Upper Deadfish Impoundment dam
Upper Deadfish Impoundment
Upper Deadfish Impoundment in Carlton, Minnesota, is a water resource managed by the DOI BIA with a storage capacity of 375 acre-feet. The dam stands at a height of 15 feet and has an undetermined hazard potential. Despite being not regulated by the state, the impoundment serves an unknown primary purpose and lacks detailed information on its design and construction.
Located within the St. Paul District, Upper Deadfish Impoundment is currently assessed as not available for condition assessment, with its emergency action plan status and risk management measures remaining undisclosed. The impoundment's spillway width is listed as 0, indicating a potential need for further infrastructure or maintenance. While the structure is not under the jurisdiction of state agencies for inspection or enforcement, its risk assessment and inundation maps are yet to be prepared and updated.
With its unique name and intriguing characteristics, Upper Deadfish Impoundment presents an opportunity for water resource and climate enthusiasts to delve into the complexities of its management and potential environmental impact. The impoundment's undetermined hazard potential and lack of detailed information on its purpose and infrastructure warrant further investigation and research, making it a fascinating case study for those interested in water resource management and climate resilience.
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 Upper Deadfish Impoundment -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| St. Louis River At Scanlon | 1,670 cfs | → |
| Nemadji River Near South Superior | 104 cfs | → |
| Kettle River Below Sandstone | 267 cfs | → |
| Knife River Near Two Harbors | 29 cfs | → |
| Mississippi River At Aitkin | 1,360 cfs | → |
| Mississippi River At Grand Rapids | 255 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Upper Deadfish Impoundment.
Boat launches
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Campgrounds
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Fishing spots
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River runs
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About Upper Deadfish Impoundment
Where does the data for Upper Deadfish Impoundment 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 Undetermined 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.