Upper Stetson Stream Reservoir Report

Last Updated: December 19, 2025

Upper Stetson Stream is a dam located in Penobscot, Maine, with a primary purpose of recreation.


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Summary

Completed in 1853, this earth dam stands at a height of 10 feet and spans 325 feet across, providing a storage capacity of 3450 acre-feet. With a surface area of 768 acres and a drainage area of 10 square miles, this dam plays a crucial role in controlling debris and enhancing recreational activities in the area.

Managed by the local government and regulated by the Maine Emergency Management Agency (MEMA), Upper Stetson Stream has a low hazard potential and has not been rated for its condition assessment. While the dam has not undergone recent inspections, it is equipped with a spillway width of 15 feet to manage excess water flow. Despite its age, the dam continues to serve its purpose effectively, offering a serene environment for water resource and climate enthusiasts to explore and appreciate the beauty of Stetson Stream.

Year Completed

1853

Dam Length

325

Dam Height

10

River Or Stream

Stetson Stream

Primary Dam Type

Earth

Surface Area

768

Hydraulic Height

10

Drainage Area

10

Nid Storage

3450

Structural Height

10

Hazard Potential

Low

Nid Height

10
       
Seasonal Comparison

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Dam Data Reference

Condition Assessment

Satisfactory
No 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

High
Dams 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.