Harry Mullock Dam Reservoir Report
Last Updated: December 16, 2025
Harry Mullock Dam, located in Worth, Missouri, is a privately owned structure built in 1991 for the primary purpose of grade stabilization along the TR-"X" Branch river or stream.
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Summary
This earth dam stands at a height of 30 feet with a length of 200 feet, providing a storage capacity of 39 acre-feet and serving a drainage area of 174 square miles. Despite being uncontrolled, the dam has a low hazard potential and is currently not rated for condition assessment.
With a moderate risk assessment score of 3, Harry Mullock Dam is a key feature in the local landscape, ensuring water resource management and flood control in the area. While it does not fall under state jurisdiction or regulation, the dam plays a crucial role in maintaining the stability of the surrounding environment. The dam's design, primarily consisting of earth and stone core materials, reflects its functionality in managing water flow and preventing erosion along the riverbank.
Water resource and climate enthusiasts can appreciate the engineering and environmental significance of Harry Mullock Dam, as it represents a vital infrastructure for water management in the region. The dam's construction and purpose highlight the importance of sustainable development and stewardship of natural resources, ensuring the safety and well-being of the local community. As a low-risk structure with a moderate risk assessment, Harry Mullock Dam stands as a testament to effective dam management practices and serves as a valuable asset for water resource enthusiasts and environmental advocates alike.
Year Completed |
1991 |
Dam Length |
200 |
Dam Height |
30 |
River Or Stream |
TR-"X" BRANCH |
Primary Dam Type |
Earth |
Surface Area |
13 |
Hydraulic Height |
30 |
Drainage Area |
174 |
Nid Storage |
39 |
Structural Height |
30 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
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.
Harry Mullock Dam