For more than three decades, the Town of Coaldale and Lethbridge County, located within the Malloy Drainage Basin, have experienced destructive floods that can damage homes, businesses and public infrastructure. Together with the St. Mary River Irrigation District (SMRID), the town and county have been working to address and mitigate the flooding dangers faced by their residents.

Thanks in large part to Alberta government funding, groundbreaking is now underway for a new stormwater management facility that will reduce the risk of overland flooding in the region. This will help protect lives, livelihoods and critical infrastructure in southern Alberta for years to come.

Alberta’s government provided $3.73 million in funding through the Drought and Flood Protection Program to support critical community upgrades, including constructing new stormwater ponds and building a new South Coaldale regional stormwater management facility that will increase regional stormwater capacity and help combat overland flooding.

“This project is an important step toward protecting southern Albertans from future floods. By investing in the right infrastructure today, we're building a safer, stronger province for generations to come.”

Rebecca Schulz, Minister of Environment and Protected Areas

“I am pleased to see work underway for a new facility to help Coaldale manage stormwater effectively and help to keep their homes, businesses and farmland protected. This is a great example of working together to build a more resilient future for the region.”

Grant Hunter, Associate Minister of Water

“For decades, Coaldale has been vulnerable to flooding events that have impacted homes, businesses and essential infrastructure. This new stormwater management facility is a long overdue and much-needed investment in public safety and community resilience. We’re proud to be working alongside our regional partners to deliver a solution that not only protects our residents today, but also positions Coaldale for sustainable growth into the future.”

Jack Van Rijn, mayor, Town of Coaldale

“We see significant value in this project. This facility is an investment in our communities to keep residents safe and protect the agricultural land that is so critical to the success of our region. By working in partnership with Coaldale and SMRID, we can ensure a lasting and long-term benefit for generations. Regional collaboration is essential to leveraging our collective resources and achieving outcomes that benefit the entire area.”

Tory Campbell, reeve, Lethbridge County

“The SMRID is thrilled to see the south Coaldale regional stormwater management facility  moving forward and are proud to support this important project. The SWMF will benefit the communities in the Malloy Drainage Basin, and southern Alberta more broadly, and play a critical role in flood mitigation in the future. The project exemplifies the spirit of regional partnership and co-operation, and will support the social, environmental and economic objectives of the area and protect homes, property and irrigation infrastructure that is vital to economic prosperity in the region.”

David Westwood, general manager, St. Mary River Irrigation District

The five-year, $125-million Drought and Flood Protection program is helping municipalities and Indigenous communities protect critical infrastructure from flooding and drought and improve public safety. The next round of funding applications will open in October, with another $25 million available to protect businesses, families and communities.

Quick facts

  • The new south Coaldale stormwater management facility will help mitigate runoff from a 3,662-hectare rural catchment area during 1:100-year storm events, reducing the risk of future disasters.
  • The facility will include 100,000 cubic metres of stormwater storage.
  • The total project cost is estimated at $5.3 million, with $3.73 million being funded through Alberta’s Drought and Flood Protection Program.
  • Once constructed, the facility will provide significant protection to over 750 residences, roadways, municipal infrastructure and agricultural land.
  • Construction will begin this spring and is expected to be complete by the fall of 2026.

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