Rainbow Pond Dam Reservoir Report
Nearby: Old Peel Farm Dam Leggett Pond Dam
Last Updated: December 6, 2025
Rainbow Pond Dam, located in Williamston, North Carolina, is a privately owned structure managed by the Natural Resources Conservation Service.
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Summary
Built in 1967, this earth dam stands at a structural height of 20 feet and has a hydraulic height of 17 feet. With a primary purpose of irrigation, the dam also serves recreational activities, offering a surface area of 15 acres for visitors to enjoy.
Situated on the Roanoke River-Tr, Rainbow Pond Dam has a storage capacity of 120 acre-feet, making it a crucial resource for water management in the region. Despite being unregulated by the state, the dam undergoes regular inspections to ensure its structural integrity and safety. Classified as having a low hazard potential, the dam has a moderate risk assessment rating, indicating the need for continued monitoring and risk management measures.
With its picturesque location and dual purpose of irrigation and recreation, Rainbow Pond Dam is a valuable asset for the local community. As climate change impacts water resources, the importance of structures like this becomes increasingly evident, highlighting the need for sustainable management practices to ensure the long-term viability of water sources in the area.
Year Completed |
1967 |
Dam Length |
390 |
River Or Stream |
Roanoke River-Tr |
Primary Dam Type |
Earth |
Surface Area |
15 |
Hydraulic Height |
17 |
Nid Storage |
120 |
Structural Height |
20 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
20 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Cashie River At Sr1257 Near Windsor
|
0cfs |
Tar River At Tarboro
|
464cfs |
Tar River At Greenville
|
260cfs |
Chicod Cr At Sr1760 Near Simpson
|
2cfs |
Ahoskie Creek At Ahoskie
|
8cfs |
Van Swamp Near Hoke
|
0cfs |
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.
Rainbow Pond Dam