Lake Ivanhoe Dam dam
Lake Ivanhoe Dam
Lake Ivanhoe Dam, located in DeKalb, Georgia, along Lucky Shoals Creek, was completed in 1950 and stands at a height of 14 feet with a hydraulic height of 11 feet. This private dam, primarily designed for recreational purposes, has a storage capacity of 62 acre-feet and covers a surface area of 11 acres. Despite its low hazard potential and moderate risk assessment, the dam has not been rated for its condition and lacks recent inspection data.
With a length of 360 feet, Lake Ivanhoe Dam features an uncontrolled spillway and outlet gates, making it a popular spot for outdoor activities and water enthusiasts in the city of Lilburn. While the dam is not regulated by the state and has no associated structures, it remains a significant landmark within the community. The dam's risk management measures and emergency preparedness status are currently unknown, highlighting the need for further assessment and monitoring to ensure the safety of the surrounding area.
As climate change continues to impact water resources and infrastructure, Lake Ivanhoe Dam serves as a reminder of the importance of maintaining and assessing aging dams for potential risks and vulnerabilities. With its picturesque location and recreational purpose, the dam remains a valuable asset to the local community, but ongoing evaluation and maintenance are vital to safeguarding against any unforeseen hazards that may arise in the future.
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 Lake Ivanhoe Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| N.F. Peachtree Creek At Graves Rd | 0 cfs | → |
| Crooked Creek Near Norcross | 2 cfs | → |
| N.F. Peachtree Creek | 10 cfs | → |
| Chattahoochee River Near Norcross | 1,810 cfs | → |
| S.F. Peachtree Creek | 7 cfs | → |
| Nancy Creek At Rickenbacker Drive | 7 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Lake Ivanhoe Dam.
Boat launches
- Chattahochee River Park Peachtree Corners
- Saint Ives Country Club Parkway Johns Creek
- Johnson Ferry Road Southeast Sandy Springs
- West Palisades Vinings
- Riveredge Lane Northwest Sandy Springs
- Cobb Parkway South Vinings
Campgrounds
- Stone Mountain Park Campground
- Stone Mountain Campground
- Dobbins Lakeside Military
- James Shackleford County Park
- Sawnee
- Shoal Creek - Lake Lanier
Fishing spots
Track Lake Ivanhoe 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 Lake Ivanhoe Dam
Where does the data for Lake Ivanhoe 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 Lake Ivanhoe Dam.