Lake Myra Dam Reservoir Report
Last Updated: December 13, 2025
Lake Myra Dam, located in Wake County, North Carolina, was completed in 1919 for the primary purpose of recreation.
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Summary
This masonry dam stands at a structural height of 12 feet and has a length of 310 feet, creating a reservoir with a normal storage capacity of 260 acre-feet. The dam is situated on Marks Creek and has a significant hazard potential, although its condition assessment is currently not rated.
The dam, owned privately, is not regulated by the state and has not been modified in recent years. Despite being inspected in 1993, the dam does not have an established inspection frequency. In the event of an emergency, contact information and preparedness protocols, such as an Emergency Action Plan (EAP), are not readily available. With a maximum discharge capacity of 1530 cubic feet per second, Lake Myra Dam serves as a crucial water resource for the surrounding community, offering both recreational opportunities and potential risks that should be monitored and managed effectively.
Year Completed |
1919 |
Dam Length |
310 |
River Or Stream |
Marks Creek |
Primary Dam Type |
Masonry |
Surface Area |
86 |
Nid Storage |
402 |
Structural Height |
12 |
Hazard Potential |
Significant |
Nid Height |
12 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
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.
Lake Myra Dam