Irrigation Lake Dam Reservoir Report

Last Updated: December 5, 2025

Irrigation Lake Dam, located in Guilford County, North Carolina, serves primarily for irrigation purposes but also offers recreational opportunities.


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Summary

The dam, categorized as an Earth type structure, stands at 25 feet tall with a hydraulic height of 19 feet. It has a storage capacity of 30 acre-feet, with a normal storage level of 23 acre-feet. The dam overlooks Brush Creek-Tr and spans a length of 325 feet, providing a surface area of 3 acres for water activities.

Despite being privately owned, Irrigation Lake Dam is subject to state inspections to ensure its safety and compliance with regulations. The hazard potential of this dam is rated as low, and its condition is currently not rated. The last inspection was conducted in November 2020, with no significant issues reported. While the dam does not fall under federal jurisdiction, it is monitored by state agencies to guarantee its functionality and integrity.

Enthusiasts of water resources and climate in the Ossippee area will find Irrigation Lake Dam to be a valuable asset for irrigation purposes and recreational enjoyment. With its modest size and low hazard potential, the dam provides a sustainable water source for agricultural activities while offering a serene backdrop for leisure activities by the lake. Regular inspections and state oversight ensure the safety and reliability of this essential water management structure in Guilford County, North Carolina.

Dam Length

325

River Or Stream

Brush Creek-Tr

Primary Dam Type

Earth

Surface Area

3

Hydraulic Height

19

Nid Storage

30

Structural Height

25

Hazard Potential

Low

Nid Height

25
       
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.