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GREEN INFRASTRUCTURE

GREEN INFRASTRUCTURE. By: Derek Cotroneo. INTRODUCTION. What is Green Infrastructure? Types of Green Infrastructure Benefits: Environmental, Social, Economic Examples of Cities Feasibility for Bridgeport. What is Green Infrastructure?.

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GREEN INFRASTRUCTURE

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  1. GREEN INFRASTRUCTURE By: Derek Cotroneo

  2. INTRODUCTION • What is Green Infrastructure? • Types of Green Infrastructure • Benefits: Environmental, Social, Economic • Examples of Cities • Feasibility for Bridgeport

  3. What is Green Infrastructure? • Uses vegetation, soils, and natural processes to manage water and create healthier urban environments. • Scale of a city- patchwork of natural areas that provides habitat, flood protection, cleaner air, and cleaner water. • Scale of neighborhood or site- refers to stormwater management systems that mimic nature by soaking up and storing water.

  4. TYPES OF GREEN INFRASTRUCTURE • RAINWATER HARVESTING -Accumulation and deposition of rainwater for re-use on site, rather than allowing it to run-off. -Re-use water for garden, irrigation, domestic use with proper treatment, and indoor heating - Harvesting tank catches water from roof of buildings- can also be built into ground for larger tanks

  5. TYPES OF GREEN INFRASTRUCTURE • GREEN ROOFS -Roof completely or partially covered in vegetation, a growing medium, planted over a waterproof membrane. • Intensive roofs are thick, with a minimum depth of 12.8cm. Heavy, more maintenance. • Extensive roofs are shallow, ranging from 2cm-12.7cm. Lighter, less maintenance.

  6. TYPES OF GREEN INFRASTRUCTURE • RAIN GARDENS -Planted depression/hole that allows rainwater runoff the opportunity to be absorbed. -Native plants are recommended because they are most tolerant of the local climate, soil, and water conditions.

  7. TYPES OF GREEN INFRASTRUCTURE • BIOSWALES -Drainage course with sloped sides filled with vegetation or compost. -Water flow path designed to maximize the amount of time water spent in the swale. -Depending on area can have a meandering or almost straight channel alignment.

  8. TYPES OF GREEN INFRASTRUCTURE • PERMEABLE PAVEMENT -Allows for the movement of stormwater through the surface. -Longer pavement life and reduced maintenance cost

  9. TYPES OF GREEN INFRASTRUCTURE • TREE PLANTING -Line streets/areas with trees where possible. -Low cost, easy to do

  10. ENVIRONMENTAL • Reduction in stormwater runoff • Improved air and water quality • Mitigate heat island effect • Habitats for biodiversity

  11. SOCIAL • Increased aesthetics • Pleasurable views increase mental health and worker productivity (Clements et. al 4) • Trees make city dwellers happier, healthier, and more connected to their community. Green spaces and community gardens help people deal with stresses of urban life (Nature: Stress and the city: Urban decay)

  12. ECONOMIC • Site example: Philadelphia Apartment Building Green Roof- $10/sqft extensive $25/sqft intensive Rain Garden- $3-5/sqft

  13. GREEN INFRASTRUCTURE IN OTHER CITIES • PHILADELPHIA, PA • StormwaterManagement Incentives Program (SMIP)- provides storm water grants directly to non-residential property owners who want to construct storm water retrofit projects. • Greened Acre Retrofit Program (GARP)- provides storm water grants to contractors and companies who can build large-scale storm water retrofit projects across multiple properties.

  14. PHILADELPHIA

  15. GREEN INFRASTRUCTURE IN OTHER CITIES • LANCASTER, PA • In 2011, the city of Lancaster, Pennsylvania released a comprehensive Green Infrastructure Plan (GI Plan) • $77 million if GI integrated into planned improvement projects • $141 million if GI were implemented as stand alone projects.

  16. FEASABILITY FOR BRIDGEPORT • Combined sewer system-designed to collect rainwater runoff, domestic sewage, and industrial wastewater in the same pipe. • During periods of heavy rainfall or snowmelt, however, the wastewater volume can exceed the capacity of the sewer system or treatment plant. • CSS’s are designed to overflow occasionally and discharge excess wastewater directly to nearby streams, rivers, or other water bodies.

  17. FEASABILITY FOR BRIDGEPORT • Improve water quality of the Long Island Sound • Reduce amount of water needed for water treatment plant- largest carbon emitter in city • Reduce heat related illnesses- “Higher summer temperatures induce greater number of heat related illnesses and deaths” (BGreen 2020) • Jobs- Already permeable pavement company, also opportunity for landscaping and construction jobs • Community Projects- Rain gardens, tree planting

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