Mill Pond Lpp Reservoir Report
Nearby: Mattanawcook Pond Stump Pond
Last Updated: December 21, 2025
Mill Pond Lpp in Maine is a privately owned concrete dam constructed in 1917 for flood risk reduction along the Mattanawcook Stream.
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Summary
With a dam height of 18 feet and a storage capacity of 132 acre-feet, this structure serves multiple purposes including fire protection, stock, and small fish pond management. The dam's low hazard potential and not rated condition assessment suggest a stable and well-maintained infrastructure.
Located in Penobscot County, this dam has a hydraulic height of 16 feet and a spillway width of 112 feet, ensuring efficient water management during peak discharge events. Although last inspected in 2007, with inspection frequency of 12 years, Mill Pond Lpp remains a crucial asset for water resource management in the region. With state regulation and enforcement in place, the dam continues to play a vital role in protecting the local community from flooding and ensuring water availability for various needs.
As climate change impacts intensify, structures like Mill Pond Lpp highlight the importance of resilient infrastructure for adapting to changing hydrological patterns. With its historical significance and multifaceted purposes, this dam symbolizes the intersection of water resource management, climate resilience, and community safety. As water resource and climate enthusiasts, understanding and advocating for the upkeep and modernization of such critical infrastructure is essential for ensuring sustainable water management in the face of a changing climate.
Year Completed |
1917 |
Dam Length |
200 |
Dam Height |
18 |
River Or Stream |
Mattanawcook Stream |
Primary Dam Type |
Concrete |
Surface Area |
12 |
Hydraulic Height |
16 |
Drainage Area |
30 |
Nid Storage |
132 |
Structural Height |
18 |
Hazard Potential |
Low |
Nid Height |
18 |
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.
Mill Pond Lpp
Lake Street Lincoln