Woodhaven Sub Dam 1 Reservoir Report

Last Updated: December 5, 2025

Woodhaven Sub Dam 1, located in McCormick, South Carolina, is a state-regulated dam with a height of 29 feet and a storage capacity of 35 acre-feet.


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Summary

The dam, which was last inspected in October 2017 and deemed to have a low hazard potential and fair condition, is owned by an entity not listed in the data. The dam is situated within the jurisdiction of the South Carolina Department of Health and Environmental Control (DHEC) and is subject to state permitting, inspection, and enforcement requirements.

Despite its relatively low hazard potential, Woodhaven Sub Dam 1 plays a crucial role in water resource management in the area, with a normal storage capacity of 18.4 acre-feet. While details about the dam's primary purpose, construction year, and associated structures are not provided in the data, its importance in maintaining water levels and mitigating flood risks in the region cannot be understated. With its location in Congressional District 03 of South Carolina and under the oversight of the Charleston District of the US Army Corps of Engineers, the dam serves as a vital infrastructure for ensuring water security and environmental resilience in the area.

Although specific information about the dam's design, construction, and modification history is not available, the data indicates that Woodhaven Sub Dam 1 has been well-maintained and meets state regulatory standards. With a regular inspection frequency of 5 years and a fair condition assessment as of October 2017, the dam continues to fulfill its role in water storage and management effectively. As a key component of the local water infrastructure, Woodhaven Sub Dam 1 underscores the importance of proactive monitoring and maintenance to ensure the safety and functionality of essential water resources in the region.

Dam Height

29

Nid Storage

35

Hazard Potential

Low

Nid Height

29
       
Seasonal Comparison

Weather Forecast

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. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
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. Investigations and studies are necessary.
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.
Not Available
Dams for which the condition assessment is restricted to approved government users.

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, environment 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.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.