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GREEN INFRASTRUCTURE

Presented By:Katherine E. Childers, PE

Project ManagerMarch 10, 2017

What Is Green Infrastructure (GI)? Definition

A stormwater management practice to: Intercept runoff at the source; Infiltrate a portion of it into the

ground; Evaporate a portion of it into

the air and in some cases; Reduce runoff through reuse; or Release a portion of it slowly

back into the sewer system. Result:

Sustainable and resilient infrastructure

Generates economic benefits

15-89% cost savings (EPA Study)

Green Infrastructure Cycle

Source: Rutgers University Green Infrastructure Guidance Manual

What Is GI? (Continued) Public and Private

Developments Triple Bottom Line Benefits

Environmental Social Economic

Rain Garden

Tree Filter Box

Bioswale

Stormwater Planter

Source: Rutgers University Green Infrastructure Guidance Manual

Economic Benefits of GI Reduction in Combined-Sewer Overflows MS4 Compliance Reduction in Flooding

25% of flood claims due to nuisance urban flooding (FEMA)

1 impervious acre = 1 million gallons of runoff per year Average of 12.1% impervious surfaces in NJ 1” rainfall results in 18.3 billion gallons of stormwater

Enough to fill up MetLife Stadium 38 times! Cost Savings of $150 Annually per

Household (2005 USDA Study) Conserve Energy

13% of US Energy consumption is used to move, treat and transport water

Property Value Impact 10% increase in property values 7% increase in commercial office rents 5% increase in apartment rents

(Source: 2016 SBN & GSI Partners ESI Report)

Impervious Cover in New Jersey

Source: Rutgers University Green Infrastructure

Guidance Manual

The Navy Yard - Case Study

Central Green District

Source: The Navy Yard 2013 Master Plan Update

Green Street (Rouse Boulevard)

Rain Gardens

The Navy Yard - Case Study (Continued)

Source: Halkin Mason Photography

Source: Halkin Mason Photography

Central Green

Bioretention Basin &Porous

Pavement

Hudson Tea Building E - Case Study

Source: DeWitt Tishman Architects, LLP

Hudson Tea Building E - Case Study(Continued)

Source: Filterra Bioretention Systems

Rain Garden Under Construction

On-Site Green Roof Rain Garden Porous Pavers

Public ROW Tree Filter

Boxes (Filterra)

Porous Pavers

Columbia Field - Case Study

Before After

Columbia Field - Case Study(Continued)

Dual 4’ diameter

perforated HDPE pipes

in 6’ deep stone

infiltration beds

Subsurface

Infiltration

Basin

All American Assisted Living - Case Study

GI Practices Bio-Infiltration

Basins Swales Amended Soils Vegetation

Source: EGA Architects

Green Infrastructure Websitesh t t p : / / w w w. n j . g o v / d e p / g i / h t t p : / / w w w. n j s t o r m w a t e r. o r g / t r e a t m e n t . h t m l h t t p : / / w w w. n j f u t u r e . o r g / i s s u e s / e n v i r o n m e n t - a n d -a g r i c u l t u r e / w a t e r - s e w e r / g r e e n - i n f r a s t r u c t u r e / h t t p : / / n j a e s . r u t g e r s . e d u / p u b s / f s 1 1 9 7 / i n t r o - t o -g r e e n - i n f r a s t r u c t u r e . a s p h t t p : / / w w w. n j s t o r m w a t e r. o r g / b m p _ m a n u a l 2 . h t m

QUESTIONS?Kather ine E . Chi lders , PE215-254-7784kchi lders@pennoni .com

Source: New Jersey Department of Environmental Protection