York Region Dufferin Street Class Environmental Assessment Study
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York Region - Dufferin Street Class Environmental Assessment Study Environmental Study Report - May 2019 York Region Dufferin Street Class Environmental Assessment Study Environmental Study Report May 2019 0 FINAL M. Alexander M. Vervoorn J. Hemingway D. Foong Date Rev. Status Prepared By Checked By Approved By Approved By Client H353430, Rev. 0 Page i © Hatch 2019 All rights reserved, including all rights relating to the use of this document or its contents. York Region - Dufferin Street Class Environmental Assessment Study Environmental Study Report - May 2019 Executive Summary Study Background In 2016, the Regional Municipality of York (York Region) initiated a Class Environmental Assessment (Class EA) Study to identify improvements to Dufferin Street from Langstaff Road to Teston Road in the City of Vaughan. York Region’s Transportation Master Plan (TMP) identified the need to improve the arterial road network in order to accommodate population and employment growth areas of York Region. The TMP identifies the need to improve Dufferin Street from Langstaff Road to Marc Santi Boulevard and from Sir Benson Drive to Teston Road by 2031. The purpose of this study is to identify a preferred design to address the identified capacity deficiencies along this 6 km section of Dufferin Street. The Study Area is located within the City of Vaughan, and is within the jurisdiction of the Toronto and Region Conservation Authority (TRCA). Public Consultation This Study was undertaken as a Schedule ‘C’ Municipal Class EA. In accordance with the requirements of the Municipal Class EA process, the project included four formal points of contact with stakeholders, interested members of the public, review agencies and Indigenous Communities, including a Notice of Study Commencement, two Public Consultation Centres (PCC) and a Notice of Study Completion. In addition, as part of each PCC, an online presentation was made available for those unable to attend the PCC to review the information and to provide their comments. This opportunity provided a greater level of involvement and a larger number of comments was received. Generally those who either attended the PCC in person, reviewed the material online or provided their own comments throughout the Study were in support of the needed improvements. An additional point of contact was made with Indigenous Communities to determine if they required any further information related to the Study. A letter and follow-up phone call was made to the Chief and Consultation Coordinator at each community. Generally Indigenous Communities were most interested in archaeological and natural heritage studies, and requested copies of these reports for their review, as well as to be involved in future field work related to these two technical areas. Need and Justification Pertinent federal, provincial, regional, municipal and local planning policies were reviewed as they relate to the proposed roadway improvements, as well as those that apply within the identified Study Area. H353430, Rev. 0 Page ii © Hatch 2019 All rights reserved, including all rights relating to the use of this document or its contents. York Region - Dufferin Street Class Environmental Assessment Study Environmental Study Report - May 2019 York Region has been experiencing significant growth and anticipates that this growth will continue in the coming years. The Region and its municipalities are expected to reach 1.5 million people with an employment level of 780,000 jobs by 2031. Existing Conditions The existing natural, socio-economic, cultural, transportation and engineering conditions of the Dufferin Street Study Area have been considered in this study. Natural Environment A Natural Environment Report including an Arborist Report were completed by Matrix Solutions Inc. to characterize the natural heritage features and trees within the Study Area. There are two Areas of Natural and Scientific Interest (ANSIs) including the Maple Spur Channel regionally significant Earth Science ANSI and the Maple Uplands and Kettles candidate provincially significant Life Science ANSI. The ANSIs are located within the Natural Core Area designation of the Oak Ridges Moraine (ORM) Conservation Plan. There is an Environmentally Sensitive Area (ESA) immediately west of Dufferin Street, south of Teston Road. A portion of the Study Area is located within the Regional Greenlands System. There are a total of 372 trees and shrubs documented along Dufferin Street with 136 with a diameter at breast height greater than 10cm. Wildlife habitat is partially located in the southern two segments of the Study Area, however the species are more tolerant to anthropogenic disturbances given the urbanized area. While the northern segment of the Study Area, associated with the ORM and large natural forested corridor is more likely to support wildlife and wildlife habitat. The Study Area is located within the Upper West Don and Upper East Don subwatersheds within the Don River watershed. The watercourses south of Major Mackenzie Drive area generally coolwater and warm water streams, while north of Major Mackenzie Drive are generally cold and coolwater crossings. Of the ten watercourses within the Study Area, all provide fish habitat potential ranging from low to moderate, with one watercourse providing high fish habitat potential. According to the MNRF, there are 11 Species at Risk that have the potential to be found within the Study Area. Socio-Economic According to the City of Vaughan Official Plan (2012), the majority of the west side of Dufferin Street (south of Rutherford Road) is Employment Area, with the remaining consisting of Community Areas, Natural Areas and Countryside. Dufferin Street crosses a number of Core Features, mostly associated with the ORM. H353430, Rev. 0 Page iii © Hatch 2019 All rights reserved, including all rights relating to the use of this document or its contents. York Region - Dufferin Street Class Environmental Assessment Study Environmental Study Report - May 2019 Air Quality An Air Quality Assessment was completed by Novus to assess the local air quality impacts, including an assessment of total greenhouse gas emissions and construction impacts. Two scenarios were reviewed including 2017 Existing and 2041 Future Built to determine the impact. A number of contaminants of interests were assessed. Four Ministry of the Environment, Conservation and Parks (MECP) and five NAPS stations were used as part of the analysis as a result of the proximity to the Study Area to provide background contaminant concentrations. Noise Assessment An Environmental Noise Impact Assessment was completed by Novus. The Ministry of Transportation (MTO) and MECP policies and guidelines were used, as well as York Region’s policies. York Region’s policies outline where noise mitigation is to be built on Regional Roads and outline criteria to determine when mitigation is required. Fourteen Noise Sensitive Area receptors were used in the analysis and were modelled to assess change between Build and No Build. Archaeology A Stage 1 Archaeological Assessment (AA) was completed by Archaeoworks Inc. and identified areas requiring Stage 2 AA. There is an elevated archaeological potential within the Study Area as a result of several designated and listed heritage resources within 300m, including the Baker-Cober Church and Cemetery, five registered archaeological sites within 50m of the Study Area; and several tributaries of the East Branch of the Don River. Portions of the Study Area will be subjected to test pit survey at five metre intervals as part of a Stage 2 AA. Cultural Heritage A Cultural Heritage Assessment Report (CHAR) was completed by Archaeoworks Inc. to document the existing cultural heritage resources within the Study Area. There were five cultural heritage resources identified within the study area, including the following cultural heritage landscapes: a waterscape and the Baker-Cober Church and Cemetery, as well as the following Built Heritage Resources: two residential buildings and a twentieth century Department of Parks property owned by the City of Vaughan. Transportation A Traffic and Transportation Study was completed. Major roadways include Dufferin Street, Langstaff Road, Rutherford Road, Major Mackenzie Drive and Teston Road. The existing Dufferin Street is a four-lane roadway with turning lanes at intersections between Langstaff Road and Major Mackenzie Drive. North of Major Mackenzie Drive, the roadway tapers to a two-lane section up to Teston Road. The TMP identified that congestion is experienced between Langstaff Road and Rutherford Road, as well as between Major Mackenzie Drive and 15th Sideroad. H353430, Rev. 0 Page iv © Hatch 2019 All rights reserved, including all rights relating to the use of this document or its contents. York Region - Dufferin Street Class Environmental Assessment Study Environmental Study Report - May 2019 The Region’s TMP identifies that continuing to widen Regional Roads will not address the needs for York Region as demand continues to exceed capacity. In the existing condition, the midblock sections are currently operating at or above the available capacity in the peak direction in the morning (southbound) and the afternoon (northbound) peak hours. These are consistent with the Region’s guidelines for capacity improvements, including widening from four to six lanes from Langstaff Road to Rutherford Road; and from two to four lanes from Sir Benson Drive to Teston Road. Seven of the nine signalized intersections are operating