Dysart Lake Dam Reservoir Report
Last Updated: December 13, 2025
Dysart Lake Dam, located in St.
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Summary
Joseph, Missouri, serves as a vital structure for debris control along the TR-Arapahoe Creek. Built in 1960, this earth dam stands at a height of 25 feet and provides a storage capacity of 107 acre-feet, with a normal storage level of 66 acre-feet. The dam also has a surface area of 8 acres and drains a watershed of 170 square miles.
Although not state-regulated, Dysart Lake Dam is classified as having a high hazard potential due to its proximity to populated areas. Despite its condition being labeled as "Not Rated," the dam continues to play a crucial role in managing water resources and providing recreational opportunities in the region. With its primary purpose being debris control, the dam contributes to the overall environmental and societal well-being of the area.
As water resource and climate enthusiasts, the Dysart Lake Dam presents an intriguing case study for understanding the importance of effective dam management and the role it plays in mitigating potential hazards and ensuring the safety of surrounding communities. Its design and function showcase the delicate balance between nature and human intervention, making it a significant asset in the local watershed system.
Year Completed |
1960 |
Dam Height |
25 |
River Or Stream |
TR-ARAPAHOE CREEK |
Primary Dam Type |
Earth |
Surface Area |
8 |
Drainage Area |
170 |
Nid Storage |
107 |
Structural Height |
25 |
Hazard Potential |
High |
Foundations |
Unlisted/Unknown |
Nid Height |
25 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Nodaway River Near Graham
|
134cfs |
One Hundred And Two River At Maryville
|
21cfs |
Missouri River At Rulo
|
28600cfs |
Missouri River At St. Joseph
|
27300cfs |
Nodaway River Near Burlington Jct
|
127cfs |
Tarkio River At Fairfax Mo
|
52cfs |
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.
Dysart Lake Dam