Southwest Area Land Use Plan Draft Generic Environmental Impact Statement, Southwest Area Land Use Plan, City of Ithaca, Tompkins County, NY lead agency Ithaca Common Council, December 1999 completed by Clark Patterson Associates | Valley | Floodplain

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This draft Generic Environmental Impact Statement (DGEIS) addresses the potential impacts of the adoption and implementation of the Southwest Area Land Use Plan. A related action to be considered at this time is acquisition or official mapping of proposed transportation rights-of-way. The Southwest Area Land Use Plan is intended to guide future use and development of approximately 381 acres of land bounded by Clinton Street to the north, Cayuga Inlet to the west, and Meadow Street and Elmira Road to the east and south. The Plan study area includes approximately 160 acres of potentially developable land and 25 acres designated as substitute parkland in conjunction with the alienation of the Southwest Park parcel. There are an additional 35 acres of designated substitute parkland adjacent to the study area.
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  - Draft Generic Environmental Impact Statement Southwest Area Land Use PlanCity of Ithaca, Tompkins County, NY Lead Agency :City of Ithaca Common Council108 East Green StreetIthaca, NY 14850 Contact :Alan J. Cohen, Mayor City of Ithaca(607)274-6550 Applicant :City of Ithaca Common Council108 East Green StreetIthaca, NY 14850 Contact: Mr. H. Matthys Van Cort, Director Department of Planning and DevelopmentCity of Ithaca(607)274-6550 Prepared By :Clark Patterson Associates186 North Water StreetRochester, New York 14604 Contact :Norman Gardner Roger Vanderbrook, P.E.(716) 454-7600Date Accepted:____________________ Date Comments Due:_______________  December 1999  iTABLE OF CONTENTSPAGEExecutive Summary..............................................................................................................ES-11Proposed Action...........................................................................................................1-11.1Background and History...................................................................................1-11.2Public Need of the Proposed Plan.....................................................................1-21.3Objectives of the Project Sponsor.....................................................................1-31.4Benefits............................................................................................................1-31.5Components of the Action.................................................................................1-31.6Location, Design and Layout............................................................................1-41.7Permits and Approvals......................................................................................1-42Environmental Setting, Impacts, and Mitigation...........................................................2-12.1Natural Features................................................................................................2-12.1.1Soils......................................................................................................2-22.1.2Surface Geology....................................................................................2-22.1.3Impacts.................................................................................................2-22.1.4Mitigation of Impacts............................................................................2-32.2Land Use and Zoning........................................................................................2-32.2.1Impacts.................................................................................................2-62.2.2Mitigation of Impacts............................................................................2-82.3Water Resources.............................................................................................2-102.3.1Wetlands.............................................................................................2-102.3.2Impacts...............................................................................................2-112.3.3Mitigation of Impacts..........................................................................2-112.3.4Surface Water.....................................................................................2-122.3.5Impacts...............................................................................................2-142.3.6Mitigation of Impacts..........................................................................2-142.3.7Recommended Drainage Configuration...............................................2-152.3.8Storm Water Quality............................................................................2-172.3.9Impacts...............................................................................................2-172.3.10Mitigation of Impacts..........................................................................2-172.3.11Hydrogeologic Setting.........................................................................2-182.3.12Impacts...............................................................................................2-192.3.13Mitigation of Impacts..........................................................................2-202.4Fill Areas........................................................................................................2-202.4.1Dump Site History...............................................................................2-202.4.2Field Investigations.............................................................................2-212.4.3Sampling Efforts.................................................................................2-212.4.4Sampling Results.................................................................................2-222.4.5Impacts...............................................................................................2-24  ii2.4.6Mitigation...........................................................................................2-252.5Air Resources.................................................................................................2-272.5.1Impacts...............................................................................................2-272.5.2Mitigation of Impacts..........................................................................2-272.6Visual Resources............................................................................................2-282.6.1Impacts...............................................................................................2-302.6.2Mitigation of Impacts..........................................................................2-322.7Transportation.................................................................................................2-332.7.1Intersection Capacity Analysis.............................................................2-332.7.2Impacts and Mitigation........................................................................2-342.7.3Neighborhood Street Analysis.............................................................2-402.7.4Impacts and Mitigation........................................................................2-422.7.5Transit, Bicycle, and Pedestrian Analysis............................................2-502.7.6Impacts and Mitigation........................................................................2-502.8Daily Life.......................................................................................................2-512.8.1Impacts...............................................................................................2-512.8.2Mitigation of Impacts..........................................................................2-532.9Utilities...........................................................................................................2-532.9.1Water Service......................................................................................2-532.9.2Impacts...............................................................................................2-542.9.3Mitigation of Impacts..........................................................................2-562.9.4Sewer Service......................................................................................2-562.9.5Impacts...............................................................................................2-572.9.6Mitigation of Impacts..........................................................................2-582.10Solid Waste....................................................................................................2-582.10.1Impacts...............................................................................................2-592.11Plants and Animals.........................................................................................2-592.11.1Field Survey........................................................................................2-592.11.2Literature Search.................................................................................2-612.11.3Impacts...............................................................................................2-622.12Cultural Resources..........................................................................................2-632.12.1Impacts...............................................................................................2-642.13Community Character.....................................................................................2-642.13.1Area Residential Neighborhoods.........................................................2-642.13.2Impacts and Mitigation........................................................................2-642.13.3Economic Character............................................................................2-652.13.4Impacts and Mitigation........................................................................2-693Unavoidable Adverse Impacts......................................................................................3-14Alternatives to Proposed Action...................................................................................4-15Irreversible and Irretrievable Commitment of Resources..............................................5-16Growth Inducing Aspects.............................................................................................6-1  iiiLIST OF TABLES TABLE 1-11-1 PROPERTY & OWNERSHIP LIST......................................................................1-1UNDEVELOPED LAND IN THE GEIS STUDY AREATABLE 1-2LAND USE AND SCALE ALTERNATIVES.............................................................1-4TABLE 1-3PERMITS AND APPROVAL REQUIREMENTS.......................................................1-5TABLE 2-1UNDEVELOPED PARCEL WITHIN THE STUDY AREA........................................2-3TABLE 2-2STUDY AREA ZONING............................................................................................2-5TABLE 2-3SUMMARY OF LOT REQUIREMENTS IN STUDY AREA.....................................2-6AND ADJACENT AREASTABLE 2-4LAND USE ALTERNATIVES...................................................................................2-7TABLE 2-5SUMMARY OF LAND USE IMPACTS BY LAND USE ALTERNATIVE................2-7TABLE 2-6WETLANDS DELINEATED WITHIN SOUTHWEST AREA LAND USE PLAN...2-11TABLE 2-7CAYUGA LAKE FLOOD ELEVATIONS................................................................2-13CITY SHORELINE AND IN THE VICINITY OF THE STUDY AREATABLE 2-8STORM WATER PEAK FLOW AND RUNOFF RATES.........................................2-14FOR A 25-YEAR STORMTABLE 2-9KEY VIEWS FOR VISUAL IMPACT ANALYSIS..................................................2-28TABLE 2-10VISUAL RESOURCES EVALUATION FOR KEY VIEWS.....................................2-29TABLE 2-11SUMMARY OF BASIC PROCEDURE WORKSHEETS..........................................2-31DEFINING POTENTIAL IMPACT SEVERITYTABLE 2-12SUMMARY OF INTERSECTION LEVEL OF SERVICE (LOS).............................2-34SOUTHWEST AREA TRAFFIC AREA INTERSECTIONS, 1998 AND 2018TABLE 2-13GENERATED TRAFFIC VOLUMES - ALTERNATIVE 5......................................2-35TABLE 2-14LAND USE MIX AND TRIP GENERATION CHARACTERISTICS.......................2-36ALL FEATURESTABLE 2-15TRIP DISTRIBUTION PATTERNS.........................................................................2-36TABLE 2-16REQUIRED ADDITIONAL CIRCULATION...........................................................2-37TABLE 2-17SUMMARY OF INTERSECTION LEVEL OF SERVICE........................................2-39ALTERNATIVE 5 DEVELOPMENTTABLE 2-18SUMMARY OF FUNCTIONAL CLASSIFICATION...............................................2-41AND EXISTING AND NO ACTION TRAFFIC VOLUMESSOUTHWEST AREA NEIGHBORHOOD IMPACT AREA STREET SEGMENTS1998 AND 2018TABLE 2-19EXISTING, PROJECTED AND MITIGATED TRAFFIC VOLUMES......................2-43ALTERNATIVE 5 DEVELOPMENTSOUTHWEST AREA NEIGHBORHOOD IMPACT AREA STREET SEGMENTS1998 AND 2018TABLE 2-20POTENTIAL RESIDENTIAL TRAFFIC CALMING MEASURES..........................2-47TABLE 2-21NOISE LEVELS FOR VARIOUS CONSTRUCTION EQUIPMENT........................2-52TABLE 2-22ESTIMATED DOMESTIC WATER USAGE............................................................2-55TABLE 2-23SOUTHWEST AREA UTILITIES IMPACT MITIGATION.....................................2-56TABLE 2-24ESTIMATED WASTEWATER FLOW RATES........................................................2-57TABLE 2-25LITERATURE SEARCH OF RARE SPECIES.........................................................2-62TABLE 2-26RETAIL SALES AND HOUSEHOLD CONSUMER EXPENDITURE.....................2-64POTENTIAL TO 30 MILES, 1999TABLE 2-27RETAIL SALES AND HOUSEHOLD CONSUMER SPENDING............................2-68ITHACA 14850 ZIP CODE AND WITHIN 30 MILES OF STUDY AREATABLE 2-28ESTIMATE OF CURRENT RETAIL SALES, ITHACA PRIMARY.........................2-69MARKET AREA
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