Green Infrastructure

Green communities – ‘today’s expectations are tomorrow’s standards’ is a provincial government mantra in British Columbia. Since the built and natural environments are connected, design with nature to protect watershed function. The Green Communities Initiative provides a policy, regulatory and program framework for enabling local governments to create more compact, more sustainable and greener communities. Lead by example. Showcase innovation. Celebrate successes.

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What is “Green Infrastructure”? – Looking back to understand the origin, meaning and use of the term in British Columbia

“Two complementary strategies can ‘green’ a community and its infrastructure: first, preserving as much as possible of the natural green infrastructure; and secondly, promoting designs that soften the footprint of development,” wrote Susan Rutherford. “Green infrastructure design is engineering design that takes a ‘design with nature’ approach, to both mitigate the potential impacts of existing and future development and growth and to provide valuable services.”

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“The Partnership for Water Sustainability in British Columbia is the keeper of the GIP legacy,” observes Paul Ham, a Past-Chair of the Green Infrastructure Partnership

“I see my years of chairing the Green Infrastructure Partnership as helping to get the ball rolling and ideas disseminated, on green infrastructure, all of which has subsequently been taken up by others to a much greater degree of implementation and success. Our efforts a decade ago moved the state of-the-art of green infrastructure to a more mainstream level,” said Paul Ham.

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Asset Management for Sustainable Service Delivery: “Alignment with the BC Framework would enable and support the transition of drainage practice from ‘voodoo hydrology’ to a water balance approach,” says Kim Stephens, Partnership for Water Sustainability

“Among land and drainage practitioners, how water gets to a stream and how long it takes is not well understood. Unintended consequences of this failure to ‘get it right’ include degraded urban streams, more flooding, more stream erosion, less streamflow when needed most, and an unfunded infrastructure liability,” states Kim Stephens. “In 2006, American engineer and textbook author Andy Reese coined the term voodoo hydrology to both describe drainage practice and draw attention to the need for changing the way drainage engineers practice their trade.”

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Asset Management BC Creates Formal Partnership to Help Drive Integrated Asset Management

“The partnership brings together core groups, all with a strong commitment individually and collectively to asset management,” stated Wally Wells. “Over several years, the knowledge base of asset management increased and was shared primarily through Asset Management BC (AM BC), including the development of tools and offering training programs. As asset management became a requirement in funding programs, AM BC became the focus for information including the core BC document ‘Asset Management for Sustainable Service Delivery: A BC Framework’. “

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FLASHBACK TO 2009: “The Fused Grid combines the geometries of inner city grids and of the conventional suburbs.” stated Fanis Grammenos

The fused grid network pattern recently passed another test with top marks – the traffic safety test. Planers using it for its rainwater management advantages can now be confident that it will also enhance safety. “The city plan is organized in repeatable wards, with a square in the centre, which is visible to half of the homes in each ward”, explained Fanis Grammenos, “The square is protected from heavy traffic since through streets are located at the boundaries of the ward, leaving the centre relatively calm for casual strollers.”

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Early outcomes of ‘Ecological Accounting Process’ showcased at Blue Ecology Workshop (November 2017) – “This unique approach accounts for the ecological services made possible by watershed hydrology,” said Tim Pringle, EAP Chair

“Initially, we saw EAP as a tool (i.e. ‘the protocol’) that would help practitioners calculate the opportunity cost of balancing ecological services with drainage infrastructure. However, our thinking has evolved over the past year. Testing the approach through two demonstration applications has resulted in this defining conclusion: EAP is a process, not a protocol. Thus, we are rebranding EAP as the Ecological Accounting Process,” stated Tim Pringle.

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The Economist explains: Why are Chinese cities flooding?

“Flooding has become a deadly problem in China, especially in major cities. As this Economist article notes, the country’s urban land has more than doubled in the last 20 years, and cities sometimes expand right into the floodplains,” wrote Janice Kaspersen. “Sponge cities are an approach to what we commonly call green infrastructure—an attempt to reduce flooding and infiltrate stormwater runoff in some of the areas most affected by rapid urbanization.”

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China is building 30 ‘sponge cities’ that aim to soak up floodwater and prevent disaster

“Launched in 2015, the Sponge City Initiative invests in projects that aim to soak up floodwater. The projects are being built in 30 cities. By 2020, China hopes that 80% of its urban areas will absorb and re-use at least 70% of rainwater,” wrote Leanna Garfield. “The initiative is facing some challenges. After surveying all 30 cities, the researchers noticed several roadblocks, including planning models that are too homogeneous and not locally specific.”

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“The Liuzhou Forest City is the first experiment of the urban environment that’s really trying to find a balance with nature,” said Stefano Boeri, an internationally acclaimed architect

In 2016, China’s State Council released guidelines shifting the focus to the “economic, green and beautiful.” This shift created the opportunity for Stefano Boeri to implement his Forest City vision. The project comes on the heels of Vertical Forest, two residential towers in Milan covered in the equivalent of five acres of forest. “We started to imagine if it was possible to create an urban environment created from many of these vertical forests,” stated Stefano Boeri.

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GREEN INFRASTRUCTURE IN THE TOWNSHIP OF LANGLEY: “The structure is set up to support good ideas of an integrated nature so that staff can flourish in the work environment,” stated Stephen Richardson, the Township’s Director of Development Services

“Anticipating and responding to growth requires nimbleness on our part,” stated Stephen Richardson. “Technical teams input to long-range planning. There is a constant feedback loop. We raise the bar each time through an iterative process. This strengthens standards of practice. The continual enhancements are reflected in our neighbourhood plans. It is a team approach. Staff share and learn from each other.”

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GREEN INFRASTRUCTURE IN THE TOWNSHIP OF LANGLEY: “Our integrated process results in a better community. In turn, this attracts people who want to be here,” stated Dave Cocking, Manager of the Township’s Green Infrastructure Services Department

“The infrastructure we build today is integrated. We recognize that each part is a component of the whole. We strive to make all the parts work together without compromising any component,” stated Dave Cocking. “Working together, we are solving community design issues. We have a shared goal – improve the community and provide amenities. This requires integrated thinking.”

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FLASHBACK TO 2004: City of Courtenay established a precedent when it was the first BC municipality to adopt and implement a ‘Soil Depth Policy’ for rainwater management

The policy was adopted in January 2004 immediately after the City became a founding member of the Water Balance Model Partnership. The requirement was included in the Official Community Plan. “Because the City places importance on the soil sponge as a rainwater management tool, we explored options to ensure that developers and house builders fulfil their obligations to provide and preserve the minimum required depth,” stated Sandy Pridmore.

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