South Station Expansion Project Draft Environmental Assessment and Draft Section 4(F) Determination Appendix B – Indirect and Cumulative Impacts
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Draft Environmental Assessment and Draft Section 4(f) Determination Appendix B – Indirect and Cumulative Impacts South Station Expansion March 2017 Draft Environmental Assessment and Draft Section 4(f) Determination This Page Intentionally Left Blank South Station Expansion March 2017 South Station Expansion Project Draft Environmental Assessment and Draft Section 4(f) Determination Appendix B – Indirect and Cumulative Impacts March 2017 Draft Environmental Assessment and Draft Section 4(f) Determination Appendix B – Indirect and Cumulative Impacts This Page Intentionally Left Blank March 2017 South Station Expansion Draft Environmental Assessment and Draft Section 4(f) Determination Appendix B – Indirect and Cumulative Impacts Table of Contents 1. Introduction .................................................................................................................................. 1 2. Methodology ................................................................................................................................. 1 3. Indirect Impacts ............................................................................................................................ 1 3.1. South Station ................................................................................................................................. 2 3.2. Layover Facilities ......................................................................................................................... 2 3.3. United States Postal Service Relocation ....................................................................................... 4 4. Cumulative Impacts .................................................................................................................... 19 4.1. Proposed Projects ....................................................................................................................... 19 4.2. No Build Alternative .................................................................................................................. 24 4.3. Build Alternative ........................................................................................................................ 27 South Station Expansion March 2017 Page i Draft Environmental Assessment and Draft Section 4(f) Determination Appendix B – Indirect and Cumulative Impacts List of Figures Figure 1 — Potential USPS GMF Relocation Area ...................................................................................... 3 Figure 2 — USPS Employee Traffic Redistribution..................................................................................... 6 Figure 3 — USPS Truck Traffic Redistribution ........................................................................................... 7 Figure 4 — Primary USPS Routes (Existing Site) ....................................................................................... 8 Figure 5 — Primary USPS Routes (Relocated Site) ..................................................................................... 9 List of Tables Table 1 — USPS Trip Generation (Vehicle Trips) ....................................................................................... 4 Table 2 — Historic Resources in the Vicinity of the USPS GMF South Boston Project Site .................... 13 Table 3 — Development Projects in the South Station Vicinity ................................................................ 23 Table 4 — South Station Weekday Daily Combined Boardings and Alightings – No Build Alternative .. 26 Table 5 — South Station Weekday Daily Combined Boardings and Alightings – Build Alternative ........ 29 March 2017 South Station Expansion Page ii Draft Environmental Assessment and Draft Section 4(f) Determination Appendix B – Indirect and Cumulative Impacts 1. Introduction The Council on Environmental Quality (CEQ) regulations at 40 CFR 1500 et seq require an assessment of indirect and cumulative impacts for federally assisted projects. This section provides an assessment of the indirect and cumulative impacts of the South Station Expansion project (SSX) and other ongoing and planned projects in the project study area and the surrounding region. This analysis also includes a qualitative assessment of indirect impacts associated with the relocation of the United States Postal Service (USPS) General Mail Facility (GMF). 2. Methodology The project has the potential to produce indirect impacts and, when combined with past, present, and other reasonably foreseeable future projects, could result in cumulative impacts to certain resources. A qualitative assessment of indirect impacts was based on land use analyses, and information provided by planning departments regarding future development. The following steps were taken to complete the assessment of indirect and cumulative impacts: • Reviewed land use and development planning documents related to the project sites; • Identified approved, ongoing, and proposed developments in the vicinity of the project sites; • Assessed the impact of the project on ongoing and proposed development; and • Identified potential mitigation strategies to offset adverse impacts. 3. Indirect Impacts Indirect impacts are defined as those impacts caused by an action that occur later in time or farther removed in distance, but are still reasonably foreseeable. Indirect impacts may include growth-inducing effects and other impacts related to changes in the pattern of land use, population density or growth rate, and related effects on traffic, noise, air quality, water quality, and other natural systems. The following sections review the indirect impacts associated with the SSX project, including reopening Dorchester Avenue to public access, and the layover facility development. However, the primary indirect impact of the SSX project would be the relocation of the USPS facility. As noted in EA Chapter 1, the project would involve acquisition and demolition of the USPS GMF located on Dorchester Avenue adjacent to South Station, which would provide an approximately 14-acre site on which to expand South Station. Although demolition of the USPS facility after it is vacated is part of the project, the relocation of USPS operations is not part of the project. The USPS would determine the future location(s) to which its operations would be relocated, and the relocation would be subject to its own environmental review as required by state and federal regulations as a separate project. For the purposes of this indirect assessment, it is assumed that the USPS GMF could be relocated to a site in South Boston on the Reserved Channel in Boston’s Seaport District (Figure 1) that the USPS had previously identified as potentially being appropriate to accommodate a relocated USPS GMF The actual relocation of the USPS GMF would be subject to negotiations between the USPS and MassDOT/the Commonwealth of Massachusetts. South Station Expansion March 2017 Page 1 Draft Environmental Assessment and Draft Section 4(f) Determination Appendix B – Indirect and Cumulative Impacts 3.1. South Station 3.1.1. Terminal Expansion South Station is the central transit hub (Amtrak, commuter rail, subway, buses) for commuters to the Financial District and the South Boston Waterfront/Innovation District in Downtown Boston. The South Boston Waterfront/Innovation District is the fastest growing area in Boston, and the South Station improvements would provide increased transit capacity to accommodate growing transportation demands from significant commercial and residential development. The Innovation District has added 200 businesses and 5,000 jobs since it was conceived in 2010.1 Further discussion of the South Boston Waterfront/Innovation District growth and development is presented in EA Section 3.13. The urbanized land use and growth patterns are firmly established in the surrounding neighborhoods in the Financial District, Chinatown, the Leather District, and South Boston, and the SSX project is not anticipated to change land use patterns or growth patterns, other than being essential to support the considerable commercial and residential growth occurring in these areas. Positive indirect impacts on social and economic conditions would relate to enhanced accessibility for residents, workers, and tourists within and beyond the Downtown Boston area. By accommodating improved rail service frequency and reliability, the SSX project would support continued economic development and job and population growth. 3.1.2. Opening Dorchester Avenue to Public Access The portion of Dorchester Avenue between the USPS GMF and the Fort Point Channel is currently closed to the general public. The SSX project would reconstruct the roadway and allow public access for motorists and connect the Harborwalk through the site. The reopening of Dorchester Avenue will provide another key link between South Boston and the Financial District and will relieve traffic congestion along Atlantic Avenue, but is not expected to result in substantial negative indirect impacts, as the area is already urbanized and heavily travelled. 3.2. Layover Facilities The Widett Circle site area is dominated by industrial uses and rail operations and support facilities, including Amtrak’s Front Yard and Southampton Street Yard, the MBTA’s South Side Service and Inspection Facility and Cabot Yard, which is the primary MBTA Red Line maintenance facility. The indirect impacts associated with the development of the Widett Circle site as a layover facility involve the potential relocation of the businesses