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Community Meeting – Drainage Issues in the Lakeview Park area
September 9, 2020 @ 6:30 pm - 8:00 pm
Opening statements Councillor Kavanagh and CBLCA President Kevin Brewer
City Staff will make presentation.
- The City is developing a city-wide ditch strategy due at the end 2020 that will include standards and guides for the maintenance of ditches.
- The City recognizes that there is an issue – What has happened over time in this area
- Drainage improvement at Lakeview Park was done in 2015.
- The City currently enforces by-law infractions for infill or culvert blockage on a case by case basis if it impacts neighbour’s lot.
Causes of drainage Issues:
- High driveway culverts
- Lack of maintenance and ditch infill
- Not a lot of flow in this area
- Show map of digital elevation models for the area.
- Clay earth slows absorption of water
- Lawns may need to be regraded
- Sump pump not efficient or sump pump outlet not clearing water properly
- Residents don’t want to (or can’t) pay to fix their culvert or regrade their lawns
How to avoid issues:
- Keep culverts and ditches clear
- Sump pumps
- Sump pumps must have an outlet that leads away from the home, ideally to the ditch
- Is the right sump pump being used? (City recommendations / minimum requirements for sump pumps)
- Groundwater is very high in the neighbourhood making sump pumps necessary
- Proper grading of lawns.
Discuss private approach agreement and how to determine who is responsible:
Examples of situation where the resident is responsible
- When the ditches are functioning, but water is being stopped by a collapsed culvert.
- For accumulated grit from road and leaves
Example of situation where the City is responsible
- If the city determines that the ditch must drop a grade, then the city would replace the culverts and reset the ditches.
Mitigation options that can be discussed with the community:
- Have stormwater sewers installed – there are about 200 properties. (Note: Ditches promote groundwater absorption)
- Re-instate ditches
- Cost $1M to $1.5M to be shared by residents
- If reinstated some ditches will be very deep and more difficult to maintain.
- Enforce by-law on property owners with ditch infill – Normally done on a case by case basis
- High driveway culverts need to be fixed to allow flow (however, only fixing these could cause problems down the line)
Q & A with Community