Lake Hamilton Dam dam
Lake Hamilton Dam
Lake Hamilton Dam in Cobb, Georgia, is a privately owned structure primarily designed for recreation purposes. The earth dam stands at a height of 30.4 feet with a hydraulic height of 26 feet, creating a reservoir with a normal storage capacity of 62 acre-feet. The dam is categorized as having a low hazard potential and moderate risk assessment, with inspections conducted every five years to ensure its safety and integrity.
Located within the Mobile District of the US Army Corps of Engineers, the Lake Hamilton Dam does not have a controlled spillway or outlet gates, relying on uncontrolled measures for water release. Despite its unknown completion date, the dam serves as a vital recreational resource for the surrounding area, offering a surface area of 6 acres for activities like boating and fishing. Though not currently rated for condition assessment, the dam's risk management measures are considered moderate, indicating a proactive approach to maintaining its safety for the community.
While the Lake Hamilton Dam has not undergone recent inspections or assessments for its emergency action plan or inundation maps, it continues to provide valuable recreational opportunities for residents of Cobb, Georgia. With its serene reservoir and scenic surroundings, the dam stands as a testament to the importance of water resource management in maintaining both environmental sustainability and public enjoyment.
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 Hamilton Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Noses Creek At Powder Springs Rd | 20 cfs | → |
| Noonday Creek At Hawkins Store Rd | 18 cfs | → |
| Noonday Creek At Shallowford Road | 25 cfs | → |
| Sope Creek Near Marietta | 15 cfs | → |
| Etowah River At Allatoona Dam | 2,890 cfs | → |
| Chattahoochee River At Atlanta | 1,040 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Lake Hamilton Dam.
Boat launches
- North Main Street Southeast Bartow County
- Gayle Drive Southeast Bartow County
- Overlook Drive 1 163, 30102
- Riveredge Lane Northwest Sandy Springs
- West Palisades Vinings
- State Highway 20 Spur Southeast 1121, Cartersville
Campgrounds
- Old Hwy 41 - Allatoona Lake
- World Famous Lake Military - Atlanta Nas
- Clark Creek South - Allatoona Lake
- Dobbins Lakeside Military
- Clark Creek North - Allatoona Lake
- Lake Allatoona Military - Fort Mcpherson
Fishing spots
Track Lake Hamilton 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 Hamilton Dam
Where does the data for Lake Hamilton 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 Hamilton Dam.