Dam Report

Sesqui Dam dam

South Carolina, USA Jackson Creek Hazard High
Today high
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Tonight low
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Dam height
14ft
Hazard rating
High
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Sesqui Dam -- None dam
Sesqui Dam None · Jackson Creek
About this dam

Sesqui Dam

Sesqui Dam, located in Richland, South Carolina, stands as a vital recreational water resource within the region. Built in 1937, this earth dam spans 984 feet in length and reaches a height of 14 feet, with a storage capacity of 322 acre-feet. Managed by the state regulatory agency, SC DHEC, the dam is inspected regularly to ensure its fair condition and high hazard potential are properly monitored.

The primary purpose of Sesqui Dam is recreation, offering a serene environment for visitors to enjoy activities such as fishing, boating, and picnicking. Situated on Jackson Creek, the dam's reservoir covers 27 acres and provides a maximum storage capacity of 322 acre-feet. Despite its age, Sesqui Dam continues to be a popular destination for water and climate enthusiasts seeking outdoor adventures in the heart of South Carolina.

As a key feature within the Savannah District, Sesqui Dam plays a crucial role in providing water-based recreational opportunities for the local community. With its stone core and soil foundation, the dam exemplifies a resilient engineering design that has stood the test of time. And with a commitment to regular inspections and maintenance, Sesqui Dam remains a safe and enjoyable destination for all who appreciate the beauty and importance of water resources in the face of changing climate conditions.

StateNone
River / streamJackson Creek
NID IDSC00058
Owner typeState
Primary purposeRecreation
Dam typeEarth
Year built1937
Dam height14 ft
Dam length984 ft
Max storage322 AF
Normal storage150 AF
Surface area27.0 ac
Hazard potentialHigh
ConditionFair
Last inspectionWed, 19 Dec 2018 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 Sesqui Dam -- inflows here typically show up in storage 24-72 hours later.

Track Sesqui 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 Sesqui Dam

Where does the data for Sesqui 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 High 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.

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