Silver Lake Dam dam
Silver Lake Dam
Silver Lake Dam, also known as Phoebe Lake Dam, is a privately owned structure located in Chamblee, Georgia, along the Chattahoochee River. Completed in 1958, this gravity dam stands at a height of 28 feet and has a length of 235 feet, providing a storage capacity of 207 acre-feet for recreational purposes. The dam is regulated by the Georgia Safe Dams Program and undergoes regular inspections to ensure its safety and satisfactory condition.
With a high hazard potential and a moderate risk assessment rating, Silver Lake Dam poses potential risks that are carefully managed to protect the surrounding community. Despite its age, the dam has been deemed to be in satisfactory condition as of the most recent inspection in January 2021. The dam's uncontrolled spillway and outlet gates are designed to handle any excess water flow, while the dam's purpose for recreational use contributes to the local area's water resource management and climate resilience efforts.
Overall, Silver Lake Dam serves as a vital structure along the Chattahoochee River, providing both recreational amenities and essential water storage capacity. Its regulation and maintenance by the Georgia Safe Dams Program ensure that it continues to fulfill its purpose safely and effectively, contributing to the local community's water resource management and climate adaptation strategies. With its location in DeKalb County, Georgia, Silver Lake Dam stands as a testament to responsible dam management in the face of potential hazards and risks.
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 Silver Lake Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Nancy Creek At Rickenbacker Drive | 7 cfs | → |
| N.F. Peachtree Creek | 10 cfs | → |
| S.F. Peachtree Creek | 7 cfs | → |
| Chattahoochee River Below Morgan Falls Dam | 1,010 cfs | → |
| Peachtree Creek At Atlanta | 27 cfs | → |
| N.F. Peachtree Creek At Graves Rd | 0 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Silver Lake Dam.
Boat launches
- Johnson Ferry Road Southeast Sandy Springs
- West Palisades Vinings
- Riveredge Lane Northwest Sandy Springs
- Cobb Parkway South Vinings
- Chattahochee River Park Peachtree Corners
- Saint Ives Country Club Parkway Johns Creek
Campgrounds
- Dobbins Lakeside Military
- Stone Mountain Park Campground
- Stone Mountain Campground
- Payne - Allatoona Lake
- Victoria - Allatoona Lake
- Clark Creek South - Allatoona Lake
Fishing spots
Track Silver 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 Silver Lake Dam
Where does the data for Silver 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 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 Silver Lake Dam.