J M Hemminger Dam dam
J M Hemminger Dam
J M Hemminger Dam, located in McCormick, South Carolina, was completed in 1910 and is owned by a private entity. Designed by the USDA NRCS, this earth dam stands at a height of 17 feet and spans 700 feet along the TR-MILL CREEK. With a primary purpose of recreation, the dam offers a storage capacity of 101 acre-feet and a surface area of 17 acres.
Despite its low hazard potential, J M Hemminger Dam has a poor condition assessment as of September 2017. The dam's inspection frequency is set at 5 years, with the last assessment date being in 2017. The risk assessment for this structure is rated as moderate (3), indicating a need for ongoing monitoring and potential management measures to ensure its safety and integrity for the surrounding community.
With its unique design and historical significance, J M Hemminger Dam serves as a vital recreational resource in the area. As water resource and climate enthusiasts, it's important to stay informed about the condition and risk assessment of such structures to advocate for their proper maintenance and preservation in the face of changing environmental conditions.
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 J M Hemminger Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Little River Near Mt. Carmel | 1,120 cfs | → |
| Broad River Near Bell | 1,550 cfs | → |
| Stevens Creek Near Modoc | 585 cfs | → |
| Beaverdam Creek Ab Elberton Ga | 121 cfs | → |
| Little River Near Washington | 65 cfs | → |
| Kettle Creek Near Washington | 133 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near J M Hemminger Dam.
Boat launches
- Little River Boat Ramp
- State Road S-33-366, Mccormick
- Highway 28, Mccormick
- Long Cane Creek Boat Ramps
- State Road S-33-277, Mccormick
- Savannah Scenic Way South Lincoln County
Campgrounds
- Leroys Ferry - Strom Thurmond Lake
- Mount Carmel - Strom Thurmond Lake
- Hesters Ferry - Strom Thurmond Lake
- Morrow Bridge And Midway Seasonal Camps
- Bobby Brown State Park
- Hickory Knob State Resort Park
Fishing spots
- Parsons Mountain Lake
- Richard B Russell Lake
- Cherokee Creek
- Cliatt Creek
- J. Strom Thurmond Reservoir
- Lick Fork Lake
Track J M Hemminger 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 J M Hemminger Dam
Where does the data for J M Hemminger 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 J M Hemminger Dam.