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[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.

APPROPRIATE INTERVENTIONS IN MAKING ......1. Learn fundamental hydrology and hydraulics principles for holistic stormwater management in diverse site contexts. 2. Understand remediation

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Page 1: APPROPRIATE INTERVENTIONS IN MAKING ......1. Learn fundamental hydrology and hydraulics principles for holistic stormwater management in diverse site contexts. 2. Understand remediation

[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.

Page 2: APPROPRIATE INTERVENTIONS IN MAKING ......1. Learn fundamental hydrology and hydraulics principles for holistic stormwater management in diverse site contexts. 2. Understand remediation

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.

Page 3: APPROPRIATE INTERVENTIONS IN MAKING ......1. Learn fundamental hydrology and hydraulics principles for holistic stormwater management in diverse site contexts. 2. Understand remediation

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