Gro-Mor Pond Dam Dam
Gro-Mor Pond Dam
Gro-Mor Pond Dam, also known as John Curnow Pond Dam, is a private dam located in Anderson, South Carolina. Built in 1958 by the USDA NRCS, this earth dam stands at a height of 26 feet and spans 765 feet in length. Its primary purpose is flood risk reduction, with an associated storage capacity of 142 acre-feet and a surface area of 12 acres.
Despite its low hazard potential, the dam is currently in poor condition as of the last assessment in June 2017. It is regulated by the South Carolina Department of Health and Environmental Control (DHEC) and undergoes inspections every five years. The dam features an uncontrolled spillway and outlet gates, and its risk assessment categorizes it as moderate. Emergency action plans are not currently prepared or up-to-date for the dam.
For water resource and climate enthusiasts, Gro-Mor Pond Dam presents an intriguing case study in dam management and maintenance. With its historical significance and potential impact on the surrounding area, the dam's condition and risk assessment serve as important indicators for ongoing monitoring and potential improvement efforts. Its association with the USDA NRCS and use for flood risk reduction and irrigation highlight the intersection of water resource management and agricultural practices in the region, making it a valuable site for further study and conservation efforts.
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 Gro-Mor Pond Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Saluda River Near Greenville | 285 cfs | → |
| Saluda River Near Williamston | 358 cfs | → |
| Twelvemile Creek Near Liberty | 51 cfs | → |
| Reedy River Near Greenville | 21 cfs | → |
| Reedy River Above Fork Shoals | 93 cfs | → |
| Brushy Creek Near Greenville | 4 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Gro-Mor Pond Dam.
Boat launches
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Campgrounds
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Fishing spots
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River runs
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More reservoirs
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About Gro-Mor Pond Dam
Where does the data for Gro-Mor 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 below 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.
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.