Omar Lake Dam dam
Omar Lake Dam
Omar Lake Dam, also known as Mathis Lake Dam, is a private structure located in Griffin, Georgia, within Spalding County. Built in 1935 by the late Dr. Mathis, this earth dam stands at a height of 17 feet and stretches 552 feet in length. Its primary purpose is for recreational use, providing a serene setting for visitors to enjoy the surrounding natural beauty.
With a storage capacity of 142 acre-feet and a drainage area of 418 square miles, Omar Lake Dam serves as a low-hazard structure with a moderate risk assessment. While not regulated by the state, the dam undergoes regular inspections, with the last one conducted in October 2012 at a frequency of every five years. The dam features uncontrolled spillways and outlet gates, maintaining its condition as not rated. Overall, Omar Lake Dam presents an opportunity for water resource and climate enthusiasts to appreciate its historical significance and recreational value in the heart of Georgia.
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 Omar Lake Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Shoal Creek At Shoal Creek Rd | 9 cfs | → |
| Flint River Near Griffin | 61 cfs | → |
| Flint River Near Lovejoy | 108 cfs | → |
| Line Creek Near Senoia | 14 cfs | → |
| Pates Creek At Buster Lewis Rd Near Flippen | 14 cfs | → |
| Ocmulgee River Near Jackson | 433 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Omar Lake Dam.
Boat launches
- West Mcintosh Road Spalding County
- Burch Lake Road Fayette County
- East Bagwell Road Pike County
- Pine Crest Drive 127, Peachtree City
- 1124 Peachtree City
- Peachtree Parkway 488, Shake Rag
Campgrounds
Fishing spots
- Griffin City Reservoir
- High Falls Lake
- Padgett Lake
- Indian Springs State Park Lake
- Clayton County International Park
- Jester Creek
Track Omar 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 Omar Lake Dam
Where does the data for Omar 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 Omar Lake Dam.