Brookhaven Addition Lake Dam Reservoir Report
Last Updated: December 27, 2025
Brookhaven Addition Lake Dam in Grant, Indiana, is a privately owned earth dam with a primary purpose of recreation.
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Summary
Completed in 1962, the dam stands at 18 feet in height and spans a length of 280 feet, creating a surface area of 6.19 acres and a maximum storage capacity of 74 acre-feet. Situated on the MISSISSINEWA river, the dam is regulated by the Indiana Department of Natural Resources and undergoes regular inspections.
Despite its significant hazard potential and poor condition assessment, the dam continues to provide recreational opportunities for the local community. With a spillway width of 18 feet and a maximum discharge of 1038 cubic feet per second, the dam poses potential risks that are classified as moderate. It is important for water resource and climate enthusiasts to monitor the condition of Brookhaven Addition Lake Dam to ensure the safety and sustainability of this vital water infrastructure in Indiana.
Year Completed |
1962 |
Dam Length |
280 |
Dam Height |
18 |
River Or Stream |
MISSISSINEWA |
Primary Dam Type |
Earth |
Surface Area |
6.19 |
Hydraulic Height |
18 |
Drainage Area |
1.39 |
Nid Storage |
74 |
Structural Height |
18 |
Outlet Gates |
None |
Hazard Potential |
Significant |
Foundations |
Rock, Soil |
Nid Height |
18 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Mississinewa River At Marion
|
83cfs |
Salamonie River Near Warren
|
35cfs |
Wildcat Creek Near Jerome
|
1cfs |
Wabash River At Wabash
|
139cfs |
Pipe Creek At Frankton
|
9cfs |
White River At Muncie
|
9cfs |
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.
Brookhaven Addition Lake Dam