Chennault Lake Dam dam
Chennault Lake Dam
Chennault Lake Dam in Mableton, Georgia, is a private earth dam primarily used for recreation purposes. The dam stands at a height of 26.2 feet with a hydraulic height of 24.2 feet, creating a reservoir with a maximum storage capacity of 80.7 acre-feet and a normal storage level of 45 acre-feet. The dam spans a length of 174 feet and covers a surface area of 5 acres, providing a serene environment for outdoor activities.
Despite being classified as having a low hazard potential, the condition of Chennault Lake Dam is currently not rated, with the last inspection taking place in July 2018. The risk assessment for the dam is moderate, indicating the need for ongoing monitoring and potential risk management measures. While the dam is unregulated by the state and lacks certain safety features like controlled spillways and outlet gates, it remains a popular destination for recreational enthusiasts in Douglas County.
Located within the Mobile District of the US Army Corps of Engineers, Chennault Lake Dam offers a tranquil retreat for visitors seeking a peaceful setting for water-based activities. With its scenic surroundings and moderate risk level, the dam serves as a reminder of the importance of maintaining and monitoring water resources to ensure the safety and enjoyment of all who frequent the area.
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 Chennault Lake Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Sweetwater Creek Below Austell | 66 cfs | → |
| Utoy Creek At Great Southwest Pkwy Nr Atlanta | 8 cfs | → |
| Sweetwater Creek Near Austell | 66 cfs | → |
| Nickajack Creek At Us 78/278 | 7 cfs | → |
| Chattahoochee River Near Fairburn | 1,200 cfs | → |
| Proctor Creek At Jackson Parkway | 3 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Chennault Lake Dam.
Boat launches
- Hooch Boat Ramp
- Cobb Parkway South Vinings
- West Palisades Vinings
- Riveredge Lane Northwest Sandy Springs
- Johnson Ferry Road Southeast Sandy Springs
- Peachtree Parkway 488, Shake Rag
Campgrounds
- Dobbins Lakeside Military
- Cochran Mill County Park
- Old Hwy 41 - Allatoona Lake
- World Famous Lake Military - Atlanta Nas
- Clark Creek South - Allatoona Lake
- Lake Allatoona Military - Fort Mcpherson
Fishing spots
Track Chennault 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 Chennault Lake Dam
Where does the data for Chennault 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 Chennault Lake Dam.