Blog » Category: Habitat

The World’s Greenest Parking Lot?

Posted April 8th, 2011 by Brice Maryman

When students arrive on Olympic College’s campus, their education will begin in the most unlikely of place: the parking lot. Working with Schacht|Aslani Architects, SvR’s reconfiguration of this 260-stall space makes innovative stormwater management an integral part of the campus experience and a primary function of the parking area. With new swales, raingardens, and porous pavements, the parking lot reveals how natural processes can clean polluted runoff before it enters Puget Sound. The project is the first large investment in the campus following the completion of the College’s new Campus Master Plan in 2007.

Technical Performance

Knowing that the soils under the parking lot would allow for localized infiltration, SvR devised a strategy of distributed, small-scale attenuation opportunities. Our first tactic discouraged large volumes of water from accumulating in concentrated areas by incorporating porous pavements and cascading rain gardens throughout the site. Our team designed the system to infiltrate 100% of the water quality storm and the majority of the high-intensity storms, significantly exceeding code requirements. The project was also about creating a safer environment for students traveling from the parking lot to the campus core. Providing pedestrian-prioritization, we reduced the width of Broadway Avenue by six feet at two locations, connected to and improved existing bus stops, added LED lighting and created wide, raised crosswalks. ADA travel is also provided throughout the parking lot, and we have accommodated electric vehicle charging stations.

Design Performance

Through the designed landscape, we employed a variety of plantings to create buffers and provide screening of undesirable views. Since the relationship to the natural environment was so critical for the pedagogical program for the site, we opted for a design that prioritized a diversity of native, drought-tolerant plantings, particularly in the raingardens and swales. Our key challenge was to carefully site a wildlife-friendly palette of native plants that could withstand a variety of stormwater inundation regimes and adhere to CPTED (Crime Prevention Through Environmental Design) principles at the edge of the site. The final design uses primarily native wetland plant materials in areas that will be seasonally flooded, while upland varieties of broadleaf evergreen and deciduous plantings provide year-round seasonal interest, anchoring the drier, higher elevation areas.

Sustainable Sites (SITES™)

The Sustainable Sites Initiative™ (SITES™) selected the Olympic College Parking Lot as one of the 150 sites around the world to act as a case study in the program’s pilot phase, which will test and refine the SITES™ rating system for sustainable landscapes. As part of this evaluation, SvR will document the certification prerequisites and credits and compiled feedback for the SITES staff to inform the final rating system, which will be released in 2013. http://www.svrdesign.com/olympic_college.html

High Point Landscape Maintenance Guidelines Updated

Posted September 11th, 2010 by Justin Martin

After designing the natural drainage systems and other landscape enhancements along the street corridors in Seattle’s High Point community, the Seattle Housing Authority asked us to provide a  year-round maintenance manual to assist the landscape and open space management team with keeping the green infrastructure systems working optimally. As we’ve noted before, often times concerns about maintenance can be a barrier for developers who want to implement green infrastructure solutions like additional plants, amended soils and porous pavements, so these types of maintenance manuals can be critically important to getting  assurance that the landscape can be cared for over time.

As with any green infrastructure approach, the public landscape at High Point is not simply an aesthetic amenity for the families living there; it also plays an functional role, particularly as an integral part of the site’s stormwater management strategy. As families with young kids have taken up residence and as the salmon continue to swim up Longfellow Creek, an early decision to use  only natural landscape maintenance techniques that do not rely on strong and potentially harmful chemicals has been reinforced in our minds.

The High Point maintenance guidelines address various landscape issues, such as natural solutions for reducing clover in the lawn areas

High Point’s  maintenance guidelines detail methods and approaches to keep the landscape and natural drainage systems healthy, safe, and functional using natural and environmentally-friendly products and techniques. The guidelines also identify general irrigation scheduling for newly installed, renovated and maturing landscapes in addition to irrigation maintenance and troubleshooting techniques.

Based on our own observations, as well as invaluable feedback from Jeanette Fournier and Zach Chupa of CDC Management Services, the community’s maintenance and management company, we have recently completed the second update to the High Point Community Natural Drainage and Landscape Maintenance Guidelines. This new version of the maintenance manual provides additional information and details on cleaning of porous pavements updates resources and web links on non-toxic fertilizers and pest control products, and includes new details pertinent to maintenance practices in the fall.  New maps and diagrams have been added that show locations of primary irrigation components including controllers, quick couplers, and circuit zones as well as priority clearing areas for when leaves drop and seasonal wet weather conditions return in the fall.

On Landscape Performance

Posted August 26th, 2010 by Brice Maryman

The Landscape Architecture Foundation just released the first two segments in it’s new Conversations with Leaders in Landscape to help inaugurate it’s Landscape Performance Series. The Foundation says, “The videos are part of a six-part series that features 20 distinguished leaders in the profession discussing landscape performance and sustainability.”

Enjoy this first one featuring our own Nate Cormier discussing landscape systems performance:

LPS #2: What is Landscape Performance? from LandscapeArchitecture Foundation on Vimeo.

Urban Stormwater Runoff 101

Posted August 25th, 2010 by Brice Maryman

In our project work, we often find ourselves helping to educate policymakers and code officers about why urban stormwater runoff is such a critical issue for sustainability. Particularly here in the Puget Sound region, what we build and how we build it has profound impacts on our overall sustainability.

Well, Kaid Benfield may have just saved us a bit of time (and our clients a bit of money). Over at his blog he highlights a short movie that his colleagues at NRDC produced regarding stormwater runoff. It is well worth your three minutes.

The Justice Center Green Roof – 8 Years Later

Posted August 3rd, 2010 by Lisa Town

At the Justice Center Roof for the Seattle Green Roof Tour - July 30, 2010

At the Justice Center Roof for the Seattle Green Roof Tour - July 30, 2010

Last Friday, Seattle Public Utilities and the Department of Planning and Development led a green roof tour that hit five roofs within the city spanning from the downtown core to the Seattle Center. The first stop on the tour was one that we had worked on almost a decade ago: the Justice Center Green Roof where our own Melanie Davies spoke to the group about the project in conjunction with Peter Jeu who has provided the maintenance for the roof since the system was installed and planted in the fall of 2002.

Melanie Davis, center in the jacket, at the Justice Center Green Roof during the Seattle Green Roof Tour

Melanie Davis, center in the jacket, at the Justice Center Green Roof during the Seattle Green Roof Tour

The support system is from American Hydrotech and consists of a 6″ profile including insulation, an “egg crate” style drainage/moisture retention layer and a custom soil mix over a multi-layered waterproofing membrane. The planting design by SvR was guided by an image of sunlight reflected in a shallow streambed, much like that of the water feature connecting the Justice Center with the City Hall. The pattern shows through in wavy swaths of greens, blues, and grays.

The Justice Center Green Roof - the length of the vegetated area

The Justice Center Green Roof - the length of the vegetated area

Justice Center Green Roof - planting close up

Justice Center Green Roof - planting close up

Another View of the Justice Center's Green Roof

All images copyright SvR Design Company 2010.

A “Race to the Top” for Sustainable Communities

Posted July 22nd, 2010 by Brice Maryman

The Partnership for Sustainable Communities Dialogue

The University of Washington’s Runstad Center recently hosted a day-long event called the Partnership for Sustainable Communities Dialogue Session. The purpose, as was related to the 100 plus participants from the private sector, non-profits and governments, was to hear from interested partners about how to shape and inform the federal Partnership for Sustainable Communities, which was recently announced as a partnership between the United States Department of Transportation, the Environmental Protection Agency and the Department of Housing and Urban Development.

After a day of dialogue, one of the most exciting tendrils of thought was the opportunity to use the carrot of federal funding to shift the regulatory/financial/governmental landscape across the country toward the principles that the smart growth and sustainability movements have been advocating for decades. The opportunity here is more than simply another federal grant. If deployed strategically, the work of the Partnership for Sustainable Communities could represent the tipping point in sustainable land use and transportation, much the way that the National Interstate and Defense Highways Act of 1956 was the tipping point that locked us into the land use and transportation patterns that we see today.

One need only look to Race to the Top funds from the United States Department of Education to see a successful example of how federal funding incentivizes significant, lasting legislative fixes to problems that would have been deemed intractable as little as a year ago.

For those unfamiliar with the Race to the Top program, The New York Times recently wrote a compelling article documenting the effect that it has had on the education system across the United States. They note:

“[Race to the Top] has turned a relatively modest federal program (the $4.3 billion budget represents less than 1 percent of all federal, state and local education spending) into high-yield leverage that could end up overshadowing health care reform in its impact…”

Across the country, enlightened self-interest drove unions to work with state legislatures. Democratic legislators who were reluctant to support charter schools were suddenly supportive, and teacher and principal accountability became a pre-requisite to even having a chance at receiving federal funding. In a highly-politicized Washington, DC, Obama administration officials even earned this accolade from the other side of the aisle:

“That President Obama did [education reform] is a total game changer,” says [Paul] Pastorek, the Louisiana schools superintendent, who is a Republican working for a Republican governor, Bobby Jindal. “If he really sticks to this, education will never be the same.”

The Sustainable Communities Partnership can be the same type of defining moment for re-shaping the built environment. Already, Secretary Donovan has announced that, “HUD will be using location-efficiency to score our grant applications.” But the grants are an opportunity to leverage even better returns from local and state governments.

To illustrate the point, let’s play an exercise of, “What if?”

What if to be competitive for federal Sustainable Communities funding, any state would need to:

  • have mode-neutral transportation funding (might Washington state’s gas tax be used for walking, biking and transit?);
  • require green stormwater infrastructure/low impact development for stormwater management;
  • have a state-level Complete Streets ordinance;
  • create a transfer of development rights market;
  • remove parking requirements;
  • include green house gas emissions forecasts in all projects;

If these were the requirements to effectively compete with other states for federal funds, what existing, rutted conversations could be overcome? What state-level legislative actions might such funding requirements encourage? The possibilities are, seemingly, endless. Let’s hope we use the opportunity wisely.

Zofnass = Sustainable Infrastructure? And Other Observations

Posted May 26th, 2010 by Tom von Schrader

Zofnass… I confess I had not heard of it, but then again some times you learn a thing or two from a conference. Recently, I came off of a tour of local and national conferences that took me from coast to coast and then to the heartland. Exhausting as that was, I came back with a renewed sense of purpose and several movements I thought I might share.

Boston, MA – Zofnass-ing…
In late April, I attended the Infrastructure Sustainability & Design Conference hosted by Zofnass Program for Infrastructure Sustainability at the Graduate School of Design at Harvard. The event centered on the Zofnass Sustainable Infrastructure Rating System. I confess the program was new to me, but I came away seeing the potential this rating system can have on large infrastructure projects.

At SvR, we approach projects by planning, designing, and recommending life-time solutions centered around green infrastructure components: mobility, water, community, habitat, energy, and geologic. Zofnass strikes me best as a system focused on large-scale developments. The rating system assesses the sustainability of a project over its entire life-cycle, from the need phase to rehabilitation, even decommissioning – cradle to grave. The system endeavors to quantify a project’s sustainability against national standards, local context, and benchmark projects. The program is seeking input and I encourage you to contact Brian Kenet at bkenet@gsd.harvard.edu to learn how you can contribute.

Branson, MO – Regenerating Streets
Cole and Associates of St. Louis, Missouri asked Civitas, Alta Planning and Design, and SvR Design Company to come and speak at the American Public Works Association – Missouri State Chapter spring conference; the topic – Regenerating the City Street. This remains a timely and important American topic (see our last blog post). Most American streets belong to cars – not communities. Think – where is a city’s identity, its first impression, a synthesis of their priorities reflected? Streets. Based on the conversation following our presentation, public works directors and city engineers in Missouri municipalities are seeing how critical their streets are. You can download our presentation on our resources page.

San Francisco, CA – Cost/Benefit Calculator
City officials, consulting engineers, and professors from around the world (Korea to United Kingdom) gathered in San Francisco in mid-April for the American Society of Civil Engineers 2010 International Low Impact Development Conference. SvR was honored to give two presentations (see our resources page for the presentations). Aside from our presentations, one presentation stood out. The Center for Neighborhood Technology (CNT) out of Chicago presented their efforts to develop a cost/benefits calculator for green infrastructure systems. Our industry lacks cost/benefits data, which would be valuable to present to clients considering these systems. The calculator is getting off the ground but needs data. Again, I encourage you to contact CNT to learn how you can contribute data.

Final Observation…
Coming back from these conferences, I was refreshed by the aggregate passion for a healthy society. I am also struck by the reality – on a global level – for a necessary seawind of change to preserve our planet and reclaim infrastructure for the benefit and use of our communities. The grassroots movement exists. What is our movement’s next step? How can we catalyze change that remains?

One word: Policy.

Obstacles to Green Infrastructure: M+O

Posted April 1st, 2010 by Brice Maryman

Thornton Creek Water Quality Channel's Planting

We’re at the tipping point for LID.

Efficacy is no longer an issue. After years of promoting low impact development practices because of their ability to mimic the natural processes of undisturbed landscapes, numerous projects, around the country, have shown the effectiveness of LID. Federal policy is shifting to incentivize LID/green infrastructure. And Portland’s Mayor, Sam Adams, is using new funding strategies to achieve both stormwater and bicycle mobility objectives.

But still there is resistance to widespread adoption of low impact development facilities like bioswales and porous pavements.

One of the more intractable issues is maintenance and operations. Private developers are often concerned that LID presents a maintenance nightmare. And public utilities–which have been some of the pioneers in implementing LID–may not be confident in having the funding resources to maintain and/or establish the plants used in so many LID facilities.

Thanks to Seattle Public Utilities and Seattle Housing Authority, we’ve had the opportunity to update High Point’s Right-of-Way and Open Space Landscape Maintenance Guidelines bi-annually, and have worked with the various maintenance companies to train them on the intent of LID. It is definitely different than most landscape maintenance regimes, but different does not mean more. Different means different.

Porous Pavements and Bioswales at High Point

Let’s take one example, mulch. The first bioretention swales that were installed at High Point in 2003 started with compost then applied standard bark mulch to protect the plants, control weeds and retain moisture–that was until the heavier rains came and the bark mulch appeared to migrate or floating away. We moved to topping with compost yard mulch and now several years later they are topping with arborist wood chips from on site tree pruning. Lesson learned.

Widespread adoption of LID is going to absolutely critical to retrofitting our developed landscape and repairing the Sound, which is why we’ve been sharing our technical guidelines on the website. Please use them, we need to move quickly beyond the obstacles and make LID the new normal.