Seven Hills Camp Dam Reservoir Report

Last Updated: December 6, 2025

Seven Hills Camp Dam, located in Holland, New York, is a privately owned recreational dam completed in 1986.


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Summary

Standing at a height of 25 feet and a length of 450 feet, the dam serves the primary purpose of recreation, offering a storage capacity of 23 acre-feet and a surface area of 3 acres. The dam is situated on the TR-E BR CAZENOVIA CREEK and is regulated by the NYS DEC, with state permitting, inspection, and enforcement in place to ensure its safety and compliance.

With a low hazard potential and a moderate risk assessment rating, Seven Hills Camp Dam remains a valuable water resource for the surrounding area. Despite being uncontrolled, the dam features a spillway width of 30 feet to manage excess water flow, with a maximum discharge capacity of 122 cubic feet per second. Although the dam's condition assessment is currently "Not Rated," it undergoes regular state inspections to ensure its structural integrity and safety for both recreational and environmental purposes.

For water resource and climate enthusiasts, the Seven Hills Camp Dam represents a unique blend of recreational enjoyment and responsible water management in Erie County, New York. Its presence on the TR-E BR CAZENOVIA CREEK contributes to the local ecosystem while offering opportunities for outdoor activities. As a privately owned structure with state regulation and oversight, the dam serves as a model for sustainable water resource utilization in the region, balancing the needs of recreation with environmental protection.

Year Completed

1986

Dam Length

450

Dam Height

25

River Or Stream

TR-E BR CAZENOVIA CREEK

Primary Dam Type

Earth

Surface Area

3

Drainage Area

0.02

Nid Storage

23

Hazard Potential

Low

Nid Height

25
       
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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.