Mixon Lake Dam dam
Mixon Lake Dam
Mixon Lake Dam, also known as Joyce Gregory Dam, is a private-owned structure located in Aiken, South Carolina. Completed in 1956, this earth dam stands at a height of 24 feet and spans a length of 430 feet, creating a reservoir with a storage capacity of 100 acre-feet. The primary purpose of Mixon Lake Dam is for recreation, providing a tranquil spot for water resource and climate enthusiasts to enjoy the surrounding natural beauty.
Despite its low hazard potential, Mixon Lake Dam has been assessed as being in poor condition as of August 2017. The dam is regulated by the South Carolina Department of Health and Environmental Control (SC DHEC), with state permitting, inspection, and enforcement in place to ensure its safety and compliance. The dam features an uncontrolled spillway type and is situated on TR-Town Creek, enhancing its recreational appeal while also serving as a vital water resource within the area.
With its moderate risk assessment and poor condition rating, Mixon Lake Dam presents an opportunity for stakeholders to implement necessary risk management measures. As a designated Earth dam with buttress core types, Mixon Lake Dam serves as a valuable asset for the community, offering both recreational opportunities and the essential function of water storage. As water resource and climate enthusiasts continue to appreciate the beauty and functionality of Mixon Lake Dam, efforts to improve its condition and safety will be crucial for its long-term sustainability.
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 Mixon Lake Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Savannah River At Augusta | 3,780 cfs | → |
| Augusta Canal Nr Augusta (Upper) | 2,240 cfs | → |
| Butler Creek Below 7th Avenue | 8 cfs | → |
| Spirit Creek At Us 1 | 9 cfs | → |
| Brier Creek Near Waynesboro | 92 cfs | → |
| Mctier Creek (Rd 209) Near Monetta | 1 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Mixon Lake Dam.
Boat launches
- Burnettown
- Mccormick County
- Columbia County
- Saint John's Road, Clarks Hill
- Lake Springs Road Columbia County
Campgrounds
- Aiken State Park
- Lake Leitner Military
- Lick Fork Lake Recreation Area
- Lick Fork Lake
- Barnwell State Park
Fishing spots
- Lake Olmstead
- Gordon Lake
- Lick Fork Lake
- J. Strom Thurmond Reservoir
- Magnolia Springs State Park Lake
- Cherokee Creek
Track Mixon 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 Mixon Lake Dam
Where does the data for Mixon 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 Mixon Lake Dam.