EXPANSION PROJECT PUBLIC INFORMATION CENTRE October 17, 2019 - PowerPoint PPT Presentation

HIGHWAY 401 EXPANSION PROJECT PUBLIC INFORMATION CENTRE October 17, 2019

Purpose of this Public Information Centre (PIC) • Provide information on the Highway 401 Expansion Project • Describe the Environmental Assessment process • Summarize how traffic and environmental impacts are being mitigated • Identify Next Steps • Outline how you can stay informed and involved PIC Content available on the Project website includes: 1. Video presentation 2. PDF / Downloadable copy of the presentation slides 3. PDF Map of the entire Highway 401 Expansion corridor 4. Summary of the Question and Answer Sessions 5. PIC Comment form 2

Project Limits 3

Benefits of the Project The Highway 401 Expansion Project will have both local and regional benefits: • Reduced traffic congestion Improved Travel • Reduced travel times Provides Carpooling • New and expanded Commuter Carpool Lots • High Occupancy Vehicle (HOV) Lanes Options • More efficient movement of people and goods, within the Highway 401 corridor Economic Benefits • Generation of employment opportunities 4

Project Background and Environmental Assessment This Project is following the approved planning process for a Group ‘B’ project under the MTO Class Environmental Assessment (EA) for Provincial Transportation Facilities (2000) Detail Design and Construction Preliminary Design (2013) of three bridges (2015 – 2018) WCC selected to design and build the Highway 401 Expansion (Spring 2019) 5

EA and Design Build Process DCR No. 1 PRELIMINARY DESIGN (2013) DETAIL DESIGN (Commenced Spring 2019) CONSTRUCTION Review Secondary Source Information Conduct Field Investigations Stakeholder Consultation Throughout Commence Detail Design Notice of Study Commencement and Design and Construction Report No. 1 Design and Construction Report No. 1 Environmental Construction can commence (30-day Stakeholder Review) Construction and Environmental Clearance on DCR No. 1 Works Monitoring Throughout We are here Hold Public Information Centre Clearing and Grubbing • Design and Construction Report No. 2 Environmental Construction can commence (30-day Stakeholder Review) Structure Replacements: • Clearance on DCR No. 2 Works CN Rail Bridge • Trafalgar Road Bridge • Design and Construction Report No. 3 Environmental Construction can commence (30-day Stakeholder Review) Clearance CP Rail Bridge • on DCR No. 3 Works Environmental Clearance issued • and construction of DCR No. 1 Construction Completion works has commenced 6

Highway 401 Widening Typical 10 Lane Cross Section Westbound Lanes Eastbound Lanes Median widths will vary throughout the corridor Typical 12 Lane Cross Section Westbound Lanes Eastbound Lanes Median widths will vary throughout the corridor 7

Interchanges and Road Realignment • Interchange reconfiguration: • Regional Road 25 • James Snow Parkway • Trafalgar Road • Winston Churchill Boulevard • Mississauga Road • Highway 401 and Highway 407 ETR Mississauga Road, southwest quadrant • Local road realignments: • Sixth Line north and south of Highway 401 • Trafalgar Road north and south of Highway 401 • Creditview Road north and south of Highway 401 8

Structures Structure Description of work New and Replacement Bridges • Highway 401 and Highway Existing Highway 407 ETR westbound to Highway 401 407 ETR Interchange Ramp westbound ramp relocated • Sixth Line Bridge Bridge Replacement • Number of lanes on Sixth Line will remain the same • Existing structure will be maintained during Hwy 401 / Hwy 407ETR Interchange construction • Creditview Road Bridge Bridge Replacement • Final bridge will provide two lanes in each direction Watercourse Bridge Replacements • Oakville Creek East Bridges Bridge Replacement and Widening • Will accommodate wildlife passage under the structure • Credit River Bridges Bridge Replacement and Widening • Will accommodate wildlife passage under the Credit River Bridge structure 9

Structures Structure Details Bridge Rehabilitations and Widening • Bridge Rehabilitation Ninth Line Bridge • Lane closures during construction, as necessary • Bridge Rehabilitation Winston Churchill Boulevard Bridges • Lane closures during construction, as necessary • Bridge Rehabilitation & Widening of Highway 401 bridge over Derry Derry Road Bridges Road to six lanes in each direction • Lane closures during construction, as necessary Other Structures: • Culverts • Retaining Walls and Toe Walls Winston Churchill Blvd, looking south Derry Road, looking south 10

Bridge Aesthetics • Architectural detail on the parapet wall and embossments on the wingwalls will be included on the following bridges: • Trafalgar Road Bridge Architectural detail for parapets • Sixth Line Bridge • Creditview Road Bridge Embossment Concepts 11

Drainage and Stormwater Management • Stormwater quantity and quality control • Sewers, culverts, roadside and flat-bottom grassed ditches, and existing and new stormwater management ponds. • Proposed Stormwater Management Ponds: • Two (2) new wet ponds south of Highway 401 (one west of Fifth Line and one west of Sixth Line). • Modifications to two (2) existing wet ponds near the Highway 407 ETR and Highway 401 Interchange Pond 2 – West of Fifth Line Pond 1 – West of 6th Line 407ETR Pond 1 and Pond 5 12

Supplementary Works • Commuter Carpool Lots: • New Trafalgar Road Commuter Carpool Lot (Northwest Quadrant) • New Winston Churchill Boulevard Commuter Carpool Lot (Northwest Quadrant) • Expansion of existing Mississauga Road Commuter Carpool Lot (Northwest Quadrant) Mississauga Road Commuter Carpool Lot • Active Transportation: Accommodate future bike lanes on Regional Road 25 • Accommodate future bike lanes on Trafalgar Road Underpass Structure • Multi-use path along the west side of Creditview Road • • Illumination: Continuous high mast lighting corridor wide 13

Traffic Impacts • During peak traffic hours six lanes will be maintained on mainline Highway 401, as per existing conditions • During off peak traffic hours there will be short term closures and lane reductions • Lane closures anticipated: • Some off-ramps will be reduced to a single lane throughout construction • Ninth Line will be reduced from 2 Lanes to 1 Lane • Derry Road will be reduced from 6 Lanes to 4 Lanes • Winston Churchill Boulevard will be reduced from 6 Lanes to 4 Lanes • Creditview Road Bridge lane closures to be confirmed Information about traffic disruptions will be posted on the website and traffic updates will be sent to those subscribed by email to the Project contact list 14

Landscaping and Restoration • Landscaping and restoration will occur corridor wide, including around the stormwater ponds, within interchanges, and in valley corridors • Ecological Restoration will include habitat enhancement for species at risk and wildlife passage features Stormwater Management Pond Naturalization Typical Interchange Landscaping 15

Environmental Mitigation Factor Existing Conditions and / or Impacts Mitigation Measures Terrestrial • Minimize vegetation removals and install tree protection barriers • Isolated Natural areas • Invasive species management • Existing highway is a barrier to wildlife movement • Landscaping and restoration • Wildlife fence and wildlife passage features Aquatic • Fish bearing watercourses – Direct and Indirect • Permits and approvals • Watercourse realignments • In-water work timing windows • Risk of erosion and sedimentation • Install and maintain ESC measures until the site is stabilized Species at Risk • Four Species at Risk (SAR) • Permits and approvals • Consultation with regulatory agencies is ongoing • Adhere to timing windows Water / Erosion • Groundwater dewatering • Environmental Activity and Sector Registry (EASR) / Permit To Take Water (PTTW) and Sediment • Construction impacts to surface water • Properly installed and monitored ESC measures • Risk of erosion and sedimentation • Spills Prevention and Management Plan, Groundwater Monitoring Program, Surface Water Monitoring Program Land Use • Mix of urban, agricultural and some natural areas • Construction works will be limited to the Project Lands • Property has already been acquired by the • Permission to Enter will be obtained if required province; no additional property is needed 16