Leo Hanna Pond Dam dam
Leo Hanna Pond Dam
Leo Hanna Pond Dam, located in Florence, South Carolina, was completed in 1955 and serves as a recreational spot for water enthusiasts. The earth dam stands at a height of 11 feet and spans 455 feet in length, with a storage capacity of 105 acre-feet. The dam overlooks the TR-LAKE SWAMP, providing a serene backdrop for outdoor activities.
Owned privately, Leo Hanna Pond Dam is regulated by the South Carolina Department of Health and Environmental Control, with state permitting, inspection, and enforcement in place to ensure safety standards are met. Despite its low hazard potential, the dam's condition is currently not rated, with the last inspection conducted in February 2013. With a surface area of 15 acres and a normal storage capacity of 60 acre-feet, Leo Hanna Pond Dam continues to attract visitors seeking a peaceful retreat surrounded by nature.
Although Leo Hanna Pond Dam does not have a designated spillway, its primary purpose remains focused on recreation. With Tom Rice (R) serving as the Congressional Representative for the area, the dam provides a haven for water resource and climate enthusiasts alike. As efforts to maintain and monitor the dam continue, it stands as a symbol of responsible water management in the region, blending leisure with environmental stewardship for all to enjoy.
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 Leo Hanna Pond Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Black River At Kingstree | 338 cfs | → |
| Lynches River At Effingham | 1,300 cfs | → |
| Pee Dee River Below Pee Dee | 3,980 cfs | → |
| Little Pee Dee R. At Galivants Ferry | 757 cfs | → |
| Pee Dee River At Hwy 701 Nr Bucksport | 1,840 cfs | → |
| Pee Dee River At Peedee | 3,710 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Leo Hanna Pond Dam.
Boat launches
- Browns Ferry Road Georgetown County
- Pine Tree Landing
- Huggins Landing Road 501, Horry County
- Ernest L. Anderson Bridge Marion County
- Williamsburg County
Fishing spots
Track Leo Hanna Pond 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 Leo Hanna Pond Dam
Where does the data for Leo Hanna Pond 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 Leo Hanna Pond Dam.