Mongiove dam
Mongiove
Mongiove is a privately owned Earth dam located in Sevier, Tennessee, along the Mill Creek. Completed in 1987, this structure stands at a height of 30 feet and has a length of 100 feet, providing a storage capacity of 48 acre-feet. Despite not being state regulated or permitted, Mongiove poses a high hazard potential due to its condition assessment being labeled as "Not Rated" and its moderate risk assessment level.
With a spillway type described as "Uncontrolled" and a spillway width of 30 feet, Mongiove's emergency action plan and risk management measures are currently lacking key information, raising concerns among water resource and climate enthusiasts. The dam is situated within the Nashville District of the US Army Corps of Engineers and falls under the jurisdiction of the state of Tennessee. Although the dam has not been modified in recent years and has no associated locks or outlet gates, its high hazard potential and moderate risk level highlight the importance of regular inspections and proper maintenance to ensure the safety of downstream communities.
In the event of an emergency, Mongiove's last inspection took place in February 2019 with a scheduled inspection frequency of 5 years. Despite the lack of inundation maps, updated emergency contacts, and a comprehensive emergency action plan, the dam's risk assessment of "Moderate (3)" underscores the need for proactive measures to mitigate potential hazards and safeguard the surrounding area from the impacts of a dam failure. As enthusiasts in water resources and climate monitoring, attention to Mongiove's condition and risk management strategies is crucial to prevent any adverse consequences and promote the sustainable management of this vital water infrastructure.
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 Mongiove -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Little Pigeon River At Sevierville | 348 cfs | → |
| Little River Above Townsend | 132 cfs | → |
| Little River Near Maryville | 162 cfs | → |
| Little River Near Alcoa | 172 cfs | → |
| Oconaluftee River At Birdtown | 191 cfs | → |
| Tuckasegee River At Bryson City | 695 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Mongiove.
Boat launches
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Campgrounds
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Fishing spots
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River runs
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More reservoirs
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About Mongiove
Where does the data for Mongiove 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 High 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.