Hobby Dam Reservoir Report

Last Updated: December 5, 2025

Hobby Dam, also known as Bespak Dam, is a private recreational dam located in Wake County, North Carolina.


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Summary

Situated along the Williams Creek-Tr river, this earth dam stands at a structural height of 14.5 feet with a hydraulic height of 11.5 feet. With a NID storage capacity of 16 acre-feet, it serves as a popular spot for recreational activities, offering a surface area of 2 acres for visitors to enjoy.

Although not state-regulated or permitted, Hobby Dam is regularly inspected to ensure its safety and structural integrity. Classified with a high hazard potential, the dam has not been officially rated for its condition assessment as of the last inspection in March 2020. While the dam has not undergone modifications or enhancements in recent years, its emergency action plan status and risk management measures remain unspecified.

Water resource and climate enthusiasts visiting Hobby Dam can appreciate its importance in providing recreational opportunities within the region, as well as its role in contributing to the local ecosystem. As an unregulated private structure, the dam's condition and safety continue to be monitored to prevent potential hazards and ensure the well-being of both visitors and the surrounding environment.

Dam Length

320

River Or Stream

Williams Creek-Tr

Primary Dam Type

Earth

Surface Area

2

Hydraulic Height

11.5

Nid Storage

16

Structural Height

14.5

Hazard Potential

High

Nid Height

15
       
Seasonal Comparison

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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.