Davenport Diamond Public Open House - For more info go to: metrolinx.com/davenport For further feedback
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Davenport Diamond Public Open House
For more info go to: metrolinx.com/davenport
For further feedback: Davenport@metrolinx.com
NOVEMBER 20, 2019
PROJECT OVERVIEW
What is the project?
The Davenport Diamond refers to the intersection where the Barrie GO corridor meets the CP rail
tracks near Dupont Street. The Davenport Diamond Grade Separation Project will prepare and
complete the construction of an elevated twin-track guideway between approximately Bloor Street
and Davenport Road west of Lansdowne Avenue, eliminating at-grade crossings including the busy
CP Rail intersection near Dupont Street.
Why is it happening?
The Davenport Diamond is one of the busiest train intersections in North America. As Metrolinx
connects our region with two-way all-day GO service, it means more trains will be passing through
and we need a solution to this congestion problem.
Who is the builder?
Graham Commuter Rail Solutions was selected by Metrolinx and Infrastructure Ontario to construct
the Davenport Diamond Elevated Guideway.
DAVENPORT DIAMOND
CONSTRUCTION TIMELINE: BY MILESTONE
Contract Award July 2019
Detailed Design Diversion Track July 2019 – March 2020
Diversion Track Construction March – September 2020
Detailed Design Mainline Track July 2019 – September 2020
New West Mainline Construction September 2020 – May 2022
New East Mainline Construction May 2022 – March 2023
Final Completion May 2023
Public Realm Construction Summer 2023
Did you know? Davenport Diamond gets its name from the diamond-shaped crossing with CP rail line.
DAVENPORT DIAMOND
PUBLIC AMENITIES IN THE GUIDEWAY
• Guideway Cladding – The Guideway has been specially
designed with a continuous ribbon of lightly “bright” anodized
aluminum panels to gently reflect light, blend in with its
surroundings, and visually lighten the structure.
• Skylight – A continuous “skylight” element designed to bring
light and rainwater to the area under the bridge. This fosters
plant growth in the landscaped areas beside the multi-use path
by allowing natural irrigation of the plantings from rainfall.
• Lighting – An enhanced lighting aims to increase safety and
bring a sense of delight to the Greenway while minimizing the
light pollution to nearby residences.
• Noise and Vibration Mitigation – For sound mitigation,
acoustic treatment includes sound absorptive treatment on the
inside of the 2-meter sound barrier. Taller barriers at-grade will
be examined during detailed design, as well as vibration Bridge Rendering at Dupont illustrating the
mitigation through bridge bearing pads and track fixation. Guideway Cladding
• Vandalism Prevention – Several strategies will be used to
address vandalism including employing Crime Prevention
Through Design (CPTED) principles. Generally, the Guideway
cladding is difficult to reach where it is raised, and as a surface it
is easier to clean than concrete.
DAVENPORT DIAMOND
UPDATE ON THE PUBLIC REALM
Benefits of separating the Public Realm from the Guideway project
• A Design-Bid-Build (DBB) procurement model provides greater control over the design process.
• Allows Metrolinx to engage the community more effectively and this procurement model gives us greater control
over what is built.
• Ensures that considerations around the long-term operations and maintenance are built into the design of the
public realm. The design will be developed with a focus on durability and ease of maintenance for both the park
elements and the rail infrastructure.
Schedule
• Public realm schedule has not changed: construction will start in 2023 after the Guideway is complete and finish in
about 2024.
• The Greenway is built after the Guideway project is completed so that we can properly restore and improve the
landscape without risking damage from Guideway construction.
Continuity of Community Engagement
• Metrolinx will work with the Community Advisory Committee (CAC) to ensure continuity in the design process for
the public realm.
Continuity in the design of the public realm
• The original design scope and intent will be the building blocks for the public realm project moving forward.
• Metrolinx will ensure that considerations around the long-term operations and maintenance are built into the
design of the project.
DAVENPORT DIAMOND
GUIDEWAY: LOCAL NEIGHBORHOOD BENEFITS
• Some of the key features of the public realm
project will include sustainably designed
green spaces, new east-west connections, a
new multi-use trail, pedestrian bridges,
pedestrian underpasses, and enhanced
connections to transit.
• The Davenport Diamond Public Realm
Project can act a catalyst for social and
economic development – parks attract the
talent, which attracts the companies, which
drive economic growth.
• Opening up the rail corridor to public uses
(multi-use trail, parkland) will create new
primary frontages for the commercial and
industrial buildings adjacent to the corridor.
• The Davenport Diamond Public Realm
Project is intended to provide enhanced
connectivity to the communities on both
sides of the rail corridor and to pedestrian
and bicycle paths linking to other parts of
the city.
DAVENPORT DIAMOND
PROJECT OVERVIEW
The Davenport Diamond Grade Separation Project will prepare and complete the construction of an
elevated twin-track guideway between Bloor Street and Davenport Road west of Lansdowne
Avenue, eliminating at-grade crossings including the busy CP Rail intersection near Dupont Street.
N
DAVENPORT DIAMOND
BLOOR STREET WEST BRIDGE
Replacement of existing bridge over Bloor Street west of Lansdowne Avenue
N
Details:
• Maintain existing track on east side of existing bridge and removal of existing rail alignment
• Removal and replacement of west half of bridge
• Construction of new west mainline track on west portion of bridge
• Removal of existing track on east side of existing bridge
• Removal and replacement of east half of bridge
DAVENPORT DIAMOND
MECHANICALLY STABILIZED EARTH (MSE) WALLS AND PATON ROAD UNDERPASS
Construction of MSE walls to raise tracks to match grade of elevated guideway and new
pedestrian underpass to provide new pedestrian connectivity at Paton Road
N
Details:
• New diversion track installation on east side of rail corridor and removal of existing rail alignment
• Installation of underpass structure at Paton Road
• Construction of new MSE walls adjacent to and above underpass structure
• Installation of new west mainline track on top of MSE walls and removal of diversion track
• Installation of pedestrian pathway through underpass
DAVENPORT DIAMOND
WALLACE AVENUE BRIDGE
Construction of new bridge over Wallace Avenue to remove existing rail crossing
N
Details:
• New diversion track road crossing installation on east side of rail corridor, removal of existing rail alignment
• Construction of elevated guideway piers – concrete piles, cast-in-place concrete columns
• Construction of bridge south abutment – concrete piles, cast-in-place concrete abutment wall
• Tie in of south MSE wall to south abutment wall
• Installation of steel girders and concrete bridge deck
• Installation of new west mainline track on top of bridge structure & removal of diversion track road crossing
DAVENPORT DIAMONDDUPONT STREET BRIDGE REHABILITATION
Rehabilitation of existing bridge over Dupont Street to retain pedestrian connectivity between
north and south side of Dupont Street below new elevated guideway
N
Details:
• New diversion track installation on east side of bridge deck and removal of existing rail alignment
• Construction of elevated guideway – concrete piles, cast-in-place concrete columns, precast concrete girder
segments
• Installation of new west mainline track on top of elevated guideway and removal of diversion track on existing
bridge deck
• Partial demolition and reconstruction of existing bridge structure
DAVENPORT DIAMONDELEVATED GUIDEWAY
Construction of elevated guideway to remove at grade rail from existing corridor and tie into CP
Bridge and remove existing Davenport Diamond rail crossing
N
Details:
• New diversion track installation on east side of rail corridor, removal of existing rail alignment
• Construction of elevated guideway – concrete piles, cast-in-place concrete columns, precast concrete girder
segments
• Tie in of elevated guideway to new Wallace and CP bridges and MSE walls to the north and south of elevated
structure
• Installation of new west mainline track on top of elevated guideway and removal of diversion track in existing
rail corridor
DAVENPORT DIAMONDCP RAIL BRIDGE
Construction of new bridge over CP rails to eliminate existing diamond rail crossing
N
Details:
• New temporary Davenport Diamond installation (TDDI) on east side of existing rail and removal of existing
diamond rail crossing
• Construction of elevated guideway piers – concrete piles, cast-in-place concrete columns
• Construction of bridge north abutment – concrete piles, cast-in-place concrete abutment wall
• Tie in of north MSE wall to north abutment wall
• Installation of steel girders and concrete bridge deck
• Installation of new west mainline track on top of bridge structure and removal of TDDI rail crossing
DAVENPORT DIAMONDDAVENPORT ROAD BRIDGE REHABILITATION
Rehabilitation of existing bridge over Davenport Road
N
Details:
• Partial bridge rehabilitation
• Installation of new west mainline track on bridge structure
• Remaining partial bridge rehabilitation
DAVENPORT DIAMONDSAFETY: DURING CONSTRUCTION
During construction, necessary traffic accommodations and signage will be set at major
intersections to eliminate public interaction with construction and to inform pedestrians of
upcoming construction areas and detours.
SAFETY: AFTER CONSTRUCTION
The Davenport Diamond is one of the
busiest train intersections in North
America. As Metrolinx connects the region
with two-way all-day GO service, more
trains will be passing through this
intersection. The construction of the
elevated guideway for GO trains above
the CP rail tracks will resolve rail
congestion issues, while also removing
the risk of collision between GO trains
and CP at the existing intersection.
DAVENPORT DIAMOND 15NOISE AND VIBRATION: DURING CONSTRUCTION
Work will be designed to meet the City of Toronto bylaws for noise and vibration. Efforts to
reduce noise include: no blasting or pile driving, using saws wherever possible rather than
jackhammers, using mufflers or sound enclosures around generators, and scheduling most
noisy activities during the day.
Routine and continuous monitoring will be conducted during construction work to assess any
potential noise and vibration impacts to nearby properties and ensure they are within
guidelines.
DAVENPORT DIAMONDNOISE AND VIBRATION: AFTER CONSTRUCTION
Noise barriers will be present along the elevated guideway rail lines. Compliance monitoring
of noise and vibration will be completed during commissioning of the new rail lines to ensure
that all design levels for noise and vibration are achieved.
The new elevated railway will be provided with acoustically absorptive noise barrier walls. The
new elevated guideway structure is anticipated to reduce the vibration transmitted to
surrounding properties, minimizing the acoustic environment, and noise and vibration impacts.
Noise walls and sound absorbing pads
on elevated guideway
DAVENPORT DIAMONDNIGHT WORK
Why is there work at night within the rail corridor?
Certain construction activities and equipment are
limited to the window of time when CN/GO trains don’t
run (typically from the final train around 12:00AM until
6:00AM).
Night work will be required throughout the duration of
the project where necessary to limit interaction with
active trains and ensure the safety of crews working
within the rail corridor.
The community will be notified in advance of any
anticipated overnight work.
What sort of work activities will be happening?
Borehole drilling throughout the rail corridor occurred
during September/October 2019 in order to collect
geotechnical soil characteristics necessary for design
engineering.
Hydrovac equipment is anticipated to be present in the
corridor in order to expose utilities and collect design
information through November 2019. This equipment
will be mounted to the rails to attain access necessary
through the full corridor.
DAVENPORT DIAMONDACCESS AND STAGING
Construction Stage Access Points
HONI
Diversion Track Installation All Access Points
Caledonia Park Road
Bloor Street Bridge Bloor, Wade Foundry Ave
Replacement
South MSE Wall Construction Wade, Paton, Wallace
Wiltshire Avenue
Elevated Guideway Piling and Wallace, Antler, Campbell Powerhouse Street
Columns Campbell Avenue
Elevated Guideway Girder Wallace, Antler
Erection
Wallace Bridge Wallace Antler Street
Dupont Bridge Antler
North MSE Wall Construction Caledonia, Foundry, Wiltshire,
Wallace Avenue
Lansdowne Yard
Powerhouse Paton Road
Davenport Bridge Rehabilitation Caledonia, Foundry Wade Avenue
West Mainline Track Install Bloor, Caledonia, Powerhouse,
Foundry
Bloor Street
Potential Access Point
Diversion Track Removal, Final Bloor, Wade, Wallace, Foundry, Project Laydown Area
Grading and Landscaping Caledonia
DAVENPORT DIAMONDROAD CLOSURES
Bloor Street
Staged closures for removal and
reconstruction of new Bloor Street bridge
• Removal of existing girders
• Removal and replacement of north
and south abutments
• Installation of new girders
Closures will be in place for both the west
and east demolition and construction
DAVENPORT DIAMONDROAD CLOSURES
Wallace Avenue
Partial and full closures for:
• Installation of diversion track and at grade
crossing
• Construction of new Wallace Avenue
Bridge
• Removal of at grade crossing and diversion
track
Access point for construction traffic into rail
corridor
Antler Street
Closure of dead end at Antler Street as
access point to the rail corridor for
construction
Dupont and Davenport
Staged closures at each location for bridge
rehabilitation
DAVENPORT DIAMONDTREES AND VEGETATION
• Our contractor will have to remove some vegetation within Metrolinx’s right-of-way in order to
facilitate Guideway construction. But we’re also protecting many trees along the corridor,
particularly the Siberian Elm trees in our corridor that border on Campbell Park.
• A Vegetation Compensation Protocol is being developed for all our construction projects.
Compensation for trees within private lands, including those on the boundary between
Metrolinx and public or private lands, will follow the requirements of applicable bylaws and
regulations.
• The species will include native, drought and salt tolerant trees which can also provide seasonal
aesthetic benefits. These trees include honey, locust, eastern redbud, oak, maple and tulip trees.
Tree protection will be followed for the Siberian Elms in Campbell Park
DAVENPORT DIAMONDMAINTAINING CONNECTIVITY DURING CONSTRUCTION
Pedestrian and cyclist traffic will be affected during certain stages of construction to ensure
public safety. Work will be staged to reduce closures as much as possible and will provide
detour routes at all times.
Bloor Street West
• One sidewalk will remain open through different phases of the Bloor Street bridge construction where
possible.
• Sidewalk and cyclist routes will be closed during full road closures with detours.
Wallace Avenue
• Full weekend road and sidewalk closures will be required for rail installation and removal and bridge
girder erection.
• Local access to Campbell Avenue, Rankin Crescent and Ward Street will continue to be maintained.
Dupont Street and Davenport Road
• Intermittent closures will be required at Dupont and Davenport during bridge rehabilitation, pedestrian
traffic will be maintained.
• Full weekend road closures at Dupont Street will be required for the elevated guideway girder installation
over the roadway. Pedestrian traffic will be rerouted during closures.
DAVENPORT DIAMONDCONNECTIVITY AFTER CONSTRUCTION
Following completion of construction, pedestrian connectivity will be vastly improved.
Paton Road Underpass
• Introduction of underpass structure at Paton Road to provide connectivity between east and west sides of
existing corridor and access to new park space.
Wallace Avenue
• Elevated guideway over Wallace Avenue will eliminate existing rail crossing in increasingly busy road
corridor.
Dupont Street
• Elevated guideway over the existing Dupont Street bridge will provide pedestrian connectivity between the
north and south sides of Dupont Street and create access to new park space.
Elevated Guideway
• Introduction of elevated guideway provides access to existing rail corridor for pedestrian access and park
space.
Multi-Use Trail
• The new multi-use trail will become an integral part of a comprehensive pedestrian and bicycle network
across the City of Toronto.
DAVENPORT DIAMONDIMPROVED MOBILITY
The upgrades to the Davenport Diamond will allow for increased GO rail service on the Barrie
GO corridor and will help support two-way, all-day GO rail service.
By transforming GO Rail from a 9-to-5 commuter
service to a two-way, all-day transit service, Ontario
will benefit from the following:
• More incentive for travellers to use the train as a
travel mode
• Faster travel times for transit riders and road users
• Enhanced rail service with trains at least every 15
minutes, all day, in both directions over core
portions of the network
• Greater access to GO Transit and seamless rail
travel throughout the GTHA
DAVENPORT DIAMONDHOW TO STAY INFORMED
Communication Methods: Engagement Tools:
• Email Messages to • Public Meetings
Davenport Diamond • Technical Tours
mailing list
• Pop Ups
• Construction Notices
• School Visits
• Sharing through elected
• Working or Advisory
officials (e-newsletter)
Group meetings
• Wayfinding and Signage
• Business Liaison
• Project Website Updates
• Special Events
• Frequently Asked
Questions
Stay Informed: metrolinx.com/davenport
Questions or Comments: Davenport@metrolinx.com
Claire Yang, Community Relations and Issues Specialist
Tel: 416-202-7301 / E-mail: Claire.Yang@metrolinx.com
DAVENPORT DIAMONDCOMMENTS AND QUESTIONS
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