White Cypress Lake Dam Reservoir Report
Last Updated: December 6, 2025
White Cypress Lake Dam, also known as Lake Cypress Dam, is a private dam located in Necaise, Hancock County, Mississippi.
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Summary
Completed in 1972, this Earth dam stands at a height of 26.59 feet and serves the primary purpose of recreation. With a normal storage capacity of 1174.42 acre-feet and a maximum storage of 2238.5 acre-feet, the dam plays a crucial role in providing water resources for recreational activities in the area.
Managed by the Mississippi Department of Environmental Quality, the White Cypress Lake Dam is regulated, inspected, and permitted by state authorities to ensure its safety and compliance with environmental standards. The dam's spillway, with a width of 4 feet, is uncontrolled, and it has a high hazard potential rating. Despite being assessed as in fair condition during the last inspection in January 2021, the dam is subject to moderate risk, highlighting the importance of ongoing risk management measures to safeguard the surrounding community and environment.
For water resource and climate enthusiasts, White Cypress Lake Dam offers a fascinating case study in dam infrastructure management and recreational water use. Its location on the UNT of White Cypress Creek, under the jurisdiction of the Mobile District of the US Army Corps of Engineers, presents opportunities for exploring the intersection of water conservation, recreation, and regulatory oversight. As efforts continue to monitor and improve the dam's safety and resilience, it exemplifies the crucial role that dams play in balancing water resource management with environmental protection and public recreation.
Year Completed |
1972 |
Dam Length |
1383 |
Dam Height |
26.59 |
River Or Stream |
UNT OF WHITE CYPRESS CREEK |
Primary Dam Type |
Earth |
Surface Area |
119.96 |
Hydraulic Height |
20 |
Drainage Area |
1 |
Nid Storage |
2238.5 |
Structural Height |
26.59 |
Hazard Potential |
High |
Nid Height |
27 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
East Hobolochitto Creek Nr Caesar
|
380cfs |
Wolf River Nr Landon
|
1010cfs |
West Hobolochitto Creek Nr Mcneill
|
456cfs |
Biloxi River At Wortham
|
467cfs |
Bogue Chitto River Near Bush
|
2090cfs |
Pearl River Near Bogalusa
|
4900cfs |
Dam Data Reference
Condition Assessment
SatisfactoryNo 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
HighDams 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.
White Cypress Lake Dam