Mattie J'S Pond Dam dam
Mattie J'S Pond Dam
Mattie J's Pond Dam, located in Lee, South Carolina, stands as a testament to recreational water resource management since its completion in 1931. This private earth dam, with a height of 17 feet and a length of 350 feet, serves primarily for recreation purposes, offering a serene setting for outdoor enthusiasts to enjoy the 164-acre NID storage reservoir. Despite its historical significance, the dam's infrastructure condition has been assessed as poor, highlighting the need for ongoing maintenance and potential improvements to ensure its long-term safety and functionality.
This dam on Casual Branch, a tributary of the Congaree River, is not state-regulated or permitted, posing unique challenges for its inspection and enforcement. The dam's undetermined hazard potential and outdated emergency action plan underscore the importance of proactive risk assessment and management to mitigate any potential threats to downstream communities. With a focus on enhancing safety protocols and conducting regular inspections, stakeholders can work towards preserving Mattie J's Pond Dam as a valuable recreational asset while prioritizing public safety and environmental conservation in the face of evolving climate conditions.
As water resource and climate enthusiasts, it is crucial to recognize the vital role that dams like Mattie J's Pond Dam play in providing recreational opportunities and water storage capabilities. By advocating for sustainable infrastructure practices and investing in comprehensive risk management strategies, we can ensure the continued resilience of these structures in the face of changing environmental conditions and safeguard the well-being of local communities that rely on them for recreation and water resource management.
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 Mattie J'S Pond Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Lynches River Near Bishopville | 136 cfs | → |
| Black Creek Near Hartsville | 46 cfs | → |
| Lynches River At Effingham | 153 cfs | → |
| Wateree River Nr. Camden | 3,960 cfs | → |
| Black Creek Near Quinby | 308 cfs | → |
| Wateree R. Bl Eastover | 2,400 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Mattie J'S Pond Dam.
Campgrounds
Track Mattie J'S 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 Mattie J'S Pond Dam
Where does the data for Mattie J'S 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 Undetermined 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 Mattie J'S Pond Dam.