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

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

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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

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HIGHWAY 401 EXPANSION PROJECT

PUBLIC INFORMATION CENTRE

October 17, 2019

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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

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Project Limits

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Benefits of the Project

The Highway 401 Expansion Project will have both local and regional benefits: Improved Travel Provides Carpooling Options Economic Benefits

  • Reduced traffic congestion
  • Reduced travel times
  • New and expanded Commuter Carpool Lots
  • High Occupancy Vehicle (HOV) Lanes
  • More efficient movement of people and goods,

within the Highway 401 corridor

  • Generation of employment opportunities

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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)

Preliminary Design (2013) Detail Design and Construction

  • f three bridges (2015 – 2018)

WCC selected to design and build the Highway 401 Expansion (Spring 2019)

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EA and Design Build Process

PRELIMINARY DESIGN (2013) DETAIL DESIGN (Commenced Spring 2019) Review Secondary Source Information Conduct Field Investigations Commence Detail Design Notice of Study Commencement and Design and Construction Report No. 1 Design and Construction Report No. 1 (30-day Stakeholder Review) Environmental Clearance CONSTRUCTION Construction can commence

  • n DCR No. 1 Works

Hold Public Information Centre

We are here

Design and Construction Report No. 2 (30-day Stakeholder Review) Environmental Clearance Construction can commence

  • n DCR No. 2 Works

Design and Construction Report No. 3 (30-day Stakeholder Review) Environmental Clearance Construction can commence

  • n DCR No. 3 Works

Construction Completion

Stakeholder Consultation Throughout Construction and Environmental Monitoring Throughout

DCR No. 1

  • Clearing and Grubbing
  • Structure Replacements:
  • CN Rail Bridge
  • Trafalgar Road Bridge
  • CP Rail Bridge
  • Environmental Clearance issued

and construction of DCR No. 1 works has commenced

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Highway 401 Widening

Typical 10 Lane Cross Section

Westbound Lanes Eastbound Lanes

Median widths will vary throughout the corridor

Typical 12 Lane Cross Section

Median widths will vary throughout the corridor

Westbound Lanes Eastbound Lanes

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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
  • 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

Mississauga Road, southwest quadrant

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Structures

Structure Description of work New and Replacement Bridges Highway 401 and Highway 407 ETR Interchange Ramp

  • Existing Highway 407 ETR westbound to Highway 401

westbound ramp relocated Sixth Line Bridge

  • Bridge Replacement
  • Number of lanes on Sixth Line will remain the same
  • Existing structure will be maintained during

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

structure Credit River Bridge Hwy 401 / Hwy 407ETR Interchange

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Structures

Structure Details Bridge Rehabilitations and Widening

Ninth Line Bridge

  • Bridge Rehabilitation
  • Lane closures during construction, as necessary

Winston Churchill Boulevard Bridges

  • Bridge Rehabilitation
  • Lane closures during construction, as necessary

Derry Road Bridges

  • Bridge Rehabilitation & Widening of Highway 401 bridge over Derry

Road to six lanes in each direction

  • Lane closures during construction, as necessary

Other Structures:

  • Culverts
  • Retaining Walls and Toe Walls

Derry Road, looking south Winston Churchill Blvd, looking south

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Bridge Aesthetics

  • Architectural detail on the parapet wall and embossments on the wingwalls will be

included on the following bridges:

  • Trafalgar Road Bridge
  • Sixth Line Bridge
  • Creditview Road Bridge

Architectural detail for parapets Embossment Concepts

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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
  • f 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

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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

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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

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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

Typical Interchange Landscaping Stormwater Management Pond Naturalization

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Environmental Mitigation

Factor Existing Conditions and / or Impacts Mitigation Measures

Terrestrial

  • Isolated Natural areas
  • Existing highway is a barrier to wildlife movement
  • Minimize vegetation removals and install tree protection barriers
  • Invasive species management
  • Landscaping and restoration
  • Wildlife fence and wildlife passage features

Aquatic

  • Fish bearing watercourses – Direct and Indirect
  • Watercourse realignments
  • Risk of erosion and sedimentation
  • Permits and approvals
  • In-water work timing windows
  • Install and maintain ESC measures until the site is stabilized

Species at Risk

  • Four Species at Risk (SAR)
  • Consultation with regulatory agencies is ongoing
  • Permits and approvals
  • Adhere to timing windows

Water / Erosion and Sediment

  • Groundwater dewatering
  • Construction impacts to surface water
  • Risk of erosion and sedimentation
  • Environmental Activity and Sector Registry (EASR) / Permit To Take Water (PTTW)
  • Properly installed and monitored ESC measures
  • Spills Prevention and Management Plan, Groundwater Monitoring Program,

Surface Water Monitoring Program Land Use

  • Mix of urban, agricultural and some natural areas
  • Property has already been acquired by the

province; no additional property is needed

  • Construction works will be limited to the Project Lands
  • Permission to Enter will be obtained if required

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Environmental Mitigation

Factor Existing Conditions and / or Impacts Mitigation Measures

Noise and Vibration

  • No permanent noise mitigation
  • Construction noise mitigation
  • Potential for vibration impacts
  • Noise bylaw exemption for work within municipal right-of-way
  • Limit noisy construction activities to daytime, equipment in good operating

condition, noise complaints will be investigated

  • Vibration monitoring at select locations

Air Quality

  • No significant impacts to regional air quality
  • Limited construction air quality impacts
  • Keep construction machinery and equipment in good condition
  • Dust suppressant measures

Excess Earth, Waste and Contamination

  • Excess earth generation
  • Contaminated areas requiring remediation
  • Demolition of structures/buildings with

designated substances

  • Excess materials management
  • Remediation of soil
  • Designated substances management

Archaeology

  • The areas to be impacted have been cleared of

archaeological value

  • If undocumented archaeological resources are discovered, construction will

stop and findings investigated Built Heritage

  • Two Provincial Heritage Properties
  • Documentation produced
  • Mitigation measures including landscaping

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Next Steps and How to Stay Informed

  • Ongoing construction
  • Review and response to comments
  • DCR No. 2 review period anticipated for January 2020
  • DCR No. 3 review period anticipated for Winter/Spring 2020
  • Travelers can expect to have full use of the expanded facility by late 2022

There is a PIC Comment Form available on the website. Please provide comments on the PIC by October 31, 2019. For more information on the Project or to contact the WCC Project Team:

Email : info@401expansion-mississauga-milton.ca Phone: 1-888-619-1668 (24 hour) Project Website: www.401expansion-mississauga-milton.ca

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