Mcneel Lake Dam dam
Mcneel Lake Dam
Mcneel Lake Dam, located in Cobb, Georgia, is a privately-owned structure primarily used for recreation. Built in 1965, this earth dam stands at a height of 39 feet and has a maximum storage capacity of 162 acre-feet. With a normal storage capacity of 117 acre-feet and a surface area of 10 acres, this dam provides a picturesque setting for various water-based activities.
Despite its recreational purpose, Mcneel Lake Dam has been classified as having a high hazard potential, although its condition assessment in 2017 was deemed satisfactory. The dam is regulated by the Georgia Safe Dams Program and undergoes regular inspections to ensure its structural integrity. With an uncontrolled spillway and outlet gates, the dam poses moderate risks, but appropriate risk management measures are in place to mitigate any potential hazards.
For water resource and climate enthusiasts, Mcneel Lake Dam offers a fascinating insight into the intersection of human infrastructure and natural landscapes. Its design by the Natural Resources Conservation Service and the ongoing regulatory oversight by the state of Georgia highlight the importance of balancing recreational benefits with safety considerations in the management of water resources. As a significant landmark in the Marietta Community, this dam serves as a reminder of the complex relationship between humans and the environment in the context of water management.
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 Mcneel Lake Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Noses Creek At Powder Springs Rd | 8 cfs | → |
| Sope Creek Near Marietta | 12 cfs | → |
| Nickajack Creek At Us 78/278 | 9 cfs | → |
| Noonday Creek At Hawkins Store Rd | 9 cfs | → |
| Chattahoochee River At Atlanta | 1,440 cfs | → |
| Sweetwater Creek Near Austell | 89 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Mcneel Lake Dam.
Boat launches
- Riveredge Lane Northwest Sandy Springs
- Cobb Parkway South Vinings
- West Palisades Vinings
- Johnson Ferry Road Southeast Sandy Springs
- North Main Street Southeast Bartow County
- Gayle Drive Southeast Bartow County
Campgrounds
- Dobbins Lakeside Military
- Clark Creek South - Allatoona Lake
- Old Hwy 41 - Allatoona Lake
- World Famous Lake Military - Atlanta Nas
- Clark Creek North - Allatoona Lake
- Lake Allatoona Military - Fort Mcpherson
Fishing spots
Track Mcneel 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 Mcneel Lake Dam
Where does the data for Mcneel 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 Mcneel Lake Dam.