Lake Thomaston Dam dam
Lake Thomaston Dam
Lake Thomaston Dam, located in Upson, Georgia, was completed in 1954 and serves as a vital water supply source for the region. Managed by the local government, this earth dam stands at a height of 52.7 feet and has a storage capacity of 2000 acre-feet, with a normal storage level of 1600 acre-feet. The dam spans a length of 1400 feet and covers a surface area of 73 acres, providing essential water resources for the surrounding community.
With a high hazard potential but a satisfactory condition assessment, Lake Thomaston Dam is regulated and inspected by the Georgia Safe Dams Program. Despite its uncontrolled spillway and outlet gates, the dam's risk assessment indicates a moderate level of risk. The dam is designed to withstand potential emergencies, although specific emergency action plans and risk management measures are not outlined in the available data. As a key infrastructure for water supply purposes, Lake Thomaston Dam plays a crucial role in maintaining water security and resilience in the region, highlighting the importance of sustainable water resource management in the face of climate variability and change.
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 Thomaston Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Flint River Near Culloden | 628 cfs | → |
| Flint River Near Griffin | 60 cfs | → |
| Shoal Creek At Shoal Creek Rd | 9 cfs | → |
| Line Creek Near Senoia | 16 cfs | → |
| Tobesofkee Creek Near Macon | 6 cfs | → |
| Flint River Near Lovejoy | 25 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Lake Thomaston Dam.
Boat launches
- Talbot County
- East Bagwell Road Pike County
- Highway 128 5374-5376, Roberta
- West Mcintosh Road Spalding County
- Burch Lake Road Fayette County
Campgrounds
- Old Sawmill Campsite
- Bumblebee Ridge Campsite
- Sassafras Hill Campsite
- High Falls State Park
- F.D. Roosevelt State Park
- 417
Fishing spots
- Mccant's Mill Pond
- High Falls Lake
- Griffin City Reservoir
- Lake Tobesofkee
- Indian Springs State Park Lake
- Callaway Gardens Lake
Track Lake Thomaston 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 Thomaston Dam
Where does the data for Lake Thomaston 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 Lake Thomaston Dam.