Medlock Lake Dam dam
Medlock Lake Dam
Medlock Lake Dam, located in Norcross, Georgia, is a private structure primarily used for recreation. Built by Walden, Asshworth & Associates, Inc., this Earth-type dam stands at a height of 14.1 feet and has a storage capacity of 86 acre-feet. Despite being unregulated by the state, the dam is deemed to have low hazard potential and moderate risk, making it a relatively safe structure.
Although the exact year of completion and other details are not provided in the data, Medlock Lake Dam's purpose for recreation and its serene location within Fulton County, Georgia, make it an attractive spot for water resource and climate enthusiasts. The dam's uncontrolled spillway and outlet gates, along with its low hazard potential, contribute to its overall safety. With its moderate risk assessment, visitors can enjoy the recreational offerings of Medlock Lake Dam while appreciating its engineering design.
While the dam may not be actively monitored by state agencies, its design and purpose make it a valuable asset for the local community. The dam's structural integrity, combined with its tranquil surroundings, provide a unique opportunity for outdoor enthusiasts to enjoy the beauty of water resources in Georgia. As a privately-owned structure, Medlock Lake Dam represents a harmonious blend of human engineering and natural landscapes, making it a captivating destination for those interested in water resource management and climate conservation.
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 Medlock Lake Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Chattahoochee River Near Norcross | 1,270 cfs | → |
| Big Creek Near Alpharetta | 33 cfs | → |
| Dick Creek At Old Atlanta Rd | 3 cfs | → |
| Suwanee Creek At Suwanee | 19 cfs | → |
| Crooked Creek Near Norcross | 2 cfs | → |
| Chattahoochee River Above Roswell | 623 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Medlock Lake Dam.
Boat launches
- Saint Ives Country Club Parkway Johns Creek
- Chattahochee River Park Peachtree Corners
- Lake Windward Landing 139, Alpharetta
- Johnson Ferry Road Southeast Sandy Springs
- Kings Point Drive Forsyth County
- Van Pugh North Park
Campgrounds
- Sawnee
- Bald Ridge Creek
- Shoal Creek - Lake Lanier
- Shady Grove - Lake Lanier
- Stone Mountain Park Campground
- Chestnut Ridge - Lake Lanier
Fishing spots
Track Medlock 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 Medlock Lake Dam
Where does the data for Medlock 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 Medlock Lake Dam.