Hallock Lake Dam Reservoir Report
Last Updated: December 17, 2025
Hallock Lake Dam, located in Pattonburg, Missouri, was completed in 1957 and serves primarily for fire protection, stock, and as a small fish pond.
°F
°F
mph
Wind
%
Humidity
Summary
The dam, standing at a height of 15 feet, has a storage capacity of 96 acre-feet and covers a surface area of 12 acres. It is an earth dam with a buttress core type and is situated on TR-Polecat Creek in Harrison County, Missouri.
Owned privately, Hallock Lake Dam is not regulated by the state and has a low hazard potential. Despite not having a condition assessment rating, the dam is considered to be in good condition. With its low hazard potential and lack of state regulation, the dam provides a valuable resource for the surrounding area for both recreational purposes and for maintaining the ecosystem of the creek. Additionally, the dam plays a crucial role in providing fire protection and sustaining wildlife in the region.
Overall, Hallock Lake Dam stands as a testament to responsible water resource management and serves as a vital asset for the community. Its construction in the mid-20th century continues to provide essential services while promoting conservation and sustainability in the region. As climate change impacts water resources, the importance of dams like Hallock Lake Dam in ensuring water security and ecosystem preservation becomes increasingly significant for the future.
Year Completed |
1957 |
Dam Height |
15 |
River Or Stream |
TR-POLECAT CREEK |
Primary Dam Type |
Earth |
Surface Area |
12 |
Drainage Area |
105 |
Nid Storage |
96 |
Structural Height |
15 |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
15 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
East Fork Big Creek Near Bethany
|
3cfs |
Thompson River At Davis City
|
22cfs |
Thompson River At Trenton
|
153cfs |
Grand River Near Gallatin
|
67cfs |
Medicine Creek Near Laredo
|
16cfs |
Grand River At Chillicothe
|
361cfs |
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.
Hallock Lake Dam