Flood protection

Flooding can happen quickly and without warning at any time of the year. Knowing about flood risks and how to prepare for them will help keep you safe and minimize damage to your property.

 

Prepare for a flood

Prepare for a flood by creating an emergency preparedness plan and kit for you and your household.

  • Watch for alerts issued by Conservation Halton and Credit Valley Conservation
  • Take steps to prevent flooding in your home including extended downspouts away from the building, testing sump pumps regularly and storing your personal belongings and important documents in watertight containers on upper shelves/floors
  • Ensure street catch basins are not blocked and keep your eavestroughs clear
  • Move electrical appliances and other belongings above ground level
  • Remove toxic substances, such as pesticides and insecticides, from the areas at risk of flooding to prevent contamination and pollution
  • Make sure all basement windows are closed
  • If a flood warning is in effect, shut off electricity to areas that are at risk of flooding

When a flood is likely in your area

  • If there is any possibility of a flash flood, move immediately to higher ground. Do not wait for instructions to move.
  • Stay away from streams, drainage channels, creeks and other areas known to flood suddenly.

If you must prepare to evacuate

  • Keep your radio on to find out what areas are affected, what roads are safe, where to go and what to do if the local emergency officials ask you to leave your home.
  • Secure your home. If you have time, bring in outdoor furniture. Move essential items to an upper floor.
  • Turn off utilities at the main switches or valves if instructed to do so. Disconnect electrical appliances. Do not touch electrical equipment if you are wet or standing in water.
  • Move furniture, electrical appliances and other belongings to floors above ground level.
  • Remove toxic substances such as pesticides and insecticides from the flood area to prevent pollution.

If you have to leave your home

  • Follow the advice and directions of local emergency officials.
  • After you have evacuated your home, if water rose above your electrical outlets, baseboard or furnace, immediately call Oakville Hydro at 905-825-9400 to report it.
  • Take your emergency kit with you.
  • Do not walk through moving water. Six inches of moving water can make you fall. If you have to walk in water, do so where the water is not moving. Use a stick to check the firmness of the ground in front of you.
  • Do not drive into flooded areas. If floodwaters rise around your car, abandon the car and move to higher ground if you can do so safely. You and the vehicle can be swept away quickly.
  • Do not camp or park your vehicle along streams, rivers or creeks, particularly during threatening conditions.
  • Make arrangements for your pets.

If unfortunately your home has been flooded, here are some things to remember in the days ahead:

  • Use local alerts and warning systems to get information and expert informed advice as soon as available.
  • Stay away from damaged areas unless directed by emergency services.
  • Emergency workers will be assisting people in flooded areas. You can help them by staying off the roads and out of the way.
  • Return home only when authorities indicate it is safe.
  • Roads may still be closed if they have been damaged or are covered by water. If you come upon a barricade take another route.
  • If you must walk or drive in areas that have been flooded stay on firm ground. Avoid standing water areas as they may be electrically charged from underground or downed power lines.
  • Be safe on roads as they may have weakened and could collapse under the weight of a car.
  • Stay out of any building if it is surrounded by floodwaters.
  • Use extreme caution when entering buildings in case of  hidden damage.

Flood prevention tips

The Government of Canada provides 10 tips to make your home flood-ready and other online resources that help prevent flooding in your home.

  • Ensure your yard slopes away from your house, not towards it
  • Ensure that eavestroughs (gutters) and downspouts are clear and drain properly
  • Keep floor drains inside your home clear
  • Ensure window wells are free of debris
  • Ensure your drainage swales on your property are not blocked and are graded properly
  • Preserve grassed areas (pervious areas) within your property to allow for rainfall to infiltrate into the ground
  • Install weather protection sealant around basement windows and the base of ground-level doors
  • Assemble an emergency kit - flooding can happen when you least expect it.

Remember that anywhere it rains, it can flood. Just because you haven't experienced a flood in the past, doesn't mean you won't in the future. Flood risk isn't solely based on history; it's based on a number of factors including rainfall, topography, flood-control measures, river-flow and changes due to new construction and development.

To prepare for a flood, you should:

  • Build or purchase an emergency kit and make a family communications plan
  • Elevate the furnace, water heater and electric panel in your home if you live in an area that is prone to flooding or deemed at high risk
  • Install weather protection sealant around basement windows and the base of ground-level doors
  • Ensure downspouts drain a sufficient distance from your home to ensure that water flows away from the building
  • Consider installing a sump pump and zero reverse flow valves in basement floor drains
  • Do not store your important documents in the basement. Keep them at a higher level, protected from flood damage.

If you have ditches and culverts along your driveway, maintaining them is your responsibility. Keep them free of obstruction as they are the channel to carry excess water during rainfall. For more information visit the Ditches and Driveway Culverts page.

If you are widening your driveway, or applying for a curb cutting or culvert replacement, make sure you apply to the town for necessary permits. Compromised culverts and ditches along your driveway can flood easily. 

Sometimes flooding is caused by poor grading of a property, a sump pump has stopped working, a leaking pipe, a drain pipe pointed to an inappropriate area, or plugged weepers around a house.  It is the homeowner’s responsibility to maintain their property and to ensure it does not impact neighbouring properties. Reach out to your neighbour if you notice flooding on their property.

Learn more about a property owners responsibility on the Property Drainage and Grading page.


Town staff perform a number of activities to ensure the rainwater network operates as planned and that actionable responses are available if unexpected situations arise. These include: 

  • Pre-event activities: 
    • Monitoring, inspection and maintenance – staff  use several weather/flood reporting services, including the Conservation Authorities and use this information to prepare for pre-storm event activities such as patrol inspections and pro-active works. Proactive works include clearing inlets / outlets and pushing back snow banks identified by patrol inspections when potential significant rainfall and/or fast melt scenarios are in the forecast.
  • Service calls
    • All flood related service calls are to be directed to ServiceOakville as this will allow the town to track the event and document activities for post review and/or follow-up.
  • During-event activities: 
    • Emergency support/response – during a storm event, staff monitors service calls and are deployed to inspect, service, support and remedy (where possible) emergency issues that arise such as clearing blockages or cordoning off and securing an area until flood waters subside. 
  • Post event
    • Support/response - staff will respond to flood related service calls to examine cause and address public infrastructure elements if/when found to be the cause or contributor. If simple, the remedy to address the issue will be actioned in a timely manner. Often, an issue requires further review and potential for inclusion in future capital programs. Staff will also clean up roads and rights of way following a flood event where debris and material are left behind once flood waters subside. 
    • Post event reviews - de-briefs are conducted to ensure simple remedies are completed and issues have been resolved and include adding the location to proactive inspection programs; more extensive investigation/engineering review and/or addition to the capital program for longer term improvements.