Doubletree Subdivision Dam Reservoir Report

Last Updated: December 6, 2025

Doubletree Subdivision Dam, located in Jamesville, New York, was completed in 1991 with the primary purpose of flood risk reduction.


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Summary

This earthen dam stands at 28 feet in height and spans 450 feet in length, with a storage capacity of 4 acre-feet. Despite its significant hazard potential, the dam's condition assessment is rated as poor, highlighting the need for ongoing maintenance and monitoring.

Managed by the local government and regulated by the New York State Department of Environmental Conservation, Doubletree Subdivision Dam is subject to regular inspections to ensure its structural integrity and compliance with safety standards. The dam features an uncontrolled spillway type with a width of 4 feet, capable of discharging a maximum of 215 cubic feet per second. While the risk assessment for the dam is moderate, with a rating of 3 out of 5, there is a need for improved risk management measures and maintenance to mitigate potential hazards.

Water resource and climate enthusiasts interested in the management and maintenance of dams will find Doubletree Subdivision Dam a compelling case study. With its location in Onondaga County and its critical role in flood risk reduction, this dam serves as a focal point for understanding the complexities of dam infrastructure, regulatory oversight, and risk management in the face of changing environmental conditions.

Year Completed

1991

Dam Length

450

Dam Height

28

River Or Stream

NONE

Primary Dam Type

Earth

Drainage Area

0.09

Nid Storage

4

Hazard Potential

Significant

Nid Height

28
       
Seasonal Comparison

Weather Forecast

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.