Von Derosa Number 3 Lake Dam Reservoir Report
Last Updated: December 21, 2025
Von Derosa Number 3 Lake Dam is a privately owned structure located in Pacific, Missouri, within Franklin County.
°F
°F
mph
Wind
%
Humidity
Summary
Built in 1970, this earth-type dam stands at a height of 25 feet and serves primarily for recreational purposes, offering a storage capacity of 80 acre-feet. With a high hazard potential, this dam has not been rated for its current condition, highlighting the need for further assessment and potential risk management measures.
Situated on TR to Brady Creek, this dam plays a crucial role in managing water resources and supporting recreational activities in the area. Despite being privately owned, the dam is not regulated by the state and does not fall under the jurisdiction of any state agency for permitting, inspection, or enforcement. While the dam has not been assessed for its condition recently, its high hazard potential underscores the importance of maintaining and monitoring its structural integrity to ensure the safety of surrounding communities and the sustainability of water resources in the region.
Water resource and climate enthusiasts will find Von Derosa Number 3 Lake Dam to be a fascinating case study in the intersection of infrastructure development, recreational use, and potential environmental risks. As a privately owned dam with limited state oversight, there is a need for increased awareness and proactive measures to assess, manage, and mitigate potential hazards associated with this critical water resource structure. The data provided offers a glimpse into the complexities of managing dams in diverse landscapes and underscores the importance of collaboration between private owners, government agencies, and local communities to ensure the safety and resilience of water infrastructure in the face of changing climate conditions.
Year Completed |
1970 |
Dam Height |
25 |
River Or Stream |
TR TO BRADY CREEK |
Primary Dam Type |
Earth |
Surface Area |
6 |
Drainage Area |
70 |
Nid Storage |
80 |
Structural Height |
25 |
Hazard Potential |
High |
Foundations |
Unlisted/Unknown |
Nid Height |
25 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Big River At Byrnesville
|
176cfs |
Meramec River At Pacific
|
557cfs |
Bourbeuse River At Union
|
73cfs |
Big River Near Richwoods
|
174cfs |
Meramec River Near Eureka
|
858cfs |
Kiefer Creek Near Ballwin
|
1cfs |
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.
Von Derosa Number 3 Lake Dam