Winnipeg, MB – In the February Outlook Report, issued on February 23, 2018, the Province of Manitoba advised that the risk of overland flooding is low for most southern Manitoba basins, including the Red and Assiniboine River basins. The Report also noted that ice jam related flooding could be a concern due to above normal ice thickness on many southern Manitoba rivers.
The City is actively preparing for a variety of flood scenarios including potential ice effects on river levels. Preparations include ensuring that all flood protection infrastructure is operable and activated, identifying at-risk properties and liaising with stakeholders.
City staff will continue to monitor river levels and work closely with the Province in monitoring the situation and adapt protection measures accordingly.
Springtime thaws also increase the risk of basement flooding across the city. When river levels are high, the normal capacity of the sewer system is reduced. With heavy rains, there is an increased risk of overloaded sewers backing up through house sewer lines and flowing into basements that aren’t protected.
Although basement flooding is a risk at any time of the year, the risk increases with high river levels because the sewer system must then rely heavily on pumping stations rather than gravity to carry the rainfall runoff.
Homeowners are reminded to take steps to protect their homes and property.
- Residents who live along the river should move or secure any structures or equipment near the water’s edge, such as docks, sheds, gazebos, irrigation pumps, and recreational equipment. The rising river level will affect each property owner differently.
- To ensure maximum protection against basement flooding, arrange for a licensed plumber to install a sewer line backup valve and a sump pit with pump in the basement.
- Inspect backup valves and sump pump drainage systems to make sure they are functioning properly.
- Ensure drainage is directed away from the home by extending downspouts away from the basement walls and ensuring the earth is built up around the house.
Property owners are reminded it is against the law to drain sump pump water into the basement floor drain or any other part of the house plumbing system, as it can overtax the sewer system placing their basement and those of their neighbours at risk of flooding and damage.
More information is available on the following web pages:
Protect Your Home from Basement Flooding
Current River Levels
Daily Red River Levels at James
City of Winnipeg Emergency Preparedness Program
How does the City of Winnipeg prepare for river flooding?
The public is also encouraged to follow the City of Winnipeg on Facebook and Twitter (#WpgFlood) for flood updates.