Yours Reservoir Report
Last Updated: December 20, 2025
Yours, Mine & Ours Lake Dam, also known as Mcallister Lake Dam, is a privately owned structure located in Morgan, Indiana.
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Summary
Built in 1953, this earth dam stands at a height of 43 feet and spans 380 feet in length, creating a reservoir with a storage capacity of 165 acre-feet. The primary purpose of this dam is for recreation, providing a surface area of 7.5 acres for water enthusiasts to enjoy.
Despite its low hazard potential, the dam is currently in poor condition as of the last assessment in 2011. With a high risk assessment rating of 2, there is a need for improved risk management measures to ensure the safety and stability of the structure. The dam is state regulated by the Indiana Department of Natural Resources, with inspections and enforcement in place to monitor its condition. While there is no spillway present, the dam is situated on Sycamore Creek and has a drainage area of 0.28 square miles.
For water resource and climate enthusiasts, the Yours, Mine & Ours Lake Dam serves as a vital recreational resource in Indiana. As efforts continue to maintain and improve the dam's condition, it is crucial to address the identified risks and implement necessary measures to mitigate potential hazards. With its historical significance and scenic surroundings, this dam remains an important feature in the local landscape, attracting visitors and residents alike to enjoy the beauty and benefits of its reservoir.
Year Completed |
1953 |
Dam Length |
380 |
Dam Height |
43 |
River Or Stream |
SYCAMORE CREEK |
Primary Dam Type |
Earth |
Surface Area |
7.5 |
Hydraulic Height |
43 |
Drainage Area |
0.28 |
Nid Storage |
165 |
Structural Height |
43 |
Outlet Gates |
None |
Hazard Potential |
Low |
Nid Height |
43 |
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.
Yours, Mine & Ours Lake Dam