North & South Alouette River Flood Risk Information
The City has exerted a lot of effort studying these two watercourses over the years culminating in the North Alouette and South Floodplain Analysis in 2016 and the completion of Integrated Stormwater Management Plans in 2021. Further information on these efforts can be found at this link https://www.mapleridge.ca/2707
Stay on High Ground
We Are Surrounded by Rivers & Mountains That Can Cause FloodingMaple Ridge is no stranger to rain, but, sudden and heavy rainfalls can pose a serious risk. Localized flooding can occur when water is unable to drain away, river levels may rise quickly and become dangerously fast, roads may become impassible, and combined with warm temperatures, melting snow pack can develop into landslides and debris flows on mountain sides and steep gullies.
How to Prepare
- Review Before an Emergency for general information on how to prepare.
- Build or restock your Emergency Preparedness Kit.
- Check local forecasts and consider the conditions, especially if you are planning to enjoy the trails and river systems.
- Prepare your family plan and your property.
- Check with an insurance agent on flood insurance for your home and business, and take a personal inventory of belongings.
- Ensure roof gutters are clear and storm drains are free of debris such as leaves.
- If you face a threatening flood situation, park vehicles away from streams and waterways, move electrical appliances to upper floors and make sure to anchor fuel supplies. Listen to local officials if you are asked to evacuate.
- If your home is near water, note if the water level begins to rise quickly.
- Avoid getting close to fast moving water as banks may erode without warning.
- Keep a close eye on children and pets as they may not understand the dangers.
- Plan alternate routes before driving in the event that low lying roads become flooded. Slow down and provide yourself with extra time.
- Never drive through moving water, even if you are familiar with the road. A vehicle can be swept away in as little as 12 inches of water.
- Monitor the local media and have flashlights on hand in case the power goes out.
- Check your property for damage and clear away debris from rain gutters and storm drains.
- Even though the rain has stopped, waterways may still pose a risk. Be cautious until you are certain of the conditions.
- If you have suffered from flood damage, contact your insurance company.
- Download our General Flood Cleanup (PDF).
Recognize the Danger SignsHeavy snow melt may contribute to landslides and dangerous debris in creeks and waterways. Be safe and don’t go down to watch the rushing water. If you notice trees beginning to lean and bend near your home, or cracks developing in the hillside, consult an engineer or contact local authorities.
If you live near a waterway, a change in water colour or rapid change in water level (especially a drop) could indicate a problem upstream. Call your local fire, police or public works department immediately if you suspect something out of the ordinary.
SandbaggingIt takes two people about one hour to fill and place 100 sandbags, giving you a one-foot-by-20-foot wall. Make sure you have enough sand, burlap, plastic bags, shovels and time to prepare properly. Watch this Sandbagging Tips video for helpful instructions. Download our How-To Sandbag (PDF).
Current ConditionsStay informed with updates on current conditions in our community. Our Facebook and Twitter social media channels allow people to receive updates on their computers, tablets or smart phones.
Information on weather, gauges, hydro, natural gas and statistics on past floods can be found on:
Weather and River Forecasts, Live Gauges and Utility Information
- Alouette Dam Elevation
- Alouette River (North) Gauge @ 132 Avenue
- Alouette River (South) Gauge @ 232 Street
- BC Hydro Power Outages
- British Columbia River Forecast Centre
- Environment Canada
- FortisBC Flooding Information
- Fraser River Gauge at Mission