WASLA Board of Directors

Effective November 20, 2020

Committee Description

The Board of Directors administers the Washington Chapter of ASLA including chapter events, conferences, finances, membership and advocacy.

Tasks and Goals

The main tasks & goals of the Board of Directors include:

  • Establishing and maintaining Chapter Strategic Plan with goals and objectives in accordance with ASLA’s and our members’ priorities;
  • Identifying  programs, activities, and events to reach Strategic Plan objectives;
  • Approving proposed amendments to the Chapter Constitution and Bylaws;
  • Setting the time and place for the Chapter’s annual conference and annual awards reception;
  • Issuing public statements in the name of the Chapter;
  • Establishing annual dues;
  • Overseeing committee operations;
  • Supporting student chapter activities;
  • Adopting Chapter programs and annual budgets;
  • Preparing Chapter annual reports including year-end financial statements
  • Directing staff activities and contract support services; and
  • Serve as a conduit between ASLA and our members

Board of Directors Positions



  • Sets the time, place, and agenda for meetings of the Board of Directors;
  • Presides at meetings of the Chapter and the Board of Directors;
  • Represents and acts for the Chapter as directed by the Board of Directors and consistent with the policies of ASLA;
  • Appoints the chairs and members of committees with the approval of the Board of Directors,
  • Serves as a member of the Chapter Presidents Council;
  • Oversees the management and administration of Chapter programs and budgets as adopted by the Board of Directors;
  • Reports on the state of the Chapter at the annual meeting of the Chapter; and
  • Acts as the Board of Directors liaison for the “Membership and Social Events” Committee

President: Duane Dietz, ASLA

I’m a licensed landscape architect with more than 30 years of experience, much of it at Jones and Jones Architects and Landscape Architects. My work includes the planning and design of regional parks, educational and play spaces, zoos, botanical gardens, cultural facilities and historic preservation; and the creation of low impact development standards. My favorite projects include work on Disney’s Animal Kingdom theme park, the National Museum of the American Indian in Washington, D.C., and most recently the Oregon Zoo Education Center in Portland.

My first association with WASLA began in 1986 as a student volunteer at the 1986 ASLA Annual Meeting in Seattle. In 1987 I served as the UW’s Student Representative to the WASLA board. That same year I join the WASLA team responsible for the design of the Seattle-Tashkent Sister City Peace Park in Uzbekistan, USSR.  In 1988 I spent six weeks in Tashkent helping to build the Peace Park, followed by a trip in 1989 to set up an exchange between the UW and Tashkent Polytechnic University.  My involvement with WASLA continued with the 1998 ASLA National Conference in and I served as Program Chair of WASLA’s annual conference in 2012 and 2013 as well as an impromptu advisor during the last threat to landscape architecture licensure in 2017.

Recently, Billy Fleming at the University of Pennsylvania School of Design, issued a challenge to all landscape architects to remake our profession as part of a “Green New Deal”.  In Fleming’s call I see a new opportunities for landscape architects to take on greater leadership roles in design, outreach, and habitat renewal and is something I would pursue as President of WASLA.  And I would recommend that you read Fleming’s article: https://placesjournal.org/article/design-and-the-green-new-deal/#.XNn2kUD5kcg.mailto



  • Represents and acts for the Chapter as directed by the president and consistent with the policies of the Society as established by the Board of Trustees;
  • Serves as acting president when designated by the Board of Directors;
  • Performs such other duties as are customary for the office of chapter president-elect or as may be assigned or delegated by the president;

Past-President: Tim Slazinik, ASLA

Hailing from St. Louis, Missouri, Tim was drawn to Seattle by its inspiring scenery, progressive thinking and laid back attitude. He brings with him a diverse and deep experience set that runs the gamut of scales and project types, from health centers and middle schools to rooftop farms and trail systems. Since moving to Western Washington, his work has included multifamily mixed use developments, residential park systems, and civic institutions. His passion for this work lies at the intersection of design and horticulture, manifested through thoughtful, purposeful landscapes. Tim uses his technical and horticultural expertise to further the core mission of clients through fostering relationships that ultimately result in the design of beautiful, meaningful spaces. He has been practicing for eleven years, and has been licensed for seven.



  • Collects all fees, dues, charges, and other funds due the Chapter;
  • Is the custodian of all Chapter funds and disburses such funds only as authorized by the Board of Directors;
  • Keeps the accounts of the Chapter that shall be open at all times to inspection by the Board of Directors;
  • Presents quarterly reports on the financial condition of the Chapter and year-end financial statements to the Board of Directors;
  • Initiates preparation of the Chapter's annual budget;
  • Works with the Board of Directors and standing committees regarding event budgets and sponsorships;
  • Acts as the Board of Directors liaison for the “Audit" and "Tellers" Committee.

Treasurer: Dean W. Koonts, ASLA, CPD
altAs a Principal at Hough Beck & Baird Inc. (HBB), Dean brings more than 20 years of experience designing spaces primarily in the public realm in both large- and small-scale infrastructure projects. His project work focuses on a variety of multidisciplinary projects including transit, transportation, waterfronts, higher education, parks/trails, land use code development, and planning. He has also received certification as a ‘Crime Prevention through Environmental Design’ Professional Designation (CPD)  through the National Institute of Crime Prevention and specialized CPTED training with the National Crime Prevention Council. His leadership development and small business management expertise brings organizational and strategic skills to his position on the Board of WASLA.




  • Maintains a record of the proceedings of the Chapter's Board of Directors meetings;
  • Leads compilation of and issues the Chapter's Board of Directors meeting agendas;
  • Administers annual and special elections: prepares, issues, and receives election ballots, and notifies candidates of election results;
  • Maintains the Constitution and Bylaws of the Chapter;
  • Organizes and sets the dates and times for the monthly Board of Directors Meetings;
  • Acts as the Board of Directors liaison for the "Public Relations & Communications" Committee.

Secretary: Jason Henry, ASLA

As a principal with Berger Partnership, Jason has built a practice around urban ecology and integrating ecological themes into the urban environment. Over the past twenty-four years his experience has involved every level of project development from master planning through construction completion for a wide array of project typologies, all bound by the philosophy that his work is an opportunity to educate people about the environments and communities in which they live while enriching their daily lives through placemaking and meaningful design. His collaborative work style and passion for creating lasting and memorable environments is evident in all of his work.




  • Stays informed on Chapter and Society goals and objectives, policies, programs, services, activities and events;
  • Serves as the Chapter representative on the Board of Trustees of ASLA;
  • Facilitates the conduct of the business of ASLA by bringing the Chapter perspective to the Board of Trustees and the national perspective to the Board of Directors and members of the Chapter;
  • Facilitates the conduct of the business of the Board of Trustees by serving on standing councils or committees, special study groups or task forces, or as a representative or delegate of the Society; and acts as the Board of Directors liaison for the “Advocacy” and “Fellowship & Scholarship” Committees.

Trustee: Marieke Lacasse, ASLA

A Montréal native, Marieke moved to Seattle in 2000. A principal at GGLO, Marieke co-manages the Landscape Architecture group which she has been a part of since 2001. She has assembled a talented team of professionals at GGLO that is committed to sustainable practices, collaborative design, and driven to work on urban, high-density projects that build community and resiliency. The firm’s commitment to sustainability both in external practice and internal operations has been instrumental in their creative process.  




  • Represents a cross-section of the Chapter’s regional membership;
  • Acts as the Board of Directors liaison for the “Student and Emerging Professionals” Committee;
  • Acts as the Board of Directors liaison for university professional advisory councils or boards
  • Acts as the Board of Directors liaison for WASLA student chapters.


Statewide Member-at-Large: Kiwon Suh, ASLA

Kiwon’s aptitude for creative spatial thinking and big picture design awareness led him to Landscape Architecture, a craft he’s passionately been executing since 2009. A graduate from the University of Washington’s Landscape Architecture program, Kiwon creates spaces that are imaginative, distinct, and implementable. He is acutely aware of how design informs the user’s movement, experience, and interaction with space. Since graduating, he has worked with public to private entities, providing him experience with developers, city officials, and everyone in-between. Kiwon is known for solving tough project challenges and is an advocate for cross-collaboration.


Eastern Washington Member-at-Large: Steele Fitzloff , ASLA

After graduating from Washington State University, Steele began his design career in Spokane, where he is currently part of the landscape architecture team at Bernardo Wills Architects PC. Over the past nine years, Steele has worked on a wide variety of projects in both the public and private realm, and he has a particular interest in K-12 schools, higher education facilities, parks, and sports complex type projects. His interest in these projects generally stems from Steele's passion for the outdoors and sports. Following this passion has allowed Steele be a part of many unique experiences and volunteer opportunities, and in particular working with youth via coaching/mentoring. Steele's free time is generally filled with golf, basketball, fishing, camping/glamping in his wife's vintage trailer, and growing his salsa garden.


Western Washington Member-at-Large: Nicholas Zurlini, ASLA

Nicholas is a 2019 graduate from the University of Washington, who received a Bachelor of Landscape Architecture degree and Minor in Architecture.

At the University, he served as Co-President for the University of Washington Student Chapter of the American Society of Landscape Architecture and discovered one of his greater passions exists in community outreach and engagement. He sought out ways to improve communication between students and faculty, connect his peers with professionals, and engage the community around him.

Nicholas hopes to integrate these passions into his career,  and engage the profession with new typologies and frameworks of youth outreach and mentorship, that can better inform design thinking and build future generations of landscape architects.


For more information please contact WASLA at Phone: 360-867-8820;  Email: [email protected]