Patterson Farms Lake Dam Reservoir Report
Last Updated: December 14, 2025
Patterson Farms Lake Dam, located in Maitland, Missouri, was completed in 1960 and serves as a crucial infrastructure for flood risk reduction in the area.
°F
°F
mph
Wind
%
Humidity
Summary
Owned privately, this earth dam stands at a height of 30 feet and a length of 200 feet, with a storage capacity of 321 acre-feet and a drainage area of 1019 acres. Despite its low hazard potential, the dam has not been rated for its condition assessment, indicating a need for further evaluation and maintenance.
Surrounded by the scenic TR-Nodaway River, Patterson Farms Lake Dam also serves purposes beyond flood risk reduction, including fire protection, recreational activities, and animal husbandry. With a surface area of 20 acres and a normal storage capacity of 167 acre-feet, the dam provides a valuable resource for the local community. However, the lack of state regulation, permitting, inspection, and enforcement raises concerns about the dam's long-term safety and sustainability.
In the absence of a comprehensive emergency action plan and updated risk assessments, Patterson Farms Lake Dam presents a potential risk to downstream communities in the event of a failure. With no designated inspection frequency or condition assessment date, it is essential for relevant authorities to prioritize the evaluation and maintenance of this crucial infrastructure to ensure the safety and well-being of all those who rely on its services.
Year Completed |
1960 |
Dam Length |
200 |
Dam Height |
30 |
River Or Stream |
TR-NODAWAY RIVER |
Primary Dam Type |
Earth |
Surface Area |
20 |
Drainage Area |
1019 |
Nid Storage |
321 |
Structural Height |
30 |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
30 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Nodaway River Near Burlington Jct
|
127cfs |
Nodaway River Near Graham
|
101cfs |
Tarkio River At Fairfax Mo
|
63cfs |
One Hundred And Two River At Maryville
|
16cfs |
Missouri River At Rulo
|
26000cfs |
Nodaway River At Clarinda
|
20cfs |
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.
Patterson Farms Lake Dam