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QEW QEW Garden City Skyway Environmental Assessment - PDF document

Jan 30, 2023 •434 likes •526 views

10/3/2013 QEW QEW Garden City Skyway Environmental Assessment October 7, 2013 QEW

  1. 10/3/2013 QEW QEW Garden City Skyway Environmental Assessment ���������������� ���������������������������� ������� October 7, 2013 QEW Garden City Skyway Environmental Assessment QEW Agenda • Study Overview • EA Objective • Study Area • Key Tasks • Short List of Alternatives • Technically Preferred Alternative • Next Steps 2 1

  2. 10/3/2013 QEW QEW Garden City Skyway Environmental Assessment Study Objectives • For the Garden City Skyway, determine a long-term strategy to address: • Structural needs • Road safety needs • Operational needs 3 QEW QEW Garden City Skyway Environmental Assessment Major Tasks 4 2

  3. 10/3/2013 QEW QEW Garden City Skyway Environmental Assessment Study Area TOWN OF NIAGARA-ON-THE-LAKE CITY OF ST. CATHARINES QEW Garden City Skyway Environmental Assessment QEW Project Background • Garden City Skyway is 2.2 km long, and carries 6 lanes of QEW traffic • Anticipated that deck replacement will be required by approximately 2025 • Completed in 1963, the bridge has high heritage value 6 3

  4. 10/3/2013 QEW QEW Garden City Skyway Environmental Assessment Short List of Alternatives • Widening (and rehabilitate existing bridge) • Twinning (and rehabilitate existing bridge) • Replacement Bridge (Demolish existing bridge) • Replacement Tunnel (Demolish existing bridge) 7 QEW Garden City Skyway Environmental Assessment QEW Summary of PIC 1 • PIC 1 held on March 30, 2011 • Presented Short List of Alternatives • 45 people attended • 18 comments received regarding: • Property impacts • Traffic impacts during construction • Heritage and aesthetics • Preference for bridge or tunnel • Driver safety 8 4

  5. 10/3/2013 QEW QEW Garden City Skyway Environmental Assessment Evaluation Criteria • Natural Environment • Socio-economic Environment • Cultural Environment • Technical Considerations (Transportation, Constructability, Cost, etc.) Independent Value Engineering and Cost Risk Assessment Workshops were also completed as part of the evaluation process. 9 QEW QEW Garden City Skyway Environmental Assessment Technically Preferred Alternative: North Twinning 10 5

  6. 10/3/2013 QEW QEW Garden City Skyway Environmental Assessment Recommended Cross Section 11 QEW Garden City Skyway Environmental Assessment QEW Rationale for the Preferred Alternative • Twinning is preferred because: • Maximizes use of existing bridge • Minimal traffic impacts during construction & future rehabilitations • Low cost compared to Replacement Bridge/Tunnel alternatives • Technical feasibility • North Twinning (vs. South Twinning) is preferred because: • Fewer constructability risks relating to Homer Bridge • Improves flexibility for future Homer Bridge replacement • Property impacts due to south twinning difficult to mitigate • Fewer construction staging impacts to municipal roads 12 6

  7. 10/3/2013 QEW QEW Garden City Skyway Environmental Assessment North Twinning: Key Impacts Coon Road Potentially Closed Queenston Road Truncated Travel Information Centre Displaced Property Impacts 13 QEW QEW Garden City Skyway Environmental Assessment Next Steps • Hold Property Owner Session prior to PIC 2 (October 22, 2013) • Present findings at PIC 2 (October 22, 2013) • Complete Preliminary Design (Early 2014) • Hold PIC 3 (Spring 2014) • File Transportation Environmental Study Report (Late 2014) 14 7

  8. 10/3/2013 QEW QEW Garden City Skyway Environmental Assessment Thank You! www.qewgcs.ca 15 8

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