Mcadams Lake Dam Reservoir Report
Last Updated: December 21, 2025
Mcadams Lake Dam in Pacific, Missouri, is a private recreational dam located on Little Calvey Creek.
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Summary
With a height of 25 feet and a storage capacity of 40 acre-feet, this earth dam serves primarily for recreational purposes. The dam has a low hazard potential and is currently rated as "Not Rated" in terms of its condition assessment.
Owned privately, the Mcadams Lake Dam is not regulated or inspected by the state, with no state permitting, inspection, or enforcement in place. The dam is situated within Franklin County, Missouri, and is managed by the Kansas City District of the US Army Corps of Engineers. Despite its private ownership and lack of state regulation, the dam poses minimal risk due to its low hazard potential.
Water resource and climate enthusiasts may find Mcadams Lake Dam as an interesting case study of a privately-owned recreational dam in Missouri. With its relatively small storage capacity and low hazard potential, this earth dam provides a glimpse into the diverse landscape of dams in the region. Its location on Little Calvey Creek adds to the unique ecological and recreational opportunities in the area, making it a noteworthy site for those interested in water resource management and climate-related impacts on dams.
Dam Height |
25 |
River Or Stream |
LITTLE CALVEY CREEK |
Primary Dam Type |
Earth |
Surface Area |
3 |
Drainage Area |
70 |
Nid Storage |
40 |
Structural Height |
25 |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
25 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Meramec River At Pacific
|
557cfs |
Big River At Byrnesville
|
176cfs |
Bourbeuse River At Union
|
73cfs |
Meramec River Near Eureka
|
858cfs |
Big River Near Richwoods
|
174cfs |
Bonhomme Creek Near Ellisville
|
0cfs |
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.
Mcadams Lake Dam