Garden Hill Dam Class Environmental Assessment

Satellite view of Garden Hill pond
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Painted turtles basked in the sun on a log in the Garden Hill laggoon

Ganaraska Conservation Is Seeking Public Input

Project Description

The Ganaraska Region Conservation Authority (GRCA), through consultant CIMA+, is undertaking a Class Environmental Assessment (EA) for the Garden Hill Dam.

A structural condition assessment was completed by a consultant in the fall of 2023, which made a number of recommendations for the GRCA to address various issues with the dam.

This Class EA study has been initiated to assess the existing site conditions and constraints, as well as develop potential alternatives to address the identified issues at the dam. Some alternatives may include rehabilitation, replacement, or removal. More information will be posted to this page as the study progresses.

Project Location

Garden Hill Dam is located on Ganaraska Road / Northumberland County Road 9, approximately 85 m west of Mill Street, within the hamlet of Garden Hill in Port Hope, ON (44.056876, -78.404794(opens in new tab)).

Public Consultation

The study team is currently developing a communications plan for public consultations and engagement. This project webpage will be updated on a regular basis as information becomes available, so we encourage interested parties to check back often.

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Important Updates

Updates will appear as they become available, please click on an update to open in a new tab. .

Garden Hill Dam control structure with safety booms in place in the water

Garden Hill Dam Class Environmental Assessment Moving Forward

08/31/2026
FOR IMMEDIATE RELEASE, August 31, 2026 (Port Hope, ON) — The Ganaraska Region Conservation Authority (GRCA) has begun the Class Environmental Assessment process for the Garden Hill Dam, after awarding the contract to a successful consultant. At their Aug. 20th meeting, the GRCA Board of Directors received an update report from GRCA Watershed Services Coordinator Cory Harris, P.Eng., indicating the GRCA has moved ahead with recommendations to prepare a request for proposal (RFP) and review...