Upper Twin Lakes Dam dam
Upper Twin Lakes Dam
Upper Twin Lakes Dam, located in Senoia, Georgia, serves as a crucial water resource for fire protection and as a small fish pond. This private earth dam, with a height of 14 feet and a hydraulic height of 10.6 feet, has a storage capacity of 71.5 acre-feet and covers a surface area of 11 acres. While the dam is not regulated by the state and has a low hazard potential, it plays a vital role in maintaining water levels for various purposes in the area.
Despite being of moderate risk according to assessments, Upper Twin Lakes Dam has not been rated for its condition. The dam, constructed with a buttress core type, spans 587 feet in length and is built on an unlisted or unknown foundation. With uncontrolled spillways and outlets, the dam's maintenance and inspection status remain unknown. Nonetheless, the structure's significance in providing water resources for the community cannot be understated, making it a focal point for water resource and climate enthusiasts interested in the region's hydrological infrastructure.
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 Upper Twin Lakes Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Line Creek Near Senoia | 16 cfs | → |
| Flint River Near Griffin | 57 cfs | → |
| Shoal Creek At Shoal Creek Rd | 9 cfs | → |
| Flint River Near Lovejoy | 25 cfs | → |
| Pates Creek At Buster Lewis Rd Near Flippen | 13 cfs | → |
| Chattahoochee River Near Whitesburg | 1,050 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Upper Twin Lakes Dam.
Boat launches
- Burch Lake Road Fayette County
- West Mcintosh Road Spalding County
- Pine Crest Drive 127, Peachtree City
- 1124 Peachtree City
- Peachtree Parkway 488, Shake Rag
- East Bagwell Road Pike County
Campgrounds
- Cochran Mill County Park
- Mcintosh Reserve Park
- Chattahoochee Bend State Park
- High Falls State Park
- Old Sawmill Campsite
- Bumblebee Ridge Campsite
Fishing spots
- Padgett Lake
- Griffin City Reservoir
- Jester Creek
- Clayton County International Park
- High Falls Lake
- Chapel Hill Park
Track Upper Twin Lakes 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 Upper Twin Lakes Dam
Where does the data for Upper Twin Lakes 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 Upper Twin Lakes Dam.