Vanderback Sect-21 Lake Dam Reservoir Report
Last Updated: December 19, 2025
Vanderback Sect-21 Lake Dam, located in Randolph, Missouri, was completed in 1967 and stands at a height of 30 feet.
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Summary
This private earth dam, with a core type of buttress, serves as a crucial structure on TR-Sweet Spring Creek, providing a storage capacity of 128 acre-feet. The dam's primary purpose is listed as 'Other', and it has a normal storage capacity of 80 acre-feet, covering a surface area of 8 acres and draining a watershed area of 76 square miles.
Despite its low hazard potential and 'Not Rated' condition assessment, Vanderback Sect-21 Lake Dam plays a significant role in regulating water flow and storage in the region. While it is not under state regulation or inspection, the dam's presence ensures water availability for agricultural and recreational purposes in the surrounding area. As climate change continues to impact water resources, understanding and monitoring structures like Vanderback Sect-21 Lake Dam become increasingly important for water resource and climate enthusiasts seeking to safeguard and sustainably manage these vital assets.
Year Completed |
1967 |
Dam Height |
30 |
River Or Stream |
TR-SWEET SPRING CREEK |
Primary Dam Type |
Earth |
Surface Area |
8 |
Drainage Area |
76 |
Nid Storage |
128 |
Structural Height |
30 |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
30 |
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.
Vanderback Sect-21 Lake Dam