Erosion Management

The prevention, elimination or reduction of risk to life and property from flooding and erosion is one of the core mandates of the Toronto and Region Conservation Authority (TRCA) under the Conservation Authorities Act. TRCA’s Erosion Management Program seeks to fulfill this mandate through the ongoing identification and remediation of erosion hazards throughout our jurisdiction and by encouraging proactive prevention, protection, and management of erosion issues on private and public property.

Background

The Conservation Authorities Act gives Conservation Authorities the power to establish and undertake initiatives on private and public land to help achieve its objectives, and can include:

  • monitoring of areas affected by flooding, erosion and or slope instability;
  • study and investigation of the watershed; and
  • remediation of erosion and/or slope stability hazards

With respect to erosion control and remediation of erosion and/or slope instability prone-areas, TRCA has a long-standing Erosion Management Program to monitor these hazards, and to implement stabilization works on a priority basis to the limit of available funding each year. This program is funded annually by TRCA’s partners at the City of Toronto, Peel Region, York Region and Durham Region, and on a project-by-project basis by the Ministry of Natural Resources and Forestry.

Who We Are

TRCA’s Engineering Projects team is comprised of multidisciplinary professionals who have expertise in assessing, prioritizing, and remediating erosion and or slope stability issues within the valley systems and along the Lake Ontario shoreline.

What We Do

The majority of funding is applied toward the maintenance of existing erosion control structures along TRCA’s rivers and valleys that protect public greenspace, park amenities and municipal infrastructure; however this program is extended to the protection of private property where homes and other essential structures have been confirmed as at-risk by erosion or instability as funding and priorities permit.

Although TRCA is not compelled legally to assist private landowners with erosion control works, TRCA offers this assistance recognizing that staff has considerable experience in erosion hazard management, and the ability to support TRCA’s municipal partners by mitigating past development decisions with cost-effective solutions that also foster resilient watersheds and contribute to the expansion of safe and enjoyable public greenspace. To determine where available annual funding is recommended to be allocated, TRCA monitors its existing flood and erosion control structures and known erosion hazard sites on both public and private property, and assigns a priority ranking which helps determine whether detailed study, maintenance or remedial works, or further monitoring are recommended. Monitoring is carried out year-round in response to public inquiries or following severe weather events, but the majority of inspections are conducted between May and September each year.

Where staff has recommended that erosion control works be carried out to benefit private property, the benefiting landowners are subject to the execution of a binding erosion control agreement which requires the benefiting landowner(s) to contribute to the cost of the project in accordance with current TRCA policy, which originates from a staff report brought forward to TRCA’s former Flood Control and Water Control Advisory Board in 1981. This operational criteria was adopted as policy by the Authority by Resolution #71/81 on October 9, 1981.

The current Private Landowner Contribution for Erosion Control Works Policy (revised January 27, 2017) can be found here:

Private Landowner Contribution for Erosion Control Works

How TRCA’s Erosion Management Program Can Help Landowners

TRCA’s extensive experience identifying and remediating erosion and stability hazards has established us as leaders in erosion hazard management. We are always happy to meet with property owners who live in our jurisdiction, to discuss their stability concerns, and share smart landscaping strategies that can help improve the resiliency of their property against flooding and erosion.