Cookies help us to understand how you use our website so that we can provide you with the best experience when you are on our site. To find out more, read our privacy policy and cookie policy.
Manage Cookies
A cookie is information stored on your computer by a website you visit. Cookies often store your settings for a website, such as your preferred language or location. This allows the site to present you with information customized to fit your needs. As per the GDPR law, companies need to get your explicit approval to collect your data. Some of these cookies are ‘strictly necessary’ to provide the basic functions of the website and can not be turned off, while others if present, have the option of being turned off. Learn more about our Privacy and Cookie policies. These can be managed also from our cookie policy page.
Strictly necessary cookies(always on):
Necessary for enabling core functionality. The website cannot function properly without these cookies. This cannot be turned off. e.g. Sign in, Language
Analytics cookies:
Analytical cookies help us to analyse user behaviour, mainly to see if the users are able to find and act on things that they are looking for. They allow us to recognise and count the number of visitors and to see how visitors move around our website when they are using it. Tools used: Google Analytics
Social media cookies:
We use social media cookies from Facebook, Twitter and Google to run Widgets, Embed Videos, Posts, Comments and to fetch profile information.
Share Markham Village & Unionville Flood Control Study on FacebookShare Markham Village & Unionville Flood Control Study on TwitterShare Markham Village & Unionville Flood Control Study on LinkedinEmail Markham Village & Unionville Flood Control Study link
Markham's Flood Control Program is a long term, City-wide initiative to improve storm drainage capacity and limit surface and basement flooding risks in urban areas. Improvements will provide a more consistent level of service across Markham and help protect both public and private property. The program will also make critical infrastructure more resilient to climate change and extreme weather.
To help fund the program, the implementation of a City-wide Stormwater Fee was adopted by Council on November 26, 2013. This Fee will fund flood control improvement works that lower flood risks and provide a more consistent level of service across the City.
As part of Markham’s Flood Control Program, the City completed a study to investigate flooding associated with drainage systems in Markham Village and Unionville. The Markham Village area experienced considerable flooding during the July 2017 storm events.
The current storm sewer system does not have adequate capacity to handle stormwater runoff during large storm events. For the most part, the area was designed and constructed prior to 1978 when the City began requiring drainage system be designed for the 100-year storm event. When the storm sewer system capacity is exceeded, flooding of basements, roads and properties is possible in these areas.
Objective of the study
To identify and understand the causes of flooding in the study area:
Develop a range of alternative solutions to reduce flooding and flood damages
Recommend the preferred solution or suite of solutions to best reduce flooding and flood damages
Establish the funding, approvals and other activities needed to implement the recommended solutions.
While the City’s program will improve the effectiveness of its drainage systems over the long term, businesses and residents are encouraged to take action to reduce the risk of flood damage on their own properties. This can often be achieved through maintenance of their private drainage system, or where appropriate, implementation of improvements or practices that can reduce flood risks and damages.
Flood Mitigation Plan - Markham Village
Project Cluster 1 (Markham Village) – Church St. East/Parkway Ave. Area Drainage Improvements
Diversion of Flow from Parkway Ave., Sir Lancelot Dr., Jack Crt., Jill Crt., Rose Way to Church St., and upgrade of Church St. System
Project Cluster 2 (Markham Village) - Ramona Blvd., Parkway West, Church West, Friar Tuck, Daniel Court/Fincham Improvements
Sewer Upgrades
Project Cluster 4 (Markham Village) - Milne Lane, Rouge St., Major Buttons/Squire Bakers Lane System Improvements
Upgrades of three systems
Flood Mitigation Plan - Unionville
Project Cluster 3 (Unionville) - Main St., East Dr., Pomander Rd., Gainsville Ave., Fred Varley Dr.
Diversion of Emily Carr St. and Gainsville Ave. to Pomander St. System, and upgrade of Pomander St. Sewer
Optimization of Wembley Ave. System
Upgrade of Fred Varley System at Tuscay Crt./Markhaven Rd., East Dr., Main St.
Implementation Schedule
Markham's Flood Control Program is a long term, City-wide initiative to improve storm drainage capacity and limit surface and basement flooding risks in urban areas. Improvements will provide a more consistent level of service across Markham and help protect both public and private property. The program will also make critical infrastructure more resilient to climate change and extreme weather.
To help fund the program, the implementation of a City-wide Stormwater Fee was adopted by Council on November 26, 2013. This Fee will fund flood control improvement works that lower flood risks and provide a more consistent level of service across the City.
As part of Markham’s Flood Control Program, the City completed a study to investigate flooding associated with drainage systems in Markham Village and Unionville. The Markham Village area experienced considerable flooding during the July 2017 storm events.
The current storm sewer system does not have adequate capacity to handle stormwater runoff during large storm events. For the most part, the area was designed and constructed prior to 1978 when the City began requiring drainage system be designed for the 100-year storm event. When the storm sewer system capacity is exceeded, flooding of basements, roads and properties is possible in these areas.
Objective of the study
To identify and understand the causes of flooding in the study area:
Develop a range of alternative solutions to reduce flooding and flood damages
Recommend the preferred solution or suite of solutions to best reduce flooding and flood damages
Establish the funding, approvals and other activities needed to implement the recommended solutions.
While the City’s program will improve the effectiveness of its drainage systems over the long term, businesses and residents are encouraged to take action to reduce the risk of flood damage on their own properties. This can often be achieved through maintenance of their private drainage system, or where appropriate, implementation of improvements or practices that can reduce flood risks and damages.
Flood Mitigation Plan - Markham Village
Project Cluster 1 (Markham Village) – Church St. East/Parkway Ave. Area Drainage Improvements
Diversion of Flow from Parkway Ave., Sir Lancelot Dr., Jack Crt., Jill Crt., Rose Way to Church St., and upgrade of Church St. System
Project Cluster 2 (Markham Village) - Ramona Blvd., Parkway West, Church West, Friar Tuck, Daniel Court/Fincham Improvements
Sewer Upgrades
Project Cluster 4 (Markham Village) - Milne Lane, Rouge St., Major Buttons/Squire Bakers Lane System Improvements
Upgrades of three systems
Flood Mitigation Plan - Unionville
Project Cluster 3 (Unionville) - Main St., East Dr., Pomander Rd., Gainsville Ave., Fred Varley Dr.
Diversion of Emily Carr St. and Gainsville Ave. to Pomander St. System, and upgrade of Pomander St. Sewer
Optimization of Wembley Ave. System
Upgrade of Fred Varley System at Tuscay Crt./Markhaven Rd., East Dr., Main St.
Please complete this survey form if you would like to be contacted regarding further development with the Markham Village & Unionville Flood Mitigation project.
If you have any feedback regarding the project and/or public meeting, we'd love to hear from you.
Share Markham Village & Unionville Flood Survey on FacebookShare Markham Village & Unionville Flood Survey on TwitterShare Markham Village & Unionville Flood Survey on LinkedinEmail Markham Village & Unionville Flood Survey link
As part of Markham’s Flood Control Program, the City completed a study to investigate flooding associated with drainage systems in Markham Village and Unionville. The Markham Village area experienced considerable flooding during the July 2017 storm events.
To identify and understand the causes of flooding in the study area:
