Stadium District Stormwater Improvement Plan: Green Alternative

Stadium District

Stormwater Improvement Plan Green Alternative

Philadelphia Water Department

Stadium District

Stormwater Improvement Plan Green Alternative

Philadelphia Water Department Prepared by WRT with F.X. Browne, Portfolio Associates, Inc., and Rodriguez Consulting May 2014

iv

Stadium District Stormwater Improvement Plan – Green Alternative

Table of Contents Introduction_________________________________1 Existing Conditions___________________________5 Stakeholder Involvement_____________________19 Stormwater Management Practices___________25 Stormwater Management Approach___________33 Cost Summary_______________________________48 Next Steps___________________________________53

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Stadium District Stormwater Improvement Plan – Green Alternative

Introduction

SNYDER AVE

SNYDER AVE

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§ ¦ ¨

76

95

V U

SOUTH PHILADELPHIA

611

AVE OREGON AVE

NG

AVE

§ ¦ ¨ 76

V U

V U

291

611

STADIUM DISTRICT

Citizens Bank Park XFINITY Live!

FDR Park

§ ¦ ¨ 76

PACKER AVE

BROAD ST

YAM MO

I ENS

Lincoln Financial Field

§ ¦ ¨ 95

Wells Fargo Center

Southeast Wastewater Treatment Plant

PATTISON AVE

CSX TRANSPORTATION SOUTH PHILADELPHIA YARD

LVANIA NE W JE R SE Y

ATLANTIC REFINING

OREGON AVE

Marconi Plaza

P E NN SY

UNK

COLUMBUS BLVD

Y PASS

S c hu

ylk i ll R

i ve r Philadelphia Navy Yard

§ ¦ ¨ 95

THE NAVY YARD

Delaware River Context Stormwater Planning District - Stadium Complex Stadium Complext Stormwater Planning District Boundary Parkland Miles 0

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Stadium District Stormwater Improvement Plan – Green Alternative

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1

Introduction Green City, Clean Waters is the Philadelphia Water Department’s (PWD) 25-year plan for protecting and enhancing the city’s watersheds by managing stormwater with green infrastructure. As a part of the plan, PWD is developing Stormwater Improvement Plans for sub-areas of the city, called Stormwater Planning Districts (SPDs), including the Stadium District.

Through the SPD planning process, potential stormwater management projects (SMPs) were identified for the Stadium District to help the Philadelphia Water Department meet environmental, economic, and community goals using green stormwater infrastructure. This Stormwater Improvement Plan focuses on the green approach to stormwater management for the Stadium District.

The Stadium District is a highly visible gateway positioned between the Navy Yard and numerous South Philadelphia neighborhoods. Three large sports and entertainment venues make up the core of the SPD: Lincoln Financial Field, Citizens Bank Park, and the Wells Fargo Center. These facilities are surrounded by large areas of surface parking, some of which is owned by the City of Philadelphia.

This area was selected as an SPD for its large impervious area, the large number of parcels under public ownership, customer interest in stormwater bill credits, high visibility partnership opportunities, and significant stakeholder interest.

Introduction

1

2

Stadium District Stormwater Improvement Plan – Green Alternative

Existing Conditions

SYDENHAM ST

10

20

20

20

20

10

10

10

HULSEMAN ST

10

0

30

10

HARTRANFT ST

10

HARTRANFT ST

10

20

30

30

10

20

10

SYDENHAM ST

10

FRONT ST

10 10

20

3RD ST

LAWRENCE ST

7TH ST

20

20

BROAD ST

LEYTE PL

10 10

GEARY ST

§ ¦ ¨ 0

10

95

-10

10

10

10

11TH ST

20

20

DARIEN ST

10

10

10

10

10

10 0 10

GALLOWAY ST

LAWRNECE ST

10

3RD ST

10

PATTISON AVE 10

10

10 10

20

611

10

611

10

VU U V 10

FDR Park

0

Environmental Conditions Stormwater Planning District - Stadium Complex

20

BROAD ST

BROAD ST

ARE E DELAW

XP

Generalized Drainage Flow

Land Cover Topography

Travelway Rooftop Impervious

2’ Contours

Ground Level Impervious

10’ Contours

Grass/Shrub

FEMA 500-Year Floodplain

10

CHAUCER ST

10

10

20

CURTIN ST FORRESTAL ST

10

DARIEN ST

10TH ST

20

V U 611

§ ¦ ¨ 76

10

13TH ST

JUNIPER ST

PACKER AVE

GALLOWAY ST

15TH ST

76

20

10

16TH ST

10

20 EXP SCHUYLKILL

§ ¦ ¨

30

§ ¦ ¨

Tree Cover

95

30

0

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Stadium District Stormwater Improvement Plan – Green Alternative

250

500

SPD Boundary Feet 1000

Environmental Conditions Ground cover and surface water flow provide an understanding of where the impervious surfaces are in the Stadium District and where the most viable locations are for capturing the most stormwater.

Land Cover Largely characterized by the city’s three major sport venues, transportation, and industrial uses, land cover in the Stadium District can be classified into four major categories: travelway, rooftop impervious, ground level impervious, and pervious.

Ground level impervious surfaces represent the largest land cover category and include sidewalks, parking, and concrete pads. Four major parking lots owned by the City of Philadelphia around the stadiums account for 130 acres of this impervious area. Pervious ground cover includes lawn, roadway median plantings, and bare earth.

Drainage Patterns Within the Stadium District, stormwater generally drains to the southeast (towards the 500-year floodplain). At a micro-scale, stormwater is directed to nearby inlets.

Floodplain While the Stadium District is outside the 100-year floodplain, the eastern portion of the Stadium District falls within the 500-year floodplain. The 500-year floodplain is an area of moderate flood hazard where annually there is a 0.2% chance of shallow flooding with average depths of less than one foot.

Existing Conditions

5

SCHUYLKILL EXP

§ ¦ ¨ 76

§ ¦ ¨

FRONT ST

3RD ST

-5

GEARY ST

PACKER AVE

GALLOWAY ST

0

LEYTE PL

FORRESTAL ST

LAWRENCE ST

7TH ST

BROAD ST

CURTIN ST

DARIEN ST

611

10TH ST

V U

13TH ST

JUNIPER ST

76

PACKER AVE

-5

SYDENHAM ST

CHAUCER ST

HULSEMAN ST

HARTRANFT ST

HARTRANFT ST

§ ¦ ¨ 95

DARIEN ST

PATTISON AVE

11TH ST

Citizens Bank Park Stadium

VU U V

FDR Park

BROAD ST

611

611

Well Fargo Center

Lincoln Financial Field 0

Water Table and Bedrock Elevations Stormwater Planning District - Stadium Complex ARE E DELAW

-5

XP

0

§ ¦ ¨ 95

-5

6

Stadium District Stormwater Improvement Plan – Green Alternative

-5

Water-Table Elevation1 0’ -5’

1 Water-Table Map of Philadelphia, PA, 1976-1980. Gary N. Paulachok and Charles R. Wood, 1984.

Bedrock Elevation2 -100’ to -120‘ -120’ to -140‘ -140’ to -160’ -160’ to -180’ -180’ to -200’

2 Ground-Water Resources of the Coast Plain Area of Southeastern Pennsylvania.

Commonwealth of Pennsylvania Department of Internal Affairs, 1961.

National Geodetic Vertical Datum of 1929 0

250

500

Feet 1000

Water Table Historically a marshy area, the water table below the Stadium District is relatively high. At elevations of 0' to -5', the water table is generally about 10' to 15' below ground level. Infiltration is infeasible in areas such as Citizens Bank Park where elevations are too close to groundwater. At Citizens Bank Park and Lincoln Financial Field, groundwater is pumped away to prevent ponding (City of Philadelphia 2013).

Geotechnics The Stadium District was once site to an incinerator and previously a marshy area used as a trash dump. Soils within the Stadium District are largely urban fill at grade with layers of silt, sand, and clay below (City of Philadelphia 2013). While the permeability of fill is dependent upon the type of fill used, the layers below typically allow for rapid infiltration.

bedrock Shallow bedrock can affect infiltration, ponding depths, and the use of underground SMPs. Within the Stadium District, bedrock can be found at elevations of -100' to -180', which should not generally hinder the use of infiltration-based systems.

Existing Conditions

7

76

§ ¦ ¨

SYDENHAM ST

CHAUCER ST

HULSEMAN ST

CITY OF PHILADELPHIA

LAWRENCE STREET REALTY CO

300 PACKER AVENUE ASSOC YECKES, STEPHEN

Philadelphia Authority for Industrial Development

PHILADELPHIA ELECTRIC CO LKM FOODS INC

FOOD DISTRIBUTION CENTER

CITY OF PHILADELPHIA

Citizens Bank Park

FOOD DISTRIBUTION CENTER

PHILADELPHIA ELECTRIC CO

BDB COMPANY

PROCACCI, TERESA

PHILADELPHIA INDUSTRIAL DEVELOPMENT CORPORATION

§ ¦ ¨ 95

PROCACCI BROS, SALES CORP

PHILADELPHIA INDUSTRIAL DEVELOPMENT CORPORATION

CITY OF PHILADELPHIA

LIBERTY BEAR LLC

PROCACCI, TERESA

HARTRANFT ST

HARTRANFT ST

BDB COMPANY

FRONT ST

SYSCO PHILADELPHIA LLC

GEARY ST

GALLOWAY ST

LEYTE PL

PHILADELPHIA SUBURBAN DEVELOPMENT CORP

LAWRENCE ST

TRENT MOTEL ASSOCIATES L

BROAD ST

CURTIN ST FORRESTAL ST

PROCACCI, TERESA

PROCACCI, TERESA

7TH ST

611

DELAWARE RIVER PORT AUTHORITY

10TH ST

V U

76

13TH ST

JUNIPER ST

PACKER AVE

3RD ST

15TH ST

SYDENHAM ST

16TH ST

SCHUYLKILL EXP

§ ¦ ¨

PROCACCI BROS, SALES CORP

APCA FRONT STREET LLC

PROCACCI BROS, SALES CORP PROCACCI BROS, SALES CORP

PROCACCI BROS, SALES CORP

CITY OF PHILADELPHIA SPECTRUM AREA CORPORATION

FDR Park

BROAD ST

611

611

CITY OF PHILADELPHIA

Wells Fargo Center

CITY OF PHILADELPHIA

Philadelphia Authority for Industrial Development

Lincoln Financial Field

JMDH REAL ESTATE OF PHILADELPHIA

COMER, EDWARD

FOOD DISTRIBUTION CTR TOMMY LEVIN & & CO INC DONNA LLC BLOOMFIELD HOLDINGS MAGLIO BROTHERS INC

PHILABUNDANCE PHILABUNDANCE

PHILADELPHIA INDUSTRIAL DEVELOPMENT CORPORATION

11TH ST

VU U V

PROCACCI, JOSEPH

GALLOWAY ST

DARIEN ST

PATTISON AVE

STEIN & SILVERMAN FAMILY

GONGSHING CORP GONGSHING PROCACCI BROS CORP SALES CORPO MADICUS LLC 3680 GALLOWAY REALTY LLC

BUONO, 3655 G LLC MICHAEL

DEKAP PROPERTIES LP CONRAIL

BDB COMPANY

Public Ownership1

City of Philadelphia

Private Ownership1 XP

BDB COMPANY

INTERTRUST HOLDINGS ADVER BDB COMPANY

Ownership Stormwater Planning District - Stadium Complex Vacant Parcel1

ARE E DELAW

BDB COMPANY

Delaware River Port Authority

Large Private Landownership1

Philadelphia Authority for Industrial Development

Food Distribution Center Philadelphia Suburban Development Corporation

Philadelphia Electric Company Philadelphia Industrial Development Corporation

Procacci Bros

§ ¦ ¨ 95

Sysco

SPD Boundary 0

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Stadium District Stormwater Improvement Plan – Green Alternative

250

500

Feet 1000

1

Source: Philadelphia Water Department

Ownership The City has the greatest opportunity to effect change on its own through the transformation of publicly owned land, particularly rights-of-way. Green stormwater infrastructure implemented on private land may be done without City involvement or may be opportunities for public-private partnerships.

Approximately 62 percent of the Stadium District is publicly owned. The City of Philadelphia is the largest landowner with properties including the Wells Fargo Center, Lincoln Financial Field, Citizens Bank Park, and associated surface parking lots. Public ownership within the study area includes:

The remaining 48 percent of the district is privately owned. Private ownership ranges from the 8-acre concentration of small residential parcels in the northwestern corner to large industrial parcels to the east. Private owners with property ownership over 10 acres are: • Procacci Brothers - 33 acres • Sysco - 30 acres • Food Distribution Center - 29 acres • Philadelphia Suburban Development Corporation - 12 acres

• City of Philadelphia - 203 acres

Within the Stadium District, vacancy is low. The 13 acres of vacant land are largely

• Philadelphia Authority for Industrial Development - 32 acres

publicly owned. With the exception of a City-owned parcel, vacant parcels are small in size (under 2 acres).

• Delaware River Port Authority - 22 acres • Philadelphia Industrial Development Corporation - 16 acres • Philadelphia Electric Company - 7 acres • Rights-of-Way - 156 acres

Existing Conditions

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76

§ ¦ ¨ 7TH ST

GEARY ST

FRONT ST

Hollywood Casino Site

GALLOWAY ST

LAWRENCE ST

BROAD ST

Live! Hotel and Casino

Casino Revolution

DARIEN ST

611

10TH ST

V U

76

13TH ST

JUNIPER ST

PACKER AVE

3RD ST

15TH ST

SYDENHAM ST

16TH ST

SCHUYLKILL EXP

§ ¦ ¨

Casino Revolution HARTRANFT ST

HARTRANFT ST

§ ¦ ¨ 95

Citizens Bank Park

Proposed area for land use change: transportation/parking to mixed-use

Casino Revolution

611

LAWRENCE ST

11TH ST

611

DARIEN ST

XFINITY Live!

VU U V

GALLOWAY ST

PATTISON AVE

FDR Park

Key Planning Initiatives Stormwater Planning District-Stadium Complex

Wells Fargo Center

Lincoln Financial Field

§ ¦ ¨ 95

Philadelphia Casino Applicant Sites1

ARE E DELAW

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Philadelphia 20352 Proposed Areas for Land Use Change Future Mixed-Use TOD Proposed Street Network XFinity Live! Long-Term Vision2 XFinity Live! Phase II Mixed Use Residential 1

Philadelphia Gaming Control Board, 2012

Lower South District Plan. Philadelphia Planning Commission, 2012 Philadelphia Planning Commission, 2013

0

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Stadium District Stormwater Improvement Plan – Green Alternative

Existing Building Use3 Commercial Culture and Recreation Industrial Residential Transportation

2

3

250

500

Existing Land Use3 ROW Open Space Park Parking Vacant

Feet 1000

SPD Boundary

Key Planning Initiatives The following key planning initiatives will impact the Stadium District. A summary of recommendations from these initiatives and their time frames, likelihood of implementation, and implementers is provided in an appendix.

• Philadelphia 2035. The city’s comprehensive plan identifies the Lower South District, which includes the Stadium District, as an area expected to experience population and employment growth. It recommends land use changes to create transit-oriented, mixed-use development around XFINITY Live! and Citizens Bank Park.

• Philadelphia Pedestrian and Bicycle Plan. The first citywide pedestrian plan and update to the 2000 citywide Bicycle Network Plan identifies strategies and specific recommendations to increase the number of people walking and bicycling in the city by improving the safety, connectivity, convenience, and attractiveness of the pedestrian and bicycle networks.

• XFINITY Live! Long-Term Vision. Opened in the spring 2012, the first phase of XFINITY Live! includes a restaurant, shopping complex, and music performance space. Full development of XFINITY Live! will include approximately 350,000 square feet of shops, entertainment, restaurants, and a 300-room hotel. This development will establish the Stadium District as a non-event day and evening destination.

• Casino Applications. The Pennsylvania Gaming Control Board has received six applications for Philadelphia’s second casino license and within the next year will evaluate each application. Three of the six applicants’ sites are located within the Stadium District, including: • Casino Revolution – PHL Local Gaming, LLC • Hollywood Casino Philadelphia – PA Gaming Ventures, LLC • Live! Hotel and Casino – Stadium Casino, LLC

• Green2015. The Green2015 initiative outlines a strategy for meeting the city’s goal of adding 500 acres of new publicly accessible green space to the city by 2015.

• Industrial Land and Market Strategy. The Philadelphia Industrial Development Corporation sponsored this study with the goals of expanding and retaining industry in the city, protecting the employment opportunities and tax revenues generated by the sector, and rationalizing the city’s supply of industrially-zoned land to meet the projected needs of Philadelphia businesses.

Existing Conditions

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76

§ ¦ ¨ 7TH ST

GEARY ST

FRONT ST

GALLOWAY ST

LAWRENCE ST

BROAD ST

Corrective Zoning RM-1 to RSA-5 (Residential Mixed-Use)

DARIEN ST

611

10TH ST

V U

76

13TH ST

JUNIPER ST

PACKER AVE

3RD ST

15TH ST

SYDENHAM ST

16TH ST

SCHUYLKILL EXP

§ ¦ ¨

Corrective Zoning CMX-2 to SP-STA (Sports Stadium [Special Purpose] District HARTRANFT ST

HARTRANFT ST

§ ¦ ¨ 95

Citizens Bank Park

Zoning Code Language Changes: Codify appropriate lease agreement controls; Modify if necessary to ensure future develop is consistent with the sports complex operators, community, and city's vision of the district

611

LAWRENCE ST

11TH ST

611

DARIEN ST

XFINITY Live!

VU U V

GALLOWAY ST

PATTISON AVE

Wells Fargo Center

Lincoln Financial Field

Zoning Stormwater Planning District - Stadium Complex Existing Zoning1

ARE E DELAW

XP

Proposed Zoning Changes2

Residential Multi-Family (RM-1)

Zoning Code Language Change

Neighborhood Commercial (CMX-2)

Corrective Zoning

Community Commercial Mixed-Use (CMX-3) SPD Boundary

Medium Industrial (I-2)

§ ¦ ¨ 95

Heavy Industrial (I-3) Parks and Open Space (Special Purpose) District - Active (SP-PO-A) Sports Stadium (Special Purpose) District (SP-STA)

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Stadium District Stormwater Improvement Plan – Green Alternative

1

Philadelphia Planning Commission, 2013

2

Lower South District Plan. Philadelphia Planning Commission, 2012

Feet 0

250

500

1000

Zoning Since zoning prescribes land uses in the Stadium District, it can shed light on the compatibility of green stormwater infrastructure with allowable uses.

Approximately 91 percent of land in the Stadium District is zoned industrial (I-2 and I-3) or sports stadium district (SP-STA). The remaining 9 percent is zoned commercial mixed-use (CMX-2 and CMX-3), residential (RM-1), or parks and open space (SP-PO-A). Philadelphia 2035 recommends zoning code changes for three areas within the Stadium District.

The sports stadium district (SP-STA) is a special purpose district that allows for controlled, phased development. Its purpose is to accommodate large scale, specialized sporting facilities, associated large capacity automobile parking areas, and related uses and facilities, while promoting high quality design of those facilities and mitigating any related adverse impacts on surrounding areas of the city. Philadelphia 2035 recommends changing the zoning code to codify appropriate lease agreement controls and ensure future development is consistent with the sports complex operators’, community’s, and City’s visions of the district.

vibration, after hours activities, or traffic impacts well beyond property lines. The heavy industrial district (I-3) accommodates more intensive, high-impact uses that generate high levels of noise, odor, or vibration.

The residential multi-family district (RM-1) in the northwest corner of the Stadium District is intended to accommodate moderate density, multi-unit residential buildings. Philadelphia 2035 recommends corrective zoning for this area to residential single-family attached (RSA-5). Adjacent to this are neighborhood commercial mixed-use districts (CMX-2) that are intended to accommodate neighborhood-serving retail and service uses. Philadelphia 2035 recommends corrective zoning for area to the south of the residential neighborhood to the sport stadium district (SP-STA).

The community commercial zone (CMX-3) is intended to accommodate communityand region-serving retail and service uses. The range of allowed uses is broader than in the neighborhood commercial mixed-use (CMX-2).

The medium industrial district (I-2) accommodates light industrial uses, moderateimpact uses, and employment activities such as manufacturing, distribution, processing, industrial parks, and other activities that may generate noise, odor,

Existing Conditions

13

SCHUYLKILL EXP

§ ¦ ¨ 76

§ ¦ ¨ 76

DARIEN ST

GV

GV

GV

E

PECO substation HARTRANFT ST

E

SYDENHAM ST

FRONT ST

LEYTE PL

E

CHAUCER ST

3RD ST

E

GV

GEARY ST HULSEMAN ST

PACKER AVE

GALLOWAY ST

GV

BROAD ST

GV

7TH ST

GV

FORRESTAL ST

LAWRENCE ST

10TH ST

611

CURTIN ST

13TH ST

JUNIPER ST

V U

PACKER AVE

HARTRANFT ST

§ ¦ ¨ 95

GV

Citizens Bank Park

E

E E E

E

E

T E

E

E

E

T

E

T

E

G

E

EMH EMH

TMH

E

T

G

PATTISON AVE

EE

solar array over parking

E

T TT E

VU U V

EMH

TMH T

T

XFINITY Live!

611

GV

E

E

DARIEN ST

E

11TH ST

E E

E

E

E E

GMH

E

EMH

611

E

EMH

G

E

E

E

G

E

E

EMH TMH

E

E

E

E

FDR Park

BROAD ST

E

Well Fargo Center

E

E

EMH

E

Lincoln Financial Field

Utilities Stormwater Planning District - Stadium Complex

GV

X ARE E DELAW EMH

T T

T

T

E

E

Phone Line1

EMH

G

P

PECO Line PECO Structure

EMH

T

§ ¦ ¨ 95

V

Cable TV Line Cable TV Trench

Electric1

T E

Cable TV1

SEPTA Utilities1

E

Natural Gas

Area where Detailed Utility Information is Available

1

Natural Gas Line Natural Gas Structure 0

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Stadium District Stormwater Improvement Plan – Green Alternative

SPD Boundary 1

Source: Philadelphia Water Department 250

500

Feet 1000

Utilities Siting of green stormwater infrastructure must take into account the myriad of below and above ground utilities to understand opportunities for connecting with existing infrastructure while avoiding other infrastructure.

Utility locations were compiled and digitized for previous redevelopment projects in the Stadium District. Utility information was not digitized for the residential area in the district’s northwest corner and the industrial sites east of the stadiums.

The Stadium District is currently served by a combined sewer system with pipes carrying sanitary wastewater along with stormwater. During dry conditions, sewer flow is treated at the Southeast Wastewater Treatment Plant, located just to the east of the District across I-95. During storm events, water may flow without treatment directly into the Delaware River (City of Philadelphia 2012a).

Electricity for Lincoln Financial Field is provided by NRG Solutions, who installed, owns, maintains, and operates the facility’s solar panel and wind turbine systems.

Lincoln Financial Field currently has more than 11,000 solar panels positioned on the stadium roof, over parking spaces, and on the side of the stadium facing I-95.

There are also 14 wind turbines installed atop the stadium. The systems generate about six times the power used during all Eagles home games.

Water and sewer pipes are generally located within street rights of way. Sewer shapes and sizes vary, ranging from round, 18-inch diameter pipes to 6-foot square pipes. More detailed information about the sewers in the Stadium District can be found in the Stadium District Stormwater Management Enhancement Project Existing Conditions Narrative and Feasibility Study (City of Philadelphia 2013). This document describes the size and direction of flow for sewers along:

Just north of Citizens Bank Park at the northeast corner of 10th and Hartranft Streets is a PECO substation that occupies a 1.3-acre site.

• Packer Avenue (west) • Packer Avenue (east) • Pattison Avenue • Broad Street • 11th Street • Darien Street

Existing Conditions

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Stadium District Stormwater Improvement Plan – Green Alternative

Stakeholder Involvement

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Stadium District Stormwater Improvement Plan – Green Alternative

Stakeholder Involvement Strategy The stakeholder outreach strategy for the Stadium District included coordination with four groups of stakeholders: city departments and public agencies; large landowners and partner organizations; other private landowners and tenants and civic groups; and high profile landowners and tenants.

City Departments and Public Agencies. The following city departments and public agencies were identified as stakeholders to ensure coordination and identify mutual benefits.

Large Landowners and Partner Organizations. The following large landowners/ tenants and partner organizations were identified as stakeholders to ensure coordination with private development projects and identify partnership opportunities.

• JETRO Cash & Carry • Philadelphia Convention and Visitors Bureau • Holiday Inn Philadelphia Stadium

• Philadelphia Water Department (PWD)

• South Philadelphia Turf Club

• Mayor’s Office of Sustainability (MOS)

• SYSCO Philadelphia LLC

• Philadelphia City Planning Commission (PCPC)

• Philadelphia Regional Produce Market

• Philadelphia Industrial Development Corporation (PIDC)

• Procacci Brothers Sales Corporation

• Mayor’s Office of Transportation and Utilities (MOTU)

• Philabundance

• Philadelphia Department of Streets (Streets)

• Samuels and Son Seafood

• Southeastern Pennsylvania Transportation Authority (SEPTA)

• Tristate Intermodal, Inc.

• Philadelphia Department of Parks and Recreation (PPR)

• Delaware River Port Authority (DRPA)

• Pennsylvania Department Of Transportation (PennDOT)

• Greater Philadelphia Chamber of Commerce

• Deputy Mayor of Economic Opportunity

• Pennsylvania Horticultural Society

• Delaware Valley Regional Planning Commission (DVRPC) • Philadelphia Parking Authority (PPA) • Philadelphia Department of Public Property (Public Property)

Other Private Landowners and Tenants and Civic Groups. The following landowners and civic groups were identified as stakeholders to be targeted for informational outreach by PWD’s Public Affairs Division.

• Philadelphia Redevelopment Authority (PRA)

• Stadium Community Council

• Philadelphia Department of Commerce (Commerce)

• South Philadelphia Communities Civic Association • Front Street Properties • Southeast District Properties

Stakeholder Involvement

19

High Profile Landowners and Tenants. Five high profile stakeholders have ownership or control of large parcels, have potential resources, and are likely to have development or site improvement plans that will affect this Stormwater Improvements Plan.

• Philadelphia Eagles/Lincoln Financial Field • Philadelphia Phillies/Citizens Bank Park • Comcast Spectacor/Wells Fargo Center/XFINITY Live!

• Novacare Complex • Sports Complex Special Services District For each of these groups, the involvement strategy was broken into two phases, with 4 goals: Phase I: Initial Contact Phase I included an “orientation” information session to introduce city departments and public agencies to the SPD projects. PWD invited participants to the orientation and ran this information session independently of the Stadium District stakeholder involvement process. Goals of Phase I: • Goal 1: Provide the stakeholders with an overview of the SPD projects.

• Goal 2: Collect information from the stakeholders about plans for their properties, to be used later in identifying potential partnership opportunities.

Telephone interviews of representatives from city departments and public agencies were conducted to discuss and find out about ongoing or planned projects that might affect the Stadium District.

20

Stadium District Stormwater Improvement Plan – Green Alternative

Phase II: Follow-Up Phase II will include follow up with additional phone calls or emails to city departments and public agencies to present the green stormwater infrastructure plan for the district. During Phase II, PWD will coordinate with the Mayor’s Office of Sustainability to draft partnership agreements and make implementation requests of these stakeholders. Goals of Phase II: • Goal 3: Inform stakeholders of the preferred green stormwater infrastructure plan for the Stadium District.

• Goal 4: Identify and initiate implementation partnerships with stakeholders.

SPD Overview

Large Landowners and Partner Organizations

SPD orientation (run by PWD)

Other Private Landowners and Tenants and Civic Groups

Data Collection

phone interviews

Presentation of GSI Plan

phone/email

as necessary (by PWD and MOS)

High Profile Landowners and Tenants

fact sheet phone interviews

Implementation Requests

Phase II: Follow-Up

Phase I: Initial Contact

City Departments and Agencies

in-person meetings collect e-mail responses to fact sheet

phone/email

fact sheet in-person meetings (coordinated with PWD and MOS)

as necessary (by PWD and MOS)

as necessary (by PWD and MOS)

Stakeholder Involvement

21

Stakeholder Outreach and Involvement Summary Stakeholder interviews were conducted in-person, by phone, and by e-mail. The largest property owners and lessees were engaged though direct correspondence and in-person meetings with PWD Public Affairs. Additional Stadium District stakeholders were informed of PWD’s plans for the stormwater management program implementation by phone and e-mail.

The following table summarizes responses received from city departments and public agencies, large landowners and partner organizations, other private landowners and tenants and civic groups, and high profile landowners and tenants.

Twelve businesses and partner organizations were identified to interview. Of the twelve, two interviews were completed. The remaining ten interviewees were not responsive to multiple interview requests.

PWD Programs and Incentives

City Departments and Public Agencies

Large Landowners and Partner Organizations

Aware of Stormwater Planning District Initiatives and PWD incentives.

Not aware of Stormwater Planning District Initiatives and PWD incentives.

High Profile Landowners and Tenants

Did not receive feedback.

Aware of Stormwater Planning District Initiatives and PWD incentives.

Yes.

Not at this time.

Did not receive feedback.

Yes, stormwater site credits are not immediate priority. Interest in grants available to help reduce stormwater costs.

SPD Concerns

None.

Impacts of construction and maintenance on existing uses, particularly parking and vehicle access.

Did not receive feedback.

Impacts of construction and maintenance on existing uses, particularly parking and tailgating.

SPD Opportunities

SMPs in rights-of-ways to manage stormwater, enhance aesthetics, and support other City initiatives.

Did not receive feedback.

Trees and planters along parking lots and streets and subsurface storage that would not conflict with parking.

Interest in PWD Programs/ Partnership

22

Other Private Landowners and Tenants and Civic Groups

Stadium District Stormwater Improvement Plan – Green Alternative

None.

Stormwater Management Practices

24

Stadium District Stormwater Improvement Plan – Green Alternative

Overview As conditions vary throughout the Stadium District, no single SMP is applicable to all sites. A menu of SMPs were identified to maximize stormwater management, including:

Each of these stormwater management tools is described on the following pages.

Detailed descriptions of SMP design assumptions are included in Appendix B - SMP Assembly Unit Costs.

• Green gutters • Rain gardens • Stormwater planters • Stormwater tree trenches • Subsurface beds • Porous concrete • Storm sewer disconnection

Stormwater Management Practices

25

GREEN GUTTER Application. Green gutters with sidewalks are applicable along rights-of-way in the district where shoulders are over 10' wide and additional paved areas beyond the shoulder are used informally for parking, storage, and loading.

Design. Green gutters include restriping the streets to maintain minimum shoulder requirements. 7 foot wide strips of vegetation with 350 square yards of infiltrative stone surface separate the restriped shoulder and new sidewalk. On the cartway side of the vegetated zone, slotted curbs allow stormwater to flow into the vegetated green gutter. New sidewalks establish clear pedestrian zones.

Green Gutter

Green Gutter

Sidewalk

26

Stadium District Stormwater Improvement Plan – Green Alternative

RAIN GARDEN Application. Rain gardens are applicable in areas with large available surface areas and in high visibility/trafficked locations to enhance the aesthetic of the Stadium District and increase the visibility of stormwater improvements. Rain gardens may manage rooftops or ground-level impervious services.

Design. Three types of rain gardens are proposed throughout the Stadium District: Depth

Average Footprint

Rain Garden A

Receives surface runoff by gravity, relatively shallow depth (1–2')

3,800 sq ft

Rain Garden B

Needs storm sewer to receive flow, deeper than Type A (3–10')

3,800 sq ft

Rain Garden C

Needs walls to fit into available area and usually needs storm sewer to receive flow, typically 3–5' deep

3,800 sq ft

Subsurface beds can be used with Rain Garden Types A, B, or C. Subsurface beds are typically 12 inches deep with 755 square yards of infiltrative stone.

Stormwater Management Practices

27

STORMWATER PLANTER Application. Stormwater planters are applicable in high visibility/trafficked rightsof-way where they can enhance the aesthetic of the Stadium District and increase visibility of stormwater improvements. They are sited to maintain minimum clear walking zone widths without creating pinch points or tripping hazards.

Design. Stormwater planters are located directly behind the curb line and manage both the cartway and sidewalk via curb perforations. They vary in length but are typically 6 feet wide with 213 square yards of infiltrative stone surface. Stormwater planters would likely require utility relocation.

28

Stadium District Stormwater Improvement Plan – Green Alternative

STORMWATER TREE TRENCH Application. Stormwater tree trenches are applicable in high visibility/trafficked rights-of-way where they can enhance the aesthetic of the Stadium District and increase visibility of stormwater improvements. Stormwater tree trenches are used in rights-of-way with many utilities to minimize conflicts.

Design. Stormwater tree trenches manage stormwater from the street and sidewalk via inlets, which enable flow to the tree pit. Tree trenches are typically 6–8' wide and 150–400' long.

SUBSURFACE BED Application. Subsurface beds are applicable in areas covered almost entirely by impervious surfaces that are necessary to support existing uses and agreements, including parking spaces around the stadiums. Subsurface beds require relatively less construction-related disruption and fewer maintenance concerns than permeable pavement.

Design. Located under paved areas, subsurface beds include 755 square yards of infiltrative stone surface designed for 24 to 36 inches of storage volume.

Stormwater Management Practices

29

POROUS CONCRETE Application. Porous concrete is applicable in select areas where installation and maintenance would minimally impact existing uses or in areas of high pedestrian traffic, increasing the visibility of stormwater improvements. In these areas, there is insufficient space to use other SMPs such as rain gardens and stormwater planters.

DISCONNECT WITH NEW STORM SEWER Application. Disconnecting a drainage area and building new storm sewer is applicable in very select areas near existing separate storm sewers.

Design. Disconnecting impervious areas with new storm sewer requires new inlets, new storm sewers, and some sidewalk replacement.

30

Stadium District Stormwater Improvement Plan – Green Alternative

Stormwater Management Approach

32

Stadium District Stormwater Improvement Plan – Green Alternative

Overview Approach Green Mosaic The Green Mosaic is an assemblage of stormwater management practices that manage localized drainage areas on public and private property—together designed to manage stormwater from a majority of the district's impervious areas.

This is the baseline approach for using green stormwater infrastructure to manage stormwater in the Stadium District.

• Education: Visible stormwater management solutions provide an opportunity to educate residents and visitors about stormwater issues and best management practices.

• Comfort/Heat Island: By replacing impervious surfaces that absorb sunlight and radiate heat with vegetated surfaces that convert sunlight into chemical energy for plant growth, there is a net cooling effect that increases comfort in otherwise sweltering summer conditions.

Economic Benefits

High Impact Options Highly-visible SMPs around Broad and Pattison could supplant pieces of the Green Mosaic and have the potential to become signature projects.

Benefits Both the Green Mosaic and High Impact Options provide environmental, social, economic, and implementation benefits that go beyond the functional requirement of managing the first inch of stormwater.

Environmental Benefits • Water Quality: Rather than piping contaminated stormwater to the city’s waterways or to treatment plants that overflow into the city’s waterways, these approaches promote infiltration of stormwater, which avoids water quality impacts.

• Air Quality: Vegetated SMPs filter out air pollutants, which improves air quality.

Social Benefits

• Property Values: Enhancements to the public realm—especially the addition of vegetation—may increase adjacent property values. Enhancements to private properties can also increase property value, particularly if the enhancements lead to a reduced monthly stormwater charge.

Implementation Benefits • Phasing: Each SMP in the mosaic can be implemented independently, on its own timeline. This can minimize construction disturbance and provide more flexibility in acquiring funding.

• Benefit Accrual: Completion of all SMPs is not necessary to achieve benefits. As each SMP is installed, the benefits provided by that SMP are instantly realized.

• Partnerships/Cost Sharing: Resultant reductions in stormwater charges and increases in visibility are incentives for land owners and lessees in the Stadium District to partner and share costs with PWD and the City on the implementation of green SMPs. Without such incentives, these partnerships are not likely to be as easily achieved.

• Visibility/District Character: Many of the proposed SMPs—particularly those in areas with high pedestrian and vehicular traffic—have a surface expression.

They break up the hard, monotonous, paved landscape with softer, more visually diverse vegetation. These changes to visibility impact each employee and visitor to the Stadium District, as well as the view of the district on televised events.

The large number of visitors and viewers makes the impact of SMPs in the Stadium District greater than the impact of the same SMPs in other areas.

Stormwater Management Approach

33

SCHUYLKILL EXP

§ ¦ ¨ PACKER AVE

10TH ST

76

§ ¦ ¨ 76

V U

FRONT ST

3RD ST

7TH ST

BROAD ST

GALLOWAY ST

611

HARTRANFT ST

§ ¦ ¨ LAWRNECE ST

DARIEN ST

11TH ST

95

3RD ST

PATTISON AVE

VU U V 611

Green Mosaic Stormwater Planning District - Stadium Complex

BROAD ST

611

ARE E DELAW

§ ¦ ¨ 95

34

Stadium District Stormwater Improvement Plan – Green Alternative

XP

Areas Already Managed

Rain Garden A

Areas Managed by Future Development

Rain Garden B

Pervious

Rain Garden C

Green Gutter

Stormwater Planter

Porous Concrete

Stormwater Tree Trench

RG w/ Subsurface Bed, A

Subsurface Bed

RG w/ Subsurface Bed, B

Disconnect w/ New Storm Sewer

RG w/ Subsurface Bed, C

Areas Not Cost Effective to Manage

Green Mosaic OVERVIEW The Green Mosaic is an assemblage of stormwater management practices that manage localized drainage areas on public and private property—together designed to manage stormwater from a majority of the district's impervious areas.

This is the baseline approach for using green stormwater infrastructure to manage stormwater in the Stadium District.

SMPs in the mosaic were selected to: • balance cost effectiveness with a preference for vegetated SMPs, where feasible, to maximize visibility of stormwater management practices • manage at least the first inch of runoff • not exceed loading ratios (ratio of drainage area to footprint area) of 10:1 on public properties and 5:1 on private properties. (Rain garden loading ratios were kept as low as possible.)

• ensure existing stadium parking spaces remain

Stormwater management practices were not identified within the Stadium District for areas that are already managed, areas that will be managed by future development, or pervious areas. Areas that are already managed include Broad Street, XFINITY Live!, and the Sysco site. Areas that will be managed by future development include future phases of XFINITY Live! and the Food Distribution Center. Pervious areas include large areas of mown lawn around buildings and in road rights-of-way. The following areas were not considered as part of the Green Mosaic.

Areas Removed from Analysis

Acres Managed

Areas Already Managed

44.6

Areas Managed by Future Development

30.3

Pervious Areas

89.0 Acres Managed

163.9

• minimize storm sewer construction and regrading • minimize construction disturbance, particularly to stadium parking

Stormwater Management Approach

35

SCHUYLKILL EXP

§ ¦ ¨ PACKER AVE

76

§ ¦ ¨

PACKER AVE

76

V U

§ ¦ ¨ 76

V U 611

HARTRANFT ST

FRONT ST

3RD ST

7TH ST

BROAD ST FRONT ST

3RD ST

7TH ST

BROAD ST

GALLOWAY ST

611

GALLOWAY ST

Of the 592 acres of impervious area in the Stadium District, SMPs were identified to manage 313 acres.

SCHUYLKILL EXP

§ ¦ ¨

10TH ST

76

10TH ST

MANAGED LANDS SUMMARY

HARTRANFT ST

§ ¦ ¨

§ ¦ ¨

Cost estimates developed for the Green Mosaic are provided in the Cost Summary section.

LAWRNECE ST

DARIEN ST

11TH ST LAWRNECE ST

DARIEN ST

3RD ST

3RD ST

PATTISON AVE

VU U V

VU U V

611

611

611

BROAD ST

611

ARE EXP DELAW

§ ¦ ¨

ARE EXP DELAW

§ ¦ ¨

95

95

Public Lands Acres Managed

GA Managed

Green Gutter

15.5

20.5

Green Gutter w/Subsurface Bed

2.6

Rain Garden A

Private Lands Acres Managed

GA Managed

Green Gutter

-

-

3.3

Green Gutter w/Subsurface Bed

-

-

7.4

11.8

Rain Garden A

1.7

3.3

Rain Garden B

9.6

12.8

Rain Garden B

12.3

22.9

Rain Garden C

1.2

1.7

Rain Garden C

-

-

Rain Garden A w/Subsurface Bed

1.8

2.2

Rain Garden A w/Subsurface Bed

0.1

0.2

Rain Garden B w/Subsurface Bed

-

-

Rain Garden B w/Subsurface Bed

1.4

2.1

Rain Garden C w/Subsurface Bed

5.4

7.7

Rain Garden C w/Subsurface Bed

-

-

Porous Concrete

0.3

0.4

Porous Concrete

-

-

Sidewalk Removal

0.1

0.2

Sidewalk Removal

-

-

Stormwater Planter (w/Subsurface Bed)

6.3

7.5

Stormwater Planter (w/Subsurface Bed)

-

-

Stormwater Tree Trench (w/Subsurface Bed)

31.3

40.7

Stormwater Tree Trench (w/Subsurface Bed)

-

-

Subsurface Bed A

160.3

166.7

Subsurface Bed A

-

-

Subsurface Bed B

-

-

Subsurface Bed B

54.7

105.3

0.9

1.1

-

-

242.7

276.8

70.3

133.8

SMPs

Disconnect w/New Storm Sewer Acres / GA Managed 36

95

PATTISON AVE

BROAD ST

Initial analysis and development of SMPs identified 115 acres of impervious area that were not cost effective to manage.

These areas typically had insufficient space to achieve required loading ratios, flowed to separated sewer systems, or had major utility conflicts. Large areas considered not cost effective to manage include: Citizens Bank Park, Lincoln Financial Field, Wells Fargo Center, the residential neighborhood, and largely impervious industrial parcels.

11TH ST

95

Stadium District Stormwater Improvement Plan – Green Alternative

SMPs

Disconnect w/New Storm Sewer Acres / GA Managed

PEDESTRIAN AND BICYCLE NETWORK

Park, mass transit, employment areas, and surrounding neighborhoods, and Philadelphia’s larger network of bicycle and pedestrian facilities—making the district more desirable to both the existing workforce and businesses looking for a location with amenities to attract a skilled workforce.

In addition to maximizing stormwater management throughout the Stadium District, the Green Mosaic builds on the existing and planned non-motorized transportation network. The Green Mosaic fills sidewalk gaps in the district’s eastern industrial zone and completes the network of clearly designated pedestrian routes. This connects the district to recreational hubs such as FDR

Pedestrian and Bicycle Network Stormwater Planning District Stadium District

SCHUYLKILL EXP

§ ¦ ¨ 76

§ ¦ ¨

GEARY ST

FRONT ST

3RD ST

PACKER AVE

GALLOWAY ST

LAWRENCE ST

LEYTE PL

FORRESTAL ST

7TH ST

BROAD ST

CURTIN ST

DARIEN ST

611

10TH ST

V U

13TH ST

JUNIPER ST

76

PACKER AVE

SYDENHAM ST

CHAUCER ST

HULSEMAN ST

HARTRANFT ST

HARTRANFT ST

Existing Sidewalk Green Mosaic Sidewalk Existing Bike Lane Proposed Bike Lane Proposed Sidewalk Proposed Marked Shared Lane

§ ¦ ¨ 95

XFINITY Live!

DARIEN ST

PATTISON AVE

11TH ST

Citizens Bank Park

VU U V

FDR Park

BROAD ST

611

611

Wells Fargo Center

Lincoln Financial Field

ARE EX DELAW

P

§ ¦ ¨ 95

Stormwater Management Approach

37

SCHUYLKILL EXP

§ ¦ ¨ 76

§ ¦ ¨ 76

7TH ST

GEARY ST

Green Parking

HARTRANFT ST

FRONT ST

3RD ST

HARTRANFT ST

§ ¦ ¨ 95

Citizens Bank Park

Green Walkway

DARIEN ST

Green Gateway

XFINITY Live!

11TH ST

PATTISON AVE

VU U V 611

BROAD ST

ark

GALLOWAY ST

PACKER AVE LAWRENCE ST

BROAD ST

CURTIN ST

DARIEN ST

611

10TH ST

V U

13TH ST

JUNIPER ST

PACKER AVE

611

Wells Fargo Center

Lincoln Financial Field

High Impact Projects Stormwater Planning District - Stadium Complex ARE E DELAW

XP

Susceptibility to Change

Green Gateway Green Walkway Green Parking

§ ¦ ¨ 95

SPD Boundary 0

38

Stadium District Stormwater Improvement Plan – Green Alternative

250

500

Feet 1000

High Impact Options OVERVIEW Highly-visible SMPs around Broad and Pattison could supplant pieces of the Green Mosaic. They could engage visitors, improve major intersections and gateways to enhance the aesthetic of the Stadium District, and increase the visibility of stormwater management. They support enhancements identified in related planning initiatives and have potential to become signature projects for the district and for PWD and its partners.

High impact options explored include: • Green Gateway • Green Walkway • Green Parking The Green Mosaic and high impact options are not mutually exclusive. In many cases, multiple infrastructure improvements could be implemented to maximize greened acres and management of public and private runoff.

Stormwater Management Approach

39

Green Gateway

40

Stadium District Stormwater Improvement Plan – Green Alternative

Green Gateway For visitors arriving by mass transit or by car, the intersection of Broad Street and Pattison Avenue serves as the gateway to the Stadium District. AT&T Station has four head houses, 2 north of Pattison Avenue and 2 south of Pattison Avenue.

The headhouses are surrounded by large concrete plazas with small planters and inoperable fountains. The area presents an opportunity to implement a high impact project visible to both Stadium District visitors and through traffic along Broad Street.

The proposed undulating green roof would serve as a gateway to the Stadium District and as a large scale SMP. It would manage stormwater that currently runs off the impervious headhouse roofs and the plazas between them. By having the green roof come down near ground level between the headhouses, visitors can more easily see what a green roof looks like and how it functions. In the spaces under the green roof, as it slopes down to the ground, interpretive signage can explain PWD’s Green City, Clean Waters program, its Stormwater Planning District initiative, how green roofs function, and other aspects of stormwater management.

The arch spanning Pattison Avenue would create a clear, visible gateway to the district.

Order-of-magnitude costs for the green gateway are estimated to be about $5.2 million. This estimate is conceptual and includes a high contingency to account for unknown costs. Appendix C - High Impact Costs provides assumptions used to develop the estimate.

Stormwater Management Approach

41

Pattison Avenue Boardwalk

42

Stadium District Stormwater Improvement Plan – Green Alternative

Green Walkway From the Stadium District gateway at Broad Street and Pattison Avenue, visitors continue to the sports stadiums via Pattison Avenue. Sidewalks along Pattison Avenue range from 40 to 180 feet wide and are lined with trees. On the south side of Pattison Avenue, many of the trees exhibit signs of distress such as crown dieback and chlorosis. From Broad Street to South 11th Street, sidewalks could be replaced by an elevated walkways over large rain gardens that would manage stormwater from Pattison Avenue and stadium parking while maintaining wide sidewalks. Along the green walkway, interpretive panels could explain PWD’s Green City, Clean Waters program, its Stormwater Planning District initiative, how rain gardens function, and other aspects of stormwater management. Bumpouts along the walkway could provide additional information about the Stadium District and serve as areas for street performers and small vendors during events.

Order-of-magnitude costs for the green walkway are estimated to be about $15.5 million. This estimate is conceptual and reflects a high contingency to account for unknown costs. Appendix C - High Impact Costs provides assumptions used to develop the estimate.

Stormwater Management Approach

43

44

Stadium District Stormwater Improvement Plan – Green Alternative

Green PARKING The addition of structured parking in the southwest corner of the Phillies parking lot could allow the team to maintain (and potentially increase) the number of parking spaces while maximizing the impact of greening the parking lots to the north and west of Citizens Bank Park. By phasing construction of structured parking in parking lots where tailgating is prohibited, the high impact project would keep available the number of parking spots required by parking lease agreements throughout construction and avoid disruption to tailgating activities.

The structured parking could net an additional 1,295 spaces, allowing 1,295 surface spaces to be depaved—approximately one of five surface parking spaces removed and replaced with a vegetated SMP. Structured parking in this location supports Philadelphia 2035’s urban design framework for the Stadium District and could have a large visual impact by maximizing greening throughout the surface parking lots, changing the aesthetic of the area and making stormwater management more visible. The structured parking also provides additional convenience for commuters who currently park in the lot and take the Broad Street line.

Stormwater Management Approach

45

46

Stadium District Stormwater Improvement Plan – Green Alternative

Cost Summary

Cost Summary Green Mosaic Cost Summary

Return on Investment Analysis

The Green Mosaic cost estimate is based on unit costs developed with guidance from PWD. The unit cost assumptions are described in Appendix B - SMP Assembly Unit Costs.

Improvements at Citizens Bank Park, Lincoln Financial Field, and Wells Fargo were analyzed to determine the financial viability of the proposed green infrastructure.

The analysis made the following determinations regarding financial viability of the proposed projects:

The cost summary shows the costs PWD would incur if it were to pay the full cost for implementation of all recommended SMPs in the mosaic on both public and private properties. In addition, the summary shows the costs PWD would incur if it were to pay the full cost for implementation of all recommended SMPs on public properties and provide subsidies in the form of grants for implementation of all recommended SMPs on private properties.

• Capital and maintenance costs are high.

• Current stormwater fees are not high enough to incentivize the private implementation of green infrastructure. Under most maintenance cost assumptions, the proposed investments cost more to maintain than is generated in stormwater fee cost savings each year.

• Only near-complete assistance for capital construction and annual maintenance would make the projects financially viable given current costs and stormwater fees.

Although the projects were not found to be financially viable, reduced stormwater fees are not the only benefit owners may accrue by implementing green infrastructure. The public relations benefit of a "green image" may exceed the costs of green infrastructure investments.

48

Stadium District Stormwater Improvement Plan – Green Alternative

SMPs

Public and Private Acres Managed

Cost per Acre Managed

Greened Acres (GA) Managed

Cost per Greened Acre Managed

Acres Managed

Cost per Acre Managed

Greened Acres (GA) Managed

Cost per Greened Acre Managed

Green Gutter

15.5

$283,237

20.5

$213,638

15.5

$283,237

20.5

$213,638

Green Gutter w/Subsurface Bed

2.6

$280,360

3.3

$218,725

2.6

$280,360

3.3

$218,725

Rain Garden A

9.1

$109,614

15.1

$66,103

7.4

$107,077

11.8

$67,148

Rain Garden B

21.9

$191,790

35.7

$117,743

9.6

$131,746

12.8

$98,789

Rain Garden C

1.2

$357,275

1.7

$248,108

1.2

$357,275

1.7

$248,108

Rain Garden A w/Subsurface Bed

1.9

$152,177

2.4

$122,420

1.8

$148,309

2.2

$123,591

Rain Garden B w/Subsurface Bed

1.4

$145,481

2.1

$100,331

-

-

-

-

Rain Garden C w/Subsurface Bed

5.4

$243,107

7.7

$168,825

5.4

$243,107

7.7

$168,825

Porous Concrete

0.3

$259,844

0.4

$180,447

0.3

$259,844

0.4

$180,447

Sidewalk Removal

0.1

$677,600

0.2

$470,556

0.1

$677,600

0.2

$470,556

Stormwater Planter (w/Subsurface Bed)

6.3

$202,197

7.5

$168,497

6.3

$202,197

7.5

$168,497

Stormwater Tree Trench (w/Subsurface Bed)

31.3

$341,562

40.7

$262,900

31.3

$341,562

40.7

$262,900

Subsurface Bed A

160.3

$233,275

166.7

$224,224

160.3

$233,275

166.7

$224,224

Subsurface Bed B

54.7

$205,231

105.3

$106,685

-

-

-

-

Disconnect w/New Storm Sewer

0.9

$503,373

1.1

$419,478

0.9

$503,373

1.1

$419,478

Acres / Greened Acres (GA) Managed Total Cost

Public

313.0

410.6

242.7

276.8

Low Estimate

$57M

$57M

$46M

$46M

High Estimate

$114M

$114M

$91M

$91M

Recommended Estimate

$81M

$81M

$65M

$65M

Acres / GA Unmanaged (vs Public and Private)

--

--

70.3

133.8

Grant per Unmanaged Acre / GA

--

--

$100,000

$100,000

Total Grant Cost

--

--

$7.03M

$13.38M

$81M

$81M

$72.03M

$78.38M

$258,786

$197,272

$296,786

$283,165

Total Recommended Cost with Grants Cost per Acre / GA Managed

Cost Summary

49

50

Stadium District Stormwater Improvement Plan – Green Alternative

Next Steps

52

Stadium District Stormwater Improvement Plan – Green Alternative

Next Steps Stakeholders

Supplementary information

The following next steps are recommended to engage stakeholders in moving forward with design and implementation of SMPs.

Through the Stormwater Improvement Plan process, the following information was identified as necessary for planning and design of SMPs. The information was unavailable for the Stormwater Improvement Plan but should be obtained for future planning and design activities.

• City Departments and Public Agencies: Continue discussions regarding the stormwater planning district, find opportunities to combine stormwater management efforts with other public initiatives, form partnership agreements, and make unified implementation requests of stakeholders.

• Large Landowners/Tenants and Partner Organizations and Other Private Landowners and Civic Groups: Identify and initiate implementation partnerships with private landowners, who were largely unresponsive to previous efforts to discuss the SPD initiative.

• High Profile Landowners and Tenants: Continue discussions regarding the stormwater planning district, form partnership agreements, and make implementation requests of stakeholders.

Detailed Utility Mapping

• Stadiums’ existing on-site separate sewer systems • Existing separate sewer system north of FDR Park • SEPTA tunnel plans • Parking lease agreements (term, minimum number of spots necessary, parking space size requirements)

Project Prioritization A matrix similar to the one the provided in Appendix F - Sample Project Prioritization Matrix could be used as a decision-making tool to prioritize SMPs for implementation—weighing the triple-bottom-line benefits, not just cost, of individual projects.

Utility mapping is required for future phases of planning and design. Digitized information is not currently available for much of the district. In areas such as XFINITY Live! and the Wells Fargo Center, where digitized information does exist, utility mapping is required to reflect site renovations and demolition of previous facilities. Utility surveys and digitization are also necessary in the residential area in the district’s northwest corner and the industrial sites east of the stadiums.

Next Steps

53