measures and emergency preparedness ensure that any potential issues are addressed promptly. This structure serves as a testament to the importance of responsible water resource management and climate resilience in the face of evolving environmental challenges.
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 Republic Mine Tailings Pond Dam Tertiary -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Greenwood Release Near Greenwood | 25 cfs | → |
| Middle Branch Escanaba River At Humboldt | 20 cfs | → |
| Greenwood Diversion Near Greenwood | 17 cfs | → |
| Schweitzer Creek Near Palmer | 6 cfs | → |
| Michigamme River Near Crystal Falls | 668 cfs | → |
| Middle Branch Escanaba River Nr Princeton | 154 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Republic Mine Tailings Pond Dam Tertiary.
Boat launches
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Campgrounds
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Fishing spots
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River runs
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About Republic Mine Tailings Pond Dam Tertiary
Where does the data for Republic Mine Tailings Pond Dam Tertiary 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 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.