Hidden Lake Dam dam
Hidden Lake Dam
Hidden Lake Dam is a private earth dam located in Fannin, Georgia, with a height of 25 feet and a storage capacity of 77 acre-feet. Built by the Natural Resources Conservation Service, the dam serves a low hazard potential and has a moderate risk assessment rating. Despite not being regulated by the state, the dam has not been inspected since January 2013, and its condition remains unrated.
Situated within the Mobile District of the US Army Corps of Engineers, Hidden Lake Dam features uncontrolled spillways and outlet gates. While it does not have a designated primary purpose, the dam stands as a vital structure for managing water resources in the region. With a capacity to store up to 77 acre-feet of water, the dam plays a crucial role in mitigating flood risks and ensuring water availability for various purposes in the area.
Although Hidden Lake Dam has not undergone recent inspections or condition assessments, its low hazard potential and moderate risk assessment suggest that it is in stable condition. While the dam may not be directly regulated by the state, its presence highlights the importance of private dams in safeguarding water resources and adapting to the changing climate patterns in Georgia.
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 Hidden Lake Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Ocoee River At Copperhill | 256 cfs | → |
| Toccoa River Near Dial | 265 cfs | → |
| Mill Creek Near Crandall | 7 cfs | → |
| Cartecay River Near Ellijay | 156 cfs | → |
| Coosawattee River Near Ellijay | 280 cfs | → |
| Conasauga River Near Eton | 161 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Hidden Lake Dam.
Boat launches
- Toccoa Avenue 104, Mccaysville
- Mallard Point Road 109, Fannin County
- Powerhouse Road 820-832, Reliance
- Apalachia Powerhouse Launch
- Sugar Loaf Drive Polk County
- Ellis Creek Road 155, Reliance
Campgrounds
- Tumbling Creek
- Tumbling Creek Campground
- Thunder Rock
- Thunder Rock Campground
- Jacks River Fields
- Jacks River Fields Campground
Fishing spots
Paddle runs
- Southern Boundary Cohutta Wilderness Near Peter Cove To Northern Boundary Cohutta Wilderness Near Alaculsy
- Northern Boundary Cohutta Wilderness To Confluence With Conasauga River
- Nf Boundary To Taylor's Creek In Cherokee Nf (Tn)
- Source In Cohutta Wilderness To Nf Boundary North Of Murray's Lake
- Taylors Creek (Rm 74.5) To Nf Boundary (Rm 70.0)
- Apalachia Powerhouse (Rm 53.5) To Us411 Bridge (Rm 43.0)
Track Hidden Lake Dam 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 Hidden Lake Dam
Where does the data for Hidden Lake Dam 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 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 Hidden Lake Dam.