Burke Mountain uses a “design with nature approach” to development and incorporates vegetated and natural systems to handle stormwater.
A key feature of planned development at Burke Mountain is a low impact, ‘natural systems approach’ to stormwater management. As a major land owner in the area Wesbild is committed to utilizing sustainable, best management, stormwater practices in the development of its land. Wesbild’s approach will embrace evolving Low Impact Development (LID) strategies, a ‘design with nature’ philosophy, to create a greener community and achieve a sustainable interface for stream protection.
The primary focus of this manual is on the small, frequently occurring rainfalls because:
• Small events account for most of the total rain volume that falls each year.
• Small events are manageable.
• Retaining the small events reduces ‘wear- and-tear’ in watercourses which impacts fish habitat.
• Landscaping based solutions are effective in managing and retaining small events.
At the site level, the ‘design with nature’ approach integrates and optimizes the use of soil, plants and trees, and surface treatments to capture small rainfall events where they fall. As plants and trees mature with time the site level solutions are enhanced.
The approach is tiered, in that methods at the site scale are directly linked to what we are trying to achieve at the subdivision, neighbourhood and watershed scales. When implementing landscape based solutions at the site level, success is measured at the subdivision and neighbourhood scale.
Greening of a Neighborhood: Over time, the progressive ‘greening’ of a neighbourhood occurs as landscaped areas and trees mature with time. Mature landscaping intercepts more rain, provides enhanced mulch and has well developed root systems that draw water. This greening results in cumulative benefits that further mitigates the initial changes to the natural water balance.
For the Burke Mountain development Wesbild require builders to implement seven site level low impact development methods:
• Soil Layer Thickness and Vegetation
• Roof Downspout Disconnection
• Terraced Landscaping
• Rain Gardens
• Infiltration Trenches and Pits
• Runoff Dispersal
• Permeable Pavements
(2015) Blogpost by the Partnership for Water Sustainability in British Columbia. PDF: (2004) Published by the Wesbild, developer of Burke Mountain.