Griggs Dam Reservoir Report
Last Updated: December 6, 2025
Griggs Dam, located in Henrico, Virginia, is a privately owned structure that serves the primary purpose of recreation.
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Summary
Standing at a height of 18 feet, this earth dam on Four Mile Creek has a storage capacity of 106 acre-feet, with a normal storage level of 36 acre-feet. While the dam's hazard potential is currently labeled as 'Undetermined' and its condition has not been rated, it is regulated by the Virginia Department of Conservation and Recreation, ensuring that state permitting, inspection, and enforcement measures are in place.
Despite lacking specific details on its completion year, dimensions, or maintenance history, Griggs Dam remains a focal point for water resource and climate enthusiasts due to its location and potential impact on the surrounding environment. The dam's presence on Four Mile Creek within the Norfolk District highlights the importance of monitoring its condition and management practices to prevent any potential risks or hazards. As a structure that caters to recreational activities, it is essential for stakeholders to prioritize safety measures and regulatory compliance to ensure the long-term sustainability of Griggs Dam and its associated water resources.
As enthusiasts continue to explore the intricacies of water management and climate resilience, Griggs Dam stands as a notable case study in private ownership and state regulation. With its unique setting in the natural landscape of Henrico, Virginia, and oversight from the Department of Conservation and Recreation, this dam serves as a reminder of the delicate balance between human intervention and environmental protection. By staying informed about its condition, hazard potential, and emergency preparedness, water resource enthusiasts can gain valuable insights into the intricate relationship between infrastructure development and the preservation of our natural ecosystems.
Dam Height |
18 |
River Or Stream |
FOUR MILE CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
18 |
Nid Storage |
106 |
Structural Height |
18 |
Hazard Potential |
Undetermined |
Nid Height |
18 |
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.
Griggs Dam
Deep Bottom Boat Ramp
Fourmile Creek Park
Deep Bottom Park
Dorey Park
Varina Recreation Area
Gill Dale Park