David Gray Dam dam
David Gray Dam
David Gray Dam, located in Greenville, South Carolina, is a private Earth dam completed in 1999 with a primary purpose of serving as a Fish and Wildlife Pond. With a height of 23 feet and a length of 95 feet, the dam has a storage capacity of 60 acre-feet, with a normal storage level of 38.8 acre-feet. Despite its low hazard potential, the dam's condition assessment is rated as poor, indicating a need for maintenance and improvements to ensure its continued safety and functionality.
Managed by the South Carolina Department of Health and Environmental Control (DHEC), David Gray Dam is regularly inspected and regulated to meet state permitting and enforcement guidelines. The dam's spillway, classified as uncontrolled, indicates a potential risk factor in the event of excess water flow. The dam's risk assessment is moderate, highlighting the importance of implementing effective risk management measures to protect the surrounding area and downstream communities from potential hazards.
For water resource and climate enthusiasts, David Gray Dam presents an opportunity to explore the intersection of infrastructure management and environmental conservation. By addressing the dam's poor condition assessment and implementing necessary risk management measures, stakeholders can ensure the long-term sustainability of this vital Fish and Wildlife Pond while safeguarding the surrounding ecosystem and water resources for future generations.
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 David Gray Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Saluda River Near Williamston | 453 cfs | → |
| Reedy River Above Fork Shoals | 148 cfs | → |
| South Rabon Creek Near Gray Court | 12 cfs | → |
| Saluda River Near Ware Shoals | 839 cfs | → |
| Durbin Creek Above Fountain Inn | 5 cfs | → |
| Rocky River Nr Starr | 32 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near David Gray 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 David Gray Dam
Where does the data for David Gray 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.