Flooding Strategy and Stormwater Management Master Plan Update

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Project Goals

Stormwater Management Master Plan Update

The 2021 Stormwater Management Master Plan Update will assess the relevant findings of the previous Master Plan, incorporate future growth and demands on the network, identify areas where gaps in information exist, and update the plan accordingly. The goals and policies identified in this update will include strategies to improve and minimize the negative impacts of flooding and stormwater movement, improve safety, preserve local character, and protect the natural environment.

Innisfil Flooding Strategy

Like many Canadian municipalities, flooding within the Town has become a great concern for the municipality and residents. The completion of a Flooding Strategy will allow the Town to look more holistically at this concern, proactively identify areas of concern and potential strategies, explore innovative, cost effective and environmentally sustainable solutions, and create a prioritized action plan to be incorporated into the Town’s short, medium and long term capital budget planning. A strategy is needed to allow the Town to identify and effectively prioritize areas of concern and create a plan for cost effective, environmentally sustainable and innovative solutions.

Project Status

The Stormwater Management Master Plan Update and Innisfil Flooding Strategy project has been awarded to an Engineering Consultant (Aquafor Beech Limited). The Engineering Consultant is beginning to review all stormwater related background information.

Stay In The Loop!

This page will continue to be updated as the project progresses. Please follow this project for public engagement opportunities, surveys and status updates.

Project Goals

Stormwater Management Master Plan Update

The 2021 Stormwater Management Master Plan Update will assess the relevant findings of the previous Master Plan, incorporate future growth and demands on the network, identify areas where gaps in information exist, and update the plan accordingly. The goals and policies identified in this update will include strategies to improve and minimize the negative impacts of flooding and stormwater movement, improve safety, preserve local character, and protect the natural environment.

Innisfil Flooding Strategy

Like many Canadian municipalities, flooding within the Town has become a great concern for the municipality and residents. The completion of a Flooding Strategy will allow the Town to look more holistically at this concern, proactively identify areas of concern and potential strategies, explore innovative, cost effective and environmentally sustainable solutions, and create a prioritized action plan to be incorporated into the Town’s short, medium and long term capital budget planning. A strategy is needed to allow the Town to identify and effectively prioritize areas of concern and create a plan for cost effective, environmentally sustainable and innovative solutions.

Project Status

The Stormwater Management Master Plan Update and Innisfil Flooding Strategy project has been awarded to an Engineering Consultant (Aquafor Beech Limited). The Engineering Consultant is beginning to review all stormwater related background information.

Stay In The Loop!

This page will continue to be updated as the project progresses. Please follow this project for public engagement opportunities, surveys and status updates.

  • Project Background Information

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    Stormwater Management Master Plan Update

    In 2009, the Lake Simcoe Conservation Authority (LSRCA) implemented the Lake Simcoe Protection Plan (LSPP) in order to reduce discharge of pollutants, phosphorus, and restore self-sustaining cold water fish communities as further identified in the plan. Municipalities were given 5 years to implement Stormwater Management Master Plans from the date the LSPP came into effect.

    In order to meet the requirements, the Town of Innisfil (Town) created a two-part Comprehensive Storm Water Management Master Plan (CSWM-MP). The first part of the CSWM-MP (Stormwater Management Plan Part 1) was completed in 2012 and can be viewed on the Town’s website under the following link: Stormwater Management Master Plan Part 1(External link)

    The second part of the CSWM-MP (Final Comprehensive Stormwater Management Master Plan) was completed in 2016 and can be viewed on the Town’s website under the following link: Comprehensive Stormwater Management Master Plan

    (External link)

    The CSWM-MP completed in 2016 provided a 10-year capital project implementation plan. Since it's acceptance, various Storm Water related Town projects have been designed and constructed to improve stormwater quality within the Town of Innisfil.

    In order to remain compliant with the LSPP and the Town of Innisfil's needs, the Town has begun the process of updating the Stormwater Management Master Plan (SWM-MP).

    Innisfil Flooding Strategy

    Flooding has been a growing concern within the Town of Innisfil as flooding events continue to increase due to development of upstream lands and the side effects of global warming. Flooding due to snowmelt events, heavy and prolonged rainfall events, ice jams and or a combination thereof are increasing. In recent years, more short duration heavy rainfall events have become more frequent which has been a major contributor to many flooding events experienced within the Town.

    Flooding possesses an extreme hazard to people, property, and the environment. Though flooding can be experienced anytime throughout the year, the largest flooding events can be experienced during the spring thaw which usually occurs anytime from March – May. As detailed in the Ontario 2020 Flooding Strategy, flooding is considered the most significant natural hazard in Ontario.

    Within the Town of Innisfil, various creeks, tributaries, and channels travel through private properties, under roadways, and confined areas with various aged development. The Town's Operations Staff dedicate many resources preparing for and dealing with major flooding events. Annual flooding has been an increasing concern to the community.

Page last updated: 11 August 2021, 06:05