Atlanta Reservoir Dam No. 2 dam
Atlanta Reservoir Dam No. 2
Atlanta Reservoir Dam No. 2, also known as Hemphill No. 2, is a significant water resource infrastructure located in Fulton, Georgia. Built in 1960 by Wiedeman & Singleton Engineers, this earth dam stands at a height of 83 feet and stretches a length of 2640 feet, providing a storage capacity of 1108 acre-feet for water supply purposes. With a surface area of 31.6 acres and a drainage area of 41.2 square miles, the dam plays a crucial role in managing water resources in the region.
The dam, regulated by the Georgia SAFE DAMS Program, is inspected regularly to ensure its structural integrity. Despite being classified as having a high hazard potential, the condition assessment of Atlanta Reservoir Dam No. 2 in 2016 deemed it to be satisfactory. The dam's emergency action plan and risk management measures are in place to mitigate any potential risks associated with its operation.
Atlanta Reservoir Dam No. 2 serves as a vital component of the water supply infrastructure in the area, providing essential storage capacity and flood control measures. With its strategic location in Atlanta and its significant contribution to managing water resources, this dam is a key asset for climate and water resource enthusiasts to study and monitor for sustainable water management practices.
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 Atlanta Reservoir Dam No. 2 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Proctor Creek At Hortense Way | 5 cfs | → |
| Peachtree Creek At Atlanta | 27 cfs | → |
| Proctor Creek At Jackson Parkway | 3 cfs | → |
| Nancy Creek At West Wesley Road | 22 cfs | → |
| Chattahoochee River At Ga 280 | 841 cfs | → |
| S.F. Peachtree Creek | 6 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Atlanta Reservoir Dam No. 2.
Boat launches
- Cobb Parkway South Vinings
- West Palisades Vinings
- Riveredge Lane Northwest Sandy Springs
- Johnson Ferry Road Southeast Sandy Springs
- Hooch Boat Ramp
- Chattahochee River Park Peachtree Corners
Campgrounds
- Dobbins Lakeside Military
- Stone Mountain Park Campground
- Stone Mountain Campground
- Cochran Mill County Park
- Payne - Allatoona Lake
- Clark Creek South - Allatoona Lake
Fishing spots
Track Atlanta Reservoir Dam No. 2 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 Atlanta Reservoir Dam No. 2
Where does the data for Atlanta Reservoir Dam No. 2 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 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 Atlanta Reservoir Dam No. 2.