davids island study for the city of new rochelle
city of new rochelle/kpf/arup/sbi
october 11, 20111
davids island
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letter from mayor noam bramson For almost two generations, Davids Island has both enchanted and bedeviled New Rochelle. It is easy to understand why. There is nothing quite like it: a nearly eighty-acre blank canvas, situated within the largest and most densely populated metropolitan area in America, visible from nearly every portion of our coastline and owned by the people of New Rochelle. But while Davids Island has inspired grand plans, all have faltered in the face of economic, environmental or political obstacles. Today, half a century after the closure of Fort Slocum, the island’s future remains unsettled – its potential for public enjoyment and benefit, like the island itself, just out of reach. In September 2010, New Rochelle opened a new chapter in Davids Island’s history. Determined to avoid the mistakes of the past, the City resolved neither to advance concepts without first testing their value and viability, nor to react to concepts without first establishing a homegrown, community-supported vision. Acting on this new strategy was a volunteer Task Force composed of neighborhood representatives, development experts, environmental advocates and public officials from various levels of government. Together, the Task Force members reflected the spectrum of perspectives that have traditionally had an interest in – and often clashed over – Davids Island. The fact that the Task Force was able to work collaboratively and collegially is, in itself, evidence that historic divisions can be overcome in favor of a fresh consensus. For its hard work, open-minded spirit and creative energy, the Task Force has earned the gratitude of all people in New Rochelle. The findings and conclusions of the Task Force have been tested, illustrated and greatly enhanced by the planning professionals of KPF, ARUP and SBI – among the very best in the world. Rarely has such a generous gift of expertise been donated to a municipality, and I hope that the experience of addressing a site as unique and interesting as Davids Island provides some measure of compensation. The report that follows reflects the insights of the Task Force and the analytical skill of KPF, ARUP and SBI. It constitutes the most rigorous, comprehensive and useful examination of re-use options for Davids Island that has ever existed, and it will be an invaluable tool for the City Council and the people of New Rochelle as we strive together to shape the future of this remarkable place.
Mayor Noam Bramson
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letter from davids island task force The Davids Island Task Force was created to examine the challenges and opportunities surrounding a unique waterfront asset and to assist the City Council in shaping an achievable, community-based vision for the Island’s future. In approaching this mission, the Task Force sought to honor several over-arching principles: •
Recognize and take full advantage of the unique nature and value of Davids Island;
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Draw upon and respect public input from New Rochelle and our region;
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Appropriately balance environmental, economic and social concerns and objectives;
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Enable the public to better achieve and enjoy access to the waterfront;
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Demonstrate and advance a commitment to sustainability; and
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Consider economic and fiscal constraints to ensure that plans are realistic.
The Task Force conducted a comprehensive assessment of the Island, researched its history and current conditions, and entertained a variety of potential re-use scenarios. We did not attempt to achieve consensus on a single, specific re-use plan, but rather to illustrate the probable benefits, impacts and obstacles associated with a spectrum of options and to provide tools for evaluating the consistency of such options with the principles above. Clarity in the City’s goals and expectations, coupled with additional outreach to the public and stakeholders, will maximize the prospects the successful re-use of Davids Island. The Task Force’s chief conclusions and recommendations are as follows: Slightly More Than Half Of The Island Is Developable: Approximately 45 of the Island’s 78 acres could be developed. This figure accounts for shoreline setbacks, probable sea level rise, the presence of a Consolidated Edison easement, and a variety of other constraints. The 33 non-developable acres could, nonetheless, serve a variety of public functions, and the use and condition of this additional acreage should be integrated into any overall plan for Davids Island. Environmental Remediation Is Necessary & Costly: Significant and costly environmental remediation will be a necessary component of any plan entailing meaningful human access to the Island. The required scope of such remediation will depend upon the intensity and nature of intended development and recommendation from DEC. Balancing Environmental & Economic Objectives Is Essential: A plan that blends private and public uses, with the former wholly or partially subsidizing the latter, is more likely to meet the tests of financial and political viability than a plan that is either exclusively private or exclusively public. Especially at a time of limited public resources, the Island should, over the long-term, at least “carry its own weight” and contribute to the vitality of our local and regional economy. Sustainable Design Presents A Key Opportunity: Sustainable design and operation, from
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energy neutrality to innovative waste management, can and should be a defining feature of any re-use plan. In addition to enhancing the overall quality and marketability of any development, sustainable design and operation may also help to reduce infrastructure costs, mitigate negative development impacts, and attract public and/or private financing. The range of options for sustainable design and operation is dramatically larger today than during any previous consideration of re-use plans for Davids Island. Access Should Minimize Car-Dependency: Water-borne transportation, coupled with surface transportation between the downtown central parking district and any ferry embarkation point(s), is likely to be the only cost-effective and least impactful means of providing access to Davids Island, and would also help integrate the Island into the downtown commercial economy. The prohibition of cars on the Island would reduce infrastructure costs and reinforce sustainability principles. Bridge access, although not recommended, is nonetheless examined in this report for the sake of completeness. Implementation Should Be Phased: Re-use plans for Davids Island can and should be phased. Immediate steps should concentrate on facilitating passive public access to the Island for kayakers and boaters and on encouraging greater public awareness of and exposure to the Island’s potential value. Short-term development should be self-contained, sustainable and consistent with a longer-term vision for the Island, and should serve as a catalyst for future development. The Members of the Davids Island Task Force express thanks to the City Council for the opportunity to participate in this exciting and engaging exercise. We acknowledge the guidance and support of City staff, including Commissioner of Development Michael Freimuth, Planning Director Eleanor Sharpe and Senior Project Manager Suzanne Reider. And we express great appreciation to KPF/ARUP, whose donation of time and expertise contributed immeasurably to the professionalism and thoroughness of our report. Task Force Members were deliberately selected to represent a wide array of constituencies, viewpoints and interests. Our exchange of ideas and perspectives was consistently enlightening and thought provoking. After more than a year of working together, differences of opinion about Davids Island still remain, but we are firmly united in the belief that Davids Island holds significant potential for our community and region, and that the time to explore this potential is now. It our hope that the product of our efforts will enable the City of New Rochelle to meet this challenge in a confident and positive spirit, escape a fruitless cycle of reaction to external proposals, and instead formulate a bold, community-based vision that excites the public’s imagination and engenders the durable support necessary to sustain a long-term endeavor. Davids Island Task Force: Doug Hocking, Thomas Lang, Kathy Jensen-Graham, Terence Gargan, Bonnie O’Brien, Rob Balachandran, Cesare Manfredi, Steve Levy, Christine Sculti, William Janeway, Richard Organisciak, Sara Richmond, Ellie Fredston, David Blumenfeld, Gary Trachten, Gregory Merchant, Mayor Noam Bramson, Council Member Albert Tarantino, Michael Yellin
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table of contents Introduction.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Site Analysis. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Density Scenarios. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 Appendix.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
davids island new rochelle, ny
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introduction
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introduction Davids Island, named for the 19th century owner Thaddeus Davids, is a 78-acre island located about 3,000 feet from the coast of New Rochelle, in Westchester County, New York. Since it was decommissioned as the Fort Slocum army base in the 1960s, several schemes for redevelopment have been proposed. In the 1960s Consolidated Edison owned the island, but returned it to New Rochelle in 1976. In the 1980s, Xanadu Property Associates proposed a 1750 unit luxury residential development, and in 1995 the Trump Organization proposed a four tower scheme, then a scheme with multi-million dollar villas. Both of Trump’s proposals were withdrawn. In 2010, the Davids Island Task Force was established. In February 2011, the Task Force published an Interim Report, proposing a hotel and marina development for the island. Currently, no proposal for Davids Island development has been formally proposed and accepted. The role of Kohn Pedersen Fox Associates, PC (KPF) in the Davids Island project is to present the stakeholders of New Rochelle with objective information on the history of Davids Island, zoning regulations and environmental considerations that affect the developable area of the site, a range of potential development options for the site, and initial thoughts on development option viability. Our analysis addresses seawall and zoning setbacks, future sea level rise, the Con Ed easement area, contaminated areas, previous proposals for Davids Island development, and connections to the mainland. We also address higher level sustainability considerations for Davids Island, as based in GreeNR: New Rochelle Sustainability Plan, Green Initiatives of the New Rochelle Municipal Marina, and the Westchester Action Plan for Climate Change and Sustainable Development. Any future proposal for Davids Island should align with the sustainable and overall vision for the City of New Rochelle and Westchester County. No scenario in this document is a scheme or development proposal for Davids Island. Rather, propose general development intensities and evaluate the fiscal, social, and environmental merits of each scenario. This preliminary study provides a portfolio of initial concepts for David’s Island’s development. In future stages of work, a subset of these concepts may, at the City’s direction, be developed into scenarios that build upon and more fully evaluate the potential of the initial concepts. These concepts may be combined, enhanced or substituted altogether to produce more refined propositions for the island. Infrastructure technologies may be
davids island, 2005
selected and innovations introduced that are beyond the scope of the initial ideas. Other considerations, such as the market and technology feasibility of transportation systems, the codification and application of land-use and zoning guidelines and the environmental appropriateness of the various infrastructure concepts may all materially change variables such as the amount and form of development on the island.
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U.S.A. General Hospital, 1870
Quarter-Master Buildings, 1872
Davids’ Island, N.Y. Harbor, 1884
Proposed Water Works, 1884
U.S. Military Reservation, 1894
Fort Slocum, Davids Island, 1915
Fort Slocum, Davids Island, 1921
Davids Island, New Rochelle, 1961
history of davids island Native Americans first began to visit what is today Davids Island long before European
nuclear power plant. However, due to public objection, Con Ed withdrew their plan and sold the
colonists arrived on the east coast of North America. Beginning in the 17th century,
island back to New Rochelle for $1 in 1976. Following ten years of neglect, the city designated the
Euroamericans occupied the island, which supported a farmstead, for nearly two hundred
island as an urban renewal area.
years. The U.S. Army established its first post there in 1862, and the island became known as Fort Slocum. The development of Fort Slocum from the 1870s to the 1960s was influenced by three areas of military influence; recruitment and training; military architecture; and coastal and urban defense. The US Army arrived on Davids Island during the Civil War and in 1862 opened a military hospital. After the hospital closed in 1866, the State of New York formally ceded jurisdiction of the island in 1868. During the late 1860s and early 1870s, the Army used the island discontinuously, until a small hiatus in 1874 when the Army abandoned the island due to its dilapidated condition. In 1878, Davids Island was made a Principal Depot of the U.S. Army and served as a military recruiting station and coastal battery, until it was deactivated in 1965.
Since the late 1970s, Davids Island has faced abandonment and neglect while developers and city officials have continuously tried to properly utilize the island. Interested parties, such as Xanadu, Trump, Davids Island Development Group and Westchester County have proposed plans to determine the future of the island. In 2002 it was decided that the county would purchase, restore, and protect Davids Island; these plans were never fully realized. Beginning in 2004, Congress, through the efforts of Representative Nita Lowey, secured a total of $26 million for building demolition and asbestos removal on Davids Island, which was completed in 2009. In 2010, the mayor of New Rochelle announced plans to devise a conceptual plan for Davids Island. In September of that year, the Davids Island Task Force convened to shape and achieve a vision for the island as a destination for both residents and the surrounding region.
In 1967, the City of New Rochelle purchased Davids Island for $485,000, with the goal of redeveloping the island. Con Ed then purchased the island for $3 million in 1968 as a site for a 14
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1950
1960
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1980
1990
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2010
present
de camp general hospital1
1862 - 1874
fort slocum2 1878 - 1967
remediation3 2005 - 2009 [phase 1]
new rochelle4 1967 - present
feasibility study & city alive plan5 1967
con ed6 1968 - 1976
hotel columbia plan7 1977
xanadu8 1981 - 1992
westchester county9 1990 - 2010
trump10 1994 - 1996
davids island development group11
evolution of davids island 1 In 1862, the War Department subleased the island from Simeon Leland, an hotelier, who had recently leased it from Thaddeus Davids, a New Rochelle ink manufacturer. The government began constructing De Camp General Hospital, which opened in the same year. The hospital served the U.S. Army through the Civil War, and closed in 1874. 2 Between 1879 and 1967, Ft. Slocum, a post of the U.S. Army, served as a military recruiting station and coastal battery that helped protect the eastern approach to New York Harbor. From 1955-1961, the island was the site of the fire control station of the Nike missile battery, which was the world’s first operational surface-to-air anti-aircraft missile system, designed to protect major American cities from nuclear attack. 3 Davids Island is currently designated as a “brownfield site.” In 2004, Congress appropriated funds for the building demolition, asbestos removal, and evaluation of PCB cleanup. 16
The $26 million project was completed in 2009. 4 In 1967, New Rochelle purchased the island from the Federal Government for $485,000. After 10 years of neglect, the city designated it an urban renewal area and sought proposals for development. In 2010, the Davids Island Task Force was formed. 5 In 1967, Getter-Green Associates conducted a feasibility study, which produced the City Alive Plan consisting of 2 schemes: one primarily residential and the other primarily commercial. 6 In 1968, Con Ed purchased the island for $3 million as a site for a nuclear power plant, but withdrew the plan to due public objection. After attempting to solicit potential plans, Con Ed eventually sold the island back to New Rochelle for $1 in 1976.
1994 7 In 1977, Hotel Columbia was proposed for Davids Island. The plan included a large complex, made up by four hotels - each with 300 rooms - a convention center, recreational facilities, shopping, casino, and theatre. Island access would be water-borne with one helipad to accommodate some air travel. 8 In 1992, Xanadu Property Associates proposed a new development plan to address issues of the original proposal. However, continued opposition from environmentalist and other community groups led New Rochelle to opt out of extending Xanadu the status of designated developer. 9 Westchester County planned to buy Davids Island and convert it into a waterfront park linked to nearby communities by ferry. To limit the plan’s impact on marine and plant life, the plan includes biking/hiking trails, ball fields, and playgrounds.
10 In 1996 Donald Trump proposed to develop the islands as a luxury residential community. His plan called for three 22-story buildings and one 45-story tower, a 1,000-slip marina, a small retail complex with parking for 3,500, and a ferry service that would provide transportation to the island. Trump faced community resistance and withdrew his plan in 1996. 11 In 1994, Davids Island Development Company, composed of a consortium of smaller developers, formed to create a family entertainment park with a water park, amphitheater, health club and earth science center while connecting the mainland to the island via a magnetic monorail.
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fort slocum,1878-1967
city alive plan, 1967
con ed property, 1968-1976 (image indicative of development)
xanadu, 1981-1992
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city alive plan, 1967
hotel columbia plan, 1977
trump, 1994-1996
fort slocum (davids island), new rochelle 1961 19
new rochelle, westchester county & davids island, present
davids island task force
davids island present
The Davids Island Task Force was established in September 2010 to assist the City of New
Since Fort Slocum was decommissioned in 1967, many development proposals have been
Rochelle in shaping and achieving a new vision for the island’s future. It is comprised of a
offered for Davids Island, but none have received broad and sustained support, and all
range of members, including representatives from neighborhoods, nearby municipalities and
have attracted vocal opposition. The island remains a fascinating subject of debate, with
environmental organizations, as well as experts in planning, development and sustainability.
enormous potential and daunting obstacles existing in nearly equal measures. This booklet
The Task Force formed two subcommittees to evaluate existing site conditions and consider
illustrates and complements the findings of the Davids Island Task Force with respect to the
options for future use.
island’s history, environmental condition and development potential. It is intended to assist the City of New Rochelle in its effort to shape an achievable and publicly-supported vision for the island’s future.
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site analysis
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fort slocum, 1894
davids island, 2011
mean high water - 77.78 acres
water grant line - 119.96 acres Water Grant Perimeter established by the Corps of Engineers in October 1879 (First Lt. Eugene Grifin).
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Mean High Water - The average of all the high water heights observed over the National Tidal Datum Epoch.
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2050 mean high water - 66.21 acres
2080 mean high water - 55.69 acres
The New York State Department of Environmental Conservation projects sea levels in the
diagrams are based on the area determined by the current mean high water line, where KPF
Lower Hudson Valley and Long Island to rise by two feet in 2050, and by four feet in 2080.
has approximated an above-water land area of 66.21 acres in 2050 and 55.69 acres in 2080.
Such a change would affect the developable area for the island. Based on the available
The following analyses in this section are based on the current mean high water line and are
topographic information for the island, KPF has approximated the effect sea level rise might
independent of the projected sea level rises shown here.
have on the above-water land area over the next 70 years. The estimates shown in the above
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con
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seawall setback - 56.82 acres
con ed easement - 52.62 acres
The New Rochelle’s Zoning Code stipulates the following setbacks for land along a waterfront:
Consolidated Edison owns a strip of waterfront along the southern edge of the island. This
35 foot setback if seawalls are present, and 80 foot setback if there is no seawall. Subtracting the
easement allows Con Ed to maintain its 345 kilowatt underwater electric cable. Of the 5.20
area of the regulated Seawall Setback, 56.82 acres remain available for development.
acres, 4.20 acres are within the mean high water line. Subtracting the 4.20 acres of Con Ed Easement, 52.62 acres remain available for development.
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heptachlor epoxide (pesticide)
chromium
pcbs
1879
chromium
pcbs arsenic
unidentified potential contamination
chromium; lead arsenic arsenic; lead mercury lead; chromium lead; mercury; arsenic; chromium lead; arsenic; chromium
present
potentially contaminated areas - 52.34 acres
incinerator zone - 49.61 acres
From 2005 to 2009, the US Army Corps of Engineers demolished ninety-four structures and also performed
Originally, there was a water inlet between the Incinerator Zone and Davids Island, which is
an asbestos abatement project on Davids Island. Simultaneously, the City of New Rochelle and County of
now infilled by the significant amounts of ash and slag from the former burning of waste on
Westchester conducted a Site Investigation as part of the Davids Island Environmental Restoration Project, to
Davids Island. We’ve provided a 50 foot buffer from the incinerator site to the developable
determine the full extent of the island’s contamination. It revealed the entire site had been affected by polycyclic
land footprint. Subtracting the 2.73 acres of Incinerator Zone, 49.61 acres remain available
aromatic hydrocarbons (PAHs), pesticides and metals. Polychlorinated biphenyls (PCBs) were found in select
for development.
areas. The potentially contaminated areas are primarily where former drums and transformers were located on the site. Groundwater samples showed no elevated concentrations of volatile organic compounds (VOCs) or semi-volatile organic compounds (SVOCs). Subtracting the 0.28 acres of Contaminated Areas, 52.34 acres remain
In the context of an overall remediation plan for the island, it may be sensible and costeffective to move contaminants from other parts of Davids Island to the Incinerator Zone.
available for development. 30
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total setback area - 17.23 acres
additional zoning regulations - 45.10 acres
The New Rochelle Zoning Code requires a 35 foot setback from the mean high-tide line
The New Rochelle Zoning Code requires a minimum of 40% of Davids Island remain open, and a
where there is a seawall, and an 80 foot setback in areas where there is no seawall. The
minimum of 25% of the site be accessible to the public. The Code also stipulates a Vegetated Buffer
above setback also includes the Con Ed easement as well as a 50 foot buffer around the
should cover a minimum of 50% of the side of Davids Island that faces the mainland or Long Island
incinerator zone. Such setbacks create a continuous waterfront yard around David’s Island,
Sound. The hatched areas in the above diagram represent these specified areas. The shaded area
approximately 17.23 acres. Subtracting the 17.23 acres of required setbacks areas, 60.55 acres
represents the total land area of 45.10 acres that is available for development within the city’s zoning
remain available for development.
regulations. The shape of the 45.10 acres is arbitrary and not indicative of the actual location for site development; this would be determined by future development scenarios.
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site remediation Previous development on Davids Island has led to general and acute site contamination. A former incinerator zone occupies 2.73 acres of the southeast portion of the island. The most serious hot spots of localized contamination have been removed, but metals and other contaminates remain in localized areas around drums and transformers. In 2004, Congress appropriated funds for building demolition, asbestos removal, and evaluation of PCB cleanup, and
option 1: build a building or structure over the contaminated site.
between 2005 and 2009, the Army Corps of Engineers performed these tasks. The $26 million project was completed in 2009. Cleaning Davids Island through soil remediation allows for the reuse of a previously developed and contaminated site and prevents continued degradation of the island and the Long Island Sound. The extent of future remediation depends both on the pollutants found and use intensity. The goal of remediation is to prevent exposure of contaminants to inhabitants. A variety of methods exist to remediate contaminated land. This includes building on or paving over contaminated soil, adding a thick layer of clean soil over a contaminated area, and removing polluted soil for off-site cleaning.
option 2: cap the contaminated site with soil. the depth of the cap is related to the land use. potential areas & levels of site remediation high remediation minimal remediation
Natural remediation methods, in which microbes digest harmful chemicals and break them into non-toxic components, should be used to the extent of their effectiveness, although the heavy metal contained on Davids Island likely requires other solutions. Time and cost must also be considered as part of any remediation strategy. Environmental Conservation is working on a site
site management plan
management plan for Davids Island, and final
One way to evaluate the consequences of development is to anticipate the possible levels
remediation recommendations and strategies will
of remediation per land use and density scenario. Two general categories of remediation
Currently, the New York State Department of
be determined by the experts in this department. KPF has illustrated three potential strategies that are appropriate for the contamination on Davids Island.
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requirements might include high-remediation and low-remediation. Ultimately, experts on option 3: scrape and remove contaminates from the site. this requires removing the entire contaminated area from davids island.
waste hazards and environmental remediation at the DEC will determine the remediation measures required to build on Davids Island.
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net zero energy, water, waste net zero energy, water, waste
new rochelle sustainable design principles Consistent with GreeNR - the New Rochelle Sustainability Plan, the Green Initiatives of the New Rochelle Municipal Marina, and the Westchester Action Plan for Climate Change and Sustainable Development, development on Davids Island should support the sustainability goals of New Rochelle. To do so, the planning of Davids Island must align with the vision of New Rochelle and address sustainability through a “triple bottom line� approach to environmental, social, and economic well-being.
Energy & Climate Infrastructure and buildings developed on Davids Island should utilize climate appropriate passive and active strategies to reduce energy consumption and greenhouse gas emissions. Once the energy load is minimized, renewable energy generation should be investigated at various scales on the island.
Resource Conservation & Waste Reduction Development scenarios on Davids Island should seek to create closed loop systems for waste and water by encouraging conservation, minimizing waste, and increasing reuse, recycling. and efficient buildings. Local water collection and filtration methods, and the production of food and energy on site, will work to foster an efficient use of natural resources and materials.
Ecology, Biodiversity, & Public Health Remediation of Davids Island should provide comprehensive improvements to the soil quality and limit the toxic stormwater runoff that contaminates water supplies, impacting public health. These changes will improve the area ecosystem, provide remediated green space for public use and benefit, and reduce pollution into the Long Island Sound.
Smart Growth & Economic Prosperity
energy, water, waste
solar solar solar biomass biomass biomass geothermal geothermal geothermal wind wind recycling recycling mass transit recycling Trigernation cogeneration Trigernation graywater system led street lights graywater system rainwater catchment graywater system rainwater catchment local food production carpool/car share local food production nighttime thermal storage local food production nighttime thermal storage desiccant dehumidification nighttime thermal storage desiccant dehumidification desiccant dehumidification
electric vehicle charging station
shading shading shading curb cutscuts curb curb cuts openspaces daylighting openspaces composting daylighting bike parking daylighting composting bio-retention composting bike parking porous pavement bike parking public parks native vegetation public parks native vegetation natural ventilation native vegetation natural ventilation building orientation naturalorientation ventilation building light-colored pavement building orientation pedestrian-oriented design pedestrian-oriented design pedestrian-oriented design high albedo, porus pavement high albedo, porus pavement
generate renewable energy generate energy generate renewable renewable energy
low-energy low-energyactive active strategies strategies low-energy active strategies
passive strategies
passive strategies passive strategies
Smart Growth principles should be used to create a node of activity on Davids Island. The development should foster green job growth and attract sustainable businesses to New Rochelle.
Transportation & Mobility amenities, to limit the need for transportation infrastructure on site thereby reducing carbon dioxide
sustainable strategies for davids island
emissions while promoting health and well-being.
The sustainable strategies for the development of Davids Island have been divided into four
All forms of development on Davids Island should look to develop a walkable community with accessible
sustainable strategies for davids island sustainable strategies for davids island The sustainable strategies for the development of Davids Island have been divided into four
main focus areas: waste management, water management, pedestrian comfort, and energy. Public Participation & Awareness The transformation of Davids Island seeks to build on a previously developed site, protecting viable farmlands and agricultural areas in the process. This development can also educate residents about sustainable practices and provide an example of best practices. 36
By creating masterplan with these ideas in mind, New Rochelle have a clean, The sustainable strategies for thefour development of Davids Islandwill have been divided into four main focusa areas: passive strategies, low-energy active strategies, generating renewable green, amenity in Davidslow-energy Island. mainenergy focus efficient areas: passive strategies, active strategies, generating renewable
energy, and closed loop systems that allow for net zero energy, water and waste. By creating and closed loop systems that allow for net zero energy, water and waste. creating aenergy, masterplan with these four ideas in mind, New Rochelle will have a clean, green,By energy a masterplan with four ideas in mind, New Rochelle will have a clean, green, energy efficient amenity inthese Davids Island. efficient amenity in Davids Island.
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comparison of energy used to transport one passenger one mile (btu/passenger-mile) 3,600
3,200
existing train station
2,800
2,400
2,000
1,600
bike path
1,200
800
potential ferry dock at wright island
400 potential ferry dock at neptune park
0 private automobile
electric car
bus
ferry boat
bicycle
walking
potential ferry dock
potential transit routes
new rochelle efficient transit Utilizing efficient transit within New Rochelle will help to minimize the number of
Approximate travel times between the existing train station to either of the potential ferry
automobiles, lower fossil fuel consumption, and reduce harmful carbon dioxide emissions
docks are listed below for different means of transportation.
while promoting well being and health. Due to its size, transportation to, from, and on the island can be highly efficient. Traversing approximately 1 mile across the Long Island
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Cars or Taxis - About 7 minutes from the train station to the potential ferry dock
Sound, a slow ferry could reach Davids Island in minutes while maintaining a low BTU per
Biking - About 11 minutes from the train station to the potential ferry dock
passenger mile.
Walking - About 33 minutes from the train station to the potential ferry dock
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pedestrian priority buildings with pedestrian oriented street frontages.
mixed-use districts variety of services within a comfortable walking distance of transit.
vegetation wide sidewalks with vegetation and seating areas.
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0.25 MILES 5 minute walk market community center, community farm, bus, shuttle stop, dry cleaners
1.0 MILE
0.5 MILES 10 minute walk supermarket, schools, light rail station, neighborhood park, small scale retail, restaurants
potential ferry landing
m
in
e ut
w
al
k
5 minute walk
20 minute walk offices, gym, cinema, restaurants, transit nodes, large retail chains
pedestrian oriented design An average person will walk approximately one-quarter mile to run daily errands and as far as a half-mile to reach health rail transit systems or more specialized shops or civic uses. More than half of Davids Island falls with in a five-minute walk of the potential ferry station.
walking distance from port
The small scale and accessibility of the island opens up the possibility of minimizing or banning vehicles or a completely pedestrian-oriented island.
40
41
Glen Island Glen Island
governors island, ny
fire island, ny
davenport neck, ny
downtown new rochelle, ny
site scale comparisons Studying scale comparisons can help evaluate appropriate scales, proportions, and
Notes: Governors Island (car-free island south of New York City); Fire Island (car-free island
densities for a site. It is suitable to draw on precedents from other areas that share similar
south of Long Island); Davenport Neck (residential development in New Rochelle, along
characteristics and potential development typologies to what might be imagined for
coast); Downtown New Rochelle
Davids Island. The above diagrams help to understand the site’s size, adjacency to water, development intensity, and scale.
42
43
Glen Glen IslandIsland oak bluffs, ma
city island, ny
glen island, ny
santa catalina, ca
site scale comparisons Notes: Oak Bluffs (town on Martha’s Vineyard); Glen Island (park island off coast of New Rochelle); City Island (part of Bronx, in Long Island Sound); Santa Catalina (22 miles off coast of Southern California)
44
45
density scenarios
46
47
density scenarios
components of plan viability
This section presents a number of possibilities for Davids Island, including open parkland, a range of residential development options, light industrial uses, and a research institute.
social
These scenarios show indicative development statistics and infrastructure and zoning requirements prompted by the intensity of the development. To further refine the analysis, KPF presents a rating system to evaluate the schemes. We
social benefits public amenities accessible open space municipal planning viability
believe the addition of a rating system is important because it brings clarity to a rather complex series of issues. The system is based on the three criteria for a sustainable development: the social, economic and environmental impacts of a project on the community, or a “triple bottom line.� The scale is composed of a numeric range, from one to five, with three being neutral impact, five being the most positive and one being the most negative. In each scenario, we present our reasoning for each rating. These scenarios are preliminary analyses of conervative development options. Further studies could reveal more integrated and involved ideas for future development, and might include creative design solutions for a sustainable plan for Davids Island. None of the following development scenarios is a design scheme or site plan; they are only diagrams, used to convey the ranges of development possibilities for Davids Island.
fiscal viability remediation costs infrastructure future impact plan longevity
land water air energy inhabitants
An actual design scheme or site plan could certainly encompass elements of several of the development options depicted.
economic 1 negative
48
3 neutral
environmental
5 positive
49
glen island park, ny
moors nature reserve, uk
shelby farms, tn
rt
po statistics
Net FAR FAR
Single Housing Family Hsg Multi-Unit Units Units Units units
units
units
Housing Residential Density Population DU/DUA
persons
Population Density (2) pop/dev ac
School Age Children Employees - Employees (2) Outgoing (2) Incoming persons
(1) The Pootatuck/Newtown Acquifer Protection District, Connecticut, serves 1,153 households. (2) NYS RDM values for suburban, high income by housing typology (bedrooms/unit size, and bdg type). (3) Per NYSSED guidelines (3 acres + 1 add'l acre for every 100 students)
persons
persons
-
-
Large Ferry/Barge Facility
Island Shuttle Service
Peak Tourist Jobs/ Residents Hotel Rooms Population %
rooms
0%
-
guests -
Retail Space/ person sq ft -
triggers Community Septic/Other Treatment
Piped Sewage System
District Industrial Energy Anaerobic Plant Digestion
Tidal Power
School
Causeway
Onshore Pkg/ Car Limit
?
scenario 1 - open parkland One option for Davids Island is to leave the island largely untouched, resulting in open
status quo is maintained and no further remediation strategies are taken. Designating the
parkland. The open parkland could be available for public use. Where the island is open
entirety of Davids Island as open parkland would likely preclude the opportunity for future
to the public, remediation likely would be required, and would necessitate minimal
development, but portions of the island could be so designated in the context of an overall
infrastructure development to support island visitors. Maintaining an open space on
mixed-use development plan.
Davids Island would preserve the natural environments, habitats and biodiversity in this area of Westchester County. It does not necessarily improve the environment, if the 50
economic 1 social 4 environmental 3
viability 2.67 51
EN B CA GY ER LE
PATH FERRY
ascension island
pv farm
kumasi, ghana
dock
statistics
Net FAR FAR
Single Housing Family Hsg Multi-Unit Units Units Units units
units
units
Housing Residential Density Population DU/DUA
persons
Population Density (2) pop/dev ac
School Age Children Employees - Employees (2) Outgoing (2) Incoming persons
0.02 (1) The Pootatuck/Newtown Acquifer Protection District, Connecticut, serves 1,153 households. (2) NYS RDM values for suburban, high income by housing typology (bedrooms/unit size, and bdg type). (3) Per NYSSED guidelines (3 acres + 1 add'l acre for every 100 students)
persons
persons
-
33
Large Ferry/Barge Facility
Island Shuttle Service
Peak Tourist Jobs/ Residents Hotel Rooms Population % 0%
rooms -
guests -
Retail Space/ person sq ft -
triggers Community Septic/Other Treatment
Piped Sewage System
District Industrial Energy Anaerobic Plant Digestion
Tidal Power
School
Causeway
Onshore Pkg/ Car Limit
?
scenario 2 - photovoltaic cells Developing a PV system on Davids Island is a possibility, and this scenario proposes platting Davids Island with PV cells. The calculations presented here reflect a highly efficient PV system, and developing such a system would yield a six-year payout for the investment. At the average electricity usage for New York State, approximately 1,000 to 2,000 homes could be powered, making this scheme desirable from an economic perspective. A minimum number of workers would need ti live on the island to manage the PV farm. This scenario considers that all energy generated on Davids Island would be exported to the mainland. A portion of the island could remain open for public usage. 52
economic 5 social 3 environmental 4
viability 4 53
EN B CA GY ER LE
PATH FERRY
eastern oregon
hull, massachussetts
brittany, france
dock
statistics
Net FAR FAR
Single Housing Family Hsg Multi-Unit Units Units Units units
units
units
Housing Residential Density Population DU/DUA
persons
Population Density (2) pop/dev ac
School Age Children Employees - Employees (2) Outgoing (2) Incoming persons
0.02 (1) The Pootatuck/Newtown Acquifer Protection District, Connecticut, serves 1,153 households. (2) NYS RDM values for suburban, high income by housing typology (bedrooms/unit size, and bdg type). (3) Per NYSSED guidelines (3 acres + 1 add'l acre for every 100 students)
persons
persons
-
33
Large Ferry/Barge Facility
Island Shuttle Service
Peak Tourist Jobs/ Residents Hotel Rooms Population % 0%
rooms -
guests -
Retail Space/ person sq ft -
triggers Community Septic/Other Treatment
Piped Sewage System
District Industrial Energy Anaerobic Plant Digestion
Tidal Power
School
Causeway
Onshore Pkg/ Car Limit
?
scenario 3 - wind turbines Davids Island is not located in an optimal windshed area. The possibility of harnessing wind energy for use on Davids Island is marginal, and a wind farm in this location would never turn a profit. Based on the National Renewable Energy Laboratory (NREL) rating map for 50m (164 ft) and 80m (262 ft) high turbines in southern New York, the average offshore wind speed for both a 50m and a 80m turbine is approximately 14-15 miles per hour. In addition to not being economically feasible, the turbines would obstruct views from the mainland and would have a significant impact on the environment. 54
economic 1 social 3 environmental 2
viability 2 55
PATH FERRY
chatham, virginia
marlborough, new zealand
hartford, connecticut
dock
statistics
Net FAR FAR
Single Housing Family Hsg Multi-Unit Units Units Units units
units
units
Housing Residential Density Population DU/DUA
persons
Population Density (2) pop/dev ac
School Age Children Employees - Employees (2) Outgoing (2) Incoming persons
0.27 (1) The Pootatuck/Newtown Acquifer Protection District, Connecticut, serves 1,153 households. (2) NYS RDM values for suburban, high income by housing typology (bedrooms/unit size, and bdg type). (3) Per NYSSED guidelines (3 acres + 1 add'l acre for every 100 students)
persons
persons
-
240
Onshore Pkg/ Car Limit
Large Ferry/Barge Facility
Island Shuttle Service
Y
Y
Peak Tourist Jobs/ Residents Hotel Rooms Population % 0%
rooms
guests
-
-
Retail Space/ person sq ft -
triggers Community Septic/Other Treatment Y
Piped Sewage System
District Industrial Energy Anaerobic Plant Digestion ?
Tidal Power ?
School
Causeway
scenario 4 - greenhouse Good solar exposure and a moderate climate on Davids Island provide an opportunity for commercial
Typical crops could include lettuce, tomatoes, strawberries, beans, and peppers. A conservative estimate
food production via high yield hydroponic greenhouses. Traditional agriculture would require extensive
for the annual yield per greenhouse is approximately 20 pounds of produce. The site accommodates 440
remediation of the soil, but these slab-on-grade structures could prevent direct exposure to soil
greenhouses, which could yield 8,800 pounds (4.4 tons) of produce annually. Capital costs for building
contaminants while producing food for the City of New Rochelle. Local food production reduces the
greenhouses, in addition to systems for composting on or off site and distributing the food beyond
negative environmental impact of the transportation of food, known as food-miles. Greenhouse-grown
Davids Island must be considered to establish a viable model.
produce also minimizes yield variation due to weather and hydroponic systems use 1/3 less water than traditional soil based agriculture. 56
economic 1 social 4 environmental 2
viability 2.33 57
governors island
woods hole
scripps institution of oceanography
rt
po statistics
Net FAR FAR
Single Housing Family Hsg Multi-Unit Units Units Units units
units
units
Housing Residential Density Population DU/DUA
persons
Population Density (2)
School Age Children Employees - Employees (2) Outgoing (2) Incoming
pop/dev ac
Peak Tourist Jobs/ Residents Hotel Rooms Population
persons
persons
persons
%
rooms
0.69 238 164 485 39 74 21.1 16.3 (1) The Pootatuck/Newtown Acquifer Protection District, Connecticut, serves 1,153 households. (2) NYS RDM values for suburban, high income by housing typology (bedrooms/unit size, and bdg type). (3) Per NYSSED guidelines (3 acres + 1 add'l acre for every 100 students)
336
554
165%
299
Large Ferry/Barge Facility
Island Shuttle Service
guests
718
Retail Space/ person sq ft
-
triggers Community Septic/Other Treatment
scenario 5 - hotel / conference & r&d
Piped Sewage System
District Industrial Energy Anaerobic Plant Digestion
Tidal Power
School
Causeway
Onshore Pkg/ Car Limit
Y(1) Y Y Y (1) The Pootatuck/Newtown Acquifer Protection District, Connecticut, serves 1,153 households.
Y
Y
Y
This scenario represents a low-density resort and research institute, with some commercial space, associated retail and restaurant space. To avoid a bridge requirement, this scenario provides housing on Davids Island for the workers at the Research Center. Some type of heavy barge pier would be required to transfer laboratory and technical equipment. There is the potential for a large future tax base, which makes it a positive option from an economic perspective. Most of the site would be a public park or nature reserve, and the research institute could bring further prestige to the City of New Rochelle. 58
economic 4 social 5 environmental 3
viability 4 59
oak bluffs, massachusetts
tybee island, georgia
stockholm, sweden
rt
po statistics
Net FAR FAR
Single Housing Family Hsg Multi-Unit Units Units Units units
units
units
Housing Residential Density Population DU/DUA
persons
Population Density (2) pop/dev ac
School Age Children Employees - Employees (2) Outgoing (2) Incoming persons
0.28 64 64 235 67 2.1 6.9 (1) The Pootatuck/Newtown Acquifer Protection District, Connecticut, serves 1,153 households. (2) NYS RDM values for suburban, high income by housing typology (bedrooms/unit size, and bdg type). (3) Per NYSSED guidelines (3 acres + 1 add'l acre for every 100 students)
persons
Peak Tourist Jobs/ Residents Hotel Rooms Population
persons
%
133
54
41%
Large Ferry/Barge Facility
Island Shuttle Service
rooms -
guests -
Retail Space/ person sq ft -
triggers Community Septic/Other Treatment
scenario 6 - low density residential 1/2 acre lots
Piped Sewage System
District Industrial Energy Anaerobic Plant Digestion
Tidal Power
School
Causeway
Onshore Pkg/ Car Limit
Y
This scenario represents a low density housing option, which primarily includes large singlefamily homes (approximately 6,000 sf) on half-acre lots. Because of the low development intensity, no commercial space is provided on the island. The low density development does not maximize the tax base for the area, and because the homes are large, the site coverage on the island will be high, which is less desirable from an environmental perspective. A large public park could be provided in this option, which is positive from a social perspective. 60
economic 2 social 4 environmental 2
viability 2.67 61
provincetown, ma
houston, tx
columbus, ohio
rt
po statistics
Net FAR FAR
Single Housing Family Hsg Multi-Unit Units Units Units units
units
units
Housing Residential Density Population DU/DUA
persons
Population Density (2)
School Age Children Employees - Employees (2) Outgoing (2) Incoming
pop/dev ac
persons
persons
persons
1.03 575 418 1,032 149 157 22.8 33.7 (1) The Pootatuck/Newtown Acquifer Protection District, Connecticut, serves 1,153 households. (2) NYS RDM values for suburban, high income by housing typology (bedrooms/unit size, and bdg type). (3) Per NYSSED guidelines (3 acres + 1 add'l acre for every 100 students)
685
248
Large Ferry/Barge Facility
Island Shuttle Service
Peak Tourist Jobs/ Residents Hotel Rooms Population % 36%
rooms -
guests -
Retail Space/ person sq ft 19.0
triggers Community Septic/Other Treatment
scenario 7 - low & medium density residential
Piped Sewage System
District Industrial Energy Anaerobic Plant Digestion
Tidal Power
School
Causeway
Onshore Pkg/ Car Limit
Y(1) ? Y Y (1) The Pootatuck/Newtown Acquifer Protection District, Connecticut, serves 1,153 households.
Y
Y
?
This scenario represents a low to medium density housing option, which includes single-
the development costs for the island. A more diverse population is accommodated in this
family homes (approximately 2,450 sf) on 1/4 acre lots, row houses (approximately 2,400
scenario, and a park could be provided, yielding high marks from a social perspective. It
sf), and multi-unit buildings (housing units approximately 1,250 sf). The buildings in this
will be difficult to cluster housing in this scenario, and the large site coverage yields low
scenario mostly are large, single family homes. The higher density development does yield a
environmental marks.
higher tax base, but the infrastructure requirements to support the population will increase
economic 3 social 4 environmental 2 62
viability 3 63
c au s e
w ay
peng chau island, hong kong
amsterdam, netherlands
boston, ma
rt
po statistics
Net FAR FAR
Single Housing Family Hsg Multi-Unit Units Units Units units
units
units
Housing Residential Density Population DU/DUA
persons
Population Density (2)
School Age Children Employees - Employees (2) Outgoing (2) Incoming
pop/dev ac
persons
1.96 1,415 435 2,812 307 980 68.2 94.5 (1) The Pootatuck/Newtown Acquifer Protection District, Connecticut, serves 1,153 households. (2) NYS RDM values for suburban, high income by housing typology (bedrooms/unit size, and bdg type). (3) Per NYSSED guidelines (3 acres + 1 add'l acre for every 100 students)
persons
persons
1,992
831
Large Ferry/Barge Facility
Island Shuttle Service
Peak Tourist Jobs/ Residents Hotel Rooms Population % 42%
rooms
guests
491
1,178
Retail Space/ person sq ft 19.2
triggers Community Septic/Other Treatment
scenario 8 - high density residential row houses
Piped Sewage System Y
District Industrial Energy Anaerobic Plant Digestion Y
Y
Tidal Power
School
Causeway
Onshore Pkg/ Car Limit
Y
Y
Y
This scenario represents a high-density housing with a small resort/hotel. Row houses
a tax base to cover the cost. This scenario triggers the need for a causeway or bridge, which the tax
(approximately 1,750 sf) are the primary housing typology, with some multi-unit buildings
base would not cover. Additionally, the causeway/bridge construction would require significant
(housing units approximately 1,250 sf). Because of the ability to cluster housing and
coordination with local, county, and state governments.
development, as well as the provision of park space and other public amenities, it ranks high from a social perspective. The higher density development requires a large amount of infrastructure investment; however, the population density is not high enough to yield 64
economic 1 social 5 environmental 2
viability 2.67 65
c au s e
w ay
london, england
vancouver, canada
trump place, ny
rt
po statistics
Net FAR FAR
Single Housing Family Hsg Multi-Unit Units Units Units units
units
units
Housing Residential Density Population DU/DUA
persons
Population Density (2) pop/dev ac
School Age Children Employees - Employees (2) Outgoing (2) Incoming persons
3.17 2,511 384 4,579 357 2,127 174.0 158.6 (1) The Pootatuck/Newtown Acquifer Protection District, Connecticut, serves 1,153 households. (2) NYS RDM values for suburban, high income by housing typology (bedrooms/unit size, and bdg type). (3) Per NYSSED guidelines (3 acres + 1 add'l acre for every 100 students)
persons
Peak Tourist Jobs/ Residents Hotel Rooms Population
persons
%
3,610
1,622
45%
Large Ferry/Barge Facility
Island Shuttle Service
rooms
491
guests
1,178
Retail Space/ person sq ft
21.5
triggers Community Septic/Other Treatment
scenario 9 - high density residential multi unit housing
Piped Sewage System Y
District Industrial Energy Anaerobic Plant Digestion Y
Y
Tidal Power ?
School
Causeway
Onshore Pkg/ Car Limit
Y
Y
Y
Y
This scenario represents a high density housing option, including a mix of single family housing (approximately 1,850 sf), row houses (approximately 1,450 sf), and multi-unit buildings (housing or bridge, which the tax base in this option would not be able to cover. The causeway/bridge construction would require significant coordination with local, county, and state governments. This scenario creates a town on the island, which has significant social and environmental impacts for the island, and could direct investment away from Downtown New Rochelle. 66
economic 1 social 2 environmental 1
viability 1.33 67
35 00 ft .
brooklyn bridge
37
00
ft
750
f t.
city island road
.
400 t. 0 f
bronx whitestone bridge
davids island
4760
f t.
george washington bridge
bridge scale comparisons Davids Island is located approximately 3,700 feet from the coast of New Rochelle. Some
Currently, water-based transportation is the only means by which one can reach Davids
development scenarios for Davids Island would necessitate the need for a causeway or
Island. The waterway is a navigable area, and therefore any bridge that would be built from
bridge to connect Davids Island to the mainland. Constructing such a bridge would require
the mainland to Davids Island would have to be constructed to allow for boat clearance.
a significant investment in local infrastructure, and the costs and benefits of constructing such a project would need to be evaluated further.
68
69
bridge construction - initial cost estimates davids island bridge, preliminary cost breakdown assuming 3,000 LF at 45' in width, approx two lanes, equal to 135,000 gsf type
$ per sf
deck
175
fdn
90
rail
44
mep reloc & coord
15
lighting & other
50
Subtotal
direct / trade costs steel framing, deck, concrete, wp, concrete earing surface $1,000/lf at two sides, or $2,000 per lf, converted to sf robert moses causeway bridge
$ 374
xanadu proposed bridge
50,490,000
allow add for approaches, assume equal to cost of bridge 50,490,000
approaches total estimated bridge and approaches, trade costs project logistics @ 12%
100,980,000 12,117,600
new subtotal project general conditions @ 20%
113,097,600 22,619,520
new subtotal contractor profit and fee @ 7.5%
135,717,120 10,178,784 145,895,904
estimated total hard costs soft costs, design fees @ 20%
29,179,181
other fees and permits @ 5%
7,294,795 36,473,976
estimated total soft costs
south padre island, tx
182,369,880
hard and soft costs
18,236,988
design and construction contingency @ 10% estimated bridge total
causeway, florida
$
200,606,868
sbi consultants, estimated bridge construction costs
Certain development scenarios will trigger the need for vehicular access to Davids Island which would require additional design information including geotechnical and environmental studies. Assuming a two-lane, 3,000 foot long bridge, SBI Consultants provided the above order of magnitude cost estimate in the amount of $200,606,868 which includes hard and soft costs for the bridge and approaches, as well as contingency. Since it is a preliminary, order of magnitude estimate, SBI will revisit the assumptions stated after the issuance of the geotechnical and environmental studies. 70
mud island, tennessee
rickenback causeway, miami, fl 71
executive summary matrix Infrastructure triggers and zoning requirements
legend
72
73
scenario viability
next steps in planning process
Comparisons
PRE-PLANNING
SCENARIO DEVELOPMENT STAKEHOLDER IDENTIFICATION INITIAL OUTREACH
ALTERNATIVE DEVELOPMENT FACILITATED STAKEHOLDER OUTREACH PUBLIC CHARETTES
PREFERRED ALTERNATIVE DEVELOPMENT PUBLIC OUTREACH FACILITATED STAKEHOLDER OUTREACH
PREFERRED ALTERNATIVE REFINEMENT PUBLIC OUTREACH DEIS STAKEHOLDER PROCESS
PLAN DEVELOPEMNT PUBLIC OUTREACH EIS STAKEHOLDER PROCESS
PRELIMINARY STUDY
VISION/GOALS/OBJECTIVES
regulatory review, discussions, address contraints site analysis, economic study
sustainability framework, performance criteria
masterplanning study of alternatives
funding, facilities, benefit, fiscal studies
PREFERRED ALTERNATIVE SELECTION
preferred other alternative studies, development fiscal impact, financing plan development (1) RFEI/RFP preparation
• Economic impacts concern the fiscal consequences of the requisite development solution on the City’s tax base, on the City’s employment development prospects, and with respect to the City’s economic development goals; costly infrastructure requirements for a given scenario may lead to a relatively unfavorable assessment in this category • Social impacts refer to the consequences of the each development scenario on the perceived quality of life and aesthetics, including the quality and availability of open space; disruptive visual elements may lead to a relatively unfavorable assessment in this category, while quality park and open space may lead to a relatively favorable assessment • Environmental impacts concern the strength of the scenario’s habitat conservation measures and the size of the project’s footprint in terms of energy, water, waste and carbon emissions As previously discussed, each variable is assessed on a 5 point scale, where 1 is the most negative and 5 is the most positive, and where 3 represents the status quo in terms of the net effect of the scenario’s impacts. Each scenario is evaluated for each the three variables and an aggregate “viability” score derived by taking an average of the three scores is cited.
PRELIMINARY MASTER PLAN DEVELOPMENT
developer selection process/ proposal preparation FINAL PLAN DEVELOPMENT
DEIS process
KPF’s survey of preliminary concepts for David’s Island takes into account the triple bottom line impact of each scenario profiled: economic, social and environmental. Each of these three variables are evaluated for the project impacts qualitatively and quantitatively:
74
ALTERNATIVES IDENTIFICATION
(2) final plan development and presentation (3) EIS process
(1) Developer request for expressions of interest, developer request for proposals (2) NYS draft environmental impact assessment (3) NYS environment impact assessment
These “viability” scores reflect only KPF’s preliminary assessment of the three impacts taken into account. They do not constitute a recommendation for one scenario over another, and they do not take into account other considerations that will be of overriding importance to stakeholders, the City and the public. These other considerations might include variables such as considerations of political process, public values and preferences, regulatory compliance, civic values, and others. The variables not taken into account may, in fact, have greater determinative value than the triple bottom line variables given consideration in this report. This study may be followed by a more comprehensive and integrated planning process for the island, that will identify and then incorporate all of the variables deemed relevant by the City of New Rochelle and its residents and other stakeholders. Generally speaking, KPF would expect that the City will, with public and stakeholder input, wish to identify a smaller number of scenarios as alternatives for further investigation. These alternatives may be designed and visualized architecturally, at a schematic level, and their infrastructure and planning requirements defined in sufficient detail, to allow for an informed public process. Once a preferred alternative is selected or, at least, identified and indicated, the more procedural environmental impact process may be used to further test viability and suitability. Simultaneously, the City may wish to begin the process for soliciting and receiving feedback and proposals from private sector developers. This planning process is graphically illustrated above. A rigorous and broad-based public planning and feedback process will provide the City’s leaders with the guidance they need to select the solution for David’s Island that is most appropriate for New Rochelle. 75
appendix
76
77
new rochelle zoning codes
Article IX: Dimensional and Other Requirements (331-68 Planned Waterfront Development – 8 story district) – Davids Island discussed in this section A. Design and development criteria. -
The maximum building height allowed is eight stories.
-
The maximum allowed floor area ratio (FAR) for water-dependent permitted uses
- Building Roofs. shall be designed to minimize the visibility of roof structures,
mechanical equipment and other structures normally built above the roof. Not part of 40% open space requirement.
Setbacks, corner treatments, and other design details shall be used to minimize the sense
of bulk of structures. Facade treatment, building materials, and ornamental elements shall be used as appropriate to enhance and restore Fort Slocum’s historical waterfront context,
shall not exceed 1.0. For one-family, two-family, and multifamily residential use, including
complementing the character and scale of mainland buildings which commonly use red
independent living senior developments, the FAR shall not exceed 0.75 and the density limit
brick, stucco and concrete materials, have a maximum building height of eight stories, and
shall not exceed 22 dwelling units per acre. For all other water-dependent special permit
provide variety in building heights and widths.
nonresidential uses, the FAR shall not exceed 0.40. FAR shall be calculated separately for each use and shall not be cumulative for mixed-use projects. -
Open Space, both accessible and non-accessible to public shall be no less that 40% of DI
total upland area. No less than 25% of w total upland area shall be accessible to the public -
Vegetated Buffers. As viewed from the mainland or Long Island Sound, David’s Island
shall provide the appearance of a horizontal hedge of vegetation and tree canopy which, between ground level and 30 feet above ground level, appears no less than 50% solid, so as to preserve the appearance of a heavily vegetated island and to reduce the vertical scale of buildings facing the mainland or Long Island Sound. -
Setbacks. All buildings and structures, except those needed for a water-dependent use,
shall be set back from the mean high-tide line a minimum of 35 feet where there is a seawall, or 80 feet where there is no seawall, unless a greater setback is needed to provide the previously mentioned horizontal hedge of vegetation and tree canopy. Structures permitted within a waterfront yard area shall be durable, non-obtrusive, harmonious, and unified in terms of color and materials, including exterior lighting, walkways, fences, benches, signs, piers, and docks. -
Traffic Implications. shall not result in mainland intersection traffic capacity below level
-
Architectural Style. Future buildings shall reflect period styles and architectural details of
existing National Register eligible buildings -
Buildings and spaces shall direct views and pedestrian movements towards the water
-
Any proposed marina should be located on the western edge of the Island because of
the proximity to the existing navigational channels, the lack of underwater shoals, and the protection afforded from prevailing storms -
Transportation to the Mainland. Waterborne public transportation is the preferred
means of providing access to David’s Island. Access shall be provided by bridge only where the project proponent demonstrates, by competent financial evidence, that the proponent cannot realize a reasonable return by utilizing any other means of access to the Island. -
Mainland Access Roads may be at following locations: Glen Island Access Road, Fort
Slocum Road, Drake Avenue, Pelham Road, Weyman Avenue and Drake Avenue Article IV: General District Regulations [10-20-2009 by Ord. No. 199-2009 -
No building or structure or parking lot or parking space shall be constructed within 75
feet of the boundary of any tidal or freshwater wetland, other than boardwalks, shoreline promenades, bulkheads, piers, docks, marinas, boat ramps and boat-launching facilities, etc.
of service “c” (level of service “c” is a delay at signalized intersections of less than 20 seconds and no more than 35 seconds per vehicle).
78
79
task force interim report february 2011
80
81
David's Island David's Island land use Land-use Program Scenarios Land-use Program Scenarios DRAFT - For Discussion
DRAFT - For Discussion Land-use
Land-use
Gross Roads/ Infrastruc-Developable AreaOSR ture
Roads/ SingleFamilyInfrastrucTotal Residential Row ture Houses
SingleCommunity Community Family Mixed-use Retail/ Multi-Unit Retail/ Industrial/ Industrial/ Facilities/ Mixed-use Facilities/ Multi-Unit OSR Residential Residential Residential Row Houses ServicesResidential SchoolResidential Club/Marina Services School Commercial Club/Marina Utilities Commercial Resort/Hotel Resort/Hotel
Gross Developable Area
Total
acres
%
%
acres %
% %
% %
% %
% %
% %
% %
Scenario 1 - Open Parkland
Scenario45.10 1 - Open Parkland 100%
0%
45.10100%
100% 0%
0%0%
100% 0%
0%0%
0%0%
Scenario 2 - PV Cells
Scenario45.10 2 - PV Cells
100%
10%
45.10 0%
100% 0%
10%0%
0%0%
0%0%
Scenario 3 - Wind Turbines
Scenario45.10 3 - Wind Turbines 100%
10%
45.10 0%
100% 0%
10%0%
0%0%
Scenario 4 - Green House
Scenario45.10 4 - Green House 100%
10%
45.10 0%
100% 0%
10%0%
Scenario 5 - R&D & Hotel/Conference
Scenario45.10 5 - R&D & Hotel/Conference 24% 100%
45.10 10%
100%10%
Scenario 6 - Low Density Detached
Scenario45.10 6 - Low Density Detached 100%
18%
45.10 6%
Scenario 7 - Low & Medium Density
Scenario45.10 7 - Low & Medium 100%Density
22%
Scenario 8 - High Density Rows
Scenario45.10 8 - High Density Rows 100%
Scenario 9 - High Density Multi-unit David's Scenario45.10 9 - High Density Multi-unit 100% David's Island Island
%
%
%
%
%
%
0%0%
0% 0%
0%
0%
0%
0%0%
0%0%
0% 0%
0%
0%
0%0%
0%0%
0%0%
0% 0%
0%
0%0%
0%0%
0%0%
0%0%
0% 0%
24%11%
10% 4%
10%0%
11%0%
4% 2%
0% 3%
100%68%
18%0%
6%0%
68%0%
0%0%
0%0%
0% 3%
45.10 10%
100%41%
22%10%
10% 5%
41%0%
10% 2%
5% 2%
24%
45.10 10%
100% 0%
24%31%
10%10%
0% 5%
31%0%
26%
45.10 10%
100% 5%
26%14%
10% 8%
5% 5%
14%0%
%
Utilities
%
%
%
%
0%
0% 0%
0%
0%
0%
0%
0%
0% 90%
0%
0%
90%
0%
0%
0%
0% 90%
0%
0%
90%
0%
0%
0% 80%
0% 10%
0%
80%
10%
0%
16%
2%
15%
3% 5%
16%
15%
5%
0%
0%
0%
0%
3% 5%
0%
0%
5%
0% 3%
2%
0%
2%
0%
3% 5%
0%
0%
5%
10% 2%
5% 3%
0% 10%
2%
0%
3% 5%
10%
0%
5%
8%14%
5% 3%
0% 10%
14%
0%
3% 5%
10%
0%
5%
SingleRoads/ SingleCommunity Community Net InfrastrucMixed-use Retail/ Multi-Unit Retail/ Industrial/ Industrial/ Family Family Facilities/ Mixed-use Facilities/ Multi-Unit Open SpaceDevelopable Residential Row ture Houses Open Residential Space Residential Residential Row Houses ServicesResidential SchoolResidential Club/Marina Services Commercial Club/Marina Utilities Total Resort/Hotel School Resort/Hotel Commercial
Utilities
Land-use Program Scenarios Land-use Program Scenarios DRAFT - For Discussion
DRAFT - For Discussion Net Total Developable acres
Roads/ Infrastructure
acres
acres
acres acres
acres acres
-
45.145.1
- -
acres acres -
acres acres
Scenario 1 - Open Parkland
Scenario 145.1 - Open Parkland -
Scenario 2 - PV Cells
Scenario 245.1 - PV Cells
40.6
4.5
45.1 -
40.6-
4.5 -
-
Scenario 3 - Wind Turbines
Scenario 345.1 - Wind Turbines 40.6
4.5
45.1 -
40.6-
4.5 -
Scenario 4 - Green House
Scenario 445.1 - Green House 40.6
4.5
45.1 -
40.6-
4.5 -
Scenario 5 - R&D & Hotel/Conference
Scenario 545.1 - R&D & Hotel/Conference 29.8 10.8
45.14.5
29.8 4.5
10.8 5.0
4.5 1.8
4.5 -
Scenario 6 - Low Density Detached
Scenario 645.1 - Low Density34.3 Detached
8.1
45.12.7
34.330.7
8.1 -
2.7 -
30.7 -
Scenario 7 - Low & Medium Density
Scenario 745.1 - Low & Medium 30.7Density
9.9
45.14.5
30.718.5
9.9 4.5
4.5 2.3
18.5 -
Scenario 8 - High Density Rows
Scenario 845.1 - High Density 29.8 Rows
10.8
45.14.5
29.8-
10.814.0
4.5 4.5
-
Scenario 9 - High Density Multi-unit
Scenario 945.1 - High Density 28.9 Multi-unit
11.7
45.14.5
28.9 2.3
11.76.3
4.5 3.6
-
45.1 -
acres acres
acres acres
acres acres
acres acres
acres acres
acres acres
acresacres
acres
acres
acres
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
40.6
-
-
40.6
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
40.6
-
-
40.6
-
-
-
-
-
-
-
-
-
-
-
-
-
36.1
-
4.5
-
36.1
4.5
1.8 0.9
-
1.4
-
7.2
0.9
6.8
1.4 2.3
7.2
6.8
2.3
-
-
1.4
-
-
-
-
1.4 2.3
-
-
2.3
-
1.4
0.9
-
0.9
-
1.4 2.3
-
-
2.3
5.0 -
-
4.5 0.9
-
2.3 0.9
2.3
14.0 -
4.5 0.9
2.3 1.4
-
4.5
0.9
-
1.4 2.3
4.5
-
2.3
2.32.3
6.3 -
3.6 6.3
2.3 1.4
-
4.5
6.3
-
1.4 2.3
4.5
-
2.3
ARUP 82
83
David's Island
David's Island
Land-use Program Scenarios Land-use Program Scenarios DRAFT - For Discussion far
DRAFT - For Discussion FAR
FAR
Net FAR
Gross FAR
FAR
FAR
Scenario 1 - Open Parkland
Scenario 1 --Open Parkland -
Scenario 2 - PV Cells
Scenario0.02 2 - PV Cells
SingleSingleCommunity Community Mixed-Use Mixed-Use Family Mixed-use Family Retail/ Multi-Unit Retail/ Industrial/ Industrial/ Residential Residential Multi-Unit Facilities/ Mixed-use Facilities/ Retail Gross Residential Row Houses Residential Retail Residential Residential Row Houses ServicesResidential SchoolResidential Club/Marina Services School Commercial Club/Marina Utilities Commercial Net FAR FAR Resort/Hotel Resort/Hotel FARFAR - -
0.02
Scenario0.02 3 - Wind Turbines arup information 0.02
Scenario 3 - Wind Turbines
FARFAR
FAR
FARFAR
FARFAR
FARFAR
FAR FAR
FAR
FAR
FAR
FAR
FAR FAR
-
-
-
-
- -
- -
- -
-
-
-
-
-
-
-
0.02 -
0.02 -
-
-
-
- -
- -
- -
-
-
-
-
-
-
-
0.02 -
0.02 -
-
-
-
- -
- -
- -
-
-
-
-
-
-
-
-
- -
- -
- -
-
-
-
-
-
0.50 -
0.75-
1.001.00
-
0.50
-
1.00
1.00 0.50
-
-
-
-
-
Scenario 4 - Green House
Scenario 0.27 4 - Green House 0.24
0.27-
0.24 -
-
Scenario 5 - R&D & Hotel/Conference
Scenario0.69 5 - R&D & Hotel/Conference 0.46
0.69 -
0.50 0.46
0.75
Scenario 6 - Low Density Detached
Scenario 0.28 6 - Low Density0.22 Detached
0.28-
0.220.29
Scenario 7 - Low & Medium Density
Scenario 71.03 - Low & Medium 0.70Density
1.03-
0.701.00
1.10
Scenario 8 - High Density Rows
Scenario 1.96 8 - High Density1.30 Rows
1.960.55
1.301.00
Scenario 9 - High Density Multi-unit
Scenario 93.17 - High Density Multi-unit 2.03
3.171.00
2.031.00
David's Island program
FARFAR
- 1.00 -
-
FAR
Utilities
FAR
FAR
-
-
0.02
-
-
0.02
-
0.02
-
-
0.02
-
0.02
-
0.30
0.02
0.50 0.25
1.00
0.50
0.25
-
0.20 0.25
-
-
0.25
1.50
-
1.00 0.25
-
-
0.25
0.30
-
0.29-
-
- -
-
0.20
- 2.00
1.00-
1.100.50
2.001.50
-
1.00
1.25
4.00 0.55
1.004.50
1.25-
4.002.00
4.50 1.00
-
2.00
2.00
-
1.00 0.25
2.00
-
0.25
1.75
8.00 1.00
1.00 10.00
1.75-
8.002.50
10.00 1.00
-
2.00
2.50
-
1.00 0.25
2.00
-
0.25
-
0.50
David's Island
Land-use Program Scenarios Land-use Program Scenarios
DRAFT - For Discussion
DRAFT - For Discussion Program
Total
Program
Total Residential
arup information sq ft sq ft Scenario 1 - Open Parkland
Scenario 1 - -Open Parkland -
Scenario 2 - PV Cells
Scenario35,362 2 - PV Cells
Scenario 3 - Wind Turbines
Scenario35,362 3 - Wind Turbines -
Scenario 4 - Green House
Scenario 475,423 4 - Green House-
Total NonResidential sq ft
SingleTotal SingleCommunity Community Mixed-use Mixed-use Total Family Mixed-use Family Retail/Multi-Unit Retail/ Resort/ Industrial/ Residential Non- Residential Facilities/ Mixed-use Facilities/ Multi-Unit Total RetailResidential ResidentialResidential Row Houses Residential Retail Residential Residential Row Houses ServicesResidential SchoolResidential Club/Marina Services Hotel School Commercial Club/Marina Utilities sq ft sq ft
sq ft sq ft
sq ft sq ft
sq ft sq ft
sq ft sq ft
sq ft sq ft
sq ftsq ft
sq ft sq ft
sq ft sq ft
sq ft sq ft
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
35,362
35,362 -
-
-
35,362 -
-
-
-
-
-
-
-
-
-
-
-
-
-
-
35,362
35,362 -
-
-
35,362 -
-
-
-
-
-
-
-
-
-
-
-
-
-
-
475,423
475,423 -
-
-
475,423 -
-
-
-
-
-
-
-
-
-
-
-
-
- 471,493
Scenario 5 - R&D & Hotel/Conference Scenario 893,873 5 - R&D & Hotel/Conference 554,987 338,886
893,873 -
98,228 338,886
554,987 162,076
78,582 -
98,228 -
Scenario 6 - Low Density Detached
Scenario 423,755 6 - Low Density Detached 36,344 387,410
423,755 -
387,410 387,410
36,344 -
-
387,410 -
-
Scenario 7 - Low & Medium Density
Scenario 1,380,101 7 - Low & Medium 1,218,025Density 162,076
1,380,101 -
805,468 1,218,025
162,076 216,101
196,456 -
805,468 -
216,101 19,646
196,456 58,937
-58,937
Scenario 8 - High Density Rows
Scenario 2,544,100 8 - High Density Rows 1,935,088
1,935,088 -
609,012 761,265
54,025 785,822
388,000 -
761,265 -
785,822 78,582
Scenario 9 - High Density Multi-unit
Scenario 3,983,137 9 - High Density Multi-unit 1,262,227 2,720,910
98,228 2,720,910
1,262,227 481,316
98,228 1,257,316
98,228 884,050
481,316 -
1,257,316 687,595
-
-
-
sq ft sq ft
609,012 2,544,100 54,025 3,983,137 98,228
-
162,076 -
-
sq ft
sq ft -
-
- 35,362
-
-
35,362
- 35,362
-
-
35,362
- 3,929
-
471,493
3,929
314,329
147,342
24,557
29,468 -
- 314,329 39,291147,342 29,46824,557
-
- 11,787
-
-
11,78724,557
-
-
24,557
58,937
-
58,93724,557
-
-
24,557
388,000 58,937
- 392,911 78,582
-
58,93724,557
392,911
-
24,557
884,050 58,937
- 392,911 687,595
-
58,93724,557
392,911
-
24,557
19,646
-
-
sq ft
Utilities
-
78,582 39,291 -
Resort/ Industrial/ Hotel Commercial
ARUP 84
85
David's Island
David's Island
Land-use Program Scenarios
Land-use Program Scenarios
DRAFT - For Discussion
DRAFT - For Discussion
statistics
Statistics
Statistics
Scenario 1 - Open Parkland Scenario 2 - PV Cells
Net FAR
Housing Units
Single Family Hsg Units
FAR
units
units
Single Peak Multi-Unit HousingHousing Residential Population Employees Residential - Employees Population Jobs/ Employees Retail - Space/ Jobs/ Family Hsg Multi-Unit School AgeHousing School Age Employees - Tourist Units Net FAR Density Population Units Units Density (2) Children Units (2) Density Outgoing Population (2) Incoming Density Residents (2) Children Hotel Rooms Population (2) Incoming person Residents (2) Outgoing
-Scenario 1 - Open - Parkland 0.02 Scenario 2 - PV- Cells
DU/DUA FAR -
-
sq ft
%
-
persons units -
-
pop/dev ac units -
-
persons DU/DUA persons persons persons units pop/dev ac -
-
-
-
-
-
-
0%
%persons rooms persons guests persons -
-
-
-
-
-
0%
-
-
-
-
-
-
-
-
-
33
-
0%
-
-
-
-
33
-
0%
-
-
-
-
-
-
33
-
0%
-
-
-
-
33
-
0%
-
-
-
-
-
240
-
0%
-
-
-
-
240
-
0%
-
-
-
718 554
-
0.02
-
-
-
-
Scenario 3 - Wind Turbines
0.02 Scenario 3 - Wind - Turbines -
-
0.02
-
-
-
-
-
-
-
Scenario 4 - Green House
0.27 Scenario 4 - Green House
-
0.27
-
-
-
-
-
-
-
-
0.69
21.1
238 485
164
39
21.1 336
16.3
165%
39
299
336
64
6.9
67
133
235
54
6.9
41%
67
-
133
418
33.7
157 149
22.8 685
1,032
248
33.7
36%
149
-
685
2,812
831
94.5
42%
307
491 1,992
1,178
4,579 1,622
158.6
45%
357
491 3,610
arup information
-
units
-
Scenario 5 - R&D & Hotel/Conference
0.69 Scenario 5 - R&D 238 & Hotel/Conference 164
Scenario 6 - Low Density Detached
0.28 Scenario 6 - Low 64 Density Detached 64
-
0.28
2.1
64 235
Scenario 7 - Low & Medium Density
1.03 Scenario 7 - Low 575 & Medium418 Density
157
1.03 22.8
575 1,032
Scenario 8 - High Density Rows
1.96 Scenario 8 -1,415 High Density Rows 435
980
1.96 68.2
1,415 2,812
435 94.5
980 307
68.2 1,992
Scenario 9 - High Density Multi-unit
3.17 Scenario 9 -2,511 High Density Multi-unit 384
2,127
3.17 174.0
2,511 4,579
384 158.6
2,127 357
174.0 3,610
74
Hotel Rooms
Peak Tourist Retail Space/ Population person
16.3
74 -
2.1
485 554
rooms
guests
sq ft
-
165%
299
718
-
-
54
-
41%
-
-
-
-
248
19.0
36%
-
-
19.0
831
19.2
42%
491
1,178
19.2
1,178 1,622
21.5
45%
491
1,178
21.5
(1) The Pootatuck/Newtown Acquifer Protection District, Connecticut, serves 1,153 households. (1) The Pootatuck/Newtown Acquifer Protection District, Connecticut, serves 1,153 households. (2) NYS RDM values for suburban, high income by housing typology (bedrooms/unit size, and bdgby type). (2) NYS RDM values for suburban, high income housing typology (bedrooms/unit size, and bdg type). (3) Per NYSSED guidelines (3 acres + 1 add'l acre for (3) every students) Per100 NYSSED guidelines (3 acres + 1 add'l acre for every 100 students)
ARUP 86
87
David's Island
David's Island
DRAFT - For Discussion
DRAFT - For Discussion
Land-use Program Scenarios Land-use Program Scenarios employment space/employee Employment Space/Employee
Employment Space/Employee
Retail/ Services
Community Facilities/ School
Club/ Marina
sq ft/emp
sq ft/emp
sq ft/emp
Retail/ Resort/ Industrial/ Services Hotel Commercial emp/rm
ft/emp sqsq ft/emp
Community Facilities/ School Utility
Municipal Club/ Marina Services
Resort/ Resort/ Industrial/ Resort/ Hotel Hotel Commercial Hotel
ft/emp sqsq ft/emp
% resi. pop. sq ft/emp
sq ft/rm avg occup.% emp/rm sq ft/emp
Resort/ Utility Hotel
Municipal Services
guests/rm sq ft/emp % resi. pop.
Resort/ Hotel
Resort/ Hotel
Resort/ Hotel
sq ft/rm avg occup.%
guests/rm
Scenario 1 - Open Parkland
1 - Open Parkland 750 Scenario 1,000 900
0.80
750 800
1,000 1,100
9007%
0.80 800
800 80%
1,100 2.40
7%
800
80%
2.40
Scenario 2 - PV Cells
2 - PV Cells 750 Scenario 1,000
900
0.80
750 800
1,000 1,100
9007%
0.80 800
800 80%
1,100 2.40
7%
800
80%
2.40
Scenario 3 - Wind Turbines
3 - Wind Turbines 750 Scenario 1,000 900
0.80
750 800
1,000 1,100
9007%
0.80 800
800 80%
1,100 2.40
7%
800
80%
2.40
Scenario 4 - Green House
4 - Green House 750 Scenario 1,000 900
0.80
2,000 750
1,000 1,100
9007%
0.80 800
2,000 80%
1,100 2.40
7%
800
80%
2.40
Scenario 5 - R&D & Hotel/Conference
5 - R&D & Hotel/Conference 750 Scenario 1,000 900 0.80
750 800
1,000 1,100
9007%
0.80 1,050
800 80%
1,100 2.40
7%
1,050
80%
2.40
Scenario 6 - Low Density Detached
6 - Low Density Detached 0.80 750 Scenario 1,000 900
750 800
1,000 1,100
9007%
0.80 800
800 80%
1,100 2.40
7%
800
80%
2.40
Scenario 7 - Low & Medium Density
7 - Low & Medium 750 Scenario 1,000 900 Density 0.80
750 800
1,000 1,100
9007%
0.80 800
800 80%
1,100 2.40
7%
800
80%
2.40
Scenario 8 - High Density Rows
8 - High Density 750 Scenario 1,000 900Rows
0.80
750 800
1,000 1,100
9007%
0.80 800
800 80%
1,100 2.40
7%
800
80%
2.40
Scenario 9 - High Density Multi-unit
9 - High Density 750 Scenario 1,000 900Multi-unit0.80
750 800
1,000 1,100
9007%
0.80 800
800 80%
1,100 2.40
7%
800
80%
2.40
Utility
Municipal Services
Total Workers
Resort/ Hotel
Resort/ Hotel
sqworkers ft/emp workers sq workers ft/emp workers % resi. pop. workers sqworkers ft/rm avg occup.% guests/rm workers rooms workers peak pop. workers workers
workers
workers
rooms
peak pop.
David's Island
Land-use Program Scenarios employment statistics DRAFT - For Discussion
Employment Space/Employee Employment Statistics
Employment Statistics
Retail/ Retail/ Services Services
Community Community Facilities/ Facilities/ School School
Club/ Club/ Marina Marina
sq ft/emp workers
sqworkers ft/emp
sqworkers ft/emp
Community Resort/ Municipal Resort/ Resort/ Resort/ Resort/ Industrial/ Retail/ Club/ Resort/ Resort/ Facilities/ Municipal Total Resort/ Hotel Utility Services Hotel Hotel Hotel Hotel Commercial Industrial Services Utility School Workers Hotel Hotel Industrial Hotel Services Marina emp/rm workers
Scenario 1 - Open Parkland
- 750
1,000 -
900 -
0.80 -
800 -
-
1,100 -
-
7% -
- 800
- 80%
- 2.40
-
-
Scenario 2 - PV Cells
- 750
1,000 -
900 -
0.80 -
800 -
-
1,10033
-
7% -
- 80033
- 80% -
- 2.40 -
33
-
33
-
-
Scenario 3 - Wind Turbines
- 750
1,000 -
900 -
0.80 -
800 -
-
1,10033
-
7% -
- 80033
- 80% -
- 2.40 -
33
-
33
-
-
Scenario 4 - Green House
- 750
1,000 -
900 -
0.80 -
2,000 236
-
1,100 4
-
7% -
4
-
Scenario 5 - R&D & Hotel/Conference
- 750
1,000 40
900 33
0.80 239
800 185
-
1,10023
Scenario 6 - Low Density Detached
- 750
1,000 -
900 14
0.80 -
800 -
-
1,10023
Scenario 7 - Low & Medium Density
750 27
1,000 59
900 66
0.80 -
800 -
27 1,10023
Scenario 8 - High Density Rows
750 73
1,000 79
900 66
0.80 393
800 -
73 1,10023
Scenario 9 - High Density Multi-unit
750 131
1,000 688
900 66
0.80 393
800 -
131 1,10023
-
-
-
- 800 240
- 80% -
2362.40 -
240
-
-
40 7% 34
1,050 33 554
23980% 299
1852.40 718
23
34
554
299
718
7%17
1480054
- 80% -
- 2.40 -
23
17
54
-
-
59 7%73
66800 248
- 80% -
- 2.40 -
23
73
248
-
79 7% 197
66800 831
39380% 491
- 2.40 1,178
23
197
831
491
1,178
688 7% 321
66800 1,622
39380% 491
- 2.40 1,178
23
321
1,622
491
1,178
-
-
ARUP 88
89
David's Island
units Land-use Program Scenarios DRAFT - For Discussion Units SingleFamily Residential Row Houses units
units
Multi-Unit Residential
Mixed-use Residential
units
units
Residential Population SingleFamily Total Residential Row Houses units
School Age Children
Workers in Residence
Multi-Unit Residential
Mixed-use Residential
Total
Single-Family Residential
Row Houses
Multi-Unit Residential
Mixed-use Residential
Total
Single-Family Residential Row Houses
Multi-Unit Residential
Mixed-use Residential
Total
persons
persons
persons
persons
persons
persons
persons
persons
persons
persons
persons
persons
persons
persons
persons
Scenario 1 - Open Parkland
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Scenario 2 - PV Cells
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Scenario 3 - Wind Turbines
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Scenario 4 - Green House
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
238
122
232
-
485
13
336
-
-
64
235
-
-
-
235
67
157
-
575
777
255
-
-
1,032
92
Scenario 5 - R&D & Hotel/Conference
53
Scenario 6 - Low Density Detached
64
Scenario 7 - Low & Medium Density
328
Scenario 8 - High Density Rows
-
Scenario 9 - High Density Multi-unit
53
111 90
74
131
435
628
352
1,415
-
970
1,181
662
2,812
331
1,197
930
2,511
122
692
2,119
1,646
4,579
13
16 58
10
-
39
79
150
107
-
-
-
67
133
-
-
-
133
-
-
149
512
174
-
-
685
-
639
867
486
1,992
447
1,736
1,349
3,610
Multi-Unit Residential
Mixed-use Residential
emp/unit
emp/unit
170
88
49
307
46
168
130
357
79
David's Island
units - sizes Land-use Program Scenarios DRAFT - For Discussion SingleFamily Residential Row Houses units Scenario 1 - Open Parkland
-
units -
Multi-Unit Residential
Mixed-use Residential
units
units
-
-
SingleFamily Residential Row Houses pop/unit -
pop/unit -
Multi-Unit Residential
Mixed-use Residential
Single-Family Residential
Row Houses
Multi-Unit Residential
Mixed-use Residential
pop/unit
pop/unit
pupil/unit
pupil/unit
pupil/unit
pupil/unit
-
Single-Family Residential Row Houses emp/unit
emp/unit
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Scenario 2 - PV Cells
-
-
-
-
-
-
-
-
-
Scenario 3 - Wind Turbines
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Scenario 4 - Green House
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1,850
1,450
1,050
950
2.31
1.77
1.77
0.25
0.14
0.14
0.14
1.49
1.35
1.45
1.45
-
Scenario 5 - R&D & Hotel/Conference
2.09
Scenario 6 - Low Density Detached
6,000
-
-
-
3.67
-
-
-
1.05
Scenario 7 - Low & Medium Density
2,450
2,400
1,250
-
2.37
2.83
-
-
0.28
-
2.23
1.88
1.88
2.31
2.09
1.77
1.77
Scenario 8 - High Density Rows Scenario 9 - High Density Multi-unit
-
1,750
1,250
1,100
1,850
1,450
1,050
950
-
-
2.08
-
0.64
-
-
1.56
1.93
-
0.39
0.14
0.14
-
1.47
1.38
1.38
0.25
0.14
0.14
0.14
1.49
1.35
1.45
1.45
ARUP 90
91
David's Island
David's Island
Land-use Program Scenarios
Land-use Program Scenarios
DRAFT - For Discussion
DRAFT - For Discussion
infrastructure
Infrastruct
Infrastruct
Roof Area for PVs (overlapping PV Coverage w/ Roof Area % greenroofs) sq ft Scenario 1 - Open Parkland Scenario 2 - PV Cells
%
sq ft
%
sq ftsq ft
Scenario 1 - 50% Open Parkland -
0%
-
-
50% 0%
-
-
0% -
0%
8,118
-
50% 0%
4,059
-
0%
8,118
-
50% 0%
4,059
0% 108,240
-
60% 0%
60% 100,799 60,479
80% 40%
8,118 Scenario 2 -50% PV Cells
Scenario 3 - Wind Turbines
Roof Area Roof Area Roof Area for Roof Roof Area for PVsArea for Greenroofs Dual for Dual Dual (overlapping Greenroofs for Dual PV Coverage Greenroof (overlapping Area &Greenroof (overlapping Greenroof 80m&Wind Greenroof & Roofw/ Roof Area & Coverage %Roof Area w/ PVs) PV Roof %Area greenroofs) Greenroofs Coverage PV Farm %Area Total w/ PVs) PV Area PV Roof Area Turbines Greenroofs PV Farm Area Total PV Area
4,059
8,118 Scenario 3 -50% Wind Turbines 4,059
Scenario 4 - Green House
108,240 Scenario 4 -60% Green House 64,944
Scenario 5 - R&D & Hotel/Conference
100,799 Scenario 5 -80% R&D & Hotel/Conference 80,639
%
%
sq ftsq ft
%acres
sq ftsq ft
%units
sq ft
acres
sq ft
80m Wind Turbines units
--
0% -
-
-
-
0%40.6
888,109
0% -
-
40.6
888,109
-
-
0% 2.7
62,865
0% 10
-
2.7
62,865
64,944 38,966
0% 2.7
182,556
0% -
38,966
2.7
182,556
-
80,639 100,799
60% 2.7
60,479 198,251
40% -
100,799
2.7
198,251
-
-
10
Scenario 6 - Low Density Detached
69,680 Scenario 6 -75% Low Density52,260 Detached
60%
69,680 41,808
75% 50%
52,260 64,279
60% 2.7
41,808 169,872
50% -
64,279
2.7
169,872
-
Scenario 7 - Low & Medium Density
146,801 Scenario 7 -60% Low & Medium 88,080 Density
55%
146,801 80,740
60% 45%
88,080 97,255
55% 2.7
80,740 205,692
45% -
97,255
2.7
205,692
-
Scenario 8 - High Density Rows
141,840 Scenario 8 -60% High Density 85,104 Rows
65%
141,840 92,196
60% 50%
85,104 110,989
65% 2.7
92,196 202,716
50% -
110,989
2.7
202,716
-
Scenario 9 - High Density Multi-unit
134,398 Scenario 9 -60% High Density 80,639 Multi-unit
65%
134,398 87,359
60% 50%
80,639 105,166
65% 2.7
87,359 198,251
50% -
105,166
2.7
198,251
-
David's Island Land-use Program Scenarios DRAFT - For Discussion
Coverage
Coverage
parcel coverage
Employment Space/Employee Community Retail/ Facilities/ Single-Family Services School Residential Row Houses sq ft/emp%
sq ft/emp%
Community Community Club/ Resort/ Industrial/ Municipal Resort/ Resort/ Resort/ Single-Family Standalone Standalone Facilities/ Facilities/ Industrial/ Industrial/ Marina Hotel Commercial Utility Services Hotel Hotel Hotel Multi-Unit Retail Residential Row Houses Multi-Unit Commercial Retail Utilities School Club/Marina Resort/Hotel Commercial School Club/Marina Resort/Hotel sq ft/emp%
emp/rm%
sq ft/emp %
% ft/emp % % % sq resi. pop. %
% % sq ft/rm % avg % occup.% % guests/rm
%
%
%
Utilities %
Scenario 1 - Open Parkland
750
1,000
900
0.80
800
1,100
7%
800
80% 2%
2.40
2%
Scenario 2 - PV Cells
750
1,000
900
0.80
800
1,100
7%
800
80% 2%
2.40
2%
Scenario 3 - Wind Turbines
750 0% 750
1,000 0% 1,000
900 0% 900
0.80 0% 0.80
800
80% 2%
2.40
40% 750 20% 750
55% 1,000
40% 900
0.80
Scenario 4 - Green House Scenario 5 - R&D & Hotel/Conference Scenario 6 - Low Density Detached Scenario 8 - High Density Rows
50% 750 50% 750
Scenario 9 - High Density Multi-unit
50% 750
Scenario 7 - Low & Medium Density
1,000 55% 1,000
900 40% 900
55% 1,000 55% 1,000
45% 900 45% 900
1,100 0% 0% 2,000 1,100 0% 0% 50% 40% 1,10050% 55% 800
7%
7%
0.80
20% 1,10020% 800 40% 50% 1,10050% 55% 800 45% 50% 1,10050% 55% 800
0.80
50% 50% 1,10050% 55% 800
0.80 50% 0.80
800 0% 0% 7% 80030% 0% 20%40% 1,05025% 7% 800-
0%
0%
30%
0%
80%25% 50% 2.40
50%
20%
25%
25%
80%25%
2.40
20%
-
25%
80%25% 40% 2.40
50%
-
25%
40%
800-
40% 45% 7% 40% 45% 7%
800-
80%25% 45% 2.40
50%
40%
-
25%
800-
80%25% 50% 2.40
50%
40%
-
25%
7%
50%
2%
80%0% 0% 2.40
ARUP 92
93
electricity demand with efficiency improvements
electricity demand
Electricity Demand - mWh/yr, after efficiency improvements
Electricity Demand - mWh/yr Commercial/ Industrial Institutional
Residential
Residential Multi
Residential
mWh/yr
mWh/yr
mWh/yr
mWh/yr
Scenario 1 - Open Parkland
-
-
-
Scenario 2 - PV Cells
-
-
Scenario 3 - Wind Turbines
-
Scenario 4 - Green House
-
Scenario 5 - R&D & Hotel/Conference
1,372
Hotel
Total
mWh/yr
mWh/yr
mWh/yr
-
-
-
-
-
-
191
-
191
-
-
-
191
-
191
-
-
849
21
-
870
2,109
504
344
1,716
4,558
10,602
Scenario 6 - Low Density Detached
1,339
-
1,339
-
196
-
2,874
Scenario 7 - Low & Medium Density
3,497
729
4,226
281
769
-
9,503
Scenario 8 - High Density Rows
3,033
4,551
7,584
773
875
5,697
22,514
Scenario 9 - High Density Multi-unit
2,677
9,878
12,555
1,406
4,164
5,697
36,377
pvs
Scenario 1 - Open Parkland
Commercial/ Industrial Institutional
Residential
Residential Multi
Residential
mWh/yr
mWh/yr
mWh/yr
mWh/yr
-
-
-
Hotel
Total
mWh/yr
mWh/yr
mWh/yr
-
-
-
-
Scenario 2 - PV Cells
-
-
-
-
152
-
152
Scenario 3 - Wind Turbines
-
-
-
-
152
-
152
Scenario 4 - Green House
-
-
-
594
17
-
611
1,621
401
Scenario 5 - R&D & Hotel/Conference
960
241
Scenario 6 - Low Density Detached
870
-
1,201 870
-
156
3,615 -
8,039 1,896
Scenario 7 - Low & Medium Density
2,448
510
2,958
216
612
-
6,745
Scenario 8 - High Density Rows
2,275
3,186
5,460
594
697
4,518
16,730
Scenario 9 - High Density Multi-unit
2,008
6,914
8,922
1,081
3,316
4,518
26,759
pvs with efficiency improvements PV, after efficiency improvements PV, after efficiency improvements
PV
PV
Total PV Area
Elect from Energy/ PV % Elect from % (Deficit)/ Energy/ PV PV Elec from SurplusPV PVPV Total PVArea Area Elec fromArea
1 - Open Parkland ario 1 - OpenScenario Parkland
ario 2 - PV Cells Scenario 2 - PV Cells
sq ft kWh/sq ft/yr sq ft kWh/sq ft/yr mWh/yr
mWh/yr %
10.9
0% -
-
-10.9
mWh/yr % - 0%
(Deficit)/ Surplus
Total PV Area
sq ft kWh/sq ft/yr sq ft kWh/sq ft/yr mWh/yr
mWh/yr -
888,109
888,109 10.9
9,658 10.9
5058% 9,658
9,467 5058%
9,467
ario 3 - Wind Scenario Turbines 3 - Wind Turbines
62,865
62,865 10.9
684 10.9
358% 684
493 358%
493
ario 4 - Green Scenario House 4 - Green House
182,556
182,556 10.9
1,985 10.9
228% 1,985
1,115 228%
1,115
ario 5 - R&DScenario & Hotel/Conference 5 - R&D & Hotel/Conference 198,251
198,251 10.9
2,156 10.9
20% 2,156
(8,446) 20%
(8,446)
ario 6 - LowScenario Density Detached 6 - Low Density Detached 169,872
169,872 10.9
1,847 10.9
64% 1,847
(1,026) 64%
(1,026)
ario 7 - LowScenario & Medium 7 -Density Low & Medium Density 205,692
205,692 10.9
2,237 10.9
24% 2,237
(7,266) 24%
(7,266)
ario 8 - High Scenario Density 8Rows - High Density Rows 202,716
202,716 10.9
2,205 10.9
2,205 10%
(20,309) 10%
(20,309)
ario 9 - High Scenario Density 9Multi-unit - High Density Multi-unit 198,251
198,251 10.9
2,156 10.9
2,156 6%
(34,221)6%
(34,221)
from (Deficit)/ Energy/ PV % Elect from % Elect Energy/ PV Area PV Elec fromPVPV SurplusPV Total PV Area Area Elec from
Scenario 1 - Open Parkland Scenario 1 - Open Parkland Scenario 2 - PV Cells Scenario 2 - PV Cells
888,109
mWh/yr %
10.9
-10.9
888,109 10.9
9,658 10.9
6352% 9,658
0% -
mWh/yr% - 0% 9,506 6352%
(Deficit)/ Surplus mWh/yr 9,506
Scenario 3 - Wind Turbines Scenario 3 - Wind Turbines
62,865
62,865 10.9
10.9 684
684 450%
450% 532
532
Scenario Scenario 4 - Green House4 - Green House
182,556
182,556 10.9
10.9 1,985
1,985 325%
325% 1,374
1,374
5 - R&D & Hotel/Conference Scenario 5 - R&DScenario & Hotel/Conference 198,251
198,251 10.9
10.9 2,156
2,156 27%
27% (5,883)
(5,883)
- Low Density Detached Scenario 6 - LowScenario Density 6Detached 169,872
169,872 10.9
10.9 1,847
1,847 97%
97% (49)
(49)
7 -Density Low & Medium Density Scenario 7 - LowScenario & Medium 205,692
205,692 10.9
2,237 10.9
2,237 33%
(4,508) 33%
(4,508)
Scenario 8 - High Scenario Density8Rows - High Density Rows202,716
202,716 10.9
2,205 10.9
2,205 13%
(14,526) 13%
(14,526)
Scenario 9 - High Scenario Density9Multi-unit - High Density Multi-unit 198,251
198,251 10.9
2,156 10.9
2,156 8%
(24,603) 8%
(24,603)
ARUP 94
95
PRE-PLANNING PRE-PLANNINGSCENARIO SCENARIO DEVELOPMENT DEVELOPMENT STAKEHOLDER STAKEHOLDER IDENTIFICATION IDENTIFICATION INITIALINITIAL OUTREACH OUTREACH
ALTERNATIVE ALTERNATIVE DEVELOPMENT DEVELOPMENT PREFERRED PREFERRED ALTERNATIVE ALTERNATIVE DEVELOPMENT DEVELOPMENT FACILITATED FACILITATED STAKEHOLDER STAKEHOLDER OUTREACH OUTREACH PUBLICPUBLIC CHARETTES CHARETTES
PUBLICPUBLIC OUTREACH OUTREACH FACILITATED FACILITATED STAKEHOLDER STAKEHOLDER OUTREACH OUTREACH
PREFERRED PREFERRED ALTERNATIVE ALTERNATIVE REFINEMENT REFINEMENT PLAN PLAN DEVELOPEMNT DEVELOPEMNT PUBLICPUBLIC OUTREACH OUTREACH DEIS STAKEHOLDER DEIS STAKEHOLDER PROCESS PROCESS
PUBLICPUBLIC OUTREACH OUTREACH EIS STAKEHOLDER EIS STAKEHOLDER PROCESS PROCESS
PRELIMINARY PRELIMINARY STUDYSTUDY
VISION/GOALS/OBJECTIVES VISION/GOALS/OBJECTIVES
regulatory regulatory review,review, discussions, discussions, address address contraints contraints site analysis, site analysis, economic economic study study
sustainability sustainability framework, framework, perfor-performancemance criteriacriteria
ALTERNATIVES ALTERNATIVES IDENTIFICATION IDENTIFICATION
masterplanning masterplanning study of study alternatives of alternatives
funding, funding, facilities, facilities, benefit, benefit, fiscal studies fiscal studies
PREFERRED ALTERNATIVE SELECTION PREFERRED ALTERNATIVE SELECTION
preferred preferred other other alternative alternative studies, studies, development development fiscal impact, fiscal impact, financing financing plan plan development development (1) (1) RFEI/RFP RFEI/RFP preparation preparation
PLANNING PROCESS
PRELIMINARY PRELIMINARY MASTER MASTER PLAN DEVELOPMENT PLAN DEVELOPMENT
developer developer selection selection process/ process/ proposal proposal preparation preparation FINAL PLAN FINALDEVELOPMENT PLAN DEVELOPMENT
(2) (2) DEIS process DEIS process
The Davids Island Study for the City of Rochelle begins a multi-stage planning process. Acceptance by the City of the study’s recommendations may be followed by a scenario development process, followed by scenario
final plan finaldevelopplan development and presentament and presentation tion (3) (3) EIS process EIS process
development, selection and development of a preferred alternative, developer selection, and the SEQR process. Stakeholder and public outreach will underpin this process at all stages.
(1) Developer request for expressions of interest, developer request for proposals
ARUP 96
(2) NYS draft environmental impact assessment (3) NYS environment impact assessment 97
MONTHLY DIURNAL AVERAGES - NEW ROCHELLE, NY, USA °C
W/ m²
mm
40
1.0k
100
30
0.8k
90
20
0.6k
60
Stereographic Diagram
Location: New Rochelle, NY, USA Sun Position: -179.7°, 33.1° HSA: -179.7°, VSA: 146.9° © W e a th e r T o o l
10
0.4k
N
345°
30° 10°
40
315° 0
0.2k
-10
0.0k
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
15°
330°
1st Jul 60°
30°
300° 1st Jun
0
45°
20°
20
40°
1st May
50°
285°
60°
1st Aug 75° 1st Sep
70°
Legend
1st Apr
Annual Precipitation Air Temperature Direct Solar Radiation Diffuse Solar Radiation
Comfort Zone Cold period heating required Hot period cooling required
80°
270°
90° 1st Oct
1st Mar
Psychrometric Chart
AH
Location: New Rochelle, NY, USA Data Points: 1st January to 31st December Barometric Pressure: 101.36 kPa
255°
105° 1st Nov
1st Feb
© W e a th e r T o o l
25
SELECT ED DESI GN T ECHNI QUES:
1. passive solar heating 2. exposed mass + night-purge ventilation 3. natural ventilation 4. indirect evaporative cooling
1st Dec
1st Jan 240°
16
15
20
14
13
12
10
11
9
225° 15
10
Time: 12:00 Date: 21st September Dotted lines: July-December.
8
120°
135° 210°
150° 195°
180°
165°
5
DBT(°C)
98
5
10
15
20
25
30
35
40
45
new rochelle climate analysis
solar access & grid orientation
New Rochelle has a seasonal climate with hot muggy summers and cool winters. Average
The Sun Path plan diagram above shows the annual and daily sun path for Davids Island.
daily temperatures range from 32°F to 73°F with peaks of 87°F in July and lows of 28°F in
The blue lines show the daily path of the sun while the blue figure eight lines indicate the
January. There is a need for heating during the cool and cold periods. Heavily insulated
sun’s location at a given hour throughout the year. The degrees around the outer circle
walls, roofs, and glazing are necessary in winter to prevent heat loss. Consistent direct solar
provide the azimuth of the sun while the concentric circles provide the altitude of the sun,
radiation can provide passive heating in winter but requires shading of building facades and
also known as sun angle. Site boundaries, solar access, and shading requirements impact the
public space to mitigate excessive heat gain. Natural ventilation and night cooling through
street grid and building massing. Maximize the potential for southern building exposure to
operable windows and louvers helps minimize the cooling load.
encourage passive heating and daylight and allow for natural ventilation. 99
Ottawa
0M 50
Nova Scotia
ile
New York
s
Ohio
Pennsylvania New Jersey
importing material
local materials
use materials with a high recycled content, & are rapidly renewable
Hydroponic farm
Greenhouse Farm
farmers market
traditional food distribution
recycle
local food distribution composting
waste reduction
local food system
A closed loop waste management system is extremely important to an island development
The distance food travels, know as “food miles,” contributes to a person’s or town’s carbon
where importing and exporting goods, materials, and waste can be time consuming and
footprint. Diverse local food production offers open space, fresh foods, and a closed
costly, and the viability of island sourced building materials should be taken into account.
loop agricultural system. Locally grown produce reduces the high energy use typical of
Off site sources should be regional to avoid long shipping distances. Waste on site can be
transporting food from agricultural regions to cities. Urban farms can act as a green space
reduced by minimizing packing and supplies brought onto Davids Island and establishing a
and garden amenity for residents and lower the cost of produce.
waste sorting system. Organic waste could be composted on the island and used as topsoil while the non-organic waste can be reused, recycled, or exported to a landfill. 100
101
Smart Location and Linkage Encourages communities to consider location, transportation alternatives, and preservation of sensitive lands while also discouraging sprawl.
green roofs
courtyards
Neighborhood Pattern and Design Emphasizes vibrant, equitable communities that are healthy, walkable, and mixed-use.
Green Infrastructure and Buildings Promotes the design and construction of buildings and infrastructure that reduce energy and water use, while promoting more sustainable use of materials, reuse of existing and historic structures, and other sustainable best practices.
public parks
curb cuts
Innovation & Design Process Process recognizes exemplary and innovative performance reaching beyond the existing credits in the rating system, as well as the value of including an accredited professional on the design team.
Regional Priority Credits Encourages projects to focus on earning credits of significance to the project’s local environment.
reflective, shaded sidewalks
permeable paving
open spaces & rainwater management
benchmarking performance
Encourage open space to provide amenity, mitigate storm water runoff, reduce the urban
Benchmarking systems for green design help demonstrate a project’s commitment to
heat island effect, remove pollutants from the air, and allow for increased opportunities for
environmental stewardship and social responsibility and garner attention within a broader
views and ventilation. Examples include public parks that can act as storehouses of carbon
marketplace. Davids Island could pursue a green building certification as a neighborhood
dioxide, courtyards which increase biodiversity within the city, curb cuts and porous paving
or for individual buildings. One system, LEED for Neighborhood Development, evaluates the
that filter and slow storm water runoff, and green roofs which can absorb storm water and also improve roof insulation.
location of buildings, the way they relate to each other, and qualities of the public realm that knit them together while LEED for Core and Shell Construction covers base building elements, such as the structure, envelope and building-level systems.
102
103
fort slocum, 1961
proposal, scheme 1
fort slocum, 1878-1967
feasibility study, 1967
Between 1878 and 1967, Fort Slocum, a post of the U.S. Army, served as a military recruiting
In 1967, Getter-Green Associates conducted a feasibility study for the development of Davids
station and coastal battery. In 1967, the City of New Rochelle purchased the island from the
Island. The study concluded that for the city of New Rochelle to improve its tax base, high-
Federal Government for $485,000 so that it could redevelop it.
rise luxury residential, corporate headquarters, or Research and Development site (with an investor willing to fund the capital costs) should be constructed. The report also concluded that access to Davids Island is crucial, and proposed a causeway to connect Davids Island to the mainland.
104
105
indian point
proposal, scheme 2
city alive plan, 1967
con ed property, 1968-1976
Two different development schemes came out of the 1967 Feasibility Study - scheme one
In 1968, Consolidated Edison purchased the Island for $3 million as a site for a nuclear
primarily residential and scheme two primarily commercial. The first scheme proposed 3,500
power plant but withdrew the plan due to public objection and sold the island back to New
luxury residential units in towers and a 70,000 sf convention center, a 200-key hotel, and a
Rochelle for $1 in 1976. In 1977, following ten years of neglect, the city designated the island
70-key boatel. 20 acres are reserved for public parkland, 6 of which are reserved for educational
as an urban renewal area.
facilities. The second scheme proposed an R&D campus on 30 acres of the site, a combination of high-rise and townhouses on 20 acres of the site, and a convention center/hotel complex similar to the proposal in scheme one. Planning was also done for causeway development options. 106
107
hotel columbia plan
harbor condominium plan
hotel columbia plan, 1977
harbor condominium plan, undated
In March 1977, a design called Hotel Columbia, the Gem of the Ocean, was proposed for Davids Island.
Michael Harris Spector & Partners, an architecture firm from New York, proposed a Harbor
The plan included a hotel complex, convention center, recreational facilities, a shopping, casino,
Condominium for Fort Slocum. The only existing documentation of the proposal is a
and theatre. The four hotel towers, 300 hotel rooms each, are located toward the center of the site.
drawing that shows a two to four story podium of condominiums facing the harbor, with
The casino, theatre, and movie complex are planned on the southern portion of the island, and the
a pool and outdoor lounge area located on the roof of the podium. Two 17-story buildings
service center sited over the incinerator s. A park, children’s play area, and recreation center are
of condominiums, which appear to be connected by breezeways, sit on the podium. A small
located in the northern portion of the island. Based on the plan’s existing documentation, island
marina and vehicular parking are also shown in the drawing.
access would be water-borne, with one helipad to accommodate some air travel. 108
109
xanadu proposal
trump proposal
xanadu, 1981-1992
trump, 1994-1996
In 1981, Xanadu Property Associates proposed to develop the island as an exclusive residential
In 1994, Donald Trump pursued the opportunity to develop a luxury residential community
community, which included construction of a 3,465ft. bridge, breakwater for an 800-slip marina,
on the island. His plan called for three 22-story buildings and one 45-story tower, a 1,000-
and 2,000 condominium units. Due to the grand scale and elitist tone of the plans, the proposed
slip marina, a small retail complex, parking for 3,500, and a ferry service that would
development met community resistance and was later withdrawn by Xanadu in 1990. Xanadu then
provide transportation to the island. However, Trump also met community opposition and
proposed a new development plan to address issues of the original proposal. However, continued
withdrew his plan in 1996.
opposition to the development by environmentalist and other community groups led New Rochelle to opt out of extending Xanadu the status of designated developer in 1992. 110
111
natural parkland
rye playland, new york
westchester county, 1990-2010
davids island development co., 1994-1996
During the early 1990s, Westchester County proposed to convert the island into a waterfront park with
Between 1994 and 1996, Davids Island Development Company, composed of a consortium
biking, hiking, and recreational fields, while making the island accessible by ferry only. This proposal was
of smaller developers, formed to create a family entertainment park with a water park,
the only one that would not disturb the fragile ecosystem of the Long Island Sound, though the plan was
amphitheater, health club and earth science center with a magnetic monorail to connect to
not developed. In 2002, it was determined that Westchester County would purchase, restore, and protect
the island.
the island. Again, this plan did not move forward and the island is still owned by New Rochelle. However, in 2010, it was announced that plans to devise a conceptual plan and a Task Force were convened to shape and achieve a vision for the island as a destination for residents and the surrounding region. 112
113
history
Army Corps of Engineers
davids island - ft. slocum, 1894
114
davids island - ft. slocum, 1917
davids island - ft. slocum plan
davids island - de cemp general hospital plan
115
feasibility study, 1967
116
117
xanadu proposal, 1981-1992
trump proposal, 1994-1996
xanadu proposal - model
trump proposal - perspective
xanadu proposal - model
xanadu proposal - model 118
trump proposal - plan 119
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123
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davids island Kohn Pedersen Fox Associates PC Kohn Pedersen Fox Associates (KPF) is one of the world’s pre-eminent architecture firms, providing architecture,
Images Referenced Page 57 Chatham. http://boulderganic.com/summer2011/hydro/ Marlborough. http://www.theinnovationdiaries.com/1037/hydroponicstrawberries/ Hartford. http://www.freshlinkfarms.com/ Page 36 Icon Images: “The New Rochelle Sustainability Plan 2010 - 2030” from New Rochelle. Page 102 Curb Cuts. http://denomydesigns.com/conservation.html
Importing Material. http://blogs.edf.org/transportation/2010/05/07/ coastal-shipping-a-potential-solution-to-the-challenges-of-a-growingfreight-sector/ Recycled Content Material. http://www.greenspacencr.org/building/pros/ how_b/elements_b/materials.html
members come from 43 different countries, speak more than 30 languages, and include over 70 LEED accredited professionals. KPF’s diverse portfolio, which features over 70 projects certified or pursuing green building certification, comprises corporate, hospitality, residential, academic, civic, transportation, and mixed-use projects located in more than 35 countries.
http://slowbuddha.org/composting-what-why-and-how/ Page 101 Hydroponic Farm. http://www.yanceyvillage.com/farm_to_fork/ hannahs_hydroponics.html
New Rochelle: Mayor Noam Bramson; Council Member Albert Tarantino; Charles B. Strome, III, City Manager; Michael W. Freimuth, Commissioner of Development; Eleanor Sharpe, Director of Planning; Suzanne Reider, Senior Project Manager
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Traffic. http://www.senukexrumer.com/tag/traffic/
Page 103
Electric Car. http://news.cnet.com/8301-11128_3-9996353-54.html
Icons: USGBC
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Operating as one firm with six global offices, KPF is led by 20 Principals and 14 Directors. The firm’s 500+ staff
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Page 38
orthotics/
interior, programming and master planning services for clients in both the public and private sectors.
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Davids Island Task Force: Doug Hocking, Thomas Lang, Kathy Jensen-Graham, Terence Gargan, Bonnie O’Brien, Rob Balachandran, Cesare Manfredi, Steve Levy, Christine Sculti, William Janeway, Richard Organisciak, Sara Richmond, Ellie Fredston, David Blumenfeld, Gary Trachten, Gregory Merchant, Mayor Noam Bramson, Council Member Albert Tarantino, Michael Yellin
NYS Department of Environmental Conservation
Kohn Pedersen Fox Project Team: Design Principal: Doug Hocking Project Team: Jennifer Pehr, Stephen Lenz, Jessica Talley Sustainability Consultants: Tiffany Broyles, Gera Feigon
Base map. Google Earth Page 40
Associated Firms: ARUP, SBI
Pedestrian Priortity. http://makevictoriabetter.blogspot.com/p/reads. html Mixed-Use Districts. Rue Sainte-Catherine by Christian Bauer.
Copyright: Kohn Pedersen Fox Associates PC Published by Kohn Pedersen Fox Associates PC, 11 West 42nd Street, New York, NY 10036
Vegetation. http://www.streetsblog.org/2009/02/17/david-brooks-stillrooting-for-auto-dependence-and-sprawl/ Page 100 124
Printed in USA 2011 125
Davids Island New Rochelle, NY
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