Crabapple Lake Dam dam
Crabapple Lake Dam
Crabapple Lake Dam in Roswell, Georgia, was completed in 1986 and serves as a vital recreational area for water resource and climate enthusiasts. As a privately owned structure on the Little River, the dam stands at 31.3 feet tall with a maximum storage capacity of 352.5 acre-feet. The dam's primary purpose is for recreation, providing a serene environment for outdoor activities such as fishing, boating, and wildlife observation.
Despite its low hazard potential and moderate risk assessment, Crabapple Lake Dam has not been rated for its overall condition. With an uncontrolled spillway and outlet gates, the dam remains a safe and enjoyable destination for visitors seeking a peaceful escape in Cherokee County. Regular inspections ensure the dam's structural integrity, with the last assessment conducted in April 2019. As an integral part of the local ecosystem, Crabapple Lake Dam continues to play a significant role in water management and conservation efforts in the region.
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 Crabapple Lake Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Big Creek Near Alpharetta | 37 cfs | → |
| Noonday Creek At Shallowford Road | 13 cfs | → |
| Noonday Creek At Hawkins Store Rd | 6 cfs | → |
| Chattahoochee River Above Roswell | 615 cfs | → |
| Etowah River At Canton | 364 cfs | → |
| Chattahoochee River Below Morgan Falls Dam | 1,010 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Crabapple Lake Dam.
Boat launches
- Lake Windward Landing 139, Alpharetta
- Johnson Ferry Road Southeast Sandy Springs
- Chattahochee River Park Peachtree Corners
- Saint Ives Country Club Parkway Johns Creek
- Overlook Drive 1 163, 30102
- Riveredge Lane Northwest Sandy Springs
Campgrounds
- Sweetwater - Allatoona Lake
- Payne - Allatoona Lake
- Victoria - Allatoona Lake
- Dobbins Lakeside Military
- Clark Creek North - Allatoona Lake
- Clark Creek South - Allatoona Lake
Fishing spots
Paddle runs
Track Crabapple 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 Crabapple Lake Dam
Where does the data for Crabapple 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 Crabapple Lake Dam.