[MON-A05]
APPROPRIATE INTERVENTIONS IN MAKING
VERNACULAR STORMWATER INFRASTRUCTURE
[Presenters]
Chih-Wei G.V. Chang, ASLA, SWA Group
Mark Merkelbach, Herrera Environmental Consultants
José Juan Terrasa-Soler, ASLA, Polytechnic University of Puerto Rico
LEARNING OBJECTIVES
1. Learn fundamental hydrology and hydraulics principles for
holistic stormwater management in diverse site contexts.
2. Understand remediation technologies and local applications and
determine the most cost-effective solutions.
3. Learn useful tips for site observation and visual analysis for
integrating dynamic site systems and metrics.
4. Examine the role of the landscape architect and appropriate
interventions.
PRESENTATION OUTLINE
I. Introduction and background
a. The shifting context in the developing regions.
b. Historical context of stormwater management.
With the unprecedented rate of urbanization in
developing regions, landscape architects are
challenged to deliver affordable, sustainable
infrastructure and surface-water management.
This session explores critical interventions that
can be achieved with limited resource and shares
the experiences of landscape architects working
in regions desperate for help.
c. Best Practices and regional application differences.
d. Opportunities and tools of a holistic approach for specific issues.
II. Hydrology and hydraulics
a. Hydrologic cycle: time lag and peak discharge
b. Identifying local hydrology patterns and preserv
features.
c. Stormwater paradigms: run it in the ditches/ in the pipes
d. Setting hydrological models and target interventions.
e. LID: Low Impact Development
f. Integrated Management Practice (IMP) technologies
g. Decentralized systems and sizing methods.
h. Manipulating velocity and capacity through site grading.
i. Designing for robust performance.
III. Working with the local community: Leveraging local resources
a. Material selection and alternatives.
b. Support local ecological communities.
c. Cost-effect evaluation.
d. Local practice and community involvement.
e. Environmental and social impacts.
IV. Design as a dynamic process
a. Site observations and literature review:
b. System flexibility and post-construction
feedbacks.
c. Working with conflicting values, such as efficiency versus diversity.
V. Case Studies from different hydrological contexts
a. Ningbo Eco-corridor: A disconnected water network is retro
to be an urban filter for treating surface runoff, as well as providing
human amenity and bio-diversity.
b. Wusong Riverfront Pilot Project: A water treatment system
becomes the central organizing structure of the site
the cleaned water in return increases development value
c. Raycom City Rain Gardens: With careful
gardens replace storm pipes and become the green infrastructure
of a new development.
d. La Parguera: Vernacular green infrastructure as coastal habitat
conservation and urban revitalization
e. Shunde Waterfront: Stormwater urban form defined by the flow
waterfront ecology + parkscape
VI. Roles and challenges for landscape
developing regions.
a. Design process as catalyst, not authority.
b. Facilitating dialogue between local stakeholders.
c. Who’s green future? Strategic plan in fostering stewardship
regional application differences.
Opportunities and tools of a holistic approach for specific issues.
Hydrologic cycle: time lag and peak discharge
local hydrology patterns and preserving vernacular
water paradigms: run it in the ditches/ in the pipes
Setting hydrological models and target interventions.
Integrated Management Practice (IMP) technologies
and sizing methods.
Manipulating velocity and capacity through site grading.
for robust performance.
Working with the local community: Leveraging local resources
Material selection and alternatives.
ommunities.
Local practice and community involvement.
Environmental and social impacts.
Site observations and literature review: Knowing what you need.
construction monitoring for design
such as efficiency versus diversity.
Case Studies from different hydrological contexts
A disconnected water network is retro-fitted
urface runoff, as well as providing
diversity.
water treatment system
becomes the central organizing structure of the site planning, and
the cleaned water in return increases development value.
With careful site grading, a series of rain
gardens replace storm pipes and become the green infrastructure
Vernacular green infrastructure as coastal habitat
conservation and urban revitalization strategy
urban form defined by the flow +
andscape architects working in
Design process as catalyst, not authority.
local stakeholders.
Who’s green future? Strategic plan in fostering stewardship.
SPEAKER BIOS
Chih-Wei G.V. Chang
SWA Group Sausalito office. His focus has been the integration
urbanizing areas. His practice includes preservation of vernacular agriculture pattern,
retrofitting soft infrastructure, and installations of treatment wetlands for new development.
Mr. Chang lectured in universities and l
awarded IFLA-UNESCO educational program, ASLA professional award in analysis and
planning. Several of his pilot initiatives received public grants from Chinese regional clean
water act.
Mark Merkelbach directs international projects at Herrera, a civil engineering/ environmental
science firm. He is a civil engineer and certified professional wetland scientist with eleven
years of experience in ecological restoration design, low
sustainability analysis and planning. His team’s work includes: wetland and coastal restoration;
urban habitat design; low impact development and water treatment systems located in Asia,
Caribbean, and South America. These projects integrate the h
to create a landscape governed by ecological processes.
José Juan Terrasa
and landscape architecture from Michigan, Yale, and Harvard, respectively. H
years of professional experience and is a founding faculty member of the Graduate Program in
Landscape Architecture at the Polytechnic University of Puerto Rico, in San Juan, where he
teaches design studios and courses on environmental system
theory. Prof. Terrasa
writing, has focused on fluvial systems, landscape change, and the adaptation to the tropics of
green infrastructure strategies. He i
Architects, in San Juan, Puerto Rico.
Chang, ASLA, RLA, LEED AP, is an environmental designer and an Associate at
SWA Group Sausalito office. His focus has been the integration of ecological solutions in fast
urbanizing areas. His practice includes preservation of vernacular agriculture pattern,
retrofitting soft infrastructure, and installations of treatment wetlands for new development.
Mr. Chang lectured in universities and lead workshops in local design institutes. His works were
UNESCO educational program, ASLA professional award in analysis and
planning. Several of his pilot initiatives received public grants from Chinese regional clean
directs international projects at Herrera, a civil engineering/ environmental
science firm. He is a civil engineer and certified professional wetland scientist with eleven
years of experience in ecological restoration design, low-impact development, and
sustainability analysis and planning. His team’s work includes: wetland and coastal restoration;
urban habitat design; low impact development and water treatment systems located in Asia,
Caribbean, and South America. These projects integrate the human and natural environments
to create a landscape governed by ecological processes.
Juan Terrasa-Soler, ASLA, holds advanced degrees in ecology, environmental studies,
and landscape architecture from Michigan, Yale, and Harvard, respectively. H
years of professional experience and is a founding faculty member of the Graduate Program in
Landscape Architecture at the Polytechnic University of Puerto Rico, in San Juan, where he
teaches design studios and courses on environmental systems and landscape architectural
theory. Prof. Terrasa-Soler's professional work as a consultant, as well as his research and
writing, has focused on fluvial systems, landscape change, and the adaptation to the tropics of
green infrastructure strategies. He is also Designer at The Office of Marvel & Marchand
Architects, in San Juan, Puerto Rico.
, ASLA, RLA, LEED AP, is an environmental designer and an Associate at
of ecological solutions in fast
urbanizing areas. His practice includes preservation of vernacular agriculture pattern,
retrofitting soft infrastructure, and installations of treatment wetlands for new development.
ead workshops in local design institutes. His works were
UNESCO educational program, ASLA professional award in analysis and
planning. Several of his pilot initiatives received public grants from Chinese regional clean
directs international projects at Herrera, a civil engineering/ environmental
science firm. He is a civil engineer and certified professional wetland scientist with eleven
ent, and
sustainability analysis and planning. His team’s work includes: wetland and coastal restoration;
urban habitat design; low impact development and water treatment systems located in Asia,
uman and natural environments
, ASLA, holds advanced degrees in ecology, environmental studies,
and landscape architecture from Michigan, Yale, and Harvard, respectively. He has over 18
years of professional experience and is a founding faculty member of the Graduate Program in
Landscape Architecture at the Polytechnic University of Puerto Rico, in San Juan, where he
s and landscape architectural
Soler's professional work as a consultant, as well as his research and
writing, has focused on fluvial systems, landscape change, and the adaptation to the tropics of
s also Designer at The Office of Marvel & Marchand