Hewlett Lake Dam Reservoir Report
Nearby: Chamberlain Dam Kelley Lake Dam
Last Updated: December 5, 2025
Hewlett Lake Dam, located in Poplar Bluff, Missouri, is a privately owned structure primarily used for recreation.
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Summary
Built in 1967, this earth dam stands at a height of 25 feet and has a storage capacity of 40 acre-feet. Set on TR-PIKE CREEK, the dam covers a surface area of 3 acres and drains an area of 35 square miles. Despite being categorized as high hazard potential, the dam's condition remains unrated with no recent inspections reported.
The dam, designed as an earth buttress structure, serves as a popular spot for outdoor enthusiasts and nature lovers in the Butler County area. With a maximum storage capacity of 40 acre-feet, Hewlett Lake Dam provides a tranquil setting for recreational activities and wildlife habitat. While the dam has not been regulated or inspected by state agencies, its location in a picturesque setting on TR-PIKE CREEK makes it an appealing destination for visitors seeking relaxation and enjoyment of the natural surroundings.
Although lacking recent assessments and emergency preparedness plans, Hewlett Lake Dam remains a significant feature in the landscape of Poplar Bluff, offering opportunities for outdoor recreation and water-based activities. As water resource and climate enthusiasts, the unique design and purpose of this privately owned dam on TR-PIKE CREEK in Missouri provide an intriguing case study of how man-made structures can harmoniously blend with nature to create a sustainable environment for both humans and wildlife.
Year Completed |
1967 |
Dam Height |
25 |
River Or Stream |
TR-PIKE CREEK |
Primary Dam Type |
Earth |
Surface Area |
3 |
Drainage Area |
35 |
Nid Storage |
40 |
Structural Height |
25 |
Hazard Potential |
High |
Foundations |
Unlisted/Unknown |
Nid Height |
25 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Black River At Poplar Bluff
|
858cfs |
Little Black River Below Fairdealing
|
113cfs |
St. Francis River At Wappapello
|
695cfs |
Black River At Leeper
|
508cfs |
Current River At Doniphan
|
1900cfs |
Black River Near Corning
|
789cfs |
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.
Hewlett Lake Dam