Landscape Architects Form Task Force to Scale Up Solutions to the Climate and Biodiversity Crises

ASLA 2023 Professional General Design Honor Award. The Meadow at the Old Chicago Post Office. Chicago, Illinois. Hoerr Schaudt / Dave Burk

Led by leaders in the field of landscape architecture, ASLA is developing an updated, profession-wide Climate and Biodiversity Action Plan

ASLA is announcing the experts that will develop its new Climate and Biodiversity Action Plan for the landscape architecture community. The five-member Task Force and 33-member Advisory Group of climate and biodiversity leaders from the landscape architecture profession will guide this effort. The new plan will be released at the ASLA Conference on Landscape Architecture, October 10-13, 2025, in New Orleans, Louisiana.

The new plan will be an update to the ASLA Climate Action Plan, which was released in 2022, and offer new goals and actions for 2026-2030. The scope of the new plan has been expanded – the climate and biodiversity crises will be treated as equal priorities, and the focus will be on actions that tackle both crises in an equitable way.

The ambitious plan seeks to transform the practice of landscape architecture by 2040 through actions taken by ASLA and its members focused on biodiversity and ecological restoration, climate mitigation and adaptation, equity, and economic development.

Meg Calkins, FASLA, Professor, Landscape Architecture and Environmental Planning, NC State University, has been named Chair of the Task Force.

“Landscape architects know that nature-based solutions can help address both the climate and biodiversity crises while also providing multiple economic, environmental, social, and health benefits. This incredible Task Force and Advisory Group, made up of biodiversity, climate, equity, and advocacy leaders, will show us the way and guide our collective action over the next five years,” said ASLA President Kona Gray, FASLA.

“ASLA believes that landscape architects’ climate and biodiversity work provides significant benefits to communities in the U.S. and around the world. This new plan will act as a roadmap for strengthening communities’ economic well-being while also conserving and restoring ecosystems, reducing emissions, and enhancing resilience over the long-term,” said ASLA CEO Torey Carter-Conneen, Hon. ASLA.

Task Force members include:

  • Chair: Meg Calkins, FASLA, Professor, Landscape Architecture and Environmental Planning, NC State University, Raleigh, North Carolina
  • Equity Lead: Diane Jones Allen, FASLA, D. Eng., PLA, Director and Professor, Program in Landscape Architecture, University of Texas at Arlington (UTA), and Principal Landscape Architect, DesignJones, LLC, Arlington, Texas and New Orleans, Louisiana
  • Biodiversity Lead: Jennifer A. Dowdell, ASLA, Practice Leader: Landscape Ecology, Planning & Design, Biohabitats, Baltimore, Maryland
  • Climate Lead: Mariana Ricker, ASLA, PLA, Associate Principal, SWA Group, San Francisco, California
  • Advocacy Lead: Andrew Wickham, ASLA, PLA, Project Leader, Landscape Architecture, LPA Design Studios, Sacramento, California
ASLA Climate and Biodiversity Action Plan Task Force

The goals and actions of the new plan are also shaped by a Climate and Biodiversity Action Plan Advisory Group of 33 diverse leaders, who hail from 16 U.S. states and four countries and are in private, public, non-profit practice, and academia. The Advisory Group consists of 20 women and 13 men; and three Black, four Asian and Asian American, seven Latino/a, and two Indigenous members.

Advisory Group members include:

  • José Almiñana, FASLA, PLA, SITES AP, LEED AP, Principal, Andropogon Associates, Philadelphia, Pennsylvania
  • Megan Barnes, ASLA, Senior Program Manager, Landscape Architecture Foundation, Washington, D.C.
  • Lisa Beyer, ASLA, PLA, Senior Manager, Nature for Urban Resilience, World Resources Institute, San Francisco, California
  • Roxanne Blackwell, Hon. ASLA, Managing Director, Government Affairs, ASLA
  • Jean Senechal Biggs, FASLA, Resource Development Manager, Metro, and Vice President, Professional Practice, ASLA, Portland, Oregon
  • Keith Bowers, FASLA, PLA, PWS, Advocate and Practice Leader, Biohabitats, Charleston, South Carolina
  • Chingwen Cheng, ASLA, PLA, Director and Professor, Stuckeman School, Penn State University and Past President, Council of Educators on Landscape Architecture (CELA), States College, Pennsylvania
  • Aida Curtis, FASLA, PLA, Principal, Curtis + Rogers Design Studio and Chair, ASLA Biodiversity and Climate Action Committee, Miami, Florida
  • Dr. Jennifer Egan, PhD, PG, Program Manager, Environmental Economics and Conservation Finance, Environmental Finance Center, School of Architecture, Planning, and Preservation, University of Maryland, College Park, Maryland
  • Grant Fahlgren, Indigenous Design Lead, PFS Studio and Co-Chair, Canadian Society Landscape Architects Reconciliation Advisory Committee, Toronto, Ontario, Canada
  • Sarah Fitzgerald, ASLA, PLA, Climate and Sustainability Lead and Associate, SWA Group, Dallas, Texas
  • MaFe Gonzalez, ASLA, Landscape designer and botanist, BASE Landscape Architecture, San Francisco, California
  • Kona Gray, FASLA, PLA, Principal, EDSA and President, ASLA, Fort Lauderdale, Florida
  • Deb Guenther, FASLA, PLA, LEED AP, SITES AP, Partner, Mithun, Seattle, Washington
  • Chris Hardy, ASLA, PLA, CA, Senior Associate, Sasaki and Founder, Carbon Conscience, Boston, Massachusetts
  • Daniella Hirschfeld, PhD, Assistant Professor, Climate Adaptation Planning, Urban Ecology, Environmental Justice, Department of Landscape Architecture and Environmental Planning, Utah State University, Logan, Utah
  • José de Jesús Leal, ASLA, PLA, APA, Principal and Studio Director, Native Nation Building Studio, MIG, Sacramento, California
  • Mia Lehrer, FASLA, President, Studio-MLA, Los Angeles, California
  • Vincent Martinez, Hon. AIA, President and COO, Architecture 2030, Seattle, Washington
  • Anna McCorvey, RA, LEED AP BD+C, Senior Equitable Development Manager, 11th Street Bridge Park, and Founder and Executive Director, The River East Design Center, Washington, D.C.
  • Hitesh Mehta, FASLA, FRIBA, FAAK, Assoc. AIA, President, HM Design, and Executive in Residence and Courtesy Professor at Chaplain School of Hospitality, Florida International University, Fort Lauderdale, Florida
  • Gabriel Díaz Montemayor, ASLA, Associate Professor of Landscape Architecture, Fay Jones School of Architecture + Design, University of Arkansas at Fayetteville, Fayetteville, Arkansas
  • Chelina Odbert, Hon. ASLA, CEO and Founding Principal, Kounkuey Design Initiative, Los Angeles, California
  • Dr. Sohyun Park, ASLA, PhD, Associate Professor, Landscape Architecture, Department of Plant Science and Landscape Architecture, University of Connecticut, Storrs, Connecticut
  • Betsy Peterson, ASLA, Director, August Design Collaborative, Aberdeen, Scotland, UK
  • April Phillips, FASLA, PLA, Landscape architect, artist, and past Chair, ASLA Biodiversity and Climate Action Committee, Talent, Oregon
  • Catherine Seavitt, FASLA, Chair of Landscape Architecture and Meyerson Professor of Urbanism; Faculty Co-Director, McHarg Center; Department of Landscape Architecture, Weitzman School of Design, University of Pennsylvania, Philadelphia, Pennsylvania
  • Steven Spears, FASLA, PLA, AICP, Principal, Groundwork Development and Momark Development, Austin, Texas
  • Amy Syverson-Shaffer, ASLA, Sustainability Leader, Landscape Forms, Inc., Kalamazoo, Michigan
  • Jerry Smith, FASLA, PLA, EDAC, LEED AP, Founding Principal, SMITH GreenHealth Consulting, Columbus, Ohio
  • Julia Watson, Author, Lo—TEK Design by Radical Indigenism; Principal, Julia Watson llc; and Co-founder, Lo—TEK Institute, Brooklyn, New York
  • Jonathan Williams, ASLA, PLA, Founder, Outdoor Practice, Houston, Texas
  • Dr. Kongjian Yu, FASLA, PhD, Founder, Turenscape and Professor and Dean, College of Architecture and Landscape, Peking University, and Cornelia Hahn Oberlander International Landscape Architecture Prize Winner, Beijing, China

In 2022, ASLA released its first Climate Action Plan, with a bold vision for 2040:

All landscape architecture projects will simultaneously:

  • Achieve zero embodied and operational emissions and increase carbon sequestration
  • Provide significant economic benefits in the form of measurable ecosystem services, health co-benefits, sequestration, and green jobs
  • Address climate injustices, empower communities, and increase equitable distribution of climate investments
  • Restore ecosystems and increase and protect biodiversity

For the past three years, ASLA has also been an official observer to the UN Framework Convention on Climate Change (UNFCCC) Conference of Parties (COP) meetings. At COP29 last year, ASLA Biodiversity and Climate Action Fellow Pamela Conrad, ASLA, released WORKS with NATURE: Low Carbon Adaptation Techniques for a Changing World. It serves as a supplement to the UN National Adaptation Plan Technical Guidelines. ASLA also released a series of briefs on the economic benefits of nature-based solutions and landscape architecture, developed with the University of Maryland Environmental Finance Center.

In 2020, ASLA and its members formed a Biodiversity and Climate Action Committee, which laid the groundwork for the ASLA Climate and Biodiversity Action Plan.

ASLA Announces 2024 Professional Awards

ASLA 2024 Professional General Design Honor Award. Tom Lee Park: “Come to the River.” Memphis, Tennessee. SCAPE / Landscape Architecture, Studio Gang / Tom Harris

By Lisa Hardaway

ASLA has announced its 2024 Professional Awards. Thirty-nine Professional Award winners showcase innovation and represent the highest level of achievement in the landscape architecture profession. The 39 winners were chosen out of 465 entries.

Jury panels representing a broad cross-section of the profession, from the public and private sectors, and academia, select winners each year.

For the second year, the ASLA / International Federation of Landscape Architects (IFLA) Global Impact Award is presented to a project in the Analysis and Planning category. The award is given to a work of landscape architecture that demonstrates excellence in addressing climate impacts through transformative action and scalable solutions, and adherence to ASLA’s and IFLA’s climate action commitments.

The 2024 award goes to the Puente Hills Landfill Park Plan in Los Angeles, by the landscape architecture firm Studio-MLA and their client the County of Los Angeles Department of Parks & Recreation. Puente Hills Landfill Park re-purposes what was once the nation’s second-largest landfill into a park for all. The plan identified extreme heat and drought as the most likely climate impacts over time.

The Professional Awards jury also selects a Landmark Award each year; this year’s Landmark Award celebrates Xochimilco Ecological Park by Grupo de Diseño Urbano, S.C.

Declared a UNESCO World Heritage Site in 1988, the 3,000-hectare cultural landscape of the Chinampas region is home to a sustainable agriculture system that is prehispanic in origin. The park includes a plant and flower market, a sports complex, and wetlands that are home to more than 200 species of birds and host 2.5 million visitors annually.

“These award-winning projects are transformative and inspiring,” said ASLA President SuLin Kotowicz, FASLA, PLA. “The project leaders clearly demonstrated technical excellence, elegant design, and a deep connection to human experiences in nature. Congratulations to you all.”

“These winners showcase landscape architecture as the profession that’s leading the way in helping communities thrive,” said ASLA CEO Torey Carter-Conneen. “These projects successfully address multiple challenges and have set a high bar for excellence. Equitable design, economic growth, capturing more carbon, and increasing the health, safety, and well-being of communities all at the same time is a stunning display of leadership and innovation.”

Award recipients and their clients will be honored in person at the Student and Professional Awards Ceremony at the ASLA 2024 Conference on Landscape Architecture in Washington, D.C., October 6-9.

Award Categories

General Design

Honor Award
EcoCommons – Social and Ecological Resilience in the Campus Landscape
Nelson Byrd Woltz Landscape Architects

Honor Award
Alpine Garden and Amphitheater
Z’scape

Honor Award
Benjakitti Forest Park: Transforming a Brown Field into an Urban Nature
Turenscape + Arsomslip

Honor Award
Tom Lee Park: “Come to the River”
SCAPE Landscape Architecture PLLC; Studio Gang

Honor Award
The Bay: “One Park for All” in Sarasota
Agency Landscape + Planning

Honor Award
Sandy Hook Memorial: The Clearing
SWA Group

Honor Award
African Ancestors Memorial Garden
Hood Design Studio

Honor Award
Louisiana Children’s Museum: A Joyous Landscape in City Park
Mithun

Honor Award
St. John’s Terminal: An Ecology for Technology and Innovation
Future Green Studio

ASLA 2024 Professional Urban Design Award of Excellence. Atlanta BeltLine. Atlanta, Georgia. Perkins&Will / Randy Maxwell

Urban Design

Award of Excellence
Atlanta BeltLine
Perkins & Will

Honor Award
Urban Balcony Embracing Rewilded Nature
Turenscape

Honor Award
Celebrating Community Resiliency: An Equitable Garden Transformation
MKSK Studios

Honor Award
Wild Mile: Transforming an Urban River into a Floating Eco-Park
Omni Workshop; Skidmore Owings & Merrill

Honor Award
The Wharf’s 7th Street Park and Recreation Pier
Michael Vergason Landscape Architects

ASLA 2024 Professional Residential Design Honor Award. La Fénix at 1950. San Francisco, California. GLS Landscape | Architecture / Bruce Damonte

Residential Design

Honor Award
Nurturing Nature in the Mile High City
Design Workshop

Honor Award
La Fénix at 1950
GLS Landscape | Architecture

Honor Award
House on the Bluff
LaGuardia Design

Honor Award
Highbank: The Restoration of a Lost Prairie
Design Workshop

Honor Award
Uliveto
SurfaceDesign, Inc.

Honor Award
Trinity Road
SurfaceDesign, Inc.

ASLA 2024 Professional Analysis and Planning Award of Excellence. A Green Ring for the ancient city of Pompeii. Pompei, Naples, Italy. Studio Bellesi Giuntoli

Analysis & Planning

Award of Excellence
A Green Ring for the Ancient City of Pompeii
Studio Bellesi Giuntoli

Honor Award
Sojourner Truth State Park for Scenic Hudson
OLIN

Honor Award
The Resilient Campus: Historic Ecology and Water Conservation at UCLA
Design Workshop

Honor Award
A Cultural Approach: The Fort Peck Tribes Hazard Mitigation Plan
Spackman Mossop Michaels

Honor Award
Seven Greenways: A Cooperative Vision for Water in the Arid West
Design Workshop

Honor Award
Ellinikon Park: Planning for Climate Action and Carbon Positivity
Sasaki Associates, Inc.

Honor Award
University of California, Berkeley Accessible Paths and Places Plan
Sasaki Associates, Inc.

ASLA 2024 Professional Communications Honor Award. The Topography of Wellness. Boston, Massachusetts. Sara Jensen Carr, ASLA

Communications

Award of Excellence
The Topography of Wellness
Sara Jensen Carr

Honor Award
What’s Out There Guide to African American Cultural Landscapes
The Cultural Landscape Foundation

Honor Award
Connecting to Our Indigenous Histories at Machicomoco State Park
Nelson Byrd Woltz Landscape Architects

Honor Award
The Community First Toolkit: A Framework for Equitable Public Spaces
Grayscale Collaborative

Honor Award
2023 Coastal Master Plan: A Plan for Louisiana’s Coastal Communities
SCAPE Landscape Architecture PLLC

Honor Award
Design By Fire
Brett Millligan, ASLA; Emily Schlickman, ASLA

ASLA 2024 Professional Research Award of Excellence. Designing with a Carbon Conscience. Boston, Massachusetts / Sasaki

Research

Award of Excellence
Designing with a Carbon Conscience
Sasaki Associates, Inc.

Honor Award
Assessing Public Space DEI: Tempe Study
Design Workshop

Honor Award
Landscape Architecture for Sea Level Rise: Innovative Global Solutions
Texas A&M University

Honor Award
Race and the Control of Public Parks
Isaac Cohen, ASLA; buildingcommunity WORKSHOP

Jury 1: General Design, Residential Design, Urban Design & Landmark Award

Chair Jury 1: Jennifer Nitzky, FASLA, Studio HIP

Members:
Michelle Delk, FASLA, Snohetta
Kyle Fiddelke, FASLA, OJB
John Gendall, Chapter Agency
Devon Henry, Hon ASLA, Team Henry Enterprises, LLC
Marc Miller, ASLA, Penn State
Chelina Odbert, Hon. ASLA, Kounkuey Design Initiative
Michele Shelor, ASLA, Colwell Shelor LA
Lance Thies, ASLA, City of Lockport

Jury 2: Analysis & Planning ASLA / IFLA Global Impact Award, Research, Communications & Landmark Award

Chair Jury 2: Glenn LaRue Smith, FASLA, PUSH Studio LLC

Members:
Luis Gonzalez, ASLA, EYA, LLC
Anyeley Hallova, Adre
Rebecca Leonard, ASLA, Lionheart Studio
Frank Edgerton Martin, Frank Edgerton Martin
Mary Pat McGuire, ASLA, University of Illinois
Ramon Murray, FASLA, Murray Design Group
Marion Pressley, FASLA, Pressley Associates
Darneka Waters, ASLA, Mecklenburg County Park and Recreation

IFLA Representative: Monica Pallares, IFLA America Region

CELA Representative: Dongying Li, Texas A&M University

LAF Representative: Austin Allen, ASLA, University of Texas at Arlington

ASLA Survey: Continued Increase in Demand for Nature-Based Solutions to Climate Change

ASLA 2023 Landmark Award. Vista Hermosa Natural Park. Los Angeles. Studio-MLA / Hunter Kerhart

Clients are looking to landscape architects to increase resilience to climate impacts faster and address biodiversity loss

ASLA has released the results of its second national survey on client demand for landscape architecture solutions to climate change. Over 500 landscape architects, designers, and landscape architecture educators in the U.S. responded to the survey in March 2024. The survey asked many of the same questions as in the first national survey issued in 2021.

Nationwide, demand for planning and design solutions to climate change has increased over the past year.

  • 70 percent of landscape architects and designers responding to the survey experienced at least a 10 percent increase in client demand for these solutions over the prior year.
  • And 52 percent of landscape architects and designers experienced more than a 25 percent increase in demand.

“The survey shows that the impacts of the climate and biodiversity crises only continue to worsen. But amid the growing damages, it is heartening that more communities are looking to smart, nature-based solutions that increase resilience, improve health and well-being, and provide economic benefits,” said Torey Carter-Conneen, ASLA CEO.

According to the 2024 survey results, city and local governments are the foremost drivers of demand for climate planning and design projects. State governments, non-profit organizations, and the federal government, are also driving demand.

Clients are concerned about a range of climate impacts, but are most concerned with:

  • Increased intensity of storms
  • Increased duration and intensity of heat waves
  • Loss of pollinators, such as bees and bats
  • Changing / unreliable weather
  • Increased spread and intensity of inland flooding

The top five concerns of clients are the same as in the ASLA survey results published in 2021, but there are significant increases in the percentage of landscape architects identifying these as client concerns.

The 2024 survey finds that landscape architects are also actively educating public, commercial, and residential clients about the importance of investing in more climate-smart practices.

Nationwide, 66 percent of landscape architects and designers surveyed are recommending the integration of climate solutions to “all or most” of their clients, approximately the same as found in the 2021 survey. They are creating demand for more sustainable and resilient landscape planning and design practices through “advocacy by design” approaches that persuade city, local government, and other clients to update policies and regulations.

To increase resilience to climate impacts, enhance biodiversity, and reduce greenhouse gas emissions at the same time, landscape architects are planning and designing infrastructure at all scales – from the city and county to district, neighborhood, and site.

Community-wide Solutions:

The top community-wide infrastructure solution clients are requesting is stormwater management to reduce flooding.

Solutions that reduce reliance on fossil-fuel-powered vehicles and greenhouse gas emissions from the transportation sector, which account for approximately a third of all U.S. emissions, take up the next top four in-demand solutions:

  • Walkability improvements
  • Trails
  • Bike infrastructure
  • Complete Streets

Improved bicycle and pedestrian infrastructure also increase community resilience to climate impacts by providing additional layers of safe transportation. This is largely the same as was found in 2021 survey results.

ASLA 2023 Professional Residential Design Award of Excellence. The Rain Gardens at 900 Block. Lexington, Kentucky. Gresham Smith

Economic Benefits:

The survey found that projects to increase the resilience of communities and reduce or store greenhouse gas emissions may also create positive economic impacts:

  • 44 percent of landscape architects and designers surveyed said the top economic benefit of their climate projects is they “avoided expected long-term climate damages.” 37 percent said a key benefit was “avoided expected short-term climate changes.” And 35 percent also cited reduced maintenance and operations costs.
  • 42 percent of those surveyed estimate their climate projects have a construction value of more than $1 million, with 29 percent saying the value of this work is more than $10 million. This is a decrease from the 47 percent found in the 2021 survey results.
  • The climate solutions landscape architects design result in well-paying creative and green jobs. 75 percent of landscape architects and designers surveyed estimated their climate projects created local planning, design, construction, management, or maintenance jobs in the past year, approximately the same as in 2021. And 30 percent said their projects created more than 10 local jobs, a decrease of 15 percent from the 2021 survey results.
  • 27 percent of landscape architects said their projects catalyzed more than $1 million in additional residential or commercial development, with 11 percent saying the development impact was more than $25 million.

The landscape architects surveyed were mixed on whether the maintenance and construction costs and design fees associated with climate projects were higher or lower than traditional projects:

  • 49 percent responded that construction costs were higher than traditional projects; 19 percent said they were the same; and 4 percent said they were lower.
  • 36 percent responded that maintenance costs were higher; 22 percent said they were lower; and 15 percent said they were the same.
  • 43 percent said design fees for climate projects are the same as for traditional projects; 34 percent responded that fees were higher; and 3 percent said they were lower.

According to responses from landscape architects, factors that can affect the cost of climate projects include:

  • The larger scale of these projects.
  • The range of new, complex services required, including climate modeling and scenario planning.
  • The cost of innovative, low-carbon materials.
  • The time required to educate clients and communities on new climate-resilient approaches.
  • The cost of additional certifications (SITES, LEED, etc).
  • The cost of training maintenance teams on new approaches.

More key findings:

Designing resilience to climate impacts remains at the forefront. 41 percent of landscape architects and designers surveyed stated that “all, a majority, or about half” of clients are now requesting plans and designs to increase resilience to existing or projected climate impacts, such as extreme heat, flooding, sea level rise, storm surges, and wildfires. This is a decrease from 48 percent of clients in 2021.

But in comparison with 2021, more clients are seeking to increase resilience to climate impacts faster:

  • 43 percent of clients seek to increase resilience to immediate climate risks or impacts, an increase of 4 percent over 2021 survey results.
  • 42 percent seek to increase resilience to climate impacts projected over the next 5-10 years, a 6 percent increase over 2021 survey results.
  • 37 percent of clients are planning now for the long-term and seeking solutions for expected climate risks and impacts 10-50 years out, a 5 percent increase over 2021 survey results.
  • 42 percent of clients seek to increase resilience over the next 2-5 years, approximately the same as in 2021 survey results.

Nature-based solutions to a range of climate impacts are in demand. Public, non-profit, community, and private clients are looking to landscape architects to plan and design solutions to impacts such as wildfires, sea level rise, flooding, drought, extreme heat, and biodiversity loss and ecosystem degradation.

According to landscape architects, designers, and educators surveyed, these are the top solutions requested by clients for each climate impact area. Note: Not all climate impacts are relevant to the respondents’ regions.

Extreme heat solutions:

  • Street trees (70%)
  • Shade structures / canopies (62%)
  • Parks (38%)
  • Tree groves (34%)
  • Green roofs (30%)

The same top five solutions were requested by clients in the 2021 survey results, but there is a 6 percent increase in demand for street trees as a heat solution since then.

ASLA 2023 Professional General Design Honor Award. The University of Texas at El Paso Transformation. El Paso, Texas. Ten Eyck Landscape Architects, Inc / Adam Barbe

Wildfire solutions:

  • Firewise landscape design strategies (30%)
  • Defensible spaces (25%)
  • Land-use planning and design changes (17%)
  • Wildfire risk or impact assessment (15%)
  • Controlled burns (12%)

A new solution to wildfires in the top five in 2024 is controlled burns. A solution listed in the top five in 2021 – forest management practices – is no longer in the top five in 2024.

Fire risk reduction strategy / SWA

Flooding solutions:

  • Bioswales (72%)
  • Rain gardens (70%)
  • Permeable pavers (60%)
  • Trees (54%)
  • Stormwater-managing open spaces (47%)

The percentage of clients requesting bioswales increased by 10 percent, and rain gardens by 9 percent in comparison with the 2021 survey results. A new solution in the top five in 2024 is stormwater-managing open spaces. A solution listed in the top five in 2021 – wetland restoration – is no longer in the top five in 2024.

Laguna Canyon Foundation, Laguna Beach, Californian. Terremoto / Caitlin Atkinson

Drought solutions:

  • Native, drought-tolerant plants (79%)
  • Low-water, drought-tolerant plants (73%)
  • Irrigation systems (51%)
  • Landscape solutions that increase groundwater recharge (40%)
  • Greywater reuse (33%)

The same top five solutions were requested by clients in the 2021 survey results, but there has been a 12 percent increase in demand for native, drought-tolerant plants, and a 5 percent increase in demand for “landscape solutions that increase groundwater recharge” as drought solutions since then.

ASLA 2023 Professional General Design Honor Award. University of Arizona Environment + Natural Resource II. Tucson, Arizona. Colwell Shelor Landscape Architecture / Marion Brenner

Biodiversity loss and ecosystem degradation solutions:

  • Increase diversity of native tree and plant species (65%)
  • Native plant gardens (64%)
  • Increase use of plant species pollinators rely on (58%)
  • Ecological landscape design (48%)
  • Ecological restoration (38%)

The same top five solutions were requested by clients in the 2021 survey results, but there has been an 8 percent jump in demand for “increase diversity of native tree and plant species,” a 6 percent jump in demand for native plant gardens, a 6 percent increase in demand for “increase use of plant species pollinators rely on,” and a 7 percent increase in demand for “ecological landscape design” as biodiversity loss and degradation solutions since then.

ASLA 2023 Professional General Design Honor Award. The Meadow at the Old Chicago Post Office. Chicago, Illinois. Hoerr Schaudt / Dave Burk

Sea level rise solutions:

  • Nature-based solutions (35%)
  • Erosion management (29%)
  • Beach / dune restoration (23%)
  • Other coastal ecosystem restoration (20%)
  • Sea walls (19%)

A new solution to sea level rise in the top five in 2024 is sea walls. A solution listed in the top five in 2021 – berms – is no longer in the top five in 2024.

ASLA 2017 Professional Analysis and Planning Award of Excellence. Storm + Sand + Sea + Strand — Barrier Island Resiliency Planning for Galveston Island State Park. Galveston, TX, Studio Outside

Reducing or storing greenhouse gas emissions is a priority for some clients, but many climate resilience and biodiversity solutions already provide carbon benefits.

Landscape architects are using tools like Climate Positive Design’s Pathfinder and Sasaki’s Carbon Conscience to plan and design projects that absorb more carbon than they emit over their lifespans.

Projects at all scales can be designed to not only increase resilience and biodiversity, but also act as natural and designed carbon sinks, storing carbon in trees, shrubs, and carbon-sequestering materials, such as woods and pavers.

13 percent of respondents stated that “all, a majority, or about half” of clients are specifically requesting projects that reduce or store greenhouse gas emissions now, down from 27 percent in 2021.

Top ten strategies sought by clients to reduce or store greenhouse emissions include:

  • Parks and open space (53%)
  • Habitat creation / restoration (52%)
  • Elimination of high-maintenance lawns (47%)
  • Bicycle and pedestrian-oriented transportation plans (42%)
  • Tree and shrub placement to reduce building energy use (42%)
  • Material reuse – 34%
  • Low-carbon materials research / specification – 22%
  • Minimizing soil disturbance – 22%
  • Carbon-neutral landscape planning and design – 21%
  • Afforestation – 18%

New solutions in the top ten in 2024 are bicycle and pedestrian-oriented transportation plans and material reuse. There is a 4 percent increase in demand for “habitat creation / restoration” since 2021.

ASLA 2023 Professional Analysis and Planning Honor Award. Joe Louis Greenway Framework Plan. Detroit, Michigan. SmithGroup

Explore the full survey results and highlighted commentary from landscape architects

Biking: An Undervalued Climate Solution

Protected bike lane in Buenos Aires, Argentina, Buenos Aires / FotografiaBasica, istockphoto.com

Transportation accounts for a third of global greenhouse gas emissions. Of those emissions, 90 percent is from road vehicles. And approximately half of those emissions are from passenger cars.

Infrastructure that gets people out of cars and provides a safe, accessible way to bike and walk is a key climate solution. But it’s still not high on the global climate agenda.

At Transforming Transportation in Washington, D.C., government and non-profit leaders explained how they are trying to elevate active transportation in climate discussions.

The Netherlands, one of the world’s biking superpowers, seeks to promote cycling and walking on a global level. At COP28 in Dubai, they launched the ACTIVE Program, creating a global financial fund to increase investment in bike and pedestrian infrastructure.

Kees van der Berg, vice minister of mobility and transport at the Dutch Ministry of Infrastructure and Water Management, said the program aims “to train 10,000 experts worldwide in biking and walking infrastructure in ten years.”

The Netherlands and other major donors and financial institutions are also trying to further demonstrate the economic benefits of bike and pedestrian infrastructure that landscape architects design.

“Biking is a cost-effective way to reduce greenhouse gas emissions. Active mobility programs make perfect economic sense if you look at their climate, health, and financial benefits,” said Nicholas Peltier, transport global director at the World Bank.

He pointed to research from the Institute for Transportation and Development Policy (ITDP). Their recent report found large-scale bike infrastructure, spanning hundreds of miles in cities, creates significant returns on investment. Looking at five leading cities — Tianjin, China: Buenos Aires, Argentina; Lima, Peru; Addis Ababa, Ethiopia; and Dar es Salaam, Tanzania — ITDP found returns range from 50 to 100 percent.

Building safe, accessible bike infrastructure also spurs on more bike use, said Rogier van der Berg, with the World Resources Institute (WRI).

For example, Buenos Aires added 43 miles (70 kilometers) of protected bike lanes to three major avenues and then saw bike use increase by 130 to 150 percent.

Sometimes, in addition to providing the infrastructure, cycling can be boosted with public awareness campaigns. In Turkey, “riding a bicycle had a stigma — that you were poor. We worked with local non-profits to change that,” van der Berg said.

According to Filip Boelaert with the government of Belgium, making continuous investments in bike infrastructure over the long-term is important.

More than a decade ago, the Flanders region of Belgium invested €100 million in their bike infrastructure. Now, that is up to €380 million this year. All that investment has increased bike use and led to the growth of e-bikes for longer journeys. The bike system also complements their growing number of pedestrian-only zones.

Peltier argued that bike infrastructure supports local economies. In many cities, bikes are used to make last-mile deliveries, supporting businesses.

Bike infrastructure can also be packaged as carbon offsets, given they are proven to take cars off the road and reduce transportation emissions. They can be a greater part of carbon finance.

Bike lanes and pedestrian friendly areas can be tools for redesigning an entire city. Bogota, Colombia is using its upgrades to reimagine its urban form and become a more livable and accessible city. Lima, Peru has added more than 238 miles (400 kilometers) of bike lanes in support of mass transit investment.

Cyclists in Bogota, Colombia / holgs, istockphoto.com

ITDP is scaling up this work worldwide through a cycling campaign it launched at COP27, with the goal of 25 million more people having access to nearby protected bike lanes by 2025. 34 major global cities have signed on, said Heather Thompson, CEO of ITDP.

“It has been proven over and over. We need designated bike lanes.” They are critical to increasing bike use among younger and older riders of all genders and abilities.

Protected bike lane, Germany / IGphotography, istockphoto.com

And Chiri Babu Maharjan, Mayor of Lalitpur Metropolitan City in Nepal, argued that growing a culture of biking may be just as important.

The Kathandu Valley once had a thriving cycling culture but that was diminished by the growth of motorbike riders in the 1980s. During his tenure, Mayor Maharjan has put in 37 miles (60 kilometers) of bike lanes and recently issued the city’s first tender for nearly 5 miles (8 kilometers) of protected bike lanes.

Biking has spread beyond wealthy European countries to cities across the developing world. But to address the climate crisis, the shift needs to happen more rapidly and more funding is needed.

President Advances Landscape Architects’ Priorities in 2025 Budget Request

ASLA 2023 Professional General Design Honor Award. The University of Texas at El Paso Transformation. El Paso, Texas. Ten Eyck Landscape Architects, Inc. / Adam Barbe

By Roxanne Blackwell, Caleb Raspler, and Matthew Gallagher

On March 11, the White House released the Budget of the U.S. Government for fiscal year 2025. The proposal includes several increases compared to the fiscal year 2024 budget for climate change, biodiversity, parks, water, and transportation.

While these investments can help advance the goals of landscape architects, ASLA believes there are still more resources needed so landscape architects can continue to shape the built and natural environment of tomorrow.

In advance of this release and following the State of the Union, ASLA sent recommendations to the administration to continue deep investment in nature-based infrastructure solutions as part of its forthcoming budget priorities. ASLA’s recommendations are based on member-reported most accessed federal grant programs, ASLA strategic partnerships, and previously requested federal funding.

Here’s how the President’s budget compared to ASLA’s recommendations:

Climate Change: ASLA recommendations regarding federal climate change initiatives closely aligned with the administration. For example, ASLA suggested $25 billion to address climate impacts affecting communities like floods, wildfires, storms, extreme heat, and drought. The administration proposed a total of $23 billion in 2025 to facilitate climate adaptation and resilience across the federal government that landscape architects can take part in, including the American Climate Corps (ACC) and reducing the embodied carbon of construction materials.

Biodiversity: The President’s budget included funding support for biodiversity initiatives like environmental planning and habitat restoration activities. However, the budget did not include ASLA’s specific request for funding to help state and territorial wildlife agencies implement their Wildlife Action Plans and Tribal National conservation efforts. ASLA will continue to work with Congress to pass the Recovering America’s Wildlife Act, which would provide much-needed funds for state biodiversity efforts.

ASLA 2023 Professional General Design Honor Award. The Meadow at the Old Chicago Post Office. Chicago, Illinois. Hoerr Schaudt / Scott Shigley

Active Transportation: Notably, several of the President’s surface transportation budget requests mirror’s ASLA’s recommendations. The fiscal year 2025 President’s budget recommends more than $78 billion to carry out the Federal Highway Administration’s programs, including for surface transportation, roadway safety, transit formula programs, active transportation, and more. The President recommends $14.7 billion for the Surface Transportation Block Grants (ASLA recommends $14.68) and $75 million for the Wildlife Crossings Pilot Program (ASLA recommends $75 million).

ASLA 2023 Professional Residential Design Award of Excellence. The Rain Gardens at 900 Block. Lexington, Kentucky. Gresham Smith

However, the President recommends $800 million for the Rebuilding American Infrastructure with Sustainability and Equity (RAISE) grants. This falls short of ASLA’s recommended $2 billion. This program invests in infrastructure projects like active transportation, Complete Streets, Transit-Oriented Development, and more.

Water Management and Infrastructure: The President’s budget did not include as much funding for water investments as ASLA requested. ASLA asked for more than $9 billion in funding for the U.S. Army Corps of Engineers (USACE) to enhance critical water infrastructure compared to the President’s $7 billion, and more than $3 billion for the Clean Water State Revolving Fund (CWSRF) compared to the President’s $1.24 billion.

National Parks and Public Lands: The President’s budget recommends $3.6 billion for the National Park Service (NPS) compared to ASLA’s suggested $5 billion. The budget includes $125 million for the Land and Water Conservation Fund’s Outdoor Recreation Legacy Program, $11 million to support new sites that preserve the stories of the cultures and history across America, and $11 million to strengthen co-stewardship of Tribal lands.

Equity and Environmental Justice: As ASLA suggested, the President’s 2025 budget prioritized federal investments that address underserved populations through the Justice40 Initiative. Additionally, the budget included funding for STEM education and workforce development programs emphasizing diversity, equity, inclusion, and accessibility. Now that landscape architecture is a STEM discipline, these programs can help advance the profession.

ASLA 2023 Professional Urban Design Honor Award. PopCourts! – A Small Plaza That Turned Into a Movement. Chicago, Illinois. The Lamar Johnson Collaborative / Shelby Kroeger

Community Development: ASLA suggested $3.3 billion for the Community Development Block Grant (CDBG) program to revitalize American neighborhoods compared to the President’s $2.9 billion. Increased investments in this program are needed for landscape architects to continue to support communities and stimulate economic development.

The President’s fiscal year 2025 budget proposal serves as a blueprint for his vision for the upcoming fiscal year. However, Congress is ultimately responsible for developing and passing a budget and appropriations measures to fund the federal government’s functions and activities.

ASLA will continue its efforts to work with congressional leaders and coalition partners to pass spending measures that favor the work of landscape architects.

Learn more about ASLA’s recommendations

Roxanne Blackwell, Hon. ASLA, is managing director of government affairs at ASLA. Caleb Raspler is manager of federal government affairs at ASLA. Matthew Gallagher is grassroots coordinator at ASLA.

Best Books of 2023

Beyond Greenways: The Next Step for City Trails and Walking Routes / Island Press, 2023

Delve into new books on nature, design, and the climate that inform and inspire. Explore THE DIRT’s 10 best books of 2023:

Beyond Greenways: The Next Step for City Trails and Walking Routes
Island Press, 2023

Robert Searns, a trails and greenways planner, offers a fresh take on how to make cities more walkable. He calls for designing “grand loops” on the edges of cities and shorter “town walks,” which are “branded, in-town walking loops” that tie parks, civic spaces, and neighborhoods together. These kinds of trails support good urban design that puts pedestrians’ access to nature and street life first.

The Book of Wilding: A Practical Guide to Rewilding, Big and Small / Bloomsbury Publishing, 2023

The Book of Wilding: A Practical Guide to Rewilding, Big and Small
Bloomsbury Publishing, 2023

Isabella Tree and Charlie Burrell transformed a 3,500-acre dairy farm in Sussex, United Kingdom into a haven for wild plants and animals, including rare nightingales, turtle doves, and purple emperor butterflies, reintroduced beavers and storks, and free-roaming longhorn cattle, pigs, and ponies. With this vivid 560-page book, they offer a how-to manual on how to increase biodiversity in landscapes of all sizes — from a small backyard to a grand park.

Capturing Nature / Princeton Architectural Press, 2023

Capturing Nature: 150 Years of Nature Printing
Princeton Architectural Press, 2023

Botanical print lovers will swoon over the hundreds of rare nature impressions depicted in this immersive, oversized book. Matthew Zucker and Pia Östlund have curated prints of leaves, flowers, ferns, seaweed, and even snakes dating from the 1700s to the 1900s. “The value of these illustrations lies in the fact that the plants, often depicted with flowers and roots, show their natural habitat, their bends and twists, their branches and ramifications, their hairs, spines, and thorns in a fidelity to nature that the greatest artist had not been able to reproduce,” writes Ernst Fischer, in one of the book’s essays.

The Darkness Manifesto: On Light Pollution, Night Ecology, and the Ancient Rhythms that Sustain Life / Scribner, 2023

The Darkness Manifesto: On Light Pollution, Night Ecology, and the Ancient Rhythms that Sustain Life
Scribner, 2023

A study in the journal Science earlier this year found that between 2011 and 2022, light pollution on Earth increased nearly 10 percent. In this book, Swedish bat scientist and writer Johan Eklöf explores the impacts of light pollution on ecosystems and human health and well-being. He calls for incorporating motion-sensors into lighting in parks and on streets to reduce risks for insects, birds, and bats. Eklöf also looks at how Flagstaff, Arizona became the world’s first International Dark Sky City, and France instituted a national policy imposing curfews on outdoor lighting.

The Great Displacement: Climate Change and the Next American Migration / Simon & Schuster, 2023

The Great Displacement: Climate Change and the Next American Migration
Simon & Schuster, 2023

Journalist Jake Bittle tells the stories of people who have already experienced displacement from floods, fires, hurricanes, and droughts brought on by climate change. He finds that federal, state, and local governments and the insurance industry aren’t prepared for the coming migration and are even enabling further loss of lives, property, and livelihoods. The Great Displacement calls for reforming the national flood insurance system, expanding affordable housing, and increasing post-disaster aid and climate adaptation. Landscape architects and planners can learn about the expected demographic shift northward and inland.

The Heat Will Kill You First: Life and Death on a Scorched Planet / Little, Brown and Company, 2023

The Heat Will Kill You First: Life and Death on a Scorched Planet
Little, Brown and Company, 2023

This book is a gripping account of the growing danger of extreme heat, which is already the deadliest climate impact. Author and journalist Jeff Goodell outlines what more of the planet’s population will experience in coming decades and how heat will affect underserved communities the most. From Phoenix to Paris, he looks at how cities are starting to adapt using nature. While clear-eyed about the challenges of planting millions of trees across cities, Goodell sees great hope in what landscape architects do.

Land Art as Climate Action: Designing the 21st Century City Park / Hirmer Publishers, 2023

Land Art as Climate Action: Designing the 21st Century City Park
Hirmer Publishers, 2023

Elizabeth Monoian and Robert Perry are co-founders and co-directors of the dynamic Land Art Generator Initiative (LAGI), which is guided by the idea: “renewable energy can be beautiful.” Since 2010, LAGI has organized global art and design competitions that explore ways to weave renewable energy into our landscapes and create the infrastructure of the future. Featuring 300 color images from past competitions, the book inspires readers to “embrace the beauty, abundance, and cultural vibrancy of a world that has left fossil fuels behind.”

Justice and the Interstates: The Racist Truth About Urban Highways / Island Press

Justice and the Interstates: The Racist Truth about Urban Highways
Island Press, 2023

In her review, Diane Jones Allen, FASLA, director and professor of landscape architecture at the University of Texas at Arlington, writes: “This book exposes the intentional methods to remove citizens from their homes and level neighborhoods in the name of progress. Importantly, it also reveals methods for reconciliation, healing urban scars — literally and figuratively — and planning a path forward. In this effort, landscape architects can play a major role.” Read the full review.

Urban Jungle: The History and Future of Nature in the City / Doubleday, 2023

Urban Jungle: The History and Future of Nature in the City
Doubleday, 2023

“Every day an area of land the size of Manhattan gets urbanized,” writes author Ben Wilson, in this historical overview of cities and nature. He argues that the smart way to reduce the damage of global urbanization is to restore the ecological functions of cities. From New York City to Berlin and Singapore, he looks at how inventive cities are leading the way to bring nature back to urban life. Amsterdam “aspires to perform at least as well as a healthy ecosystem.”

Wisdom of Place: Recovering the Sacred Origins of Landscapes / ORO Editions, 2023

Wisdom of Place: Recovering the Sacred Origins of Landscapes
ORO Editions, 2023

“Every day of our lives we are in the presence of genius — what our ancestor called the genius loci, or spirit of place,” write husband and wife co-authors Chip Sullivan, FASLA, professor of landscape architecture and environmental design at the University of California, Berkeley, and Elizabeth Boults, ASLA, landscape architect and lecturer in human ecology at the University of California, Davis. Through 78 beautiful drawings of tarot cards, they guide readers in rediscovering the “sacredness of everyday landscapes” and reconnecting with the “creative forces” of nature. They view the images in the book as “pathways to enchantment” and a means to reinvest landscapes with spiritual values.

Buying these books through THE DIRT or ASLA’s online bookstore benefits ASLA educational programs.

Confronting the Racist Legacy of Urban Highways

Justice and the Interstates: The Racist Truth About Urban Highways / Island Press

By Diane Jones Allen, D.Eng., PLA, FASLA

Highways, in their inanimate state, cannot be racist. However, the forces that located them and the consequences of their placement are inextricably connected to race. Deborah Archer, a law professor and civil rights lawyer, captures the central concept: “Highways were built through and around Black communities to entrench racial inequality and protect white spaces and privilege.”

In the new book, Justice and the Interstates: The Racist Truth About Urban Highways, editors Ryan Reft, Amanda Phillips du Lucas, and Rebecca Retzlaff explore racial injustice and the interstate highway system. They collect essays that address the dislocation caused by interstates. The book came out of a series of articles in Metropole, a publication of the Urban History Association.

The editors explain the mechanisms used in concert with the Federal-Aid Highway Act of 1956, including federal, state, and local housing legislation, that limited housing and economic opportunities for Latinos and Blacks. They outline how racial zoning maps adopted by municipalities across the U.S. in the early twentieth century established legal boundaries of segregated neighborhoods, making it easier to target these neighborhoods for disinvestment, demolition, and highway location.

The first part of the book brings together three chapters that explore the myths constructed by politicians, transportation planners, builders, and engineers to support building the interstate highway system despite the high costs to communities. One significant myth — the marginalization and destruction of Black and Latino communities were unpredictable consequences of highway development.

Case studies in the book show that the interstate highway system’s negative impacts on urban neighborhoods were known. And any legislation enacted to lessen the adverse effects provided little help to Black and Brown communities but often privileged the interests of their white counterparts.

Sarah Jo Peterson states that the common perception was highways were a system for interstate travel. Unintended impacts on cities were caused by their misuse for travel within cities. And everything terrible that happened in cities due to the development of interstates was the fault of city leaders and urban renewal.

Peterson offers a firm counter argument: racial injustices and the process of transforming urban transportation into highways are connected. Furthermore, these forces still influence American transportation policy and practice today. So it is imperative to articulate what occurred in the past to examine how the past still impacts current transportation development.

There has been a historical accounting of transportation in the U.S. — Edward Weiner’s Urban Transportation Planning in the United States: A Historical Overview, written in 1997. But Peterson points out that this history ignores the impacts of transportation planning and urban expressway construction on Black communities, offering little social analysis. Weiner’s book attributes the clearing of communities and the negative impacts of highway development to federal programs that had unintended consequences.

But contrary to previous historical accountings, impacts of highway development were anticipated by urban leaders. Highways weren’t developed for urban commuter travel demand; they were more suited for rural to urban commutes, especially as car ownership increased. Urban residents moved to the expanding bedroom communities of the suburbs. Urban communities were in the way. The massive acts of eminent domain required for urban expressways were barely acknowledged.

Peterson reveals a significant point: the Federal Highway Administration and highway industry knew. They anticipated the problems for urban transportation, including the dismantling of neighborhoods and the relocation that came with highway expansion, and claimed that these issues were outside of the highway planning process.

Additional citizen participation, which could have provided communities a voice in solving these problems, was mainly used to support highway projects, especially in the 1960s during the height of highway development.

In another chapter, Retzlaff and Jocelyn Zanzot, an assistant professor of landscape architecture at Auburn University, look to Alabama to explore the complexities of highway removal in the face of their racist legacy.

They view interstate highways as monuments to the American racist past, similar to the confederate statues being removed. However, unlike this public statuary, highways cannot quickly be taken down because they underpin the automobile-oriented American transportation system.

How could highways been built without awareness or concern for negative impacts? Impacts include: higher asthma rates, heart disease, mental health risks, noise pollution; increased risk of premature death, neighborhood instability, and community trauma.

Highways were placed to create convenience for some groups at the expense of others. Through the political process, highways were planned in direct alignment with urban areas, near downtowns, and through low-income and minority neighborhoods. State and local highway directors and engineers had significant input into these decisions as they were familiar with local communities, land use, and social and economic conditions.

These local decision-makers found it politically beneficial to avoid white neighborhoods when possible and route highways through neighborhoods lacking political power, which were most often those of color. Using the excuse of removing urban blight, this dark destruction was allowed as it coincided with other tools of oppression, such as redlining and urban renewal.

Alabama provides Retzlaff and Zanot the opportunity to explore a case where the legacy of interstate planning is reckoned with, resulting in reconciliation, transportation access, and community health equity.

Under Sam Englehardt, who was director of highways in Alabama in the late 1950 and early 1960s, race was a critical factor in highway planning. The Montgomery, Alabama, interstate system designed by Englehardt and the Alabama highway department offered no off-ramps from I-65, disconnecting thirteen streets of the neighborhood from the rest of the city. In 1972, African American business people on the west side of Montgomery requested that their community be declared a federal economic disaster zone due to urban renewal projects and interstate construction.

The construction of Interstate I-65 and I-85 in Montgomery displaced 1,596 families and dismantled 74 small businesses. The highway system also impacted African Americans in rural areas of Alabama as they were excluded from gaining access to the services and economic development that freeways connect to.

Retzlaff and Zanot lay out a way forward in repairing the harm caused by interstates.

Transportation and urban planning professionals who design and route interstates need to be on the side of reparative justice for neighborhoods that continue to be harmed by destructive planning and engineering of highways. Planners must actively seek policy and funding opportunities provided by government agencies that address infrastructure investment, holistic revitalization, capacity building, historic preservation, affordable housing, and economic opportunity.

An example of reconciliation: in 2021, West Jeff Davis Avenue in West Montgomery, named after the president of the Confederacy, was renamed Fred D. Gray Avenue in honor of the African American Civil rights attorney who fought against and overturned Montgomery’s segregated public bus system.

Mayor of Montgomery Steven Reed stated at the dedication that the renaming of the street was symbolic. However, concrete reconciliation would be reinvestment in the community, resulting in community health, economic opportunity, and joy.

The book then delves into how the tools engineers, planners, and civic officials used to construct the interstate highway system led directly to racial impacts.

Politicians’ planners and engineers knew the political targets of highway routing; they were communities of color. They created methods that ensured targeting and the predicted consequences.

These methods included leaving democratic and meaningful public engagement out of the highway planning process, segregating highway planning from local land use planning processes, and connecting slum clearance with highway planning and development.

As described by Ruben L. Anthony Jr. and Joseph Rodriguez, communities also used tools to fight freeway expansion. Today, freeway opponents in Milwaukee, Wisconsin, are strategically using history to oppose freeway expansion.

The history of freeways in this city is long and devastating. Between 1960 and 1971, urban renewal and highway development destroyed 20,000 homes in Milwaukee. Much of this displacement happened before the federal government instituted programs to assist communities with housing raised by highway expansion. These communities also lost jobs that went to the suburbs.

Suburbanization affected working-class Black residents who needed public transportation to access to suburban employment and other services. Those who remained in the community saw their property devalued. And the health of those remained were also affected. Many suffered lead poisoning and respiratory conditions from the building of freeways near their homes.

Gilbert Estrada and Jerry Gonzalez describe the displacement of thousands of ethnic Mexicans from their homes. The authors tell a history of forced relocation, neighborhood loss, and disregard for communities by civic officials in greater Eastside neighborhoods throughout Southern California. As with impacts on other communities, consequences were due to cold, technocratic planning.

In the case of Mexican communities, highway development displaced them from their segregated neighborhoods. It pushed them into a local suburbanized housing market, expanding the geography of Latinos in Los Angeles. The authors posit that this phenomenon resulted in delayed redress for displacement.

This demographic shift — or submerged migration, as author Michael Eric Dyson termed it — resulted in more Spanish-surnamed residents in the suburbs surrounding East Los Angeles than in East Los Angeles by 1970. A significant migration of Latinos from Mexico and Central America also contributed to this demographic shift.

Although Latinos live across Los Angeles, they have been most linked to the Eastside. During freeway construction in East Los Angeles in the 1950s and 60s, approximately 2,844 dwelling units were removed, displacing 10,966 residents. The freeways have also increased travel time for residents and restricted movement of Eastside pedestrians through 35 new barriers to local streets.

Eastside Los Angeles Interchange / formulanone, CC BY-SA 2.0

Why did such targeted destruction occur in Eastside? Estrada and Gonzalez cite a lack of financial resources, little-to-know political representation, gerrymandering, and voter suppression.

One byproduct of the new freeways was the diversification of suburban Los Angeles, like the way many urban communities were before segregation and devaluation methods were employed. Another product was the adoption of Eastside highways as their own canvas for expressing their identities, similar to how New Orleans Tremé and Seventh Ward communities have adopted the space beneath the I-10 freeway in New Orleans.

The editors of Justice and the Interstates describe community-led efforts to restore torn communities and address the harm and injustices of freeway building. Amy Stelly eloquently describes the beauty of the Tremé neighborhood and the devastation and racial injustice that it endured with the building of the Claiborne Avenue Expressway.

Stelly describes her efforts to have the freeway removed and stop the Claiborne Corridor Innovation District, a plan to stabilize the uses that community members currently undertake beneath the freeway. She provides valuable techniques in this chapter for community action, including:

  • Galvanizing like-minded allies to coalesce around a shared mission
  • Publishing position papers
  • Connecting to other organizations with needed expertise
  • Working with political representatives
  • Using effective lobbying
  • And, most importantly, communicating with impacted residents through public awareness campaigns.

The District is in its first phase of construction. It doesn’t run counter to Stelly’s goal of removing the freeway and restoring Claiborne Avenue. It activates the space beneath the freeway, claiming and defying this structure in preparation for the time when the freeway comes down. It also forces planners of a post-freeway future to recognize this land as the community’s own.

Claiborne Corridor Innovation District / Diane Jones Allen, FASLA

Justice and the Interstates challenges readers to grapple with the problematic history of interstate development in America. It calls upon citizens, scholars, planners, lawmakers, and all concerned about urban infrastructure, mobility, health, and the equity of our cities to look at the unjust past so as not to repeat it.

The book exposes the intentional methods to remove citizens from their homes and level neighborhoods in the name of progress. Importantly, this text also reveals methods for reconciliation, healing urban scars — literally and figuratively — and planning a path forward. In this effort, landscape architects can play a major role.

Landscape architects dwell well in the space of community healing. We can lead and contribute to environmental and social-cultural reclamation and the renewal of places once devastated by highway infrastructure. Biden-Harris administration funding of highway removal signals that federal and state agencies are now working with local governments. There is a need to remove highways and increase climate mitigation and resilience. Landscape architects can use their unique skills and expertise.

Diane Jones Allen, FASLA, is director and professor of landscape architecture, University of Texas at Arlington College of Architecture, Planning and Public Affairs, and principal landscape architect at DesignJones, LLC. She is author of Lost in the Transit Desert: Race, Transit Access, and Suburban Form (Routledge, 2017).

ASLA Announces 2023 Professional Awards

ASLA 2023 Professional General Design Honor Award. The Meadow at the Old Chicago Post Office, Chicago, IL. Hoerr Schaudt / Dave Burk

Thirty-four Professional Award winners represent the highest level of achievement in the landscape architecture profession

By Lisa Hardaway

ASLA announced its 2023 Professional Awards. Thirty-four Professional Award winners showcase innovation and represent the highest level of achievement in the landscape architecture profession. All winners and their locations are listed below.

Jury panels representing a broad cross-section of the profession, from the public and private sectors, and academia, select winners each year and are listed below. The 34 winners were chosen out of 435 entries.

New this year, the ASLA / International Federation of Landscape Architects (IFLA) Global Impact Award is presented to a project in the Analysis and Planning category. The award is given to a work of landscape architecture that demonstrates excellence in addressing climate impacts through transformative action and scalable solutions, and adherence to ASLA’s and IFLA’s climate action commitments. The inaugural award goes to the Caño Martín Peña Comprehensive Infrastructure Master Plan by OLIN for Corporación del Proyecto ENLACE del Caño Martín Peña. Led by a coalition of residents in the Caño Martín Peña District, the plan will increase access to safe drinking water, flood protection, economic opportunities, and safe housing and open space.

The Professional Awards jury also selects a Landmark Award each year; this year’s Landmark Award celebrates Vista Hermosa Natural Park by Studio-MLA. Previously an oil field located in an urban area without much green space, the park provides residents of a dense, primarily working-class Latine neighborhood with “a window to the Mountains,” opportunities for recreation, access to nature, and quiet reprieve.

“The ASLA Professional Awards are the highest achievement in our profession,” said ASLA President Emily O’Mahoney, FASLA. “This year’s winners are preeminent leaders and have set a high bar for standards of excellence. We congratulate the winners and their clients and thank them for their contributions to the health and well-being of their communities.”

“These award-winning projects showcase how landscape architecture transforms the daily experiences of local communities,” said ASLA CEO Torey Carter-Conneen. “Cutting-edge design solutions help address increasing climate impacts, capture more carbon, and contribute to the health and well-being of neighborhoods. Congratulations to the winners—thank you for your leadership.”

Award recipients and their clients will be honored in person at the awards presentation ceremony during the ASLA 2023 Conference on Landscape Architecture in Minneapolis, Minn., October 27-30.

Award Categories

General Design

Honor Award
Qianhai’s Guiwan Park
New York, New York
Field Operations

Honor Award
Grand Junction Park and Plaza
Philadelphia, Pennsylvania
David Rubin Land Collective

Honor Award
Hood Bike Park: Pollution Purging Plants
Charleston, Massachusetts
Offshoots, Inc.

Honor Award
Remaking a 1970’s Downtown Park into a New Public Realm
Houston, Texas
OJB Landscape Architecture

Honor Award
Peavey Plaza: Preserving History, Expanding Access
Minneapolis, Minnesota
Coen+Partners

Honor Award
The Meadow at the Old Chicago Post Office
Chicago, Illinois
Hoerr Schaudt

Honor Award
University of Arizona Environment + Natural Resource II
Phoenix, Arizona
Coldwell Shelor Landscape Architecture

Honor Award
Cloud Song: SCC Business School + Indigenous Cultural Center
Phoenix, Arizona
Colwell Shelor Landscape Architecture

Honor Award
The University of Texas at El Paso Transformation
Austin, Texas
Ten Eyck Landscape Architects, Inc.

Urban Design

ASLA 2023 Professional Urban Design Award of Excellence. Heart of the City: Art and Equity in Process and Place, Minneapolis, Minnesota. Coen+Partners / Sahar Coston-Hardy

Award of Excellence
Heart of the City: Art and Equity in Process and Place
Minneapolis, Minnesota
Coen+Partners

Honor Award
St Pete Pier, Revitalization of Waterfront and Historic Pier Site
New York, New York
Ken Smith Workshop

Honor Award
Town Branch Commons: An Urban Transformation in Lexington, Kentucky
New York, New York
SCAPE and Gresham Smith

Honor Award
PopCourts! – A Small Plaza That Turned into a Movement
Chicago, Illinois
The Lamar Johnson Collaborative

Residential Design

ASLA 2023 Residential Design Award of Excellence. The Rain Gardens at 900 Block, Lexington, KY. Gresham Smith

Award of Excellence
The Rain Gardens at 900 Block
Nashville, Tennessee
Gresham Smith

Honor Award
Andesite Ridge
Aspen, Colorado
Design Workshop, Inc.

Honor Award
Dry Garden Poetry
San Francisco, California
Arterra Landscape Architects

Honor Award
Collected Works, Restored Land: Northeast Ohio Residence
Cambridge, Massachusetts
Reed Hilderbrand LLC Landscape Architecture

Honor Award
Black Fox Ranch: Extending the Legacy of the West to a New Generation
Aspen, Colorado
Design Workshop, Inc.

Honor Award
Sister Lillian Murphy Community
San Francisco, California
GLS Landscape | Architecture

Analysis & Planning

ASLA 2023 Professional Analysis and Planning Award of Excellence. Re-investing in a Legacy Landscape: The Franklin Park Action Plan, Boston, MA. Reed Hilderbrand LLC Landscape Architecture / Reed Hilderbrand with Agency Landscape and Planning and MASS Design

Award of Excellence
Re-investing in a Legacy Landscape: The Franklin Park Action Plan
Cambridge, Massachusetts
Reed Hilderbrand with Agency Landscape and Planning and MASS Design

Honor Award
The New Orleans Reforestation Plan: Equity in the Urban Forest
New Orleans, Louisiana
Spackman Mossop Michaels

Honor Award
Reimagine Middle Branch Plan
New York, New York
Field Operations

Honor Award
Iona Beach / xwəyeyət Regional Park and WWTP
Richmond, British Columbia, Canada
space2place design inc.

Honor Award
Joe Louis Greenway Framework Plan
Ann Arbor, Michigan
SmithGroup

Honor Award
The Chattahoochee RiverLands
Metro Atlanta Region, Georgia
SCAPE

Honor Award
Nature, Culture + Justice: The Greenwood Park Master Plan
Watertown, Massachusetts
SASAKI

Honor Award
Nicks Creek Longleaf Reserve Conservation & Management Plan
Raleigh, North Carolina
North Carolina State University Coastal Dynamics Design Lab

Communications

Honor Award
Sakura Orihon
Newport, Rhode Island
Ron Henderson / LIRIO Landscape Architecture

Honor Award
The Historic Bruce Street School: A Community-Centered Design Approach
Atlanta, Georgia
Martin Rickles Studio

Honor Award
Landslide: Race and Space
Washington, D.C.
The Cultural Landscape Foundation

Honor Award
Los Angeles River Master Plan Update
Philadelphia, Pennsylvania
OLIN

Research

Honor Award
The Cobble Bell: Research through Geology-Inspired Coastal Management
Charlottesville, Virgina
Proof Projects, LLC

The 2023 Professional Awards Jury includes:

Jury 1 – General Design, Residential Design, & Urban Design

Chair: Kimberly Garza, ASLA, ATLAS Lab Inc.

Michel Borg, AIA, Page Think
Shuyi Chang, ASLA, SWA
Chingwen Cheng, PhD, ASLA, Arizona State University
Claude Cormier, FASLA, Claude Cormier & Associates
Jamie Maslyn Larson, FASLA, Tohono Chul
Garry Meus, National Capital Commission
Jennifer Nitzky, FASLA, Studio HIP

Jury 2 – Analysis & Planning ASLA / IFLA Global Impact Award, Research & Communications

Chair: Maura Rockcastle, ASLA, Ten x Ten

Camille Applewhite, ASLA, Site Design Group
Stephanie Grigsby, ASLA, Design Workshop, Inc
Mitchell Silver, Hon. ASLA, McAdams
Michael Stanley, FASLA, Dream Design International, Inc.
Michael Todoran, The Landscape Architecture Podcast
Yujia Wang, ASLA, University of Nebraska

Joining the professional awards jury for the selection of the Analysis & Planning – ASLA / IFLA Global Impact Award category will be a representative on behalf of the International Federation of Landscape Architects (IFLA).

Monica Pallares, IFLA Americas

Also, joining the professional jury for the selection of the Research Category will be representatives on behalf of the Landscape Architecture Foundation (LAF) and the Council of Educators in Landscape Architecture (CELA).

Jenn Engelke, ASLA, University of Washington, LAF Representative
Sohyun Park, ASLA, University of Connecticut, CELA Representative

New High Line Bridge: A Safe, Ecological Connection

High Line – Moynihan Connector / Andrew Frasz, courtesy of the High Line

In midtown Manhattan, the street crossings surrounding the entrance to the Lincoln Tunnel were once some of the most challenging in the city. A mess of highway ramps, missing sidewalks, and concrete barriers made the corner of Dyer Avenue and 30th Street an area to avoid.

Now with a new $50 million elevated connector, pedestrians can safely move 30 feet above the intersections, using a 600-foot-long L-shaped bridge from the High Line to Moynihan Train Hall.

On their way, they can take a moment to experience a woodland landscape and a marvel of glulam wood engineering designed by landscape architects at James Corner Field Operations (JCFO) and architects and engineers at Skidmore, Owings & Merrill (SOM).

“This new and vital pedestrian walk connects Midtown to the High Line and the West Side with a heightened sense of drama, spectacle, and delight,” said James Corner, FASLA, founder and CEO of JCFO.

High Line – Moynihan Connector / Andrew Frasz, courtesy of the High Line

The connector links the High Line — which starts on Ganesvoort Street in the Meatpacking District and ends at Hudson Yards and the Jacob Javitz Convention Center on 34th Street — with the $1.6 billion train hall that opened in 2021.

The new pedestrian passage can be expected to be used by tens or even hundreds of thousands of people a year. Pre-Covid, the High Line saw eight million visitors annually; and the train station has already welcomed 700,000 travelers.

Like all complex NYC projects, the connector came out of collaboration among a slew of public, private, and non-profit organizations — Empire State Development, the Port Authority of New York and New Jersey, Brookfield Properties, and the Friends of the High Line.

This team states that the connector is part of a collective effort “to create safer, more enjoyable pedestrian access, connect people to transit, and seamlessly link public open spaces and other community assets in the neighborhood.”

High Line – Moynihan Connector / Ken Smith, FASLA

And JCFO, which has designed the High Line since 2004, notes that the connector is just one of new access improvements for the elevated park. A street-level plaza at the edge of the park on 18th Street is in development, and additional spaces to integrate the High Line into the community could happen in the future.

Spanning 600 feet, the walkway is comprised of two segments — a 340-foot-long woodland bridge running east to west, and a 260-foot-long timber bridge going north to south.

The woodland bridge is an extension of the landscape of the High Line Spur, which veers east off the main route of the High Line for half a block at 30th Street. Connected soil beds built into the black steel structure support 60 trees, 90 shrubs, and 5,200 grasses and perennials.

High Line – Moynihan Connector / Andrew Frasz, courtesy of the High Line

“The trees [are] characteristic of an Eastern deciduous forest that will grow into a lush landscape for birds and pollinators, provide shade, and shield pedestrians from traffic below,” the team writes. Ninety percent of the landscape is comprised of native plants, selected to provide color year round and habitat.

High Line – Moynihan Connector / Andrew Frasz, courtesy of the High Line

The timber bridge rises above the stream of traffic coming out of the Lincoln Tunnel, using a truss structure to minimize its footprint on the ground.

High Line – Moynihan Connector / Andrew Frasz, courtesy of the High Line

Made of glulaminated Alaskan yellow cedar wood from British Columbia, Canada, the connector also advances more sustainable practices. The highly compressed wood layers sequester carbon, and construction of the beams released far less greenhouse emissions than a steel alternative.

High Line – Moynihan Connector / Andrew Frasz, courtesy of the High Line

“The selection of glulam was based on its numerous benefits: It is a sustainably-sourced building material that has a lower carbon footprint than concrete or steel, while still providing exceptional durability and strength. Additionally, it adds warmth and texture as a natural material, enhancing the pedestrian experience, and offering a modern take on New York’s historic warren truss railroad bridges and structures,” said Lisa Switkin, ASLA, senior principal at JCFO.

(Switkin explains that glulam has many potential uses for landscape architects. The same Alaskan yellow cedar glulam was also used in their Tongva Park in Santa Monica, California).

Where the two bridges meet, the team also created a small plaza that offers a “moment of pause” amid the cacophony of midtown. Instead of dodging traffic, one can sit and take in the vista.

“We’ve heard for years about how inhospitable these streets around the entrance to the Lincoln Tunnel felt for people in the community. Now, the connector will give our neighbors a safe, green, and inspiring pathway,” said Alan van Capelle, executive director of the Friends of the High Line.

Park(ing) Day 2023: Pollinator Places

Park(ing) Day 2019 installation, Washington, D.C. / MKSK

Park(ing) Day is Friday, September 15. The focus of this year’s Park(ing) Day, which is now in its 17th year, is pollinators.

Birds, bats, bees, butterflies, and other insects need our help more than ever. Use your Park(ing) Day space to educate the public. Show them how landscape architects create healthy places for an important pollinator in your community.

You can use your space to:

  • Provide educational materials about a pollinator in your community that is at risk
  • Show native plants the pollinator relies on
  • Create an interactive game or demonstration that teaches how to design habitat

Post images of your Park(ing) Day installation to your social (Facebook, Twitter, Instagram). Use the hashtag #ParkingDay and tag us (@Nationalasla)

Make sure you have permission or signed release forms from anyone you photograph.

ASLA will highlight the best posts from students, firms, and chapters across our social platforms!

Ideas for How to Highlight Pollinators

In 2019, MKSK partnered with the Washington, D.C. Department of Energy and Environment (DOEE) and the US National Arboretum for Park(ing) Day. The team transformed two parking spots in downtown Washington, D.C. into a native “Pollinator Gallery” that educated the public about the importance of pollinators and the role landscape architects play in protecting them.

Parking Day 2022Park(ing) Day 2019 installation, Washington, D.C. / MKSK

Landscape architects showed the world from a bee’s perspective. “We show how color perception, habitat requirements, and food source change throughout the seasons and are vital to understanding how to create functional ecosystems in designed landscapes,” MKSK explains.

Their Park(ing) Day installation included a meadow of potted native perennials and grasses, and a field of pinwheels, ranging from violet to yellow. “They were painted to represent patterns of ultra-violet light that bees see on flower petals.” The pinwheels were also “fixed at varying heights to indicate the yearly summer peak of insect biomass and its overall decline in recent decades.”

Two bee box brackets “mimic the nesting tunnels created in the ground by solitary, native bees.” The brackets also became an “unexpected, impromptu photo booth for enthusiastic Park(ing) Day visitors.”

Parking Day 2022Park(ing) Day 2019 installation, Washington, D.C. / MKSK

Explore Park(ing) Day resources.