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Archive for the ‘Green Infrastructure’ Category

The Landscape Architecture of Richard Haag: From Modern Space to Urban Ecological Design / University of Washington Press

The Landscape Architecture of Richard Haag: From Modern Space to Urban Ecological Design / University of Washington Press

If landscape architect Richard Haag had stopped with Gas Works Park and Bloedel Reserve in Seattle, Washington, “these two projects alone would have assured his place in American landscape architectural history,” Marc Treib asserts in the forward to the new book, The Landscape Architecture of Richard Haag: From Modern Space to Urban Ecological Design, by Thaïsa Way, ASLA, a professor of landscape architecture at the University of Washington. Yet these two projects are but a fragment of the works that have earned him fame in the realm of urban ecological design. In the book, Way places Haag’s nearly five decade-long careers as a landscape architect, activist, and teacher in the context of the “changes in the practice of landscape architecture” in the U.S over the same time period, ultimately providing a lens through which landscape architects can study urban ecological design.

The book is organized both thematically and chronologically, starting with Haag’s humble upbringing in rural Kentucky. Haag’s family was closely tied to the land in their agrarian community of Jeffersontown, and the legacy of successful farmers and growers there “shaped Haag’s view of the world as he has described it: living and working with nature as a lover.” This mindset intersected with an increasing focus on the scientific understanding of ecological processes that was taking hold in profession just as Haag began learning about it. His curiosity about landscape architecture led him to academia. But despite his extensive education at the University of Illinois, the University of California at Berkeley, and Harvard’s Graduate School of Design — as well as his apprenticeships under Modernists Hideo Sasaki and Dan Kiley — Haag remained true to his roots. As Way states, he has been known to frequently quip that one should “never trust a landscape architect without mud on his shoes.”

Haag on a tractor / Washington University PRess

Haag on a tractor / University of Washington Press

Perhaps much of Haag’s success can be attributed to the many contrasts he created for himself in his professional life. Though he had a deep tie to his rural hometown, and always sought to return to it, he pursued his interests in Japanese design through a Fulbright scholarship. Way’s portrayal of Haag’s time in Japan is enough to convince any budding landscape architect to study in Kyoto. He then jumped on the bandwagon of California residential design in the early 1950s and finally headed to the Pacific Northwest where he made a name for himself.

He is portrayed throughout the book as a highly adaptable individual whose design style closely follows suit. Way notes that Haag’s teachings in the classroom at The University of Washington, where he founded the landscape architecture department, emphasized landscape architecture as not only a profession, but a life perspective. “In the 1960s, the practice of landscape architecture as a civic engagement that addressed growing concern for the environment and cultural practices offered one of the most exciting opportunities in any design field,” Way writes.

Richard Haag teaching "Poetic Response." Drawing by Laurie Olin for the College of Architecture and Urban Planning yearbook, 1960-61 / Washington University Press

Richard Haag teaching “Poetic Response.” Drawing by Laurie Olin for the College of Architecture and Urban Planning yearbook, 1960-61 / University of Washington Press

Though Way states it was not necessarily her intention to celebrate Haag’s work, it is difficult not to celebrate a landscape architect who has made such significant contributions to the field. Of the many projects highlighted in the book – entire chapters are dedicated to Gas Works Park and Bloedel Reserve – some of the Haag’s more fascinating and less recognized contributions are his dedication to the Pacific Northwestern landscape and his use of landform as art.

With his interest and training in Japanese design, Haag was uniquely suited to practice in the Pacific Northwest where there was a Japanese character to both the architecture and landscape architecture. Haag has created hundreds of residential gardens in the Pacific Northwest from Seattle to Vancouver to Portland, Oregon. While these gardens are not only expressive of Pacific Northwestern regionalism, they are also reflective of Haag’s own design intentions. The result is an identity intrinsic to both the landscape and the designer. To say it another way: Haag was inspired by the Pacific Northwest, and the style we now consider pervasive there is undoubtedly Haag-inspired.

As fascinated as Haag was by the idea of public place as democratic space, the art of form-making with earth was of equal importance to him in its ability to shape spatial experience, ecological process, and convey infinite narratives. One of his most dramatic use of land forms before the great mound at Gas Works Park was at Jordan Park in Everett, Washington. Using five thousand cubic yards of sand from the recently dredged marina, Haag experimented with this remove-and-reuse process that he would later refine at Gas Works Park. Though the park was demolished in 2008 with the intention to develop the site for mixed residential use, its memory provides a replicable example of one of Haag’s most iconic design approaches: “One man’s waste is another man’s treasure.”

Richard Haag's Jordan Park in Everett, Washington / Washington University Press

Richard Haag’s Jordan Park in Everett, Washington / Washington University Press

Though his work is not entirely finished, his legacy is already well established. Even at 90, Haag still continues to practice in Seattle, despite Way’s reference to him in the past tense. His work continues to provide an alternative to a profession that often still struggles to move away from its perception as a “luxury-oriented practice of garden design.”

If anything, Haag’s thinking and experimentation related to remediation and reclamation will only become increasingly important to a post-industrial society, making this book, and a deeper consideration of his novel design thinking, a necessity for all landscape architects.

Read the book.

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30 Years of Emerging Voices / Princeton Architectural Press

30 Years of Emerging Voices / Princeton Architectural Press

The Emerging Voices Award was created in 1982 by the Architectural League of New York to showcase the work of early- to mid-career American architects, landscape architects, and urban designers. Each year, through an invited competition, a jury selects practitioners or firms with a “significant body of realized work that represents the best of its kind and has the potential to impact the future of architecture and landscape design.” 30 Years of Emerging Voices: Idea, Form, Resonance, a new book by the Architectural League of New York, documents and assesses the first three decades of the League’s Emerging Voices program, highlighting firms that have been recognized for their innovation, insight, and influence.

Organized chronologically by year of submission and interspersed with essays by leading design critics, this book is a true reference, valuable as a comprehensive snapshot of the past three decades of design. The Emerging Voices award is unique in that it recognizes professionals who are no longer students, but are not yet “fully mature practioners.” As Ashley Shafer, an associate professor of architecture at the Ohio State University, states in the book’s first essay, this career phase often gives way to work that is “idealistic, experimental, and formally clumsy on occasion.” While some of the work in the book may have been “dismissed as hypothetical, utopian, or even naïve,” it’s work we now look at with appreciation.

Take for example Steve Holl’s Bridge of Houses proposal for the then-abandoned High Line in Chelsea, Manhatttan, which was recognized among several of Holl’s other projects with the 1982 Emerging Voices Award. The firm’s proposal for the disused High Line was to construct many different houses over the rail. Each villa is, in itself, a slightly different looking bridge that provides pedestrian passage. While the ambitious project was merely conceptual, it served as a precedent for James Corner Field Operations’ High Line park, which was recognized with the award in 2001 and is also featured in the book. While seemingly unrelated projects, “a host of newly created buildings” engage the High Line as was intended by Holl almost two decades earlier.

Bridge of Houses, New York, NY, proposal, 1979 / Steve Holl Architects via Princeton Architectural Press

Bridge of Houses, New York, NY, proposal, 1979 / Steve Holl Architects via Princeton Architectural Press

The same phenomena is true of Reiser + Umemoto’s 1995 design for Yokohama’s International Port Terminal, which was recognized by the Architectural League of New York in 1996. The complex network structure for the building seemed fantastical and impossible to construct at the time of its conception. However, Jesse Reiser and Nanako Umemoto’s Taipei Pop Music Center, which is arguably just as structurally complex as their design for the International Port Terminal, is currently under construction. While many of their ideas were considered outside the realm of possibility in the mid-late 90’s, Reiser + Umemoto’s designs became not only feasible, but well-received, at the turn of the 21st century.

Taipei Pop Music Center Competition images / Reiser + Umemoto via E-architect

Taipei Pop Music Center Competition images / Reiser + Umemoto via E-architect

While the majority of the book is devoted to architects, several landscape architects are also featured, including Susannah Drake, FASLA, Dlandstudio; Chris Reed, FASLA, Stoss Landscape Urbanism; Elana Brescia, ASLA, and Kate Orff, ASLA, SCAPE; Gary Hilderbrand, FASLA, and Douglas Reed, FASLA, Reed Hilderbrand; Ken Smith, FASLA, Workshop: Ken Smith Landscape Architect; and Julie Bargmann, ASLA, D.I.R.T. Studio.

Bargmann was one of the first, if not the first, landscape architect to be recognized with the award when she won in 2000. While she has since gone on to design many recognizable projects, such as MASS MoCa in North Adams, Massachusetts, and the Urban Outfitters Headquarters in Philadelphia, Pennsylvania, in 2000, she was best known for her work at the Ford River Rouge Plant in Dearborn, Michigan. This regenerative project transformed an industrial icon into a model of twenty-first century sustainability through the use of ambitious ecological systems, creating “a new model of environmentally integrated manufacturing.” Bargmann is a true example of the kind of practitioner the award seeks to recognize — someone who has been a novel thinker from the beginning of her career and has made this innovation a career-long pursuit.

Ford River Rouge / D.I.R.T Studio

Ford River Rouge / D.I.R.T Studio

The most recent landscape architect featured in the book is Susannah Drake, Dlandstudio, who was recognized with the award in 2013. Applauded for her unique voice in projects like BQ Green and Gowanus Canal Sponge Park, both in Brooklyn, New York, Drake has quickly proven that interdisciplinary design is the way of the future. Each of Dlandstudio’s projects emphasizes the integration of ecology, infrastructure, and design at the urban network scale — using the United States’ largest city as a primary testing ground for new ideas in a way few firms have dared to try.

BQ Green: Reviving South Williamsburg / Dlandstudio

BQ Green: Reviving South Williamsburg / Dlandstudio

Focused on firms and individuals who have tested limits and pressed the design profession forward, rather than those who are solely focused on making names for themselves, 30 Years of Emerging Voices is a unique book in its genre, prioritizing innovation over recognition and setting the stage for design breakthroughs to come.

Read the book.

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The Atlantic / Toby Melville, Reuters

The Atlantic / Toby Melville, Reuters

Green Spaces Make Kids Smarter ­– The Atlantic, 6/16/15
“Spending time in nature is correlated with better mental health, attention, and mood in both children and adults. A new study in the Proceedings of the National Academy of Sciences suggests green spaces can boost cognitive outcomes in children.”

How the City Handled the Flooded RiverwalkChicago Magazine, 6/16/15
“The designers in charge of the Riverwalk’s recreational transformation are privy to Chicago’s penchant for flash floods. Landscape architect Gina Ford said last October that the city’s unpredictable weather played a significant role in her team’s design.”

New Queens Quay a Redesign for Everyone The Toronto Star, 6/21/15
“Perhaps for the first time, the city has built a thoroughfare for everyone. That means pedestrians, cyclists, skate boarders, roller bladers, babies in strollers, transit passengers, wheelchair users and, yes, drivers.”

Experience on the Water The Architect’s Newspaper, 6/23/15
“Crowned by an inverted pyramid structure, the Pier of St. Petersburg, Florida, leads visitors on a long and narrow journey to the end and back. However, as it stands now, it stops short of providing much value outside of that.”

A New Playground in the Bronx Soaks Up the City’s Problematic Storm WaterThe New York Times, 6/24/15
“The $1 million playground renovation was undertaken by the Trust for Public Land, a national conservation group, and the city’s Department of Environmental Protection, as part of a partnership to turn 40 asphalt-covered play spaces across the city into weapons against water pollution.”

Review: In ‘A Little Chaos,’ a Guileless Kate Winslet Offsets a Lavish Versailles – The New York Times, 6/25/15
“Into this jungle of obscene privilege arrives Sabine De Barra (Kate Winslet), a sturdy, guileless everyday woman chosen by the king’s chief landscape architect, André Le Notre (Matthias Schoenaerts), to design the Rockwork Grove, an outdoor arena-like ballroom of tiered steps through which water gushes as an unseen orchestra plays behind the shrubbery.”

A Landscape Architect’s Bridge to New Ideas – The Wall Street Journal, 6/30/15
“As president of the international landscape architecture firm EDSA, Doug Smith has worked in destinations as exotic as Egypt and as local as his home state of Florida.”

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Mia Lehrer, FASLA, advocates for Silverlake Reservoir / Mia Lehrer Associates

We work in a small, but timely profession. Our potential to impact the neighborhoods, communities, and cities where we work is huge. Though landscape architecture professionals make up just a small fraction of the design field, ours is the work that is the first to be seen. Ours is the work that brings function and beauty to parks, plazas, campuses, institutions, and transportation corridors. Ours is a profession that blends the power of design with ecological principals and environmental justice. And because we are few and far between, we have to advocate for what we know.

The responsibility is on us to make our voices heard, not for our own betterment, but for the sake of our communities.

Public awareness is growing around a range of big issues, from humanity’s need for nature to improve our health, to watersheds, drought, and climate change. And yet, those in our profession most able to speak intelligently on these issues, to guide our communities towards thoughtful solutions, remain silent too often.

Those who fill the void may be knowledgeable in some respects, but often they simply have a good sound bite. The media won’t know to ask a landscape architect for a solution, suggestion, or comment if they don’t know what landscape architects can do. And most of them don’t.

We need to educate our media, politicians, and the public on the issues we care most about. In addition to keeping each other informed about lessons learned from the field, landscape architects need to write letters to the editor, speak at city council meetings and land-use committee meetings, and join non-profit boards and advisory groups. We need to present ideas to civic groups, garden clubs, and parent groups. And we’re not talking about advocating for the profession: we’re talking about advocating for our quality of life.

We urge you to:

  • Advocate for regionally and micro climate-appropriate design that minimizes resource use while maximizing benefits;
  • Speak out to conserve existing habitat and create new parks, wildlife habitats, and greenway corridors;
  • Call for nature playgrounds and natural systems in our schools, parks, and institutions to increase human access to nature and its physical, mental, and educational benefits;
  • Ask for more flexible policies to support rainwater capture, graywater reuse, and recycled water use and reduce unnecessary use of potable water;
  • Fight to ban plastic materials, such as bags, bottles, furnishings, and grass, to stop the incessant addition of toxins into our oceans and food chain;
  • Advocate for more transit and pedestrian and bicycle options and mixing land uses to cut our need for automobiles;
  • Specify local, non-toxic, reclaimed, and reclaimable natural materials;
  • Educate the public about the need to design with plants that provide food for pollinators and people.

Our firm is widely known in Los Angeles, and beyond, for being vocal. We go to public meetings about water conservation, school sites, citizen science, agriculture, forests, and the Los Angeles River. We go to lectures about climate change, drought, food deserts, park poverty, water quality, and environmental justice. We listen, form opinions, speak and write. We get our voices heard.

We might annoy you. And that’s okay. Because we believe we can make a difference in where we live and how we live to make a better future for all of us. And we hope you do, too.

This guest op-ed is by Mia Lehrer + Associates, an internationally-known, award-winning firm made up of landscape architects, urban designers, environmental planners, and a team of multidisciplinary designers based in Los Angeles. Read their recent op-ed in The Los Angeles Times.

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ravines

The ravines of Toronto / The Toronto Region and Conservation Authority

The Cultural Landscape Foundation’s (TCLF) Leading with Landscape symposium offered a deep examination of the landscape of Toronto, which was described as a complex ecological system. The presence of Toronto mayor John Tory at the conference showed the importance local policymakers place on the landscape architecture community in shaping the future of this city, the fourth largest in North America. Mayor Tory spoke of balancing growth with social and environmental responsibilities, and the integral role landscape architects play in creating a sustainable city.

The first of TCLF’s Modernism symposiums in Chicago sought to define contemporary landscape architecture by looking at its historical context. The second conference at the Museum of Modern Art (MoMA) in New York City championed landscape architectural practices that challenge rigid Modernist idioms through systems-based approaches, which cities increasingly need to deal with today’s complex environmental and social challenges. And the third installment, Leading with Landscape, called for responsive urban design based in a “landscape first” approach.

The day-long conference focused the conversation on how cities — with Toronto serving as the host city and model — are created and sustained through landscape. The term landscape here refers to interconnected natural systems (geologic, hydrologic, botanical and zoological); the many interventions and manipulations of land by humans — from indigenous people to contemporary landscape architects, planners, and engineers; and the resulting street grid and consequent structures.

Landscape architects explored aspects of Toronto’s history before delving into specific contemporary projects. Here, landscape architects explain the forces that have shaped the landscape of Toronto, the cultural and ecological context:

Charles Birnbaum, FASLA, founder of TCLF and organizer of the conference, presented a chronological overview of the cultural landscape of Toronto, with specific examples from Allan Gardens to the post-Modernism of Yorkville Park. Birnbaum made a passionate argument for growing Toronto from its historic fabric. He spoke of the importance of context and narrative in the creation of authentic, resilient places, which can then generate the cultural and financial investments needed for a vital urban environment.

yorkville

Yorkville park, Toronto / Landscape Voice

Landscape architect Janet Rosenberg, FASLA, founding principal, Janet Rosenberg & Studio, and Michael McClellan, principal at ERA Architects, introduced some motifs that recurred throughout the conference: the idea of a multi-verse Toronto with many socio-economic layers that exist side by side, like the suburban high-rises next to the waterfront reality; and the major role of the city’s ravines, which structure the city’s hydrology.

The ecological and cultural contexts that have shaped Toronto were further related by Nina-Marie Lister, Hon. ASLA, associate professor, school of urban + regional planning, Ryerson University. Lister showed the transformation of the city’s landscape by geologic, hydrologic and human forces, and how the expansion and the demand for economic productivity eroded critical ecological services. In 1954, Hurricane Hazel led to devastating flooding in the city, which began a movement towards a hybrid-design approach that engages development alongside a deeper consideration of natural systems.

Brendan Stewart, ASLA, landscape architect and urban designer, ERA Architects, used early city maps to show the lot plans – Toronto’s original organizing grid — and the many subsequent layers and sub-divisions that occurred over two hundred years, which all eschewed the complexities of the existing ecosystem.

Stewart also explained the role of landscape architects in the development of the city — André Parmentier’s geometries at Queen’s Park and the University Avenue landscape being enduring examples. Like Lister, Stewart noted the increased awareness of Toronto’s natural systems following Hurricane Hazel, and the subsequent shift in the goals of the parks and recreation department. Today, the department is not only focused on providing spaces for recreation for residents, but also designing a park system that can provide a hydrologic structure to protect the city.

queens-park

Queen’s Park, Toronto / Chuck Man Toronto Nostalgia Blog

Concluding the discussion of Toronto’s ecological and cultural context, Jane Wolff, associate professor, University of Toronto, presented a short history of coupled built and natural systems in Toronto, equal parts accident and intention. An example of this interplay is the bluff condition of the city that has “fed” the archipelago just off the shore of the city; the islands that formed are now an integral part of the cultural and ecologic fabric of Toronto. Another example, the Tommy Thompson Park – a spit created by the engineered redirection of the Don River – has become a flourishing ecosystem that now provides a stop for birds along their yearly migration.

Read part 2.

This guest post is by Tim Popa, Communications Director, Nelson Byrd Woltz Landscape Architecture.

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The 606 / The Chicago Tribune

The 606 / The Chicago Tribune

Sunrise Makes Way for Massive Mixed-Use Metropica Curbed, 6/1/15
“Sunrise’s Metropica is one of the new goliaths of development projects coming to South Florida. Architect Chad Oppenheim, landscape architecture firm EDSA, interior design firm Yoo Studio, and architectural design firm CI Design are collaborating to build a city-within-a-suburb.”

Chicago’s New 606 Trail a Boon for Open Space, Neighborhoods It Links The Chicago Tribune, 6/2/15
“The 606, which takes its name from Chicago’s ZIP code prefix and whose centerpiece is a 2.7-mile recreational and cultural trail, is a bold and potentially brilliant reinvention of a dormant and derelict elevated freight line that blighted Northwest Side neighborhoods such as Bucktown and Logan Square.”

Frick Museum Abandons Contested Renovation Plan The New York Times, 6/3/15
“Facing a groundswell of opposition to a proposed renovation that would have eliminated a gated garden to make way for a six-story addition, the museum — long admired for its intimate scale — has decided to abandon those plans and start over from scratch.”

Parks for All? The Architect’s Newspaper, 6/8/15
“Chicago’s new linear park and bike corridor, The 606, opens in June. It is hotly anticipated for its potential to transform several West Side neighborhoods, but community groups have questioned who benefits from that transformation.”

Urban, Yet Green The Bangkok Post, 6/8/15
As of last month people are able to go to Siam Square for something new: growing rice and vegetables on the rooftop of shopping complex Siam Square One.”

Grand Rapids Debuts Serene Japanese Garden Featuring Sculpture, Tea The Japan Times, 6/12/15
“Frederik Meijer Gardens & Sculpture Park in Grand Rapids is opening its $22 million Japanese garden after years of construction, offering a place for tranquility and contemplation that integrates contemporary sculpture with trees and plants.”

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PennypackerCovers-FinalFront

Artful Rainwater Design / Island Press

As our climate becomes more unpredictable, finding better ways to manage stormwater is crucial to reducing floods. However, traditional stormwater management strategies can be unforgettable at best and unsightly at worst. In the new book, Artful Rainwater Design: Creative Ways to Manage Stormwater, Pennsylvania State University professors Stuart Echols, ASLA, and Eliza Pennypacker, ASLA, prove that this doesn’t always have to be the case — it’s possible to effectively manage runoff without sacrificing aesthetics.

In this well-organized how-to guide for designers, Echols and Pennypacker highlight the benefits of Artful Rainwater Design (ARD), a term coined by Echols in 2005 to describe rainwater collection systems that are not only functional, but also attractive and engaging. These systems are usually designed to handle small rain events and the initial — and dirtiest — events, rather than major flooding from large storms. Given these smaller rain events of up to 1-½ inches typically account for 60-90 percent of all precipitation, the authors advocate ARD as “the new normal of runoff management.”

Beginning with a history of traditional approaches, then transitioning to the landscape amenity and utility values provided by ARDs, and, finally, concluding with 20 case studies, the book makes a convincing argument for ARDs as a stormwater management strategy. Echols’ and Pennypacker’s most compelling assertion is that creative, attention-grabbing stormwater management techniques do more than simply add aesthetic value to a landscape — they also serve as a reminder that rainwater is a valuable resource that feeds plant life and replenishes terrestrial water sources. In this way, ARDs can be used to “advance the agenda of environmentally-responsible design by making systems not only visible and legible, but beautiful.”

While some sections of the book may appear redundant with existing stormwater management guides, the book is an inspiring catalog of successful ARDs. Echols and Pennypacker first consider existing ARD projects for their general landscape amenities — a difference from existing resources that typically consider stormwater strictly as a problem in need of solving. The authors list the amenities of many public ARDs, such as education, recreation, safety, public relations, and aesthetic richness, and they offer several examples.

Among the more innovative projects highlighted in this section is the new Queens Botanical Garden Visitor Center in Flushing, New York, by Atelier Dreiseitl with Conservation Design Forum and BKSK Architects, which provides opportunities for people “to splash, float objects, or just watch the water.”

queensbotanic2

Queens Botanical Garden / Stuart Echols, courtesy of Island Press

But are these amenity-providing ARDs as effective at managing stormwater as traditional methods? When considered as a starting point for site design, Echols and Pennypacker argue that ARDs can actually accomplish much more than existing strategies. They can reduce pollutant loads in rainwater, restore or create habitat, and capture water for reuse, among other benefits.

Standout projects in this section include the Beckoning Cistern by artist Buster Simpson. This project refers to Michelangelo’s painting of God’s life-giving touch as it Adam’s outstretched finger — but in this case, roof runoff is the life source and is collected into a container.

beckoningcistern

The Beckoning Cistern / Stuart Echols, courtesy of Island Press

Most landscape architects will likely agree with Echols and Pennypacker’s arguments in favor of ARDs. As Warren Byrd, FASLA, of Nelson Byrd Woltz, asks in the first chapter: “Why wouldn’t we use ARDs?” But the question remains: Why aren’t ARD systems more widely implemented?

Many designers see ARDs as too expensive, too difficult to get through the approval process, or, more often than not, not appropriate for their geographical area. While about half of the designs featured in the book are located in Seattle, Washington, and Portland, Oregon, the authors urge readers not to consider these examples as “’out there’ and irrelevant to their own contexts” — these cities were simply ahead of the curve. As Steve Law from the Portland Tribune writes, “across the nation more than 700 cities have combined sewer overflow problems, largely communities that developed a century or more ago, like much of Portland.”

Echols and Pennypacker also assuage fears over the time and energy that can go into maintaining ARDs, offering several solutions, such as using edging to differentiate between landscapes that demand weekly maintenance (mowed lawn) from those that demand monthly maintenance (rain gardens). This strategy was successfully employed at the Oregon Convention Center, one of the featured case studies, which was designed by landscape architecture firm Mayer/Reed.

orgeonconvention

The Rain Garden at Oregon Convention Center / Stuart Echols, courtesy of Island Press

Echols and Pennypacker are honest about the many challenges ARDs pose at this point in the history of sustainable design. However, at a time when doing nothing to manage rainwater is simply not an option, their book instills hope that the days of drab detention ponds may soon be coming to an end, ushering in a new era of rain-celebrating landscapes.

Read the book.

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central-park

Central Park, New York City / Drive the District

There has been a boom in studies demonstrating the health benefits of spending time in nature, or even just looking at nature. But a group of ambitious landscape architects and psychologists are actually trying to determine how to prescribe a “nature pill.” The big remaining questions are: What dose of nature exposure is needed to achieve maximum mental and physical health benefits (how long and how frequently)? And what form of nature works best? In a talk at the Environmental Design Research Association (EDRA) conference in Los Angeles, MaryCarol Hunter, ASLA, a landscape architect and ecologist at the University of Michigan, described her efforts to create the guidelines for landscape designs that can lead to the greatest impact.

Hunter and her team examined 44 people over 8 weeks. She asked them to go out and immerse themselves in urban natural environments at least 2.5 times per week for a minimum of 10 minutes. Using a custom-designed smartphone app, these people walked or sat in nature and then answered questions about their mental well-being, both before being exposed to nature and then after. They were asked to record the types of landscapes they saw, the weather, and then take photographs of their preferred views, “scenes they were drawn to, that gave them that ‘ahhhh’ feeling.” As the walked and recorded their thoughts, the app also tracked their location.

The early results show that the “nature pill works.” Among all participants, they reported significantly less stress, an increased ability to focus, and increased satisfaction with their mood and energy levels after being exposed to nature. But Hunter admitted that “self-reported data is viewed as worthless; people want physical proof,” so before and after the nature exposure, they also studied participants’ cortisol levels, a physical indicator of stress, which correlated with the self-reported responses more than 60 percent of the time. She said this shows the data is largely credible.

Hunter said it’s still too soon to tell what the optimal dose of the nature pill is, but even just “10 minutes is effective.” While the data is still being analyzed, Hunter and her colleagues also found that “there was no correlation between weather and the restorative effects.” There were greater restorative effects in residential landscapes or small parks. In fact, the benefits seemed to be greater in “small, enclosed spaces,” but this could also be a function of how the participants’ neighborhoods were set-up. It’s not clear whether large parks were actually nearby those studied.

The definition of nature was loose, so, in the next stages of the research, Hunter is trying to define it more specifically. For example, vegetation, hills, rivers, or large bodies of water can all be considered nature, so she began a process of listing all the physical attributes defining the environment to find out which have the most restorative benefits. She categorized the 470 photographs study participants took through the app with 60 attributes, covering factors like naturalness, complexity, structural coherence, form, proportion, openness, access, and engagement. There were some 23 structural attributes, like “horizontal line, skyline, or canyon form,” 13 contextual attributes, and another 30 landscape attributes.

Now that there are a set of photographs with clear attributes, Hunter can begin testing theories. For example, Roger Ulrich, who is perhaps the most celebrated health and nature researcher, posited that symmetries, repeated elements, and focal points helped stress recovery more than other forms. Using the categorized photographs, she can begin to see whether this is true.

Hunter hopes to have her exciting findings ready to present at the ASLA Annual Meeting in Chicago in November. “We are still working on deciphering the nature pill.” Her eventual goal is to create a methodology that can be replicated all over the world, given other cultures have such a different appreciation of nature. “Other researchers can use the procedure but adapt specifics.”

Here are brief summaries of other fascinating health and nature studies at EDRA:

Dongying Li, a landscape architecture PhD student at the University of Illinois at Urbana-Champaign, examined whether exposure to nature for high school students improved their ability to deal with stress. She tracked 150 high school students in Illinois with GPS devices and asked them to keep an active diary each night. Li also collected various mood-related data every day. In her exploration of a new “time/space model,” she found that simply estimating the level of use of green spaces in an area based on proximity to those spaces doesn’t really work. Students with three-hour windows of opportunity who could have accessed green spaces often didn’t in reality. “Potential versus realized exposure can be different.” For Li, the take-home message was “design green spaces that are walking distance. Parks in neighborhoods may not be enough.” William Sullivan, ASLA, professor of landscape architecture at the University of Illinois at Urbana-Champaign, who is doing much of the exciting research on nature and health, added that “nature needs to be at every doorstep. We don’t know where people will wander.”

Jane Buxton, a PhD student in regional planning at University of Massachusetts at Amherst, conducted a novel study to find out whether increased tree canopy influences people’s preferences for urban density. She found that “trees will help people accept density.” Buxton showed 24 photographs, some of which were manipulated to incorporate more trees, to 70 residents of Worcester, Massachusetts, the second largest city in New England, asking them to circle the choices that “best describe where you want to live.” The highest preference was for single-family homes set in a rich tree canopy; the lowest preference was for apartments close to street with a lack of trees. Greening made a difference. In almost all cases, the scores went up as more trees were added. She concluded that “there is a tension between higher density and what people actually want: single-family homes. Trees can ameliorate that tension up to a point.” She also believes that “people will need to chose higher density if it’s going to work. It can’t be seen as something that will be forced on people.”

Pongsakorn “Tum” Suppakitpaisarn, a PhD student in landscape architecture at the University of Illinois at Urbana-Champaign, and Bin Jiang, a professor at the University of Hong Kong, want to figure out if people’s preferred landscapes reduce stress. Preference, as defined, is “spontaneous, aesthetic,” but also about survival. Suppakitpaisarn showed slides of a winding open path in a park versus a dark hallway through a crumbling building, explaining how most everyone will prefer the open path, because it appears less dangerous. There’s a reason for that preference: it’s about survival. Through a set of studies, he stressed people out by asking them do math and perform in a job interview in front of unresponsive, unhelpful people and then asked them to watch nature videos and rank their preferences for the green scenes, which aided in stress recovery. He found that preference predicts stress recovery in women but “we’re not sure about men.” Why should we care? “Stress is expensive to measure, with all the physiological measurement equipment, but preference is easy to measure.”

Sara Hadavi, a research associate at the University of Michigan, looked at various types of green spaces in 3,400 acres of Chicago. Using mail-in surveys and on-the-street-interviews, she got 434 people to respond to her questions about nearby nature and well-being. Hadavi found that “open lawns with trees had a positive effect on well-being, even if they aren’t used. Just knowing that they are there is enough to inspire satisfaction with public spaces, which in turn improves well-being.” She said this kind of information is important for planners and landscape architects who may think the only measure of success for a public space is direct use. But she added if city leaders really want to boost well-being, landscape architects should create spaces where people can socialize and then encourage them to visit through lots of programs. Hadavi called for more widespread use of “user-oriented design, which will have better outcomes than designer-oriented design.”

Eva Silveirinha de Oliveira, a landscape architect and researcher at Open Space in Scotland, is testing out a new environmental audit tool on woodlands. “Urban woodlands are part of green infrastructure systems, but their quality varies. They are not usually managed or maintained in Scotland.” Sending out two trained landscape architects, she completed 18 audits, and found the tool works in helping us to “get a sense of whether a place will attract or repel us.” She said the views of the urban woodlands among the landscape architects and the locals she surveyed who live near them were different though. “Landscape architects recorded much lower ratings than the community.” Like Hadavi, Silveirinha de Oliveira found that people valued nearby nature even if they didn’t use it.

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Los Angeles River in a concrete channel / Climate Resolve

“We can consider rivers as city-making landscapes,” said Thaisa Way, ASLA, professor of landscape architecture at the University of Washington and organizer of a two-day conference on river cities at Dumbarton Oaks in Washington, D.C. “In river cities, rivers are the agents, offering opportunities for food, transportation, and water, but also liabilities, like drought and flooding.” Each river city has a dynamic relationship with its river, so communities that depend on them must always strive to improve their adaptability and resilience. “Rivers can be beneficial or terrifying.” In the era of climate change, river cities, with their often creative responses to a changing environment, offer lessons.

Here are brief summaries of the talks by the few selected to speak at the conference. Way said more than 180 landscape architects, academics, urban planners, and others submitted proposals but just 13 were selected. Way argued this is a sign of the enormous interest in this new field of study. First are stories from the U.S. and then South America, Europe, and South Asia.

Los Angeles, California, and the Los Angeles River: Vittoria Di Palma and Alexander Robinson, ASLA, both professors at University of Southern California, took us on a history tour of the Los Angeles River. It has always been a “small stream that sometimes turns into a raging torrent during ‘rain events.'” After Spanish settlers discovered Los Angeles and then settled there, they plotted out a system of fields separated by inter-connected canals called zanjas. “The city itself was configured by the water supply.” While the San Madre river was seen as the “idealized, perfected river,” its close relative, the Los Angeles River, never seemed able to behave itself, as it was prone to flooding.

As Los Angeles grew and more farmers came, the desire for predictable water led the city government to begin major efforts to control the once-fluid, complex Los Angeles River starting in the early 1910s, and it was soon fully entombed in a concrete channel by the U.S. Army Corps of Engineers (see image above). By the middle of the 20th century, there was nostalgia for the wild river that had been lost, with poets and artists “creating a vision of its rebirth.” But as Di Palma said, “these were idealized visions. People were afraid when it behaved naturally and accepted and loved it when it acted as it should.”

In the 1990s, Los Angelenos began to think about how to add parks to the banks of the still channelized Los Angeles River. In 1997, a new master plan was created out of this vision, and by 2005, landscape architecture firms Mia Lehrer + Associates, Civitas Inc., and Wenk Associates created a revitalization master plan for the city government, exploring the “full potential of the 32-mile-stretch of the river in the city.” The plan included ecological restoration along with flood control strategies, designs for new bicycle and pedestrian infrastructure, along with development opportunities.

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ASLA 2009 Professional Analysis and Planning Honor Award. Los Angeles River Revitalization Master Plan, Los Angeles, California / Mia Lehrer + Associates/ Civitas, Inc./ Wenk Associate

Re-enter the U.S. Army Corps of Engineers, which now has a new mission of ecological restoration and undoing the damage it had done to urban rivers generations before. Following a set of complex studies, featuring an algorithm that examines the per-unit habitat benefits of various ecological restoration approaches, the Corps moved forward with the “alternative 20″ proposal, under great political pressure, including from the White House. That proposal is not the most cost-effective according to the calculations, but it provided what the city government and local non-profits, with their broader urban revitalization goals for the river corridor, more of what they wanted.

The negotiations with the city were complicated. “Congress doesn’t fund the Corps to do urban revitalization. They are not going to pay for a High Line. Everything must support ecological restoration.” The Corps has agreed to work with the city so their effort to restore the river ecology synchs up with the city’s efforts to provide recreation opportunities. But the bottom line is “the Los Angeles River can’t flood again. The compromise is we need to keep people safe and restore the river to health.”

Pittsburgh, Pennsylvania, and the Monongahela and Allegheny Rivers: The Allegheny River comes right into the city, said Ray Gastil, head of planning for Pittsburgh. “It’s not a sacred river.” When Pittsburgh was the heart of steel manufacturing in the U.S. in the early 1900s, the rivers flowing through Pittsburgh were so toxic they were actually poisoning the population. This is because they were not only used as industrial infrastructure but also as a dump for sewage. When 620 died in a typhoid outbreak, the city started to get serious about improving their water quality, which they realized was linked with the health of the river. “Finding the causal links between water and disease took a long time to figure out.”

By the 1920s, the legacy of steel manufacturing was beginning to take its toll. “The city began to realize that the deleterious effects on the air and water were not sustainable.” In 1923, some local organizations began arguing that “the riverfront should be a shared benefit and workers need a place to recreate,” but there was no public space, because the land was just too valuable for industrial use. A plan was created to set aside some parks that were to be publicly owned. From the 1920s to 1950s, the point where the Ohio River meets the city was turned into a park, and then, from the 1970s to the 00s, bike trails came, along with the rise of adaptive reuse projects and a new waterfront tech park. Heinz Field, a huge stadium, was set right on the waterfront, with one side open to the Allegheny. Cut to 2015, and the city is still working on the Three River Parks plan, created in 2001, which has created 13 miles of inter-connected green space and trails and spurred $4 billion in riverfront development, and harks back to early 20th century plans to make the waterfront publicly accessible.

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Allegheny Riverfront Park / Michael Van Valkenburgh Associates

A new master plan by Perkins Eastman will turn a 170-acre post-industrial plot on the Allegheny riverfront into a mixed-use development that will also preserve some of the old steel mills. But for the most part, Pittsburgh’s mill past has been erased. “There are no romantic feelings about their role in the city. Pittsburgh wants to move away from being a city of smoke.”

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Allegheny Riverfront Vision Plan / Perkins Eastman

San Antonio, Texas, and the San Antonio River: David Malda, ASLA, a landscape architect with Gustafson Guthrie Nichol, said San Antonio has long struggled with either an excess or total lack of water. Like a young Los Angeles, early San Antonio had a series of canals, called acequias, that sustainably conveyed water to farmers. By 1910, the acequias were largely replaced by wells, which eventually took their toll on the groundwater. The San Antonio River’s flow was negatively impacted, to the point where the city had to install multiple pumps to move river water into the city. But, also, during heavy storms, the system caused flooding. In 1921, 50 people lost their lives due to flooding along the San Antonio River.

Instead of paving over the river and turning it into a channel for sewage, which many wanted to do, local architect Robert Hugman proposed constructing a cut-off channel, a loop, that people could walk in a circle downtown. In the 1930s, work began in earnest on the 2.5-mile-long San Antonio Riverwalk, which slowly became what it is today over the following decades. “San Antonio invented the idea. They could have a piece of a river without the risk.” Paths, which visitors had to step down to river level to visit, were designed to be intentionally narrow.

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San Antonio Riverwalk / The Flast List

Over the years, the Riverwalk loop itself was expanded, including a naturalistic segment in the 1960s, another segment in the late 80s, and a final one that opened in 2011. Also, additional underground infrastructure that redirects excess water out of the loop was constructed to ensure the Riverwalk would not become a danger during floods.

At the edge of the Riverwalk loop, Gustafson Guthrie Nichol is designing a new civic park downtown, which will revamp a site cleared for the 1968 Hemisfair, a broader urban renewal effort. The new park will refer to the original great plains and coastal plains ecosystems that once characterized this area, and feature a network of acequias that refer to the original system of water infrastructure. Malda made the case for doing deep historical analysis before undertaking a landscape architecture project. “It’s not nostalgic but strategic. We need to understand how the park will fit into the greater pattern. We can then do creative reconstruction from a landscape narrative that draws people and places through time.”

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Civic park at the Hemisfair / Gustafson Guthrie Nichol

In South America: São Paulo, Brazil, and River Headwaters: Cornell University landscape architecture professors Brian Davis and Amelia Jensen argue that rivers form a new borderland within the Brazilian mega-city São Paulo, which is on a high plateau that also serves as the headwaters for multiple rivers. As the city expanded and the population moved down from flood-proof hills, more communities took root along riverbanks. Rivers have been largely channelized, as the goal has been to move flooding water through the city as fast as possible.

But that approach had failed, so the state government created a set of piscinão, large water detention basins that are meant to “act as a solution for flooding.” While the state built these piscinão, it’s not clear who maintains them. Today, there are “jurisdictional ambiguities” at the borders where city and rivers meet. Many piscinão are filled with sewage and trash, and have become major sources of complaints by those unfortunate enough to live near them. A few have been well-tended by the local communities, planted with trees, so they form multi-use community infrastructure: parks when rivers run low, and detention basins during severe rain events.

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Piscinão Guarau, Sao Paulo / Encalso

In Europe: the Lyon, France, and the Rhône and Saône Rivers: These two rivers converge forming a peninsula in the heart of this 2,000-year-old metropolis, explained Michael Miller, a historian at the University of Miami. This makes for city with “two left banks and two right banks.” It also makes Lyon a true river city. “It’s ‘riverness’ is connected with the city.” Miller explained how the city has since its days as a Roman center in Gaul wrapped itself around the rivers. However, over time the confluence has changed. “Islands were joined together to form the peninsula, extending the size of the city. This was done for beauty and function.” Trees line river-facing promenades, even those prone to flooding.

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Lyon, France in 1860. Adolphe Rouargue – Archiv “Deutschland und die Welt” / Wikipedia

In South Asia: Allahabad, India, and the Yamana and Ganges Rivers: In Uttar Pradesh, India, the Hindu mecca Allahabad is a source of fascination for Columbia University architectural historian Anthony Acciavatti, author of Ganges Water Machine. Allahabad, which sits at the meeting points of the Ganges and Yamana Rivers, is always responding to seasonal change; it’s a “dynamic agropolis,” an agricultural economy deeply dependent on the monsoon and the shape-shifting rivers as they shrink and flood. Acciavatti has been mapping the fluvial changes over a decade, documenting the soft edges of the rivers with GPS and panoramic photos and creating handsome maps out of his data.

He is also tracking the shift from centralized water management to a decentralized one involving small tube wells that pull straight from groundwater, and the impact of this on the form of the city. He eventually wants to create a sort of hybrid atlas and almanac, a “dynamic atlas that would explain how the conditions of people, weather, and infrastructure interact, and how this interaction changes.”

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Ganges River Machine / ArchDaily


Shahjahanabad, India, and the Yamana River
: Jyoti Pandey Sharma, a professor of architecture at Deenbandhu Chhotu Ram University of Science and Technology, explained how “Agra wasn’t cutting it” for Mughal Emperor Shahjahan in the 17th century, so he moved his capital down river, creating Shahjahanabad, in the Delhi Triangle. Shahjahanabad became the “seat of sovereignty and the caliphate; it was the epicenter of supreme power and religion.” In this city, the Qila was the embodiment of imperial authority. It was the “celestial ruler’s landscape,” with elaborate architecture set in prescribed formations, while just outside, the river was wild. Access to the city’s riverfront was largely democratic, but in front of the Qila, it was restricted. The river, at least symbolically, was tamed to serve the needs of the emperor. Water from the Yamana River flowed into a series of canals brought into the capital. River water provided “thermal comfort, and visual, tactile, and auditory pleasure.”

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Shahjanahabad / Kamit.jp

By the time the British took over in the 1800s, the perception of the river changed. It became “an agent of discord” and a source of malaria. Shahjahanabad was no longer a picturesque river city. Today, the Yamana is a river of “human filth and pollution.”

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Brightwater / Jared Green

Imagine a wastewater treatment facility where people get married, amid 40-acres of restored salmon habitat with designed ponds and wetlands. It sounds far-fetched but it’s reality in Snohomish County, Washington, near the border with King County, about an hour northeast from downtown Seattle. In a tour of the Brightwater facility during the American Planning Association (APA) conference by Michael Popiwny, the landscape architect who managed this $1 billion project for the King County government, we learn how wastewater treatment plants can become assets instead of drains on communities and the environment. The key to success was an interdisciplinary management, design, and construction team that was highly responsive to community feedback and deeply sensitive to environmental concerns. Plus, Brightwater was paid for by growth in the region. As new people are attracted to the quality of life the Seattle area offers, they move in and pay a $4,000 – $8,000 sewer hook-up fee. “The fact that new people were paying for the system helped us to sell it to the community.”

Brightwater, a 15-year endeavor that began operations in 2011, is a wastewater treatment facility, environmental education and community center, and ecological system rolled into one. It’s a 114-acre site, nestled in a wealthy residential area, with some 70 acres of trails and parks open to the public. There are 13 miles of underground conveyance pipes that direct wastewater to the plant. When it reaches the plant, the wastewater is cleaned through the largest membrane bioreactor system in North America, which makes the water 70 percent cleaner than conventional approaches. It is then sent out through a 600-foot-deep outfall pipe a mile out into the Puget sound. Excess materials are turned into “loop,” a biosolid that is sold to local farms and orchards at very low cost.

However, this description of the system doesn’t do justice the experience of being at Brightwater. Popiwny explained the critical role excellent design played in “selling this place to the community.” He said, “we realized that this place needed to be beautiful. We need it to be very well designed.” Just siting the project won King and Snohomish counties, along with CHM2Hill and Environmental Design Associates, an ASLA 2005 Professional Analysis and Planning award. Then, engineers with CHM2Hill and landscape architects with Hargreaves Associates and Mithun along with restoration ecologists and conservation biologists came together in an interdisciplinary design team to create a welcoming place that actually restored the ecological function of the landscape, turning into a place that aids salmon in their annual migration.

Popiwny briefly described the design and construction process: “We had separate contracts for the engineering and design teams. We needed the strongest engineering team and the strongest landscape architecture team. The teams completed their work separately and then we combined their efforts in the final design. Internally, we had an engineer lead the engineering team, and I led the design team. It’s important that you set up competitions for top notch talent in each category and then give them equal status.”

As the deep processing facilities were dug out of the landscape, the excess soil was turned into “decorative, geometric landforms,” by Hargreaves Associates. “These landforms alone took thousands of trucks off the highway, saved lots of carbon,” explained Popiwny.

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On the way to the North 40 acres, Brightwater / Jared Green

Amid these landforms in the “north 40 acres” is an elaborate system of forests, meadows, raingardens, wetlands, and ponds that hold and clean rainwater before directing it to the streams salmon use. What was once an auto depot is now a place that provides great environmental benefits.

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Restored forested habitat / Jared Green

The process of restoring the habitat and turning into a publicly-accessible park was complex, involving stream and wetland biologists, who guided ecological decisions, and landscape architects with Hargreaves. The team used 15 different types of rocks to create two different stream corridors that empty into ponds where salmon rest on their uphill climb to the places where they spawn. “The result is something similar to the original stream.”

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Restored stream / Jared Green

To restore the forested wetland, the Brightwater team made it an environmental education and community outreach project. Kids from the area helped plant over 20,000 native willows. “Native willows are easy for children to plant. We had about 4-6 busloads of kids from the surrounding area per week.” This effort really helped create community buy-in and grow a sense of greater investment in the success of the project.

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Forested wetland / Jared Green

As you walk out of the park and into the environmental education center, which was designed and built to a LEED Platinum level, you can see how an open-minded couple would actually want to host a wedding here. Popiwny laughed and said one comment he read about the onsite wedding online was, “it’s today — get with it!” There are pleasing views of the green infrastructure. One of the larger buildings is also a frequent host for local non-profits and community meetings.

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Environmental education center / Jared Green

All of this is a result of efforts to stave off protracted lawsuits that would have delayed the project from the beginning. The parkland, environmental education and community centers, were all part of the $149 million set aside as part of the “mitigation budget.” According to Popiwny, “budgeting this kind of work upfront meant saving money over the long run.” However, the Brightwater project was still sued by local sewer districts who argued that the project “spent too much on mitigation.” The state supreme court eventually sided with Brightwater. Popiwny said “lawsuits are an inevitable part of large projects.”

Now the challenges to projects like Brightwater are “often in the guise of environmental protection.” But Popiwny just sees this as part of the broader system of checks in a democratic system. “There needs to be multiple checks as these projects can affect communities. The region benefited from the opposition to the project as it pushed us towards a higher performance, but it also made it more expensive.” The Brightwater team included other forms of technical fail-safe systems, like multiple, isolated ponds to separate acid or bases if there was an overflow or accident caused by an earthquake, and engineering all pipes and systems to withstand high levels of seismic activity.

As we walk out of the environmental education center, which features flexible classrooms for groups of all ages and enables a range of hands-on learning about the water cycle, we head to the facility itself, which is strangely odorless. “There are three levels of odor control.”

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Brightwater wastewater treatment plant / Jared Green

Spread throughout the site is public art, as the project was part of the state’s 1 percent for art program. Climbing up a stairwell to the spot where the millions of gallons of cleaned water is sent out to the sound, there is artist Jane Tsong’s poem, which actively blesses the elements of the plant (air, water, biosolids) as “they depart from the treatment process and continue their life cycle into the natural world.”

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Poems by Jane Tsong / Jared Green

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Poems by Jane Tsong / Jared Green

Popiwny said the facility staff particularly connect with these poems, as it is reminder of how meaningful their work really is.

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