Dam Report

Holmes Mitchell Pond Dam dam

South Carolina, USA Tr-South Fork Edisto River Hazard Low
Today high
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Tonight low
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Dam height
26ft
Hazard rating
Low
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Holmes Mitchell Pond Dam -- None dam
Holmes Mitchell Pond Dam None · Tr-South Fork Edisto River
About this dam

Holmes Mitchell Pond Dam

Holmes Mitchell Pond Dam, located in Edgefield, South Carolina, is a privately owned structure built in 1940 primarily for recreational purposes. The dam stands at a height of 26 feet and stretches 555 feet in length, creating a reservoir with a storage capacity of 136 acre-feet. Despite its low hazard potential, the dam is currently in poor condition according to a 2017 assessment, highlighting the need for maintenance and potential repairs to ensure its long-term stability.

Situated on the TR-South Fork Edisto River, Holmes Mitchell Pond Dam is under the regulatory oversight of the South Carolina Department of Health and Environmental Control (SC DHEC). Despite being state-regulated, the dam lacks certain important features such as spillways and outlet gates. The last inspection was conducted in August 2017 with an inspection frequency of five years, indicating a need for more frequent monitoring and assessment to address the poor condition and mitigate any potential risks associated with the dam.

Given its location and purpose, Holmes Mitchell Pond Dam serves as a recreational attraction in the area, offering opportunities for activities such as fishing and boating. However, with its current condition assessment as poor, it is crucial for the private owners and regulatory agencies to collaborate on a plan for necessary maintenance and improvements to ensure the safety and longevity of this important water resource in the region.

StateNone
River / streamTr-South Fork Edisto River
NID IDSC01136
Owner typePrivate
Primary purposeRecreation
Dam typeEarth
Year built1940
Dam height26 ft
Dam length555 ft
Max storage136 AF
Normal storage85 AF
Surface area13.0 ac
Hazard potentialLow
ConditionPoor
Last inspectionMon, 07 Aug 2017 00:00:00 GMT

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.
Detailed forecast

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.

Hourly detail

Next 5 days, hour by hour

Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.

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Deep dive

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.

TimeConditionTemp (°F)Snow (in)Rain (in)Humidity (%)Wind (mps)Wind dir
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Long-term outlook

15-day temperature & precipitation

Daily temperatures, snow, and rain projected over the next two weeks.

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Regional inflow

Nearby streamflow gauges

USGS streamgauges around Holmes Mitchell Pond Dam -- inflows here typically show up in storage 24-72 hours later.

Track Holmes Mitchell 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.

FAQ

About Holmes Mitchell Pond Dam

Where does the data for Holmes Mitchell 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 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.