Master Drainage Plan – 30% Design Drawings

Background

In 2013, the City completed their Whitevale Master Drainage Plan – Municipal Class Environmental Assessment Report.  The recommendations from the report are as follows:

Intermittent Drainage Feature – Storm Flow Diversion to Whitevale Road Storm Sewer

  • Minor re-grading of the roadside ditch on the east side of North Road to accommodate a portion of the flood flows from the catchment area to the north.
  • Construction of new driveway culverts and a new storm inlet to the Whitevale Road storm sewer.
  • Install new Whitevale Road storm sewer, with increased size to accommodate the additional peak flows from North Road.
  • Replace the existing culvert crossing at North Road in order to convey low flows to the existing drainage feature.

North Road -Resurfacing & Grading

  • Re-surface asphalt road surface in order to reduce erosion and sediment discharging to the Whitevale  Road storm sewer system
  • Carry out minor re-grading along west roadside ditch in order to re-establish proper drainage and install / replace several driveway culverts to facilitate property access

Whitevale Road (East) – Rural Reconstruction

  • Replace the existing road with a new paved rural cross-section and grass ditches, similar to the  current road width.
  • Adjust the road profile to establish proper drainage and minimize flooding of  adjacent properties.
  • Construct a new storm sewer with properly spaced ditch inlets to prevent surface  flooding and erosion.

Whitevale Road (West) – Resurfacing

  • Re-surface asphalt road surface in order to reduce erosion and sediment discharging to West Duffins Creek.
  • Carry out minor re-grading along north roadside ditch in order to re-establish proper drainage and  reduce erosion of the granular shoulder.
  • Re-instate misaligned segment of storm sewer near outfall.
  • Replace the damaged storm sewer outfall with new structure & construct additional outlet enhancements (e.g., outlet pool) in order to improve storm runoff quality and reduce erosion within the valley.
  • Remove debris blockages identified at several manhole / ditch inlet locations.

Local Residential Roads – Local Road Improvements

  • Maintain the existing unpaved rural cross-section
  • Carry out local grading works (i.e. profile, road crown, ditches, etc.) to re-establish proper drainage and minimize flooding of adjacent properties.
  • Regular maintenance.

Update:

The city has confirmed that the implementation of the Master Drainage Plan will NOT take place in 2019 despite the original plan.

The detailed design is currently at 30% completion.  The current work scope includes:

North Road

  • Reconstruct road
  • Remove sidewalk on west side
  • Remove trees on east side, including many mature trees
  • Increase size of ditch on east side

Whitevale Road (East)

  • Reconstruct road with rural section
  • Remove sidewalk on south side
  • Remove select trees on south side

Whitevale Road (West)

  • Resurface road
  • No change to current configuration (i.e. no new sidewalks, curbs or ditch configuration)

Local Residential Roads

  • No changes or resurfacing are planned for Byron, Factory, Mill, Churchwin, Gladstone and Golf Club roads

A complete set of drawings can be downloaded here.