William Jeffords Dam dam
William Jeffords Dam
William Jeffords Dam, located in Spartanburg, South Carolina, serves as a crucial water resource for fire protection and maintaining a small fish pond, with a storage capacity of 90 acre-feet. Completed in 1998, this earth dam stands at 22 feet high and spans a length of 460 feet along the TR-South Tyger River. Despite its low hazard potential, the dam's condition assessment in 2017 reported poor structural integrity, prompting concern for its long-term safety and maintenance.
Managed by a private owner and regulated by the South Carolina Department of Health and Environmental Control, William Jeffords Dam has been inspected every five years to ensure compliance with state jurisdiction and permitting requirements. The dam's spillway type is categorized as uncontrolled, emphasizing the need for ongoing monitoring and risk assessment to mitigate potential hazards. The dam's risk level is rated as moderate, highlighting the importance of implementing robust risk management measures to address its structural deficiencies and safeguard the surrounding community from any potential emergencies.
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 William Jeffords Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Enoree River Near Woodruff | 115 cfs | → |
| Durbin Creek Above Fountain Inn | 6 cfs | → |
| South Tyger River Below Duncan | 21 cfs | → |
| Middle Tyger River Near Lyman | 8 cfs | → |
| Lawsons Fork Creek At Spartanburg Sc | 29 cfs | → |
| Enoree River At Pelham | 45 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near William Jeffords Dam.
Boat launches
- Berry Shoals Road 370, Spartanburg County
- Sandy Ford Road 1925, Chesnee
- J. Verne Smith Park (Lake Robinson)
- Anchor Park
- Garlington Drive Laurens County
- Arden Road Greenville County
Campgrounds
- Croft State Natural Area
- Sedalia Campground
- Sedalia
- Paris Mountain State Park
- Brick House
- Brick House Campground
Fishing spots
Paddle runs
- South Fork From Confluence With Pigeon Br To Nf Boundary
- Mills River From Confluence Of North/South Forks To Confluence With Foster Creek
- North Fork From Bottom Of Spillway Of Hendersonville Reservoir To Confluence With South Fork
- Nf Boundary To Confluence With North Fork
Track William Jeffords 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 William Jeffords Dam
Where does the data for William Jeffords 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 William Jeffords Dam.