Harrison Lake Dam Reservoir Report
Last Updated: December 19, 2025
Harrison Lake Dam, located in Mcbaine, Missouri, is a private structure primarily serving as a Fish and Wildlife Pond.
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Summary
Completed in 1985, this Earth dam stands at a height of 24 feet and has a length of 743 feet, with a storage capacity of 85 acre-feet. The dam's purpose also includes irrigation and recreation, making it a valuable resource for the surrounding area.
With a drainage area of 265 square miles, Harrison Lake Dam plays a vital role in managing water resources in the region. The dam's spillway, with a width of 38 feet, helps regulate water flow and manage potential flooding events. Despite being categorized as having a low hazard potential, the dam is subject to moderate risk, emphasizing the importance of ongoing monitoring and maintenance to ensure its continued safety and effectiveness for the community.
Overall, Harrison Lake Dam serves as a key component in the local ecosystem, providing essential habitat for fish and wildlife while offering recreational opportunities for residents. Its modest size and low hazard potential make it an important but manageable structure in the St. Louis District, highlighting the intersection of water resource management, climate considerations, and community needs in the area.
Year Completed |
1985 |
Dam Length |
743 |
Dam Height |
24 |
River Or Stream |
TR-SILVER FORK |
Primary Dam Type |
Earth |
Surface Area |
12 |
Hydraulic Height |
24 |
Drainage Area |
265 |
Nid Storage |
85 |
Structural Height |
24 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
24 |
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.
Harrison Lake Dam