Mcneely - Hannah Lake Dam dam
Mcneely - Hannah Lake Dam
Mcneely - Hannah Lake Dam, located in Pine Hill Environs, Georgia, is a privately owned structure primarily used for recreation. Built in 1956 by the Soil Conservation Service (SCS), this Earth-type dam stands at a height of 26 feet with a hydraulic height of 34 feet. The dam's reservoir has a storage capacity of 130 acre-feet, providing a surface area of 8 acres for recreational activities such as fishing and boating.
Despite its low hazard potential, the dam has not been rated for its condition assessment as of the last inspection conducted in February 2003. However, with an inspection frequency of every 5 years, the dam's risk assessment is considered moderate. While the dam has an uncontrolled spillway and outlet gates, there are no associated structures or locks. The risk management measures and emergency action plan for the dam are currently not specified in the available data, leaving room for further evaluation and improvement to ensure the safety and stability of the structure.
Overall, Mcneely - Hannah Lake Dam serves as a vital recreational resource in Jefferson County, Georgia, providing opportunities for outdoor enthusiasts to enjoy the surrounding natural environment. As climate change continues to impact water resources and infrastructure, ongoing monitoring and maintenance of the dam will be essential to mitigate potential risks and ensure its long-term sustainability for future generations to enjoy.
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 Mcneely - Hannah Lake Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Ogeechee River At Midville | 219 cfs | → |
| Williamson Swamp Creek At Davisboro | 30 cfs | → |
| Brier Creek Near Waynesboro | 99 cfs | → |
| Beaverdam Creek Near Sardis | 3 cfs | → |
| Spirit Creek At Us 1 | 9 cfs | → |
| Buffalo Creek At Ga 272 | 21 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Mcneely - Hannah Lake Dam.
Campgrounds
- Magnolia Springs State Park
- Hamburg State Park
- Primative 5
- Primative 4
- Lake Leitner Military
- George L Smith State Park
Fishing spots
Track Mcneely - Hannah 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 Mcneely - Hannah Lake Dam
Where does the data for Mcneely - Hannah 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 Mcneely - Hannah Lake Dam.