Highway 407 East, Brock Road Interchange

Transcription

Highway407East,BrockRoadInterchange
DESIGN AND CONSTRUCTION REPORT
PREPARED FOR:
407 ETR CONCESSION COMPANY LIMITED AND
MINISTRY OF TRANSPORTATION
16.12040.001.EN1 | February 2013
407 ETR Concession Company Limited
Design and Construction Report
Ministry of Transportation
THEPUBLICRECORD
Copies of this document have been submitted to the following offices of the Ministry of the
Environment to be placed in the Public Record:
The Ministry of the Environment
Central Region Office
5775 Yonge St.
8th floor
North York ON M2M 4J1
Toll free: 1-800-810-8048
Tel: (416) 326-6700
This report is also available for review during regular business hours at:
The Corporation of the
City of Pickering
Clerk’s Office
One the Esplanade
Pickering, ON
Pickering Public Library, Greenwood Branch
3540 Westney Rd
South of 6th Concession
Greenwood, ON
The Ministry of Transportation
Central Region
Strategic Highway Management
Office
7th Floor, Building ‘D’
1201 Wilson Avenue
Downsview, ON
407ETR
Customer Service Centre
6300 Steeles Ave. West
Woodbridge, ON
A digital copy of the report is also available to be viewed online at:
www.highway407east.com/project-info/project-background/reports/
Ce document hautement specialise n’est disponible qu’en Anglais en vertu du règlement 671/92
qui en exempte l’application de la Loi sur les services en français. Pour de l’aide en français,
veuillez communiquer avec Heather Edwardson, ministère des Transports, au (905) 704-2210.
MMM Group Limited
i
2013
TABLE OF CONTENTS
1 Project Overview.................................................................................................................... 1 1.1 Background Environmental Assessment ........................................................................ 1 1.2 Summary Description of the Undertaking ....................................................................... 3 1.3 Refinement to Brock Road Interchange ......................................................................... 7 1.3.1 1.4 2 3 Purpose of the Design and Construction Report .......................................................... 11 Consultation Process ........................................................................................................... 11 2.1 Public Information Centre ............................................................................................. 12 2.2 Agency Consultation..................................................................................................... 13 Detailed Description of the Recommended Design ............................................................. 15 3.1.1 Structures .............................................................................................................. 15 3.1.2 Utilities ................................................................................................................... 16 3.1.3 Staging .................................................................................................................. 17 3.1.4 Community Value Plan .......................................................................................... 17 3.2 Environmental Issues and Commitments ..................................................................... 19 3.2.1 4 Net Effects Assessment of Design Change ............................................................ 7 Natural and Physical Environment ........................................................................ 19 3.2.1.1 Fisheries and Aquatic Habitat ........................................................................ 19 3.2.1.2 Wildlife............................................................................................................ 26 3.2.1.3 Vegetation ...................................................................................................... 29 3.2.1.4 Drainage ......................................................................................................... 32 3.2.1.5 Groundwater .................................................................................................. 35 3.2.1.6 Erosion and Sediment Control ....................................................................... 39 3.2.2 Cultural Heritage Environment .............................................................................. 41 3.2.3 Socio-Economic Environment ............................................................................... 42 3.2.3.1 Property Requirements and Access ............................................................... 42 3.2.3.2 Air Quality ....................................................................................................... 43 3.2.3.3 Management of Excess Material and Disposal of Waste ............................... 43 Summary of Environmental Concerns and Commitments ................................................... 44 4.1 Endangered Species Act Permit Applications .............................................................. 44 5 Conditions of MOE Approval ............................................................................................... 45 6 Environmental Compliance Documentation ......................................................................... 45 6.1 Environmental Management Plan ................................................................................ 45 6.2 Annual EA Compliance Monitoring Reporting .............................................................. 45 MMM Group Limited
ii
2013
7 Monitoring ............................................................................................................................ 52 7.1 8 Design and Construction Report
Construction Monitoring ................................................................................................ 52 References .......................................................................................................................... 53 LIST OF FIGURES
Figure 1: Project Location Plan .................................................................................................... 2 Figure 2: Interchange Plan ........................................................................................................... 4 Figure 3: EA / Detail Design Comparison .................................................................................... 6 Figure 4: Community Value Plan ............................................................................................... 18 Figure 5: Existing Natural Environment Conditions ................................................................... 21 LIST OF TABLES
Table 1.1: Summary Of Comparison Between EA Interchange Design And Design
Refinements ................................................................................................................ 9 Table 2.1: Summary of Comments Received at the PIC ........................................................... 12 Table 2.2: Summary of Agency Consultations ........................................................................... 13 Table 3.1: List of Structures ....................................................................................................... 15 Table 3.2: Summary of Site Specific Temporary and Permanent Impacts Related to Fish and
Fish Habitat ............................................................................................................... 22 Table 3.3: Summary of Wildlife Passage and Openness Ratios for Structures ......................... 27 Table 3.4: Summary of Storage Stormwater Management Ponds ............................................ 33 Table 3.5: Groundwater Conditions at Watercourse Crossings and Sites for Stormwater
Ponds ........................................................................................................................ 36 Table 6.1: Summary of Environmental Concerns and Commitments for the Highway 407ETR
East / Brock Road Interchange ................................................................................. 46 Table 6.2: Summary of EA Commitments and EA Compliance ................................................. 49 APPENDICES
APPENDIX A: PUBLIC CONSULTATION
APPENDIX B: DESIGN AND CONSTRUCTION STAGING PLANS
MMM Group Limited
iii
2013
Additional information about this project is also available by contacting the key Project Team
members identified below:
MMM Group Limited
407 ETR Concession
Company Limited
Alla Dinerman, P.Eng.
Peter Baldasaro, P.Eng.
Frank Martins, P.Eng.
Jeff Warren, B.Sc.
Paul Ruttan
Chris Brown
Preparation of the contract documentation will proceed after completion of this Detail Design.
The final design plans may identify minor design modifications or refinements that occur as part
of the standard progression of Detail Design development. Any required modifications will
adhere to the general intent of the EA Commitments made herein.
MMM Group Limited
iv
2013
ACRONYMS
AA
ARCHAEOLOGICAL ASSESSMENT
AAF
AVOIDANCE ALTERNATIVE FORMS (MNR)
ANSI
AREA OF NATURAL AND SCIENTIFIC INTEREST
CPR
C ANADIAN P ACIFIC RAILWAY
DCR
DESIGN AND CONSTRUCTION REPORT
DFO
DEPARTMENT OF FISHERIES AND OCEANS
EA
ENVIRONMENTAL ASSESSMENT
EAPD
ENVIRONMENTAL ASSESSMENT AND PRELIMINARY DESIGN
EBL
E ASTBOUND L ANE
EPL
ENHANCED PROTECTION LEVEL (LEVEL 1)
ESC
EROSION AND SEDIMENT CONTROL
ETR
EXPRESS TOLL ROUTE
IGF
INFORMATION G ATHERING FORM (MNR)
LOA
LETTER OF AUTHORIZATION
MASL
METRES ABOVE SEA LEVEL
MESP
M ASTER ENVIRONMENTAL SERVICING PLAN
MNR
MINISTRY OF N ATURAL RESOURCES
MOE
MINISTRY OF THE ENVIRONMENT
MTCS
MINISTRY TOURISM, CULTURE AND SPORT
MTO
MINISTRY OF TRANSPORTATION
PIC
PUBLIC INFORMATION CENTRE
PTTW
PERMIT TO T AKE W ATER
ROW
RIGHT-OF-W AY
SAR
SPECIES AT RISK
SWL
STATIC W ATER LEVEL
TESR
TRANSPORTATION ENVIRONMENTAL STUDY REPORT
TRCA
TORONTO AND REGION CONSERVATION AUTHORITY
WBL
WESTBOUND L ANE
MMM Group Limited
v
2013
1 Project Overview
MMM Group has been retained by Highway 407 ETR to carry out the detail design of the
Highway 407 East / Brock road Interchange (Figure 1). The preliminary design was approved
in 2010 as part of the 407 East Environmental Assessment. The detail design includes
refinements made to the EA approved preliminary design. Refinements included the
realignment of Brock Road to the west of Sideline 16 Road to avoid a protected archaeological
site and the profile arrangement that required Highway 407 to be built over Highway 7 was
changed to have Highway 7 travelling over Highway 407. The detail design including the design
refinements are described in this report.
1.1 Background Environmental Assessment
The 407 East Environmental Assessment (EA) Study was conducted as an Individual EA, in
accordance with the Ontario Environmental Assessment Act and was approved by the Minister
of the Environment on June 3, 2010, allowing the project to proceed, subject to certain
conditions.
The project also underwent a review under the Canadian Environmental
Assessment Act (CEAA) and a decision statement was issued by the federal Minister of the
Environment on July 7, 2011 allowing the project to proceed.
The location of the Brock Road/407 interchange was based on an approved Class
Environmental Assessment conducted by the Regional Municipality of Durham in 2003. The EA
identified Brock Road to be realigned to the vicinity of Sideline 16. Archaeological field
investigations carried out for the area of the Brock Road realignment identified the presence of a
previously protected archaeological site. To avoid impacting the site, MTO modified the design
of the interchange that included realigning Brock Road farther to the west.
An Assessment of Design Refinements to the 407 East Brock Road Interchange was prepared
in May, 2012. This report documented the changes between the design approved during the
407 East EA and the proposed design refinements. Several alternatives were considered in
order to avoid the archaeological site and the change in the Brock Road alignment and new
position of the interchange resulted in minor changes to the environmental impacts previously
assessed in the 407 East EA. Recommendations and commitments were identified to be
carried out during Detailed Design.
Chapter 12 of the 407 East Transportation Corridor EA Report provided an outline for
implementing design changes to Highway 407 East. In accordance with the provisions of
Chapter 12 of the EA report, design changes to the Brock Road interchange are considered
minor. The required design refinements are not considered significant as they will not result in
any new significant environmental impacts.
RELATED STUDIES
Two related studies have been undertaken within the vicinity of the Brock Road interchange.
These are the Brock Road Environmental Assessment and the Highway 7 Widening from Brock
Road to Highway 12.
MMM Group Limited
1
2013
Brock Road Environmental Assessment
The Region of Durham undertook a Schedule ‘C’ Class Environmental Assessment Study to
examine transportation concerns within the Brock Road (Regional Road 1) corridor between
south of Bayly Street and north of Highway 7, north of the community of Brougham. The results
of the study were documented in the Region of Durham Brock Road from south of Bayly Street
to north of Highway 7, City of Pickering Class Environmental Assessment Environmental Study
Report (2003).
There will be some changes to the Brock Road realignment due to the design refinements, as
approved under the Class EA process. The changes to the alignment and potential for new
environmental effects were described in the Assessment of Design Refinements to the 407 East
Brock Road Interchange.
Highway 7 Widening from Brock Road to Highway 12
The MTO undertook a detail design study for the widening of Highway 7 between Brock Road in
Pickering and Brock Street in Whitby. This project was carried out in accordance with the
requirements of the MTO Class Environmental Assessment for Provincial Transportation
Facilities for a Group ‘B’ project in 2008 (GWP 2110-05-00). Within the western project limits,
Highway 7 was designed to transition into the Highway 407/Brock Road interchange.
1.2 Summary Description of the Undertaking
The project involves a detail design of the new Highway 407/Realigned Brock Road Interchange
(Parclo “A” interchange design) including realignments of Highway 7 and Brock Road to
accommodate the interchange within the Region of Durham, in the City of Pickering (Figure 2).
The design involves the construction of a new six-lane section of Highway 407, realigned fourlane section of Highway 7, realigned four-lane section of Brock Road, rural connecting
roadways, local road closures, intersections, new bridges and retaining walls, structural and
drainage culverts, utility relocations, illumination and ATMS, traffic signals, and stormwater
management provisions including retention ponds and enhanced swales.
The following detailed features will be provided:

Separation of the existing eastbound and westbound lanes of Highway 407 from
approximately 1.2 km west of the existing Highway 407/Brock Road intersection to the
existing Highway 7/Sideline 16 Road intersection;

New mainline Highway 407 East from the Highway 7/ Sideline 16 Road, easterly 850m,
3 km (including the separation) ;

A new Highway 407/ realigned Brock Road Interchange;

The realignment of Brock Road within the limits of the new interchange, 3.5 km ;

The realignment of Highway 7, 1.2 km;

The realignment of Sideline 16, rural connecting roadway north of Highway 7;

Cul-de-sac closures for existing Brock Road, north and south of Highway 7; and Sideline
16, south of Highway 7; and

New southbound entranceway into the future transitway station south of the interchange
on the realigned Brock Road.
MMM Group Limited
3
2013
Brock Road
1
0
6
M- TE 1
SI
Highway 7
Highway 407
10
M- TE 7
SI
3
M- TE 4
SI
Brougham C
reek
Tributary B
MH
X
X
X
X
X
3
M- TE 4
SI
9
M-
X
8
M-
X
Brougham C
reek
X
X
W
2
M- TE 3
SI
SWM Pond 03
5
M- TE 5
SI
SWM Pond 07
S
4 3A
M- ITE
S
Brougham C
reek
Tributary A
SWM Pond 07
E
Client:
407 ETR CONCESSION COMPANY LIMITED
Title:
Interchange Plan
Prepared by:
Brock Road
16-12040-001
Date: December 2012
Scale: 1:6000
Figure: 2
Review: SR
The design follows the approved “407 East Individual Environmental Assessment (EA) and
Preliminary Design study” (approved June 3, 2010) and the “Assessment of Design
Refinements to the 407 East Brock Road Interchange” (LGL, 2012).
As part of the work the project team has undertaken a review of the road and bridge geometric
configuration, and stormwater management facilities, which identified opportunities to optimize
the preliminary design documented in the approved EA.
A Value Engineering exercise was conducted with the objective to minimize construction
footprint, reduce the significant earth borrow requirements and therefore simplify staging and
reduce duration of construction.
As a result of the value engineering the bridge crossing of Highway 7 and Highway 407 was
reversed through lowering the Highway 407 profile and raising the Highway 7 profile over
Highway 407 at a gentle grade. In this configuration the horizontal geometry of both roadways is
maintained with the exception of minor tweaks.
This new configuration offered significant benefits from the safety and operations, environment,
construction and cost perspective.
MMM Group Limited has worked constructively with the Ministry of Transportation (MTO), the
Ministry of Natural Resources (MNR), Fisheries and Oceans Canada (DFO), Toronto Region
Conservation Authority (TRCA) and others, toward preparing final safe and efficient design. In
general, the results of proposed refinements are viewed as beneficial from the overall
standpoint of ecological and social-economic perspectives.
The effect of depressing Highway 407 beneath Highway 7 benefits the project in a significant
manner. First and foremost, it allows Highway 407 to better conform to the existing topography,
substantially reducing overall fill requirements, the highway footprint area and, bridge sizes. Fill
reduction in stream valley corridors generally favours vegetation/habitat retention and mammal
movement within valley lands. Vegetation removal for construction throughout the 407
alignment is also reduced. More specifically, recent design changes would result in both
environmental and, safety/ operations benefits as follows:
1. Improvements to the safety and operation of Highway 7 and Brock Road through flatter
vertical alignments (3% instead of 4.8% grade).
2. Reduction in footprint of the interchange and therefore reduced impact to the natural
environment as elaborated below, Figure 3 shows the change in fill requirements
between the EA and the design change:
3. Fill placement for the Highway 407 is minimized at the west approach to Brougham
Creek Tributary B, thereby reducing potential to disrupt groundwater discharge in the
lowlands area, where the water table is close to the surface, and potentially under
artesian conditions.
4. The need to excavate below ground water level for the realigned Highway 7 is reduced,
thereby reducing the risk of intercepting the ground water table in the area, which is
close to the surface, and potentially under artesian conditions.
5. Elimination of the need for an off-line detour to construct the Highway 407 mainline and
reduction of number of stages required during construction. Therefore the construction
staging will result in a reduced footprint, reduced extent of the work and shorter
construction duration.
MMM Group Limited
5
2013
EA Footprint
Detail Design Footprint
Highway 7
M
HA
UG
O
BR
EE
CR
K
Y
AR
UT
IB
TR
Highway 407
B
Client:
407 ETR CONCESSION COMPANY LIMITED
Title:
EA / Detail Design Comparison
Prepared by:
16-12040-001
Date: December 2012
Scale: 1:2000
Figure: 3
Review: JW
6. The bridge crossing of Highway 7 over Highway 407 as proposed in the revised design will now
span 195 m over Brougham Creek Tributary B, enabling the crossing of large mammals in the
corridor. The previous design included a culvert ( 4.8 m (h) x 3 m (v) x 52 m (l)) crossing of
Highway 7 which provided reduced passage opportunity for larger wildlife
7. The bridge crossing of Highway 407 over Brougham Creek Tributary B (Site 7) will be
reduced to a single span from a 3-span structure, therefore reducing the duration of
construction adjacent to the sensitive creek.
8. Reduction in the amount of earth fill imported to the site (borrow). Importing earth to the
project requires a lengthy screening procedure prior to its use. In addition, placing of
materials in high fills will potentially require preloading and will prolong the period of
construction and disturbance. The design results in 212,660 m3 less fill.
1.3 Refinement to Brock Road Interchange
1.3.1 Net Effects Assessment of Design Change
At the initiation of the detail design MMM Group conducted a value engineering exercise to
identify opportunities to improve the value and efficiency of the design beyond the EA approved
design. From this it was identified that value and efficiency could be achieved by lowering the
Highway 407 profile and raising the Highway 7 profile over Highway 407 at a gentle grade. In
this configuration the horizontal geometry of both roadways is maintained with the exception of
minor tweaks (Figure 3). This new configuration offered significant benefits from the safety and
operations, environment, construction and cost perspective.
Chapter 12 of the EA identified the amending process to address and document design
changes that arise during detail design. To ensure that the new design was consistent with the
intent of the E.A., an assessment of impacts of the design refinement has been carried out to
identify whether the design modification had a minor or major effect.
The description of the design is presented in section 1.2.
1) DESCRIPTION OF DESIGN REFINEMENT AND BENEFITS
The effect of taking Highway 7 over Highway 407 benefits the project in a significant manner.
First and foremost, it allows Highway 407 to better conform to the existing topography,
substantially reducing overall fill requirements, the highway footprint area and, bridge sizes. Fill
reduction in stream valley corridors favours vegetation/habitat retention and mammal movement
within valley lands. Vegetation removal for construction throughout the 407 alignment is
reduced. More specifically, recent design changes would result in both environmental and,
safety/ operations benefits as follows:
i)
Improvements to the safety and operation of Highway 7 and Brock Road through
flatter vertical alignments (3% instead of 4.8% grade).
ii) Reduction in footprint of the interchange and therefore reduced impact to the natural
environment as elaborated below:
a. Fill placement for the Highway 407 is minimized at the west and east
approach to Brougham Creek Tributary B, thereby reducing potential to
disrupt groundwater discharge in the lowlands area, where the water table is
close to the surface, and potentially under artesian conditions. The area of
MMM Group Limited
7
2013
reduced fill is shown in Figure 3. With this design revision, the area of fill is
reduced from 30, 500 m2 to 27,000 m2 and the fill volume is reduced from
273,000 m3 to 60,340 m3
b. The need to excavate below ground water level for the realigned Highway 7
is reduced, thereby reducing the risk of intercepting the ground water table
in the area, which is close to the surface, and potentially under artesian
conditions.
iii) Elimination of the need for an off-line detour to construct the Highway 407 mainline
and reduction of number of stages required during construction. Therefore the
construction staging will result in a reduced footprint, reduced extent of the work
and shorter construction duration.
iv) The bridge crossing of Highway 7 over Highway 407 as proposed in the revised
design will now span the Brougham Creek Tributary B, enabling the crossing of
large mammals in the corridor, which was not previously provided. At the Highway
7 crossing the tributary was enclosed in a culvert 4.5 m (horizontal) x 3 m (vertical)
x 52 m (length). With the revised design, Highway 7 now spans the tributary and
valleyland. The span length is 195 m and the height of the structure above the
valleyland ranges from 4.9 m at the abutments to 20 m at the tributary. This
provides a large opening for all groups of wildlife to pass beneath Highway 7 and
Highway 407. The bridge crossing of Highway 407 over Brougham Creek Tributary
B (Site 7) will be reduced to a single span from a 3-span structure, therefore
reducing the duration of construction adjacent to the sensitive creek.
v) Reduction in the amount of earth fill imported to the site (borrow). Importing earth to
the project requires a lengthy screening procedure prior to its use. In addition,
placing of materials in high fills will potentially require preloading and will prolong
the period of construction and disturbance. With the design revision, the volume of
fill required is reduced by 212,660 m3
2) ASSESSMENT OF SIGNIFICANCE OF DESIGN CHANGE
The information provided in Table 1.1, identifies the effect of the design change on the
environmental factors that occur within the study area of the Brock Road/407 interchange.
For each environmental factor the change in environmental effects associated with the
design change is discussed. The third column of the table then identifies any changes to
commitments, additional approval requirements or mitigation measures and whether they
differ significantly from the EA commitments.
MMM Group Limited
8
2013
Table 1.1: Summary Of Comparison Between EA Interchange Design And Design Refinements
Environmental
Factor
Changes in Environmental Effects
Associated with the Design
Refinements
Fish and Fist
Habitat
Approved EA
At Site 7, Highway 7 crossing of
Brougham Creek Tributary B, the
watercourse is enclosed in a 4.8 m (h) x
3 m (v) x 52 m (length) culvert.
Changes to Commitments for
Securing Approvals and
Permits, or Mitigation
Measures
Discussions are underway to
seek ESA approval from MNR
for the natural channel design
at Site 7.
The EA identified a single span of 44 m
(for each of WBL/EBL of Highway 407
over Highway 7. This resulted in fill
embankments which extended into the
buffer habitat of Brougham Creek
Tributary B.
Design Refinement
Highway 7 now spans Brougham Creek
Tributary B with a three span structure
(total span length – 195 m) which allows
the Highway 7 culvert to be removed
and the natural channel to be restored.
Vegetation and
Vegetation
Communities
Highway 7 over 407 is raised on piers
which reduces the fill footprint and
reduces overall encroachment into buffer
habitat of Brougham Creek Tributary B.
Approved EA
Vegetation units affected by the EA
include WS16-1 (vegetation type SWC31) and C5S16-1c (FOD). The total area
of vegetation removed from these units
was 0.38 ha.
No new approvals, permits or
mitigation
measures
are
required.
Design Refinement
Removal of portions of vegetation units
WS16-1 and C5S16-1c will occur with
the design refinement but will be
reduced to 0.16 ha.
MMM Group Limited
9
2013
Environmental
Factor
Refinements
Wildlife and
Wildlife Habitat
Approved EA
At Site 7, Highway 7 crossing of
Brougham Creek Tributary B, the
watercourse is enclosed in a 4.8 m (h) x
3 m (v) x 52 m (length) culvert.
Measures
No additional mitigation will be
required to address wildlife
passage.
Upstream of Highway 7, Highway 407
spans the tributary with a three span
structure with a total span length of 75
m.
Design Refinement
Highway 7 over Highway 407 allows for
the removal of the Highway 7 culvert and
replacement with a 195 m span length
and height that approaches 20 m. This
is sufficient to provide passage for small
and large wildlife.
Hydrogeology
The 407 crossing of the tributary is
reduced to a single span of 38 m and a
minimum height of 5.5 m. This achieves
an openness ratio of 2.26 which exceeds
the openness ratio target of 0.6 to 1 to
encourage deer use.
Small differences between the EA and
Design Refinement are considered to be
a neutral effect.
Noise
No change from Design Refinement
Air Quality
Landscape
Composition
The Design Refinement will require
some small changes to the Community
Value Plan (CVP) that was prepared
during the EA. The changes only relate
to a small change in the location of
stabilization and edge treatments. This
is considered to be a neutral effect.
MMM Group Limited
10
Groundwater
inputs
to
Brougham Creek Tributary B
are linked to maintaining
redside
dace
habitat.
Discussions are underway to
seek ESA approval from MNR
for the Site 7 crossing.
mitigation
measures
are
required.
mitigation
measures
are
required.
The CVP has been revised to
address the design refinements
at the Brock Road Interchange.
2013
Environmental
Factor
Refinements
Socio-Economic
The Design Refinement does not result
in a change to effects to the socioeconomic environment compared to the
approved EA.
Overall, the impacts to agriculture are
similar to the EA approved interchange
design.
The mitigation measures that were
included in the 407 East EA are
sufficient to address any waste
management issues in the vicinity of the
Brock Road interchange.
No additional archaeological sites are
impacted due to the realignment of
Brock Road and Highway 7 over
Highway 407.
Agricultural
Waste
Management and
Contamination
Archaeology
Built Heritage
Measures
mitigation
measures
are
required.
mitigation
measures
are
required.
mitigation
measures
are
required.
mitigation
measures
are
required.
mitigation
measures
are
required.
Based on the foregoing analysis it is concluded that the net effect of changes related to the
design refinement will not result in a significant change or effect. The main factors are the
reduced footprint of the interchange, the opening of the Site 7 crossing to permit both small and
large wildlife passage and reduced construction at Highway 407 crossing of Brougham Creek
Tributary B which is beneficial to redside dace habitat. In accordance with the conditions for
amending the EA it is concluded that the design refinement is considered an insignificant or
minor change relative to the approved EA.
1.4 Purpose of the Design and Construction Report
The purpose of this Design and Construction Report (DCR) is to document the proposed design
of the Highway 407/Brock Road interchange. The design reflects detailing the preliminary
design since the EA approval and includes the refinements made as part of the detail design
process. The following sections present the consultation carried out during detail design,
existing conditions and effects to the physical, natural and socio-economic environment,
impacts and mitigation, environmental protection measures, monitoring and commitments to
future works and activities.
2 Consultation Process
Consultation is an integral component of the Class EA process and is carried out in conjunction
with transportation engineering and environmental protection principles. Consultation involves
initiating and maintaining contact with external agencies (federal, provincial, municipal); First
Nation communities and local stakeholders to ensure that issues are addressed and decisions
are made after considering environmental impacts.
MMM Group Limited
11
2013
External consultation involved notification of project commencement and to notify interested
stakeholders and agencies of a Public Information Centre to present the detail design. The
consultation program involved the following elements:

Newspaper notification to identify the initiation of the study and provide details for the
Public Information Centre (PIC)

Newspaper notification to identify the filing of and 30-day public review period for the
DCR.

Mailings to the agencies, First Nations and stakeholders

Meetings with provincial, federal and municipal agencies, Toronto Region Conservation
Authority, utility companies and landowners
A comprehensive list of external agencies, municipalities and First Nation communities
contacted and informed of the proposed work is included in the Appendix A.
2.1 Public Information Centre
A Public Information Centre (PIC) was held on November 21, 2012 to present the proposed
detail design for the Highway 407 East / Brock Road Interchange to the public. The PIC was
held at Brougham Hall in the Village of Brougham.
A Notice of Detail Design Study and Public Information Centre was published in the
Oshawa/Whitby/Clarington This Week on November 14, 2012 and in the Ajax/Pickering News
Advertiser on November 16, 2012. A copy of the Notice and examples of agency & First Nation
letters are included in Appendix A. An advanced session for review agencies was held from
3pm to 4pm, followed by the public open house from 4pm to 8pm. Ten (10) people signed in
during the Agency session of the PIC that included representatives from the Region of Durham
and City of Pickering. No comments were received during the Agency session. Ten (10)
people signed in during the open house session of the PIC. Two comments were submitted at
the time of the PIC. No additional comments were received by December 5, 2012. A summary
of the comments and the response or action taken are summarized in Table 2.1.
Table 2.1: Summary of Comments Received at the PIC
Summary Comments Received
A stakeholder requested a copy of the
Interchange drawing.
A concern was raised about the potential for
encroachment of the Brock Road North
bypass into lands associated with the
“Matthews Family Cemetery”
Summary of Response and/or Action Taken
The drawing was provided to the stakeholder
The Heritage Reports for the project were
reviewed to confirm the location of this
heritage feature relative to the Interchange. It
has been confirmed that MTO’s assessment
during the EA did not reveal the location of a
cemetery or gravestone in the Brougham area
that corresponds to the identified Matthews
Family Cemetery.
A direct response was not provided to the
stakeholder as they did not provide contact
information.
MMM Group Limited
12
2013
2.2 Agency Consultation
Provincial and federal government agencies were contacted and informed of the proposed work.
Letters were mailed to all relevant agencies to provide details about the Detail Design study and
invite representatives to attend the PIC. Examples of project notifications to agencies are found
in Appendix A.
Due to the requirement for permits and approvals from review agencies, several meetings were
held between the design team and the various agencies. MMM, 407ETR and MTO carried out
consultation with several regulatory and local agencies. These agencies are listed in Table 2.2
along with a summary of issues and topics of consultation applicable to each.
Table 2.2: Summary of Agency Consultations
Agency
Ministry of Natural
Resources
(MNR)
Toronto and Region
Conservation Authority
(TRCA)
Durham Region
City of Pickering
MMM Group Limited
Issue / Topic

Species at Risk: Barn Swallow and Redside Dace

Permitting under the Endangered Species Act (ESA)

Channel Realignments and crossing structure sizing

Stormwater Management

Permit to Take Water

Access Routes, Access/mitigation plans

Pre-Construction Drilling

Beaver Dam Removal (geotechnical)

Permissible in-water timing windows for construction

Construction staging

Impact Assessment

Erosion control in channel designs

Stormwater management ponds

Tie in to Regional Roads

Protect for 6 laning of Brock Road in future

Traffic design considerations

4 to 2 lane transition from the interchange to south limit
of project

Design speed

Provision for future bike lanes

Community Value Plan

Turning basin designs
13
2013
Agency
Department of Fisheries and
Oceans
(DFO)
Utilities
Ministry of the Environment
Issue / Topic

Stormwater Management facilities designs

Loss of Fish Habitat

Utility Conflicts / Relocation Strategy

Construction Staging

Electrical Coordination

Groundwater and Wells

Detail design to be carried out in accordance with EA
approval

Design refinements to follow intent of the approved EA
(MOE)
MINISTRY OF NATURAL RESOURCES
Extensive consultation with the MNR was required through the detail design and involved
regular monthly meetings to discuss and review the designs. The MNR review of the project
relates to the review and approval of the works with the potential to impact species afforded
protection under the Endangered Species Act. Therefore, these consultations were intended to
facilitate the review and approval process with respect to the ESA permit requirements for the
project. As such, they will continue through to the receipt of approvals.
Meetings and discussions with the MNR involved the following:



Pre-consultation discussion to outline project status and requirements / progress
o Topic of discussion: refinement of profile for Hwy 7 to cross above Hwy 407
o Changes to proposed channel realignments and ESA permit documentation
requirements
Fisheries watercourses – coordination / progress
o Proposed channel design elements, crossing size assessment (Sites
102/101/4/5), and general construction staging
o Impact Assessment documentation process, Site 7 Design Brief, and SWM
Designs
o Staging at Site 7
o Site 3/3a Design Brief and SWM Design updates
Submission of Information Gathering Forms (IGF), Avoidance Alternative Forms (AAF),
Permit Application Form and supporting Impact Assessment Tables and Figures; MNR
review and comments
MMM Group Limited
14
2013
3 Detailed Description of the Recommended Design
This section describes the recommended design, including refinements, environmental issues,
mitigation and commitments to future work.
The major features of the detail design for the Interchange include:

Separation of the existing eastbound and westbound lanes of Highway 407 from
approximately 1.2 km west of the existing Highway 407/Brock Road intersection to the
existing Highway 7/Sideline 16 Road intersection;

New mainline Highway 407 East from the Highway 7/ Sideline 16 Road, easterly 850m,
3 km (including the separation) ;

A new Highway 407/ realigned Brock Road Interchange;

The realignment of Brock Road within the limits of the new interchange, 3.5 km ;

The realignment of Highway 7, 1.2 km;

The realignment of Sideline 16 north of Highway 7;

Cul-de-sac closures for existing Brock Road, north and south of Highway 7; and Sideline
16, south of Highway 7;

Provisions for a new southbound entranceway into the future transitway station south of
the interchange on the realigned Brock Road; and,

Implementation of the Community Value Plan.
3.1.1 Structures
The structural designs for the Interchange include the construction of three different types of
structures. The structure types include Integral Abutment Bridges, False-Abutment Bridges and
Structural Culverts. Site specific details are provided in Table 3.1. The location of the
structures is shown in Figure 2.
Table 3.1: List of Structures
Width (m)
Site #
Description
Type
Spans
Height
Substruct
ure
Superstructure
(m)
M-1
Site
2
Hwy 407 EBL over
Urfe Creek
Integral
42.0
24.9
17.8
2.2
M-2
Site
3
N-W Ramp over
Brougham Creek
Integral
24.0
10.5
9.3
4.0
M-2
Site
3
Hwy 407 WBL over
Brougham Creek
Integral
24.0
30.0
20.8
3.3
M-2
Site
3
Hwy 407 EBL over
Brougham Creek
Integral
24.0
27.5
17.8
4.0
M-2
Site
3
W-N/S Ramp over
Brougham Creek
Integral
24.0
12.3
12.05
4.0
MMM Group Limited
15
2013
Width (m)
Site #
Description
Type
Spans
Height
Substruct
ure
Superstructure
(m)
M-3a
Site
4
Hwy 407 and N-W
Ramp over Brougham
Cr
Culvert
2 x 2.4
114
N/A
1.5
M-3b
Site
4
S-E Ramp over
Brougham Cr
Culvert
3.6
71
N/A
1.5
M-4
Site
3A
Realigned Brock Road
over Brougham Cr.
Integral
32.732.732.7
32.3
27.22
10 14.0
M-5
Site
5
over Brougham Cr.
Culvert
3.6
115
N/A
1.5
M-6
Site
101
Realigned Hwy 7 over
Brougham Cr.
Culvert
3.6
43.5
N/A
1.5
M-7
Site
102
over Brougham Cr.
Culvert
2.4
49
N/A
1.2
Hwy 407/ Realigned
Brock Road U/P
False Integral
40.0 40.0
32.6
32.6
5.2
M-8
M-9
Site
7
Hwy 407/ Realigned
Hwy 7 U/P EBL
False Abutment
74.457.362.6
14.5
13.0
4.9 20.0
M-9
Site
7
Hwy 407/ Realigned
Hwy 7 U/P WBL
False Abutment
62.659.574.4
14.5
13.0
4.9 20.0
M-10
Site
7
Hwy 407 WBL over
Brougham Creek Trib.
Integral
38.0
32.5
23.5
5.5
M-10
Site
7
Hwy 407 EBL over
Brougham Creek Trib.
Integral
38.0
31.0
22.0
5.5
3.1.2 Utilities
The following utilities will be affected as a result of the Highway 407 ETR East / Brock Road
Interchange. Utility relocations will be carried out according to relocation plans and schedules
included in the contract package and will be completed by the appropriate organization as
described below:

Veridan Connections: Relocations involve the installation of taller poles to replace the
existing pole located on the east side of the Interchange, to span over the new Hwy 407.
Aerial lines are proposed along the realigned Brock Road and Hwy 7, and along Sideline
16.

Rogers Cable:
Connections
MMM Group Limited
Relocations will be completed through joint-use with Veridan
16
2013

Bell Canada: Relocations involve both underground and joint-use with Veridan
Connections where specified in the contract package.

Enbridge Gas: Relocations will be finalized prior to construction once all conflicts based
on test pit information have been resolved.
In general, all relocation plans and strategies will be completed prior to construction.
3.1.3 Staging
The Interchange is scheduled to proceed in five stages and span three construction seasons.
Traffic management measures have been incorporated into staging plans such that two lanes of
traffic, one in each direction, between Hwy 407 and Hwy 7 will be maintained during
construction. Short term lane reductions will be required to complete some components and
tasks during construction. This will involve appropriate signage and flagging to advise drivers of
changes on the road ahead. Construction of the Interchange will require a total of five (5)
detours as well as local detours for the construction of major culverts. Temporary traffic signals
will be used at the following intersections to maintain traffic flow.

Highway 407 and Brock Road

Highway 7 and Detour 1
Plans showing the construction staging and detour routes are presented in Appendix B.
3.1.4 Community Value Plan
The Community Value Plan (CVP) was developed during the 407 East EA. The CVP provides
measures to protect/enhance the local landscape, social environment and also incorporates
mitigation measures to naturalize areas of the 407 corridor and promote wildlife movement
through barrier and directional fencing. A specific plan was developed for the 407 Brock Road
interchange through this process. The CVP presented in this report has been detailed to reflect
the change in the Brock Road alignment to the west of Sideline 16 and the changes associated
with taking Highway 7 over Highway 407. The changes to the interchange design associated
with this are presented in sections 1.3.1 and 3.1.1 of this report. The components of the CVP
include woodland plantings, fencing for wildlife, edge management and bank stabilization
treatments and a proposed Regional Gateway feature.. The CVP is shown in Figure 4 and the
following is a description of each of the components that will be implemented:

Woodland Plantings: native coniferous and deciduous tree species and native
deciduous shrub species planted in the interchange loops and ramps to provide a
natural cover. Site preparation for planting will include grading (associated with
interchange) and placement of 75 mm bark mulch to provide soil moisture retention and
organic matter in the soil matrix

Edge Management: this involves measures to reduce impacts to areas of newly
created forest edge that result from clearing for the highway.
o
Edge management has been developed for the forest edge at Site 3A (Unit
C5BR-3) to address impacts to the new forest edge from the realigned Brock
Road crossing of this feature. Edge management measures include plantings of
deciduous trees in floodplain and valley slope, and removal of buckthorn within
30 m of cleared edge.
MMM Group Limited
17
2013
o
Edge management is provided for at Site 4 (Unit C5BR-2) and Site 7 (Unit
C5S16-1) in accordance with the EA commitments.
o
Edge management measures for Site 4 include shrub and tree plantings in
upland and riparian areas, and include buckthorn removal.
o
Edge management measures for Site 7 include plantings of cedar and mixed
deciduous trees and shrubs in the lower slope at cleared edge, and buckthorn
removal within 30 m of cleared edge.

Bank Stabilization: This includes installation of plantings to stabilize the newly created
and graded slopes associated with the highway. Native vegetation includes a lower tier
planting of shrubs with tree planting farther up the slope. Ground treatment will include
bark mulch.

Wildlife Fencing: Wildlife fencing will be installed to prevent wildlife from crossing the
highway on both the north and south of Site 3 and Site 7. Fencing will be aligned to
direct wildlife to pass beneath Highway 407 at these two sites. Fencing will be 2.4 m
high chain link fence with a 0.9 m high small opening mesh fence attached at the bottom
to prevent smaller animals from passing through the chain link layer. The fine mesh layer
will be buried 0.6 m below ground to prevent animals tunneling and accessing the
highway.

Regional Gateway: The gateway feature is proposed to be located within the
interchange between Hwy 407 EBL and the W-N/S Ramp. The Regional Gateway
concept is currently in development in consultation with the Region of Durham.
3.2 Environmental Issues and Commitments
3.2.1 Natural and Physical Environment
3.2.1.1 Fisheries and Aquatic Habitat
All watercourses within the project limits contribute to the Duffins Creek watershed. These
watercourses are identified as: Urfe Creek, Brougham Creek, Tributary A of Brougham Creek
and Tributary B of Brougham Creek (Figure 5)
Brougham Creek at the proposed crossings (Site 3/3a) provides coldwater habitat, and is known
to support the coldwater species Brook Trout (Salvelinus fontinalis) and Rainbow Trout
(Oncorhynchus mykiss) downstream of Sideline 16, and managed as Redside Dace
(Clinostomus elongates) recovery habitat by MNR under the provincial Endangered Species
Act. The Brougham Creek tributary at Site 7 provides coldwater habitat, and is known to
support the coldwater species Brook Trout (Salvelinus fontinalis), and managed as Redside
Dace (Clinostomus elongates) recovery habitat by MNR under the provincial Endangered
Species Act (ESA).
The Brougham Creek tributary at Sites 101/102/4/5 generally consists of ephemeral drainage
that originates from agricultural fields approximately 2 Km upstream of the interchange right of
way (ROW). Through the ROW, the drainage feature consists of a combination of poorly
defined depression/swale within agricultural fields, diffuse flow through wetland vegetation, and
braided channels with minimal bank definition.
Watercourses within the project limits that are considered to provide habitat for Redside Dace
and are regulated as Recovery or Contributing and habitat are subject to review and approvals
under the ESA.
MMM Group Limited
19
2013
DESIGN
Eight (8) structures are identified within the Interchange. These sites include two watercourses,
Brougham Creek (Site 3 and 3A) and Tributary A of Brougham Creek (Site 4 and 5).
The following table summarizes the potential temporary and permanent impacts associated with
fish and fish habitat within the project limits. Structural summary information is provided in
Table 3.1 (Section 3.1.1).
Final designs for channel realignments will be reviewed and approved by the MNR and DFO
prior to issuance of permits (ESA) or Authorizations under the Fisheries Act.
Table 3.2 provides details about site specific impacts.
Groundwater seepage areas were noted along the valley walls at Sites 3, 3A and 7.
The moderate/minor seepages identified at Sites 3 and 3A will be associated with watercourse
crossing abutments and road embankments. The significant seepage identified at Site 7 is
located under the proposed road embankment.
Excavations for channel realignments may interact with shallow groundwater levels and in some
case may impact deeper groundwater levels. .
MITIGATION
Mitigation of impacts to fish habitat is provided in the form of fish habitat creation/enhancement
for the watercrossings that support redside dace and protection of fish and aquatic habitat
during construction. These are described below.
General

Unless otherwise permitted by MNR, construction will be carried out during the
permissible period for in-water works: July 1 to September 15 annually.

For Direct/Recovery Fish habitat:
o
Fish passage will be maintained during construction and will be provided through
design elements in the crossings and channel realignments, including low flow
channels.
o
Structures are designed to avoid a permanent in-water footprint within the ROW;
and,
o
Riparian vegetation will consist of a mix of lowland meadow vegetation, shrubs
and trees, with upland species planted on the valley slopes. The tree and shrub
plantings are anticipated to assist in moderating thermal effects of the sun on the
watercourse and floodplain, and contribute energy inputs (i.e. leaf litter, woody
debris, etc.) and floodplain diversity
MMM Group Limited
20
2013
Table 3.2: Summary of Site Specific Temporary and Permanent Impacts Related to Fish and Fish Habitat
Crossing
Thermal
Regime
Site 2
Coldwater
Urfe Creek
Fish Community Present &
MNR Redside Dace Habitat
Management Designation
A new bridge crossing
Blacknose Dace
Vegetation Clearing and Removal
Placement of Fill (for road and structures)
Redside Dace Recovery Habitat
Temporary Dewatering of Work Areas and for Construction of Bridge
Foundations
Creek Chub.
Site 3
Brougham Creek
MNR records from 1994 report
the capture of Brook Trout and
Rainbow Trout at a sampling
station downstream of Sideline
16/Site 3a
Site Grading, Excavation, & Related Activities
Foundations
Reconstruction of the Stormwater Management Pond may cause:
Channel Realignment:
 Approximately 245 m being replaced with an estimated 242 m (3m). This will requires fish rescue and handling of RSD (stressful
and potential result in mortalities)
Coldwater
Brougham Creek
Coldwater
Tributary B of Brougham
Creek

Potential for reduced water clarity (increased TSS)
Potential for thermal issues as a result of the release of ambient temperature water
to coldwater streams.
Access to outlet via gravel path will potentially reduce vegetation cover.
Blacknose Dace
Creek Chub.
Placement of Fill (for road and structures) may cause:
MNR records from 1994 report
the capture of Brook Trout and
Rainbow Trout at a sampling
station downstream of Sideline
16/Site 3a
Foundations
Site 7


 < 5 m of estimated stream length will be lost at this site through channel
realignment at the crossing.
Site 3A
Permanent Impacts
Blacknose Dace
Coldwater
Temporary Impacts
Blacknose Dace, Bluntnose
Minnow, Bluntnose Minnow,
Brook Stickleback, Brook Trout,
Creek Chub, Fathead Minnow,
Mottled Sculpin, Northern
Redbelly Dace, Rainbow Trout,
Slimy Sculpin, and White
Sucker
 Approximately 107 m being replaced with an estimated 98 m (-9m).
This will requires fish rescue and handling of RSD (stressful and
potential result in mortalities)

< 10 m of estimated stream length will be lost at this site through channel
realignment at the crossing.
Foundations
Stormwater Management Pond Installation
 Approximately 130 m being replaced with an estimated 164 m
(+34m). This will requires fish rescue and handling of RSD
(stressful and potential result in mortalities)
 Increase in stream length of > 30 m, through construction of the channel
realignment at this site.
Sites 4+5
No Direct Fish Use
Coldwater
Tributary A of Brougham
Creek
MMM Group Limited
Contributes to Redside Dace
Recovery Habitat
New culvert crossings
Foundations
Stormwater Management Pond Installation
22
2013
Crossing
Thermal
Regime
Site 101
Creek
Site 102
MMM Group Limited
MNR Redside Dace Habitat
Management Designation
Recovery Habitat
No Direct Fish Use
Coldwater
Creek
Fish Community Present &
No Direct Fish Use
Coldwater
Recovery Habitat
Temporary Impacts
Permanent Impacts
Foundations
Foundations
23
2013


For Indirect/Contributing Fish habitat:
o
Maintain form and function of existing watercourses;
o
Crossing structures are sized to appropriately convey flow such that the potential
for upstream flooding is minimized. In order to minimize velocities and erosive
forces of the flow through the culverts will include appropriately sized substrate
lining;
o
Riparian vegetation will consist of a mix of lowland meadow vegetation, shrubs
and trees, with upland species planted on the valley slopes. The tree and shrub
plantings are anticipated to assist in moderating thermal effects of the sun on the
watercourse and floodplain, and contribute energy inputs (i.e. leaf litter, woody
debris, etc.) and floodplain diversity; and,
o
Provisions for fish passage are not required
Groundwater seepage areas located along valley walls will be maintained where
required, based on the results of detailed geotechnical investigations and
hydrogeological assessments. Measures to maintain the groundwater seepage within
the valleys include the installation of geotechnical drainage blankets. These will be
installed with granular subbase within the embankments to allow groundwater to be
conveyed to the valley and maintain contributions to associated watercourses.
Channel realignments

Realignments have been designed to incorporate measures conducive to Redside Dace
and provide habitat enhancements for this species, where feasible. The channel
configuration has been designed to minimize the width to depth ratio and provide a
relatively deep and narrow channel. The design includes a riffle and pool sequence that
will support various life history functions (i.e. spawning in riffles; refuge in pools) of
Redside Dace and other fish species (i.e. Brook Trout and Rainbow Trout).

Substrate will consist of a combination of stockpiled native material, and additional
material as necessary that will be appropriately sized to match existing sediment and
maintain channel stability. Pea gravel (or similar) will be incorporated into the riffles to
provide a suitable spawning medium. Due to the relatively steep side slopes of the
proposed channel, riverstone bank stabilization is required for the sections of the
channel located under the proposed Highway 407 Bridge to maintain stability in the
absence of vegetation. Interstitial spaces provided by the proposed riverstone will
however contribute a form of in-water cover (i.e. rocky material) that can be utilized by
the fish community in this watercourse. These interstitial spaces are also anticipated to
provide habitat for the aquatic stage of various terrestrial insects, that will in-turn provide
a good source of food for Redside Dace when these insects emerge from the
watercourse.

Areas located outside of the Highway 407 footprint will include a combination of native
sod mats, coir mat, and seeding treatments along with live stakes to provide a ‘softer’
form of bank stability through the majority of the proposed channel. Additional overhead
cover for fish will be provided by a combination of root wads and lunkers proposed at the
outside bends of the channel.
Riparian Restoration & Plantings

Riparian vegetation will consist of transplanted sod mats, seeding with an appropriate
riparian seed mixture and the planting of shrubs adjacent to the watercourse, with trees
MMM Group Limited
24
2013
located further back (minimum of 10 m) from the channel. The proposed planting plan is
intended to provide overhanging vegetation immediately adjacent to the watercourse
with scattered shrub plantings that will provide a source of food for Redside Dace (i.e.
terrestrial insect production).

The shrubs will also provide localized areas of shading while not overly shading the
adjacent herbaceous vegetation that overhangs the watercourse. In order to minimize
the potential for “over shading” the areas immediately adjacent to the watercourse and
changing the habitat created by the overhanging grasses, the proposed tree plantings
will be located a minimum of 10 m from the watercourse.

The tree plantings are anticipated to assist in moderating thermal effects of the sun on
the floodplain, contributing energy inputs (i.e. leaf litter, woody debris, etc.) and providing
floodplain diversity.
Redside Dace Habitat
The following mitigation measures apply to potential impacts associated with Redside Dace
Habitat:

All works within Redside Dace habitat to be completed within appropriate Redside Dace
construction window (July 1 – September 15) unless otherwise permitted by the MNR

Erosion and Sediment Control measures in place prior to construction.
Temporary Impacts:

Minimize vegetation disturbance/removal to the extent required for construction;

Re-instate vegetative cover promptly following construction;

Install site specific temporary stabilization as well as sediment and erosion control
measures as required to minimize potential for sediment release/transport to Redside
Dace habitat;

Limit equipment refueling/maintenance to areas outside of regulated Redside Dace
habitat limits
Permanent Impacts:

Surface runoff will be collected and directed to SWM facilities for quality and quantity
controls as required, prior to discharge to Redside Dace habitat;

Potential for impediment to lateral groundwater discharge to creek will be mitigated by
placement of granular embankment material and/or subdrains as required.
Dewatering Impacts:

Site specific dewatering management plans will be prepared and implemented as
required.
SWM Facilities (outlets and discharge) Impacts:

SWM facilities designed to provide a minimum ‘enhanced level’ of quality control as per
MOE guidelines and achieve water quality targets outlined in MNR’s Draft Guidance for
Development in Redside Dace Protected Habitat document;

Discharge rated and conveyance measures will be designed to minimize erosion;
MMM Group Limited
25
2013

SWM facility design will include thermal mitigation measures (i.e. bottom draw outlet,
subsurface flow conveyance, plantings, etc.);

Additional ‘treatment train’ end of pipe measures (i.e. infiltration trenches, vegetated
discharge channels, etc.) will be included in the design wherever feasible to provide
additional filtration/infiltration of SWM discharge.
Site Specific Landscape/Restoration Impacts:

Erosion and Sediment Control (ESC) measures in place during restoration works
3.2.1.2 Wildlife
The wildlife habitat and species found in the study area of the interchange are documented in
the Natural Environment (Terrestrial) Impact Assessment of the Recommended Design (Gartner
Lee 2009) and the Assessment of Design Refinements for the 407 East Brock Road
Interchange. The information presented in these documents serves as the documentation of
wildlife for this detail design study. No additional species of note have been identified during
the detail design study.
The specific wildlife values to be addressed during detail design relates to providing passage for
wildlife groups and mitigating impacts due to the required removal of barn swallow nests.
DESIGN
The watercourse valleylands provide natural corridors for wildlife movement through the
landscape. These corridors are generally oriented north-south. Highway 407 and realigned
Highway 7 will cross several of these travel corridors and realigned Brock Road will cross a
valleyland that is oriented east-west. The valleyland features are shown in Figure 5.
Wildlife Passage
The larger valleylands will be spanned by bridges and the opening beneath the bridge to
support wildlife movement was considered in developing the design. The 407 EA identified
minimum recommended heights and widths for the bridges to pass the target wildlife groups. It
also identified the openness ratio that was achieved from the design.
A description of the crossing structure and the openness ratio provided is presented in Table
3.3. There are a total of 6 crossing sites that will provide wildlife passage opportunities. For all
crossings, except for Site 5, the minimum recommended height identified in the 407 EA has
been met. Site 5 does not meet the minimum height as the culvert was revised to address
hydrology parameters. It is noted as well that this culvert did not have a target wildlife group
identified to provide this function but rather identified what was achieved through design.
MMM Group Limited
26
2013
Table 3.3: Summary of Wildlife Passage and Openness Ratios for Structures
Width, m
Site #
M-1
Description
Total
Span
Type(s)
Substructure
Superstructure
Min.
Height
(m)
Openness
Ratio
Site 2
Hwy 407 EBL over Urfe Creek
Integral
42.0
24.9
17.8
3.00
5.06
M-2
Site 3
N-W Ramp over Brougham
Creek; Hwy 407 EBL/WBL over
Brougham Creek; W-N/S Ramp
Over Brougham Creek
Integral
24.0
80.3
60.0
3.30
0.99
M-4
Site
3A
Realigned Brock Road over
Brougham Cr.
Integral
76.3
32.3
27.2
12.00
28.35
M-3a
Site 4
Hwy 407 and N-W Ramp over
Brougham Cr
Culvert
4.8
114.0
N/A
1.50
0.06
M-5
Site 5
Realigned Brock Road over
Brougham Cr.
Culvert
3.6
115.0
N/A
1.50
0.05
M9&10
Site 7
Hwy 407/Realigned Hwy 7 U/P
EBL/WBL; Hwy 407 EBL/WBL
over Brougham Creek Trib.
FalseAbutment
& Integral
38.0
92.5
71.5
5.50
2.26
MMM Group Limited
27
2013
At Site 7, Highway 7 crossing of Brougham Creek Tributary B, the watercourse is currently
enclosed in a 4.8 m (h) x 3 m (v) x 52 m (length) culvert. As per the preliminary design,
upstream of Highway 7, Highway 407 spans the tributary with a three span structure with a total
span length of 75 m.
As part of the detail design, Highway 7 over Highway 407 allows for the removal of the existing
Highway 7 culvert and replacement with a 195 m span length and height that approaches 20 m.
This is sufficient to provide passage for small and large wildlife. The 407 crossing of the
tributary is reduced to a single span of 38 m and a minimum height of 5.5 m. This achieves an
openness ratio of 2.26 which exceeds the openness ratio target of 0.6 to 1 to encourage deer
use.
Wildlife fencing is proposed for the southwest quadrant of the interchange. It includes a length
of fence that extends westerly from Brock Road to beyond Brougham Creek. Wildlife fencing is
2.4 m tall chain link fence with a 0.9 m height of small diameter mesh fence extending from the
ground surface upward and attached to the chain link fence. This is to prevent small animals
from accessing the highway. Funnel fencing will direct wildlife to pass beneath the 407 at
Brougham Creek on both the north and south sides of the highway and at Brougham Creek
tributary B crossing, also on both sides of the highway.
Barn Swallow Nesting Habitat
Field investigations carried out for the detail design identified the presence of barn swallow
nests at two crossings. Thirteen nests were located at crossing Site 2 (Urfe Creek) and five
nests were located at Site 3 Brougham Creek. At both sites, nests were located along at
various locations along the vertical plain of the girder. The girders are identified as standard
girders for 400 series highways and as such they lack a horizontal shelf for locating a nest.
IMPACT ASSESSMENT
The Site 2 structure will remain in place as it currently carries Highway 407 over the
watercourse/valleyland. A new structure will be constructed to the south of the existing
structure. The close proximity of the new construction to the existing structure and barn swallow
nests may temporarily impact existing barn swallow nests. MTO is currently in discussions with
MNR to determine the appropriate mitigation measures for this species.
The structure at Site 3 will be demolished which will result in a permanent removal of the barn
swallow nests that are currently located under the structure. The new structures that will be
constructed in its place represents a much larger area of potential nesting habitat as 3
structures will be installed (407 EBL/WBL and W-N/S ramp).
During construction, the underside of the existing structure at Urfe Creek will be bound in a
plastic wrap or equivalent to prevent birds from nesting on the structure. Similarly the Site 3
structures will be wrapped or equivalent during the migratory period so that birds are not able to
access to nest.
MITIGATION
In accordance with MNR direction for barn swallow, a nesting structure will be constructed as
temporary mitigation for the removal of these structures as nesting sites for barn swallow. The
structure will be a shelter type form with a roof and exposed underside of wood cross supports
to allow for the installation of nest cups. The proposal has been submitted to the MNR for
approval.
MMM Group Limited
28
2013
3.2.1.3 Vegetation
The vegetation communities and species composition found in the study area of the interchange
are documented in the Natural Environment (Terrestrial) Impact Assessment of the
Recommended Design (Gartner Lee 2009) and the Assessment of Design Refinements for the
407 East Brock Road Interchange. The information presented in these technical documents
serves as the documentation of vegetation for this detail design study. With a shift in the Brock
Road alignment there is a new crossing of Brougham Creek south of the interchange at Site 3A.
The vegetation at the new crossing was inventoried during this detail design study. The
communities are shown in Figure 5.
Vegetation communities documented during the EA were reviewed. Additional inventory was
carried out where there was an increase or change to the design footprint. The only change
was identified as the revised crossing location of Brock Road over Brougham Creek west of
Sideline 16 which traverses a vegetated valleyland identified as polygon C5BR-3 in the EA. .
Sensitive species including those listed under the Endangered Species Act, 2007, and
provincially rare species tracked by Natural Heritage Information Centre (NHIC) database of the
Ministry of Natural Resources (MNR) were recorded during the field investigations. Additionally
locally rare species as listed for the Toronto and Region Conservation Authority (TRCA)
watershed jurisdiction were also reviewed and recorded during the field investigations.
Vegetation polygons documented in the EA that are affected by the design are identified as:
Unit C5S16: large forest unit located south of Highway 7 and east of Sideline 16. There are
three polygons contained within the unit that may be affected by the proposed design.
C5S16-1a: this polygon is found in the large forest block that occurs immediately south of
Highway 7 and east of Sideline 16 at crossing site 7. It is represented by the ELC community
FOC2-2; Fry-Fresh White Cedar Coniferous Forest.
C5S16-1b: this polygon is found in the large forest block that occurs immediately south of
Highway 7 and east of Sideline 16 at crossing site 7. It is represented by the ELC community
SWC3-1; White Cedar Organic Coniferous Forest and FOM7-2; Fresh-Moist White Cedar
Hardwood Mixed Forest
C5S16-1c: this polygon is found in the same large forest block that occurs immediately south of
Highway 7 and east of Sideline 16 at crossing site 7. It is represented by FOD; Deciduous
Forest.
WS16-1: this unit is traversed by Highway 407 at the east limit of the study area.
represented by the ELC community SWC3-1; White Cedar Organic Coniferous Forest
It is
C5BR-1b: this unit is located on the north side of Highway 407 between existing Brock Road
and realigned Brock Road. It is represented by one polygon, SWD4-1; willow mineral
deciduous swamp type with an inclusion of CUP3-3; Scotch Pine Coniferous Plantation type.
C5BR-2: this unit is located on the north side of Highway 407 between existing Brock Road and
realigned Brock Road immediately east of unit C5BR-1b. It is represented by one polygon
FOD7; Fresh-Moist Lowland Deciduous Forest type.
C5BR-6a: this unit is located in the southwest quadrant of the interchange. It is represented by
one polygon, FOD7-2; Fresh-Moist Ash Lowland Deciduous Forest type.
C5BR-6b: this unit is located immediately upstream adjacent to C5BR-6a. It is represented by
two polygons, CUM1-1; Dry-Moist Old Field Meadow Type and MAM2-2; Reed-canary Grass
Mineral Meadow Marsh type.
MMM Group Limited
29
2013
All the vegetation communities within this study area are considered to be common in Ontario.
The revised crossing location of Brock Road over Brougham Creek west of Sideline 16 will
traverse a vegetated valleyland identified as polygon C5BR-3 in the EA. The following
vegetation resources are associated with the revised crossing location:
Fresh-Moist Lowland Deciduous Forest Ecosite (FOD7):
This vegetation community occurs on steep north slopes of the forest valley, and the floodplain
associated with the Tributary of Brougham Creek. The canopy and sub-canopy layers within
this forest were dominated by red ash (Fraxinus pennsylvanica), and included abundant sugar
maple (Acer saccharum ssp. saccharum), and occasional black walnut (Juglans nigra).
Reddish willow (Salix x rubens) were occasional in the floodplain of this forest. The shrub layer
in the understorey was dominated by common buckthorn (Rhamnus cathartica), with abundant
red ash and black walnut. The ground was varyingly dominated by herbaceous species
including tall goldenrod (Solidago altissima), spotted touch-me-not (Impatiens capensis), red
raspberry (Rubus idaeus ssp. idaeus) and moneywort (Lysimachia nummularia).
There was one butternut specimen AB-1 (17 T 652919 4864187) approximately 1 cm diameter
at breast height (dbh) which was not documented previously in the EA. This specimen was
retainable with no sign of cankers. The feasibility of transplanting this specimen to a suitable
habitat will be discussed with MNR. There were no other provincially, regionally or locally rare
plants within this forest.
Mixed Forest (FOM):
This vegetation community occurs on south slopes of the valley. The vegetation composition
was essentially similar to that described in FOD7 except for occasional eastern white pine
(Pinus strobus) in the canopy.
There were no other provincially, regionally or locally rare plants within this forest.
Hedgerows (CUW and CUT):
These units occur in the alignment of Brock Road south of the interchange. Brock Road will
travel through these units. Hedgerows were representative of cultural woodland (CUW) and
cultural thicket (CUT) vegetation similar to that recorded for the rest of the Highway 407 East
project limits.
The woodland was varyingly dominated by American basswood (Tilia
Americana), black walnut and Manitoba maple (Acer negundo), and included abundant common
buckthorn in the shrub layer. The ground cover was mostly comprised of disturbed species
including buckthorn seedlings, smooth brome (Bromus inermis ssp. inermis), tall goldenrod, and
occasional reed canary grass (Phalaris arundinacea). The cultural thicket was varyingly
dominated by staghorn sumac (Rhus typhina), common buckthorn and black walnut.
IMPACT ASSESSMENT
Construction of the interchange will result in the removal of 4.8 ha of forest. Plantings
associated with CVP will create 12.5 ha, which is deemed to off-set the loss of forest cover
removal.
The design will impact vegetation through removals and the edge effect to adjoining woodlands
from removal of a portion of the forest cover. Edge effects can include sun scald, drying of soils,
further exposure to wind and colonization by invasive non-native species. For each of the
communities described above the impacts are identified in the following:
Full removal will occur for units WS16-1, C5BR-1b, C5BR6a and C5BR-6b as a result of grading
or road alignment.
MMM Group Limited
30
2013
A small amount of removal will occur at units C5S16-1a, C5S16-1b and C5S16-1c. At this
location excavation and grading will occur at the northerly edge of these units. Organic soil
found in C5S16-1b will be removed and granular material placed at depth to provide stable soil
conditions for construction and to provide a pathway to maintain groundwater movement in this
unit that supports the cedar swamp vegetation community. The removal is small and
considered not to be significant.
At C5BR-2, 407 mainline and the N-W ramp will remove the south half of this unit. This will
create a new forest edge that will be south facing. The new forest edge will be subjected to the
edge effects that are identified above. Two butternut specimens not previously identified during
the EA were identified during the field investigations for the detail design. Based on their size (1
cm and 3 cm dbh) these specimens can be transplanted. The feasibility of transplanting this
specimen to a suitable habitat is being discussed with MNR.
At C5BR-3, realigned Brock Road will remove vegetation that covers the width of the ROW.
This will result in the creation of a new east and west facing forest edge. Based on the location
of the crossing, the vegetation community that extends farther to the west associated with the
valleyland of Brougham Creek tributary is not expected to be affected any further than the edge
effects in place to the north and south. The portion of the unit that occurs to the east of the
crossing will be impacted to a greater extent as this area will be small in size, its westerly
exposure and proximity to Brock Road. A single butternut specimen was located on the south
floodplain of the crossing. The specimen has a dbh of 1 cm which allows for it to be considered
for transplanting to a suitable location.
MITIGATION MEASURES
Plantings to occur within the 407E Brock Road interchange limits are related to the Community
Value Plan and are discussed in section 3.1.4 in this report. In total, 12.5 hectares of plantings
will be completed as part of the construction of this interchange. It is noted that with the design
change (Highway 7 over Highway 407), the amount of vegetation removed at this crossing is
reduced from 0.38 ha to 0.16 ha.
For those vegetation units where vegetation removal will create a new forest edge, an Edge
Management Plan has been prepared to address potential impacts. Specific edge management
measures for Site 3A will include plantings of trees and shrubs within the newly created forest
edge and invasive species management (common buckthorn) using herbicide application by a
licensed Pesticide applicator within 30 m from the disturbed forest edge. Plantings will include
native species similar to that observed in the adjacent study area and especially those species
which are considered to be pioneer species and shade intolerant, and these will include
deciduous shrubs and trees in the upland valley and floodplain of the newly created edge.
Edge management measures identify that planting of tree specimens occur within 5 m of the
newly created forest edge, and shrubs plantings are within approximately 5-10 m of the
proposed edge. Excavated topsoil should be stored and then spread within the newly created
edge and the associated plantings, grading within areas where edges are newly created shall
be minimum of 3 m away from the drip-line of the trees within the undisturbed forest, compacted
soils adjacent to the undisturbed forest edge will be scarified prior to planting, existing drainage
patterns adjacent to the new forest edge shall be maintained wherever possible, and the
contractor shall monitor the survival of the proposed plantings for minimum 2 years following
planting.
Regionally rare plants have been identified to occur in the vegetation polygons that are affected
by the proposed works. Where feasible, opportunity will be provided to agencies such as the
MMM Group Limited
31
2013
local Conservation Authorities and municipalities to salvage the plants prior to clearing and
grading.
Butternut: Butternuts found within the 407 Brock Road Interchange during the EA were
documented and their removal has been accounted for in the MNR permit AU-C-002-11. A
condition of the permit noted that where feasible, retainable butternuts are to be transplanted. It
is proposed that five (5) butternuts, based on their size and accessibility be transplanted. It has
been recommended that the butternut specimens be transplanted within the same valleyland in
which they occur but well beyond the construction footprint. Transplanting is proposed to occur
during the early spring period prior to clearing and grading.
Information on the butternuts including their location and proposal to transplant has been
submitted to the MNR.
3.2.1.4 Drainage
Within the project limits there are four watercourses draining generally from north to south as
part of the Duffins Creek Watershed. These watercourses are shown in Figure 2 and include
(west to east): Urfe Creek (Site 2), Brougham Creek (Site 3), Brougham Creek Tributary A (Site
4), and Brougham Creek Tributary B (Site 7). Duffins Creek originates on the Oak Ridges
Moraine and outlets to Lake Ontario through the Duffins Creek Marsh, crossing several
municipal jurisdictions: City of Pickering, Town of Ajax, City of Markham, Town of WhitchurchStouffville, and the Township of Uxbridge. Duffins Creek drains an area of 283 km2 and crosses
four physiographic regions: Oaks Ridges Moraine, South Slope (Halton Till Plain), Lake Iroquois
Shoreline and Lake Iroquois Plain. The upper reaches of Duffins Creek include large areas of
forest, meadow and wetlands that provide high quality habitats. The middle reaches (within the
407 Study Area) are rural and dominated by agricultural land use. Along the Highway 7 corridor
are the hamlets of Brougham and Greenwood.
In general, runoff from the existing interchange and surrounding roadways discharge to the four
watercourses. There is an existing stormwater facility on the south side of Highway 407 within
the ROW and west of Brougham Creek. This pond was constructed as part of the original
Highway 407 stormwater management plan. Besides this pond, there are no other documented
stormwater management facilities within the vicinity of the project limits. The total existing
impervious cover is approximately 20 ha considering all upstream drainage to the interchange—
7 hectares are allocated within the immediate project limits for the proposed interchange.
DESIGN
Stormwater management is designed to provide Enhanced Protection Level (Level 1) treatment
with quantity and erosion control. This will be achieved through the use of storage (wet ponds)
and vegetative (filter strips, grassed swales and enhanced grassed swales). Treated
stormwater runoff from the Interchange, as well as drainage from external areas in the vicinity of
the Interchange, will discharge to Brougham Creek and its tributaries.
Runoff from the highway will be conveyed to the stormwater management facilities in flatbottomed grassed swales (Figure 2; Table 3.4). Conveyance in storm sewers and pipes, which
does not provide the opportunity for infiltration and evapotranspiration, is limited to areas where
topography and safety considerations preclude the use of open channels. With respect to the
ponds, effluent will be discharged directly or indirectly via subsurface drains to cooling trenches
with plunge pools and wetland features to address thermal impacts and provide final polishing of
the flows before being discharged to the receiving watercourse.
MMM Group Limited
32
2013
Table 3.4: Summary of Storage Stormwater Management Ponds
Drainage
Area
(ha)
Impervious
Area
Treated
(ha)
Plan
Area
(ha)
Permanent
Pool
Elevation
(m)
Pond
03W
23
4.6
1.5
186.5
Brougham Creek (Site 3)
Pond
07S
21
8.5
1.8
168.0
Tributary A, Brougham Creek
(Site 5)
Pond
07E
8
2.8
1.2
166.0
Tributary B, Brougham Creek
(Site 7)
Pond ID
Receiving
Watercourse
Pond 03W
This pond is the most westerly pond within the limits of the Interchange. It is generally the same
location proposed during the EA, but has been shifted westerly to align with the existing 407
ETR pond footprint (constructed in the year 2000) in an attempt to salvage the existing outfall
channel discharging to Brougham Creek. The outfall channel has sufficient capacity and
includes a stone sub-layer for thermal mitigation
Pond 07S
Pond 07S is located in the southeast quadrant of the Interchange. It was not identified during
the EA but was introduced during the detail design phase to control runoff primarily from the 407
East mainline, which was originally planned to be routed to a pond in the northeast quadrant.
However, it is not feasible to route the 407 East drainage as indicated in the EA based on
topographic data and groundwater conditions evaluated during the detail design phase.
It should be noted that the original intent was to retain Pond 07W as shown in the EA, while
introducing the new Pond 07S. Therefore, Pond 07W was elevated above the groundwater
level and its footprint reduced to reflect the smaller upstream treatment area. However, a further
complication with respect to the pond outlet, which required a 9 m deep drop structure to
discharge to the receiving watercourse, led to the consensus among the design team and
regulatory agencies (MNR and TRCA) to eliminate the pond and provide alternative stormwater
control measures to meet the project objectives.
Pond 07S will discharge to Brougham Creek Tributary “A” located southwest of the pond. This
was determined on the basis that there is no direct fish habitat in the watercourse. The pond
discharge will be conveyed to the watercourse in an open channel. An outfall channel will
convey the flow down the valley slope to the receiving watercourse. The channel will be lined
with riprap and an online plunge pool/wetland pocket will be created just upstream of the
discharge point to the creek to dissipate the flow energy and create diffused flow onto the
floodplain.
Pond 07E
Pond 07E is located east of the interchange and is in the precise plan location that was
determined as part of the EA. The pond has been raised above the EA elevation by a metre to
avoid groundwater interception and to minimize the potential for extensive dewatering during
construction. The pond will include a permanent pool depth of 2 m within the main cell and 2.5
m in the forebay. Discharge from the pond will be directed to Brougham Creek Tributary B (Site
MMM Group Limited
33
2013
7) via an outlet pipe installed approximately 2 to 3 m below grade across the table lands and
terminate at an open channel at the top of the slope. An outfall channel will convey the flow
down the valley slope to the receiving watercourse. The channel will be lined with riprap and an
online plunge pool/wetland pocket will be created just upstream of the discharge point to the
creek to reduce the flow energy and create diffused flow onto the floodplain.
MITIGATION
Recognizing the importance of reducing potential thermal impacts from stormwater runoff on
receiving cold-water streams, a number of preventative and thermal mitigation measures have
been integrated into the stormwater management plan. The measures used are intended to
optimize, to the extent possible, aspects of the conveyance system and pond facilities that
promote shading and cooling of the stormwater, and reduce thermal transmission.
The following measures were specified for the project:
1. Pond Configuration/Orientation – the use of a 4:1 ratio to maximize the length-towidth ratio to prevent the occurrence of large open areas of water which cannot be
shaded by riparian vegetation. Ponds were also oriented in the east-west direction
feasible to minimize the exposure and duration of solar radiation on the permanent
pool.
2. Riparian Planting Strategy – Provide appropriate landscaping around the ponds, in
conjunction with the higher length-to-width ratio will maximize shading and minimize
temperature increases during inter-event periods.
3. Bottom-draw Outlet – Provide a reverse sloped outlet pipe from the permanent pool to
draw the cooler water from as close to the pond bottom as practicable.
4. Outlet Cooling Trenches – Route the pond discharge through a subsurface trench filled
with clear stone. The length of the trench is maximized to increase the opportunity for
heat transfer. The trench will be wrapped with non-woven filter fabric to prevent the
native material from blocking the pore space in the stone/rock. Stones will be
relatively small (13 mm - 25 mm) since smaller stones will have a greater total
surface area available for heat transfer.
Vegetative SWMPs specified for the project include the following:

Grassed swales are well suited for treating highway runoff because they are linear
practices. These swales will be part of the treatment train approach and will receive
water that would have been filtered through vegetation along the road embankment.
They are recommended as Low Impact Development approach, since they reduce the
overall runoff volumes conveyed to the receiving watercourse.

With respect to thermal mitigation, grassed swales are recognized as a good treatment
option within watersheds that drain to cold water streams, since they do not pond water
for an extended period and often induce infiltration. As a result, standing water will not
typically be subjected to solar warming.
Enhanced Grassed Swales are incorporated into the design and include the following:

Enhanced grassed swales will be used in areas within the Interchange where highway
runoff cannot be directed to one of the three proposed stormwater management ponds—
due to topography, location relative to ponds or if the drainage area is relatively small.

For the enhanced grassed swale, the native soil will be replaced with a 300 mm thick
layer of sand/soil mix to satisfy minimum permeability requirements. An underdrain
MMM Group Limited
34
2013
system comprising of a gravel layer will be installed at the bottom of the soil bed.
Therefore, stormwater treated in the soil bed infiltrates and is detained in the gravel
underdrain to infiltrate (a minimum height of 1 m above the ground water level will be
maintained). Excess flow is then conveyed downstream to the receiving watercourse.
3.2.1.5 Groundwater
The physiographic and geological conditions support the groundwater resources found in the
area of the interchange. The interchange is situated in the physiographic region known as the
South Slope, which lies between the Oak Ridges Moraine and the Iroquois Plain and typically is
characterized by overburden deposits consisting of sand and silt, underlying glacial till sheets.
Lacustrine clay deposited by Lake Iroquois, is often encountered between or overlying the till
sheets. The surficial geology identifies that the area is covered by sandy silt to silty sand till.
Groundwater conditions were investigated for all watercourse crossings where bridges or
culverts and sites of excavation that include stormwater management ponds are to be
constructed. Borehole testing was carried out for each watercourse crossing (culvert/bridge
construction) and the site of proposed stormwater ponds. The description of groundwater
conditions is based on a combination of results of borehole and monitoring well data and
background information from the 407 EA. This information is presented in Table 3.5.
Generally, the area of the interchange appears to have high groundwater levels. This is due to
the variable depth of permeable to semi-permeable sandy silt to silty sand till overlying the less
permeable till layer at lower depths. In the area of the 407 crossing of Brougham Creek (Site 3)
artesian conditions are identified. Groundwater level was at, to slightly below, the bed elevation
of the Creek. This accounts for the coolwater temperatures found in the Creek that support
redside dace. The drilled well at the farm property in the southwest quadrant of the interchange,
within the vicinity of Brougham Creek is founded in an artesian condition.
In the southeast quadrant of the interchange, groundwater discharge was evident at crossing
site 7. Springs were identified all along the west valley wall. The site contains a high water
table with artesian conditions. And in the area of stormwater pond 07S, just to the west of Site
7, groundwater levels were shallow (3-4.3 m below ground).
MMM Group Limited
35
2013
Table 3.5: Groundwater Conditions at Watercourse Crossings and Sites for Stormwater Ponds
Location
Structure
M-1
Description
Site
Site 2
Urfe Creek Overpass
(407)
Hydrogeologic Interpretation
Soils
Sandy Fill (W side) or Clayey
Silt over Silt Till (E side) at
surface to approx. 193 masl
Sand which is found from
about 193 to about 187-189
masl, overlying a Sand/Silt
Till.
Foundations
Water Levels
Footing Elevation
189.8-190.0 masl (late Nov 2012)
(roughly same as creek channel)
191.6/190.7
190.6 masl (April 2008)
A saturated Sand and Gravel
deposits is logged below
about 184-186 masl
M-2
Site 3
Brougham Creek
Overpass
(407)
Sand/Silt Till at 178-180 masl
Sand/Gravel below the Till
182.5 masl (creek channel ~ 182 185 masl)
Artesian water levels reported
from 182.7-183.7
masl
Dewatering Potential
Anticipated to be
minimal to none as
abutment bases
currently above water
table and within sand
deposits
As work will be restricted to July - Sept
window, SWLs should be reduced from spring
highs and dewatering is unlikely
Potentially High
Artesian conditions reported. Groundwater at
MW from the EA measured at approx.
proposed footing depth. Till and sand/gravels
so these more pervious units could be
encountered at excavations
2 culverts, 1.2 m
deep aprons
M-3a / M-3b
M-4
M-5
Site 4
Site 3A
Site 5
MMM Group Limited
Brougham Creek Trib
Culvert (407)
Brougham Creek Bridge
(Brock Road )
Brougham Creek Trib
Culvert (Brock Road South)
Surficial veneer of Silty Sand
underlain by
Silt/Sand till to at least 174,
178 and 180 masl
Sand/Silt Till from surface
(table lands) with sand seams
to ~ 160-164 masl potential
sand layer at 159-160 masl
then mix of Silt Till, Clayey Silt
to deeper Sand deposit at ~
151 masl
Sandy Silt at surface (~ 1.5 m
bgs) then
Sand/Silt Till below to at least
165 masl
177.3 to 179.9 masl at south end
of S culvert
Water levels on table lands ~168
masl (at shallow wells)
SWLs of 159.9 masl at deeper
monitoring wells creek elevation
~162 masl
174.7 masl at west end of culvert
SWL <= 165.3 masl at east
36
N Culv, 181.8 179.2 masl
Anticipated to be low
S Culv, 176.9 175.4 masl
(includes 1.2 m
aprons at ends)
Abutments - fill
above existing
grade
low to moderate
potential
Piers at 158.2/158.6
167.9 to 165.3 masl
(W - E)
Environmental Issues/Construction
Mitigation
low to moderate
potential
SWL at South End about 2 to 5 m above
excavation base (in Till), water levels in area
at/between the two culverts anticipated to be
close to grade
Potential for minor dewatering in Tills at the
piers, to moderate if sand deposits are
present in excavated area.
Consider construction from east to west,
cutting progressively westward - allow for
gravity drainage of water entering through Till
- this water would need treatment before final
discharge to watercourse (indirect RSD
habitat-becoming direct downstream)
2013
Location
Structure
Description
Site
M-6
Site
101
Brougham Creek Trib
Culvert (Highway 7)
M-7
Site
102
Brougham Creek Trib
Culvert (Brock Road North)
Soils
Predominantly sandy soils
from surface that look to
extend to ~ 183-185 masl
then Till or Silt, some clay to
~178-182 then a deeper
Sand
0.7 - 2.2 m Sand/Silt at
surface
Sand/Silt Till to 5.5 mbgs
Fill, or Clayey Silt over Silt
Sand Till
Bridge
M-8
M-9
(Brock Road over 407)
Site 7
Bridge
(Highway 7)
Seems of Sand/Gravel (176180 masl and 169-175 masl)
may be found throughout the
site
Generally Sands at surface,
underlain (intermittently) by
Sand/Silt Till, then
Sand/Gravel to 150-160 masl
(varies)
Generally Sands at surface,
underlain (intermittently) by
M-10
Site 7
Brougham Creek Trib
Overpass
(407)
Sand/Silt Till, then
Sand/Gravel to 150-160 masl
(varies)
Thick deposit of fill along
valley slope on east side is
also noted.
Foundations
Water Levels
~ 182.5 - 185.1 masl (Aug-Dec
2012)
SWL at 192.5 and 189.9 masl
(Jan/Feb 2008)
BHs were dry on completion
anticipate SWLs high in spring
and decline during summer
Footing Elevation
189.7 - 189.3 masl
(includes 1.2 m
aprons at ends)
Approx. 201 to 199
masl
179.6, 180.5 masl water levels on
completion at two BH's drilled at
centre pier were 4.1 and 4.9
mbgs (these are not static levels
but as logs show Till, water in
holes this quick suggests missed
sands somewhere)
Abutments planned within fill
above existing
grade
Springs along west valley wall
High water table
West side water levels decline
from about 169 masl (W
Abutment) to 167.5-168.5 masl
(W Piers) to 164.1 masl (E Pier, S
bridge) to 159.5 masl (piezometer
in creek bed)
W Abutment - 169.3
masl
Pier foundations
below interpreted
groundwater level
W Piers - 166.4
masl
SWMP at west end of
alignment
Sand/Silt Till to 180.9 and min
177.8 masl
Contaminant migration from former gas
station to south-southwest is not anticipated
but shall be considered, though construction
work is above water table
low potential
Low potential as construction would be mainly
in Till. Sand/Silt noted at surface may be
saturated in early spring and require
dewatering. Likely drier in summer months
low potential
Should varied channel
deposits (sand/gravel)
be encountered in pier
excavation then
dewatering potential
becomes high
Dewatering requirements will range based on
intercepting sand/gravel seams
High potential
Multiple springs on west side. Seepage
needs to be addressed for construction
access and long-term stability of
embankments - Design mitigation is providing
valley fill with permeable sub-base to maintain
groundwater flow conditions where seepage is
encountered.
Moderate to High
Potential
Multiple springs on west side, lesser
springs/seeps on valley floor on east side of
creek. Seepage needs to be addressed for
construction access and long-term stability of
embankments. Installation of valley fill with
permeable sub-base to maintain groundwater
flow conditions where seepage is
encountered.
Moderate potential due
to uncertainty about
geology and
groundwater at new
pond alignment
Uncertainty of stratigraphy and higher SWL at
monitors found within future pond envelope.
407-ETR could not provide information about
the 3 MWs at their existing SWMP.
Geotechnical engineer returned to site in midDec to drill boreholes.
Clay liner will be specified
E Abutment - 161.8
masl
Springs all along west valley wall
High water table, artesian
conditions encountered at
boreholes in valley at east side, in
area of WBL structure. Artesian
condition is in a confined
sand/gravel deposit at ~ 6m
below grade, separated from
surficial granular deposits by a
sheet of Silt/Sand Till
186 masl to about 184 masl to S
of pond
and Gravel from 180.9- 177.2
masl
MMM Group Limited
Mitigation
Anticipated to be none,
to low, unless SWLs rise
significantly during
spring conditions, then
high because of sandy
soils
E Piers - 161.0 masl
Abutments planned within fill
above ex. Grade
Armorstone walls
will be founded just
below grade
Clayey/Sandy Silt veneer
(0.7-2.0 mbgs)
Pond 03W
37
184.5 masl
2013
Location
Structure
Site
Pond 07S
Description
SWMP East of Sideline
16
Pond 07E
Ramp +
Highway Cut
East of Pond
7W
Highway 407, and partial
ramps west of crest of
slope for Tributary to
Brougham Creek, and
extending west to Brock
Road Bridge
MMM Group Limited
Mitigation
Water Levels
Clayey/Sand Silt at surface (to
3 - 4.3 mbgs)
Pond will be constructed in the
upper sands, some parts below
water table. SWL in pond
envelope ranges from about 163
masl at MW to 166 masl (inferred
as soil at BH P7S-02 was
reported wet at 166 masl)
166 masl
Moderate to High
Potential
Clay Liner required
Sand some silt from surface
to base of both BHs (approx.
158 masl), base of sand not
reached at boreholes
159.66 masl at MW (P7E-02) but
soils reported as wet at BH P7E01 at ~ 164 masl
164 masl
Moderate to High
Potential
Clay Liner required
Till at surface (occasionally
sand over Till) overlying a
sand/gravel deposit
Varies - declines from west to
east, proposed ditches a
maximum of about 2 m below ex.
water table, and road sub-grades
a maximum of about 1.3 m below
ex. Water table in vicinity of
Sideline 16
Low to moderate
potential, gravity
drainage possible
Ditches and granular subgrade for road works
may intercept shallow water table. Measures
to address this can include sub drains, stone,
cooling trenches at ditch bottoms for
groundwater inflows.
Sand to ~ 160 - 162 masl
Sand/Silt Till to 157-157.5
masl
38
Footing Elevation
Soils
Sand below Till
SWMP on Dutchmaster
to east of Highway 7/407
cross-over
Foundations
varies
2013
IMPACT ASSESSMENT
The potential impacts to groundwater resources include the effect of dewatering on
watercourses and wetlands that are supported by groundwater conditions and the alteration of
groundwater flow paths from excavation and placement of fill with different soil characteristics.
The effect of dewatering on vegetation and fish habitat is presented Section 3.2.1.1and 3.2.1.3,
respectively.
Site 7
At this site, the organic soil will be removed and a layer of embankment granular fill will be put in
place so that the bridge foundation can be founded in the granular fill. Impacts to groundwater
will occur during excavation of the organics and placement of the granular fill. To provide a
stable, dry working site dewatering will be required. The design of the granular fill will be such
that groundwater will follow the pre-construction gradient but the flow pattern may change
slightly. Groundwater inputs to the watercourse in support of creating cool water conditions for
fish habitat will be maintained.
Excavation will also occur at the sites of the stormwater ponds. Due to the depths of the
permanent pond required to mitigate thermal effects to downstream receivers, excavation is
identified to extend into the groundwater zone. For each pond a clay liner will be installed to
prevent groundwater intrusion into the pond. Groundwater flow pattern will be altered slightly in
the area of the pond only when seasonal levels are high. During the remainder of the year it is
interpreted that flow path will not be affected. Unlike the west side of the valleyland that has
extensive seepage, dewatering on the east will not affect seepage in the same manner but will
possibly result in a localized effect to direct discharge of groundwater to the creek. This is
expected to occur over a short length of the stream which is not a significant impact.
Pond 03W and Pond 07S will also require dewatering during construction. As a result of
dewatering requirements, a Permit to Take Water will be required from the Ministry of the
Environment.
MITIGATION
Mitigation to reduce the effects on groundwater inputs to the watercourse and swamp forest
found in the valleyland at Site 7 is provided primarily through the design of the granular fill to be
placed in the valleyland. As discussed in the impact assessment section above, with this
material in place it is identified that the groundwater flow pattern and volumes will remain the
same as the pre-construction condition.
3.2.1.6 Erosion and Sediment Control
Areas within the limits of the project that are considered susceptible to erosion or sediment
issues, requiring site specific erosion and sediment control measures (ESC) include the
following:
1. Watercourses
a. Species sensitivity / intolerance to changes in water quality that may occur as a
result of sediments entering the watercourse
2. Valley lands and floodplains
3. SWM Facility outlets and discharge areas associated with regulated habitat for sensitive
species
4. Landscaping and site restoration works
MMM Group Limited
39
2013
DESIGN
The detail design provides site specific details related to the implementation and use of ESC
measures to protect sensitive features within the project limit. Works with the potential to
directly affect environmental features include stream realignments and vegetation removal
within the ROW.
A construction staging and erosion control plan will be prepared to specify site specific erosion
and sediment control requirements.
MITIGATION
The following mitigation measures will be implemented during construction to minimize the
transport of sediments from disturbed areas during construction as well as provide stabilization
during post-construction conditions:

All ESC measures shall be installed prior to construction and are to be left in place until
the site is fully restored and stabilized including final ditching

Blast mats (or similar weight dissipation measure) may be required to minimize rutting
and destabilization of valley and floodplain during construction and will be used at the
discretion of the contractor

Water accumulation behind sediment control shall be pumped through filtration control
measures as shown in the contract package

Installation of silt fencing as per the contract package to prevent sediment from bridge,
bridge approaches and road works from entering watercourses and other sensitive
environmental features.

Use of dedicated site access roads to minimize areas disturbed by equipment and
vehicles during construction.

Established staging/stockpile areas.

Restoration of all access routes.

Construction staging to allow stream realignment and ditching works to be completed
off-line and in the dry.

Use of straw bale barriers, filter bags and energy dissipation devices to reduce impacts
from erosion and sediment transport during construction.

Design elements including grade control measures in channel designs to minimize
channel erosion within realigned channels.

Construction phasing will be scheduled to minimize the extent and period to which
disturbed soils are exposed to weathering. As such, all disturbed areas will be stabilized
as quickly as possible. Stabilization of disturbed areas may be accomplished by
sodding, seeding, mulching, hydroseeding and planting. Temporary measures may
employ the use of biodegradable erosion control blankets.
MMM Group Limited
40
2013
3.2.2 Cultural Heritage Environment
Archaeological Resources
There are several archaeological resources identified within and adjacent to the study area.
These include the Mr. Ludger Gros-Louis site, Peter Webb 1 site and Salgo Site.
The Mr. Ludger Gros-Louis site (formerly known as the Miindaamiin site (AIGs-302)), which is
located within the vicinity of Sideline 16 represents an ancestral Huron-Wendat village site.
Brock Road has been realigned to avoid this previously protected area at Sideline 16.
A site protection buffer of the Peter Webb 1 Site (A1Gs-78) was located within the footprint of
the Interchange. It is located within close proximity to the Interchange ramp. Stage 3
archaeological assessment undertaken in 2011 identified two possible cultural features and two
possible post molds in the soil subsurface.
The Salgo site is identified as an Archaic period Aboriginal campsite (AIGs-27). It is one of
three pre-contact Aboriginal sites (AIGs-27, AIGs-177 and AIGs-179) documented to occur
within the footprint of the proposed transportation corridor for Section 1 of the Highway 407
Extension (Brock Road to Kinsale Road).
MTO is also completing Stage 4 archaeological surveys for a site known as WP-21, which is
associated with the nearby registered and previously excavated Salgo Site (AlGs-27).
All outstanding archaeological requirements will be completed in 2013.
IMPACT ASSESSMENT
Construction access to carry out works for realignment of Brougham Creek Tributary ‘A’ will
occur on the north side of the watercourse in vicinity of Sideline 16. The access crosses over
the watercourse to the south as it proceeds westerly and moves away from the buffer limit to the
archaeology resource.
A portion of the Mr. Ludger Gros-Louis site occurs immediately on the west side of Sideline 16.
A buffer has been placed around the archaeological resources to protect it from impact.
MITIGATION
Mitigation measures included in the 407 EA area sufficient to address the archaeology issues in
the vicinity of the Interchange.
Additional site specific mitigation measures include the following:

No work, vehicle access or disturbance within the limits of the Mr. Ludger Gros-Louis
site or within the limits of a buffer associated with the Mr. Ludger Gros-Louis site. A farm
fence will be installed around the perimeter of the buffer to delineate the feature and
protect it from encroachment during construction

Avoid impacting the Peter Webb 1 Site by affording a 20 m buffer to the site; or, if
avoidance is not possible, Stage 4 excavations will be necessary to mitigate the impacts
to the site. A farm fence will be installed around the perimeter of the buffer to delineate
the feature and protect it from encroachment during construction.

In the event that deeply buried archaeological remains are encountered during
construction, the office of the Regulatory & Operations Group, Ministry of Culture (807475-1632) shall be contacted immediately.
MMM Group Limited
41
2013

In the event that human remains are encountered both the Ministry of Culture (807-4751632) and the Registrar or Deputy Registrar of the Cemeteries Regulation Unit of the
Ministry of Consumer and Business Services (416-326-8404) shall be contacted
immediately.
Built Heritage and Cultural Landscapes
One built heritage features occurs in the study area. This is identified as the farm property
located at 3500 Sideline 16. A Cultural Heritage Evaluation Report (CHER) and heritage
documentation were prepared for the property.
DESIGN
The buildings on the property will be removed to accommodate the Interchange.
MITIGATION
Documentation of the property in the CHER provides the mitigation to address the removal of
this feature. The opportunity to re-use materials from the buildings was investigated. It was
identified that the stone found in the barn foundation may have an opportunity for use as part of
the Gateway feature in the CVP. The investigation revealed that the stone was of variable size
and colour and therefore did not offer opportunity to be used in the façade of the Gateway or for
other structural uses such as a retaining wall to support other aesthetic structures.
3.2.3 Socio-Economic Environment
The 407 East EA Report and Socio-Economic Impact Assessment of the Recommended Design
(2009) described a number of impacts to socio-economic features with Section 1 (Brock Road to
Kinsale Road), including: displacement of residences and/or businesses, and property impacts
(severance, alteration of access and/or septic/well systems, or encroachment).
The interchange will be constructed within Agricultural lands classified as Class 1, 3 and 7
(Exhibit 8.179, 407EA), based on the soils. Class 1 has no significant limitations in use for
crops (level, deep, well to imperfectly drained and have good nutrient and water holding
capacity) while Class 7 has no capability for arable culture or permanent pasture (marsh,
rockland and steep slopes).
3.2.3.1 Property Requirements and Access
Eight (8) properties will be affected by the construction of the Interchange. Potential impacts to
these properties include: parcel severance; size reduction; the displacement of a residence;
and, the loss of the recreational facility (baseball diamonds) at Don Beer Memorial Park.
Mitigation
The following are recommended measures to mitigate for impacts to properties and access
within the Interchange ROW.

Maintenance or relocation of access at applicable locations; and

Relocation of Don Beer Memorial park ball diamonds to an alternate site by the City of
Pickering.

Potential for screening and landscaping on nursery lands to minimize disturbance to this
local business was recommended in the EA; however, vegetative screening is not
feasible due to design changes in the road profile for the Highway 7/Highway 407
MMM Group Limited
42
2013
underpass and 2:1 embankment slopes at this location, plus tree plantings setback
requirements.
3.2.3.2 Air Quality
An air quality assessment was carried out to assess impacts from selected contaminants
resulting from vehicular traffic from the proposed interchange. Potential impacts were assessed
by predicting contaminant concentrations at sensitive land uses adjacent to the roadway. The
contaminants of interest from motor vehicles have been determined from a number of agencies
including the U.S. Environmental Protection Agency, Ontario Ministry of the Environment,
Environment Canada, Health Canada and the Ministry of Transportation. These contaminants
are emitted due to fuel combustion, brake wear, tire wear, breakdown of dust on the roadway,
fuel leaks, evaporation and permeation, and refueling leaks and spills. The contaminants of
interest are nitrogen dioxide (NO2), carbon monoxide (CO), fine particulate matter (PM 2.5 –
(less than 2.5 microns in diameter)), coarse particulate matter (PM10 – (less than 10 microns in
diameter)), total suspended particulate matter (TSP – (less than 44 microns in diameter)) and
the volatile organic compounds acetaldehyde, acrolein, benzene, 1,3- butadiene and
formaldehyde. From a review of ambient air quality conditions, all contaminants were below
their respective MOE criteria with the exception of PM10, TSP, acrolein and benzene.
IMPACT ASSESSMENT
For the assessment, 24 receptors were selected to represent the worst-case impacts
surrounding the project area. These were drawn from sensitive receptors that include health
care facilities, senior citizens residences or long-term care facilities, child care facilities,
educational facilities, places of worship and residential dwellings. The majority of the receptors
were located in the Village of Brougham in the northwest quadrant of the proposed interchange.
The results of the modeling assessment identified that the maximum combined (ambient and
projected) concentrations of the contaminants of interest were well below their respective MOE
guidelines or Canada Wide Standards with the exception of PM10 and TSP. Frequency analysis
determined that the project did not exceed the PM10 guidelines for any additional days over the 5
year period, while the project exceeded the TSP guideline for 3 additional days over the 5 year
period, which equates for <1% of the time. Based on these results the potential for chronic
health concerns would be low.
MITIGATION
Due to the fact that only 3 additional days above the guideline for TSP are predicted over a 5
year period, mitigation measures are not required. However, vegetation related benefits to air
quality are included as part of the implementation of the Community Value Plan, as described in
Section 3.1.4.
3.2.3.3 Management of Excess Material and Disposal of Waste
A Phase II Environmental Site Assessment was carried out on Transport Canada Lands
between Brock Road and Sideline 16 (Subject Property). The Subject Property includes
approximately 12 ha (30 acres) of land located within the 407 East extension ROW. The
property is currently owned by the MTO and includes Don Beer Memorial Park, a vacant lot and
agricultural lands. Tributary ‘A’ (Spring Creek) flows southerly through this property.
MMM Group Limited
43
2013
DESIGN
An area that contains metal debris and, metal and inorganic-impacted soil fill material is
identified in close proximity to the E-N/S ramp on its north side. Prior to construction the area of
impacted soil material will be removed.
There are no anticipated impacts to any potentially contaminated areas. Groundwater
investigations north of Hwy 7 suggest that although groundwater is flowing northeasterly into the
ROW, no evidence of contamination was noted and therefore, no impacts are expected during
excavations for realignment of Hwy 7 in this area.
Watercourse crossings at Site 101 and 102 will occur within this property; however, there are no
impacts anticipated to occur during construction of these two crossings.
MITIGATION

If contaminated fill material is encountered, it will not remain within the ROW.

Surficial waste and/or recyclable material identified at the site should not remain within
the ROW, and should be removed and properly managed off-site for reuse, recycling or
disposal.

Fill that contains or is mixed with waste or recyclable materials should not remain within
the ROW. Where possible, segregation of waste and recyclable materials should be
removed and properly managed off-site. Once waste has been separated and removed,
remaining uncontaminated fill materials may remain within the ROW unless there are
outstanding environmental concerns. Contaminated fill material is not recommended for
re-use onsite or offsite and should be removed and managed as non-hazardous waste in
accordance with applicable regulations.
4 Summary of Environmental Concerns and Commitments
The following table (Table 6.1) identifies the environmental issues, concerns and potential effects
resulting from the construction of the Highway 407 East / Brock Road interchange and outlines
the mitigation measures, protection or monitoring requirements to be undertaken during
construction.
4.1 Endangered Species Act Permit Applications
Five species at risk were noted to occur within the 407 East Transportation Corridor: Bobolink,
Eastern Meadowlark, Barn Swallow, Butternut and Redside Dace. Permits under Section
17(2)(c) of the Ontario Endangered Species Act have been received for Bobolink and Eastern
Meadowlark, Barn Swallow and Butternut for the 407 East Corridor. As they relate to the
Highway 407 / Brock Road interchange, the requirements of the permits are generally described
as follows:
Butternut:
The ESA permit for butternut identified the number of butternut and companion tree species to
be planted at alternative sites within the corridor based on the number of butternut specimens
impacted by the 407 East project. Some butternut specimens occur within the 407 Brock Road
interchange that have been accounted for in the determination of specimens impacted for the
permit.
MMM Group Limited
44
2013
Barn Swallow:
MNR has granted a permit for the 407 East corridor project that would allow for the removal of
identified structures (bridges, buildings) that are nest sites for barn swallow. As compensation
new structures are designed to provide nest site opportunity. In addition, while bridges are
under construction and not accessible to birds, nesting structures are to be built to provide
temporary nest habitat. As identified earlier in the report a temporary barn swallow artificial nest
site will be constructed for this project.
MNR has been contacted for additional barn swallow nests that were encountered during this
detail design process.
Redside Dace:
The permit requirements for Redside Dace are to complete the designs established during the
EA and seek final approval from the MNR. This approval process is underway.
5 Conditions of MOE Approval
Section 9 of the 407 East EA Report identifies the Commitments and Monitoring for the
Undertaking of the 407 East project. Table 6.2 identifies the commitments and monitoring that
are specific to the relevant features and requirements associated with this project.
6 Environmental Compliance Documentation
6.1 Environmental Management Plan
An Environmental Management Plan (EMP) will be prepared for this contract. The EMP will
detail the EA commitments, monitoring requirements and approval conditions. It will be used by
the MTO and the contractor as a means to monitor and document how the commitments,
monitoring requirements and approval conditions have been met. The EMP will provide the
source of information to support the EA Compliance documentation and monitoring.
6.2 Annual EA Compliance Monitoring Reporting
In accordance with the EA approval, an EA compliance monitoring program was prepared to
serve as a monitoring strategy to ensure that the commitments made during the 407 EA are
fulfilled during construction, operation and maintenance of the design. An annual EA
Compliance Monitoring Report is to be submitted to the MOE to document the progress on
meeting the commitments.
Compliance Monitoring information will be produced specific to the 407 Brock interchange
project and submitted to MTO for inclusion in the 407 East Annual Compliance Report (ACR)
The ACR will be submitted to MOE annually on or before May 31 of each year until all the
commitments have been met.
MMM Group Limited
45
2013
Table 6.1: Summary of Environmental Concerns and Commitments for the Highway 407ETR East / Brock Road Interchange
I.D.
#
Issues/Concerns Potential Effects
Concerned
Agencies
Impacts to Fish and Fish Habitat



MNR
DFO
TRCA
1.1
New Watercourse Crossings


1.2
Channel Realignments


1.0
I.D.
#
Mitigation/Protection/Monitoring
1

2

Permissible in-water timing window: July 1 to September 15, annually to protect sensitive fish and fish habitat (Redside
Dace), unless permitted by the MNR
Adhere to all conditions, mitigation measures, monitoring and reporting that pertain to fish and fish habitat where identified
in the contract package, ESA permits and Letters Of Advice /Authorizations under the Fisheries Act.
MNR
DFO
1
2


Maintain fish passage in direct fish habitat where identified in the contract package and applicable permits
Maintain flow in indirect fish habitat where identified in the contract package and applicable permits
MNR
DFO
1

Carry out channel realignments in accordance with contract documents and conditions of approvals by the MNR. Work to
incorporate all protection and mitigation.
1

2.0
Impacts to Vegetation


MNR
MOE
2
3


Implement edge management measures as to be described in the Environmental Management Plan and shown in the
contract to reduce impacts to new forest edges
Implement landscape plantings, and vegetation restoration measures as identified in the Community Value Plan
Where feasible, transplant 5 butternut specimens to sites of suitable habitat. Transplant sites to be confirmed through
consultation with the MNR.
3.0
Impacts to Species at Risk (SAR) and Regionally/Locally
Rare Species


MNR
TRCA
1

The Contractor will adhere to the provisions of all ESA permits, unless otherwise approved by the MNR.
3.1
Barn Swallow

MNR
1
2


Construct a nesting structure to mitigate the effect of loss of nesting habitat
Cover structures during construction to prevent birds from gaining access during construction
3.2
Redside Dace

MNR
1

Contractor to adhere to the site specific and general mitigation measures and overall benefit requirements detailed in ESA
Approvals and as specified in the contract




TRCA
MTO
MNR
City of
Pickering
Region of
Durham
1

2

Where feasible, provide Conservation Authorities, municipalities with opportunity to carry out the salvage of regionally rare
plant species where they are confirmed to occur within the Interchange
Salvage of rare plants where applicable in these units include: C5BR-1b, C5BR-3, C5BR-6b, C5S16-1a, C5S16-1b, and
WS16-1.
o Local agencies are to be provided with an opportunity to salvage regionally rare plants prior to construction
o Preferred salvage period for herbaceous species: May – June.
1

2

3.3
Regionally/Locally Rare Species

Impacts to regionally rare plant species

4.0
Impacts to Surface Water and Drainage
MMM Group Limited

MOE
Carry out dewatering activities according to the Category 3 Permit to Take Water (PTTW). Provide protection measures
as identified during construction.
Dewatering shall conform to OPSS 517 and 518
46
2013
I.D.
#
5.0
Impacts to Groundwater and Wells
Concerned
Agencies

MOE
Socio-Economic Environment
6.0

Negative effects to lands, stakeholders, properties,
communities, access to community services and/or
emergency services

MTO

City of
Pickering


MTO
Local
Residences
EMS, Fire,
OPP, Police
I.D.
#
1

2

3

All complaints of well interference will be promptly investigated and alternative water supply restored if it is deemed to be
caused by the construction works;
1
2


The contractor shall maintain access to lands within the project limits where specified in the contract
The contractor shall adhere to the provisions detailed in the contract that relate to MTO agreements with landowners
affected by the undertaking.
1

Relocation of Don Beer Memorial park ball diamonds to an alternate site by the City of Pickering
1

The Contractor will notify local emergency services including: Fire, Police, EMS (Ambulance) and OPP as identified in the
contract documents a minimum of two (2) weeks prior to project start up.
2

Emergency services will be notified of access restrictions through the project limits and the timing of all road closures,
traffic staging and detours to ensure that delays in access to emergency services are minimized.
1
2


3
4


Segregate waste and recyclable materials where possible.
Contaminated fill material is not recommended for re-use onsite or offsite and should be removed and managed as nonhazardous waste in accordance with applicable regulations
Removal of contaminated fill Site TP12-1 from the ROW to be treated as solid non-hazardous waste
Surficial waste and/or recyclable material identified at the site to be removed from the ROW and properly managed off-site
for reuse, recycling or disposal.
1

Any existing water supply wells within the project limits will be abandoned by an MOE-licensed water well driller, in
accordance to O. Reg. 903 as amended, prior to construction in the area. Any existing monitoring wells will be
abandoned as per such when no longer needed, or prior to construction if they are in the construction footprint.
All records of monitoring visits and results to be made available on-site and/or at construction offices;
Property and Access

6.1

6.2
Loss, severance or encroachment onto lands within
the project limits
Permanent, or temporary restrictions to property
access
Emergency Services

Management of Excess Material and Disposal of Waste
7.0
8.0

Transport of soil contaminants during excavation and
grading works.
Built Heritage and Cultural Landscape
MMM Group Limited


MOE
MTO


MTCS
MOE
Reuse of select salvageable materials from 3600 16th Sideroad within decorative features and/or landscaping plans within
the interchange or off-site at existing built heritage resources or cultural heritage landscapes.
47
2013
I.D.
#
Concerned
Agencies
Archaeological Resources
9.0

Resources disturbed or encountered during
construction activities (excavation, grading)

MTCS
Erosion and Sediment Control

10.0


Increased erosion potential in disturbed areas during
construction
Transport of sediments to sensitive environmental
areas and/or features downslope/downstream of
work area
Potential erosion and sediment issues postconstruction
MMM Group Limited





MOE
MTO
MNR
DFO
TRCA
I.D.
#
1

No work, vehicle access or disturbance within the limits of the protected archaeological sites
2

Farm fencing to be installed at perimeter of buffer for the Peter Webb 1 site and the Mr. Ludger Gros-Louis site to
delineate and protect during construction.
3

Stage 4 archaeological mitigation to be completed by others at the Salgo site prior to construction in the area of the site.
4

In the event that deeply buried archaeological remains are encountered during construction, the office of the Regulatory &
Operations Group, Ministry of Culture (807-475-1632) shall be contacted immediately.
5

In the event that human remains are encountered both the Ministry of Culture (807-475-1632) and the Registrar or Deputy
Registrar of the Cemeteries Regulation Unit of the Ministry of Consumer and Business Services (416-326-8404) shall be
contacted immediately.
1
2


3

4
5
6



Adhere to the construction staging and erosion control plan for all works
All erosion sediment control measures shall be installed prior to construction and are to be left in place until the site is fully
restored and stabilized, including final ditching; as specified in the contract documents
Construction phasing to be scheduled to minimize the extent and period to which disturbed soils are exposed to
weathering.
Temporary ESC measures employed shall be biodegradable (i.e. erosion control blankets).
Install and maintain continuous silt fencing downstream and/or downslope of all exposed areas.
ESCs are to be routinely inspected after each storm and cleaned out as required, to ensure that the controls remain
effective.
48
2013
Table 6.2: Summary of EA Commitments and EA Compliance
ID
No.
EA Commitment
Source of Commitment
EA Compliance
GENERAL
1
Prepare Environmental Management Plans (EMP’s) to ensure mitigation/compensation
measures and monitoring requirements are employed, inspected and maintained during MTO
construction and operation
EMP will be prepared specific to the 407 Brock Road Interchange project
3
Carry out ongoing consultation with stakeholders during subsequent design phases and
MTO
construction
Agency and stakeholder consultation in form of notifications for Study
Commencement/PIC and Study Completion; and PIC held to provide detail design
information.
4
Finalize 407 East Community Value Plan in consultation with municipalities and First Nation
MTO
communities
CVP updated for detail design. Region of Durham consulted for input.
5
Carry out ongoing engagement with First Nations communities during subsequent design phases
MTO/First Nations
and construction
First Nations contacted at Study Commencement/PIC and Study Completion to
inform them of the detail design study
6
Notify First Nations of opportunity to be involved in Stage 3 and Stage 4 Archaeological
MTO/First Nations
Assessment related to Aboriginal finds prior to their initiation
MTO has notified First Nations of pending Stage 4 investigations at Salgo site
HYDROGEOLOGY
9
Transfer all hydrogeology mitigation/compensation measures and monitoring requirements into
MTO
the EMP
Will be transferred to EMP for this project
10
Acquire all necessary hydrogeology permits/approvals
Permit to Take Water application submitted to MOE
11
Explore the use of clay or a geomembrane for lining stormwater management ponds, highway
MTO
ditching and outlet channels in areas here high permeability soils exists at surface
Clay liners are included in 3 stormwater ponds identified for this project
12
Explore the use of permeable sub-base material and groundwater equalization drains for raised
MTO
fill for the highway through sensitive wetland areas and unconfined aquifers
At the fill areas at creek structures M2, M4 and M10, where ground water
conditions indicated potential for seepage/active springs standard earth material
was replaced with course granular material to ensure permeability
13
Where feasible, keep the highway profile at or above grade where highly permeable soils are
MTO
present at surface to avoid potential adverse effects to groundwater
Roadway profile was kept at or above existing ground where possible. The VE
exercise eliminated the deep cut that was proposed for highway 7. SWM pond
07W eliminated and replaced with terraces which avoided significant cut at that
location
14
Where permanent sidewall drainage is required in deep highway cuts, explore the possibility of
MTO
collecting cold groundwater seepage and discharging it into receptor streams
Cross-subdrains will be installed at the base of the sub-excavation at M-10 (site 7),
where significant groundwater springs occur. Subdrains proposed to be installed
under ditches at several locations to provide cooling tranches prior to discharge to
Brougham Creek Tributary B
MTO/MOE
TERRESTRIAL
15
Transfer all terrestrial mitigation/compensation measures and monitoring requirements into the
MTO
EMP
16
Acquire all necessary permits/approvals prior to construction
Information submitted to MNR to ensure compliance with the Endangered Species
Act.
17
Develop and finalize edge management designs in consultation with MNR and the Conservation
MTO/MNR/TRCA
Authorities at vegetation polygons: C5BR-2, CS516-1.
MMM Group Limited
MTO/MNR
49
Edge Management Plans have been developed and incorporated into contract.
Edge Management has been provided for Brock Road crossing of Brougham
Creek (vegetation polygon C5BR-3). Plans will be submitted to MNR.
2013
ID
No.
EA Commitment
EA Compliance
MTO/MNR/CA’s
Some butternut specimens in project area accounted for in ESA Permit for 407
East Phase 1. Additional butternuts have been reported to MNR. Transplantable
retainable butternuts have been identified in the contract to be transplanted to sites
of suitable habitat
18
Further develop and implement 407 East Butternut Tree Strategy (various requirements)
20
These agencies (as applicable to this interchange) will be contacted for offer to
Provide opportunity for Durham Region, MNR, CLOCA, TRCA (and GRCA) to salvage regionally
MTO/MNR/CA’s/Municipalities
remove specimens prior to construction
rare plant species
23
During subsequent design phases review opportunities to minimize encroachment into
MTO/MNR
vegetation unit C5S16-1
Design refinement of Highway 7 over Highway 407 resulted in a reduction of
vegetation removal from this unit
24
Prepare access management plan for vegetation unit WS16-1
Access management plan has been prepared for work in this valleyland
MTO
FISHERIES
27
Transfer all fisheries mitigation/compensation measures and monitoring requirements into the
MTO
EMP
28
Acquire all necessary permits/approvals prior to construction
MTO/MNR
Information is being submitted to MNR to secure approvals for work in redside
dace streams
30
Develop and implement a 407 East Redside Dace Strategy
MTO/DFO/MNR
Designs to provide overall benefit to redside dace in Brougham Creek and
associated tributaries are being developed in consultation with MNR
31
Undertake a detailed assessment to confirm whether or not specific physical channel measures
are warranted to support salmonid spawning and rearing habitat at Brougham Creek Tributary B MTO/DFO/MNR
(Site 7)
Design includes measures to support salmonid spawning and rearing.
32
Develop and implement natural channel designs to re-instate the relocated channel sections to
MTO/DFO
maintain natural fluvial processes
Natural channel design includes maintaining natural fluvial processes, as much as
possible.
34
Retain a Fisheries Contract Specialist where a Fisheries Act Authorization is required to ensure
MTO
designs are properly implemented
This requirement is identified in the contract
36
Ensure where feasible construction sequencing considers the relocation and/or realignment of
MTO/DFO
fisheries channels in advance of structural works
Construction sequencing has been developed in order to carry out creek works in
advance of structural works
37
Opportunity to refine SWM facilities to address thermal and sediment treatment
MTO/MNR/CA’s
SWM pond depths increase to mitigate thermal warming
MTO/MOE
MTO
AIR QUALITY
38
Transfer all air quality mitigation measures into the EMP
NOISE
39
Transfer all noise mitigation measures into the EMP
LANDSCAPE COMPOSITION
41
Transfer all landscape mitigation measures into the EMP
MTO
42
Apply a minimum 2-year warranty to all planted landscape material
MTO
This is identified in the contract
ARCHAEOLOGY
48
Complete Stage 2, 3 and 4 archaeological assessments
MTO/MCL
Stage 4 AA will be carried out at Salgo site prior to construction
49
Acquire all necessary archaeological approvals
MTO/MCL
Required documentation to be submitted to MCL for sign-off
MMM Group Limited
50
2013
ID
No.
EA Commitment
EA Compliance
In the event that deeply buried archaeological remains are found during construction activities
the Heritage Operation Unit of the Ontario Ministry of Culture will be notified immediately
50
In the event that human remains are encountered during construction both the Ministry of Culture MTO/MCL
and the Registrar or Deputy Registrar of the Cemeteries Regulation Unit of the Ministry of
Government Services, Consumer Protection Branch at (416) 326-8404 or toll-free at 1-800-8899768 should be contacted immediately
Will be identified in the EMP and project commitments in the DCR
BUILT HERITAGE
54
Transfer all built heritage mitigation measures into the EMP. Current measures and Best
Management Practices available at the time of construction should be implemented where MTO/MCL
applicable
Re-use of barn stone foundation considered but was deemed not to be feasible for
use in Gateway feature.
DRAINAGE/STORMWATER
56
Confirm and finalize the SWM design, including pond designs and storm sewer system
MTO/CA’s
requirements
MMM Group Limited
51
Design finalized and accepted by MTO and CA’s.
2013
7 Monitoring
In order to ensure that mitigation measures identified in this DCR are implemented as intended,
monitoring of the environmental effects during different life stages of the project are proposed.
The following commitments have been proposed to ensure that, where required, monitoring is
carried out during construction, operation and/or maintenance of the Interchange.
7.1 Construction Monitoring
During construction, access related complaints will be investigated and considered on a case by
case basis by MTO and/or its Agent. Specific monitoring requirements will be applied as
described in the EA commitments and compliance, environmental permits and the contract
documents. Monitoring during construction will be related to the following:

Construction of watercourse crossings and channel realignments. An MTO Fisheries
Contract Specialist will be required to fulfill the monitoring requirements to satisfy the
conditions of ESA permitting and Fisheries Act Authorizations.

Vegetation monitoring specific to ESA permitting for butternut and coordination with
agencies where required for regionally rare and sensitive plants.

Groundwater and Wells (private, public) will be monitored as specified in the Permit to
Take Water for the project. The environmental inspector will monitor all works and in
particular works related to erosion and sediment controls, dewatering, restoration, and
in-water or near-water works. All damaged erosion and sediment control measures shall
be repaired and/or replaced ASAP. General, site/task specific monitoring will include:
o
Dewatering activities – ESC measures, water quality (on-site and context)
o
Discharge rates – twice daily
o
Proper function of dewatering and discharge systems
o
Stream level monitoring
o
Well monitoring
o
Proper documentation of monitoring and complaints:

All records of monitoring visits and results to be made available on-site
and/or at construction offices;

All complaints of well interference will be promptly investigated and
alternative water supply restored if it is deemed to be caused by the
construction works;
MMM Group Limited
52
2013
8 References
AECOM, August 2009. 407 East Individual Environmental Assessment (IEA) and Preliminary
Design Study; Environmental Assessment Report, Prepared for the MTO.
Archaeological Services Inc. July 2011. Cultural Heritage Evaluation Report and Documentation
Report, Built Heritage Resources and Cultural Heritage Landscapes; 3500 16th Sideline,
North Half of Lot 17, Concession V, City of Pickering, Regional Municipality of Durham,
Ontario; MTO Site No. WM-01, PIN 264020010.
COSEWIC, 2012. Committee on the Status of Endangered Wildlife in Canada. Federal status
updated November 2012.
Gartner Lee Limited and Ecoplans Limited, August 2009. Natural Environment (Terrestrial)
Impact Assessment of the Recommended Design. Prepared for MTO - Highway 407
East.
Lee, Harold, Wasyl Bakowsky, John Riley, Jane Bowles, Michael Puddister, Peter Uhlig, and
Sean McMurray, 1998. Ecological Land Classification for Southern Ontario: first
approximation and its application. North Bay: Ontario Ministry of Natural Resources,
Southcentral Science Section, Science Development and Transfer Branch. SCSS Field
Guide FG-02.
LGL Limited & Delcan, May 2012. Assessment of Design Refinements to the 407 East Brock
Road Interchange. Prepared for the MTO.
Ministry of the Environment (MOE), 2010. Environmental Assessment Act, Section 9, Notice of
Approval to Proceed with the Undertaking; An Environmental Assessment for the
Easterly Extension of the 407 Transportation Corridor, MTO (EA No. EA-02-07). John
Gerretsen, May 26, 2010.
Ministry of Transportation. (August 2009). 407 East Individual Environmental Assessment and
Preliminary Design Study: Socio-economic Impact Assessment of the Recommended
Design. Prepared by Meridian Planning Consultants.
MMM Group Limited (MMM), January 2013. Highway 407 East – Brock Road Interchange,
Design Change Net Effects Assessment
MMM Group Limited (MMM), January 2013. Hydrogeological Assessment for Construction
Permit to Take Water, Highway 407 ETR Connection – Brock Road Area, Markham and
Pickering, Ontario (Draft).
MMM Group Limited (MMM). 2013. Stormwater Management Report, Highway 407E/Brock
Road Interchange Connection (Draft).
Novus Environmental, 2012. Air Quality Assessment Highway 407 East Expansion Brock Road
Re-Alignment (Draft). Prepared for the MTO
Toronto and Region Conservation Authority. 2004. Table entitled TRCA Flora Scores & Ranks
(11 April 2003). Unpublished document provided by TRCA
MMM Group Limited
53
2013
Toronto Region Conservation Authority. 2003b. Vegetation Community Scores. Unpublished
document provided by TRCA
TSH Engineers, Architects, Planners (TSH), April 2011. Comprehensive Study Report, 407 East
Transportation Corridor, Canadian Environmental Assessment Agency;
Ministry of Transportation (MTO), 2006. Environmental Reference for Highway Design (ERHD).
Prepared for the MTO.
MMM Group Limited
54
2013
Appendix A: Public Consultation
NOTICE OF DETAIL DESIGN STUDY
AND PUBLIC INFORMATION CENTRE
MMM Group Limited (MMM) has been retained by 407 ETR Concession Company Limited (407ETR) to undertake the Detail
Design of the new Highway 407 East/Brock Road Interchange on behalf of the Ministry of Transportation (MTO). This interchange
is located at the west end of the approved Highway 407 East Transportation Corridor from Brock Road in Pickering to Highway
35/115 in Clarington.
PROJECT HISTORY/APPROVALS
The 407 East Environmental Assessment (EA) Study was conducted
as an Individual EA, in accordance with the Ontario Environmental
Assessment Act and was approved by the Minister of the
Environment on, June 3, 2010, allowing the project to proceed,
subject to certain conditions. The project also underwent a review
under the Canadian Environmental Assessment Act (CEAA) and
a decision statement was issued by the federal Minister of the
DETAIL DESIGN
The purpose of this study is to complete the Detail Design of
the Highway 407 East/Brock Road Interchange. Under the Class
Environmental Assessment (Class EA) for Provincial Transportation
Facilities (2000) this project is identified as a Group ‘A’ project. The
work will include:
r 5IF TFQBSBUJPO PG UIF FYJTUJOH FBTUCPVOE BOE XFTUCPVOE
MBOFTPG)JHIXBZGSPNBQQSPYJNBUFMZLNXFTUPGUIF
FYJTUJOH)JHIXBZ#SPDL3PBEJOUFSTFDUJPOUPUIFFYJTUJOH
Highway 7/Sideline 16 Road intersection;
r 5IF OFX )JHIXBZ &BTU NBJOMJOF GSPN UIF
Highway 7/Sideline 16 Road, easterly 850 m;
r 5IF SFBMJHONFOU PG #SPDL 3PBE PO CFIBMG PG UIF 3FHJPO PG
Durham to accommodate the new interchange;
r "OFX)JHIXBZ&BTUSFBMJHOFE#SPDL3PBE*OUFSDIBOHFBOE
r 5IF SFBMJHONFOU PG )JHIXBZ XJUIJO UIF MJNJUT PG UIF OFX
interchange.
PUBLIC INFORMATION CENTRE
A Public Information Centre (PIC) has been scheduled to present the Detail Design of the interchange for public review and
comment. Representatives of the Project Team will be available to answer questions and receive your input at that time. The PIC
will be held at the following location:
Location:
Brougham Hall – 3545 Brock Road, Brougham, Ontario
Date and Time: Wednesday, November 21, 2012 – 4:00 p.m. to 8:00 p.m.
This study is following an approved planning process with the opportunity for public input. In accordance with the Class EA, a Design
and Construction Report (DCR) will be prepared and made available for a 30-day public review period with public notice advising of
the start of the review period. The DCR is not eligible for a Part II Order (‘bump-up’ opportunity).
HOW TO COMMENT
We are interested in hearing your comments regarding the study. Comments and information regarding this project are being collected
to assist the study team in meeting the requirements of the Environmental Assessment Act. This information will be maintained on file
GPSVTFEVSJOHUIFQSPKFDUBOENBZCFJODMVEFEJOQSPKFDUEPDVNFOUBUJPO8JUIUIFFYDFQUJPOPGQFSTPOBMJOGPSNBUJPOBMMDPNNFOUT
will become part of the public record in accordance with the Freedom of Information and Protection of Privacy Act.
If you would like to have your name added to the mailing list or to provide comments, please contact the MMM, 407 ETR or MTO
Project Managers as follows:
Ms. Alla Dinerman, P.Eng.
Senior Project Manager
Transportation Engineering
MMM Group Limited
100 Commerce Valley Drive West
Thornhill, ON L3T 0A1
UFM
GBY
FNBJMEJOFSNBOB!NNNDB
Mr. Peter Baldasaro, P.Eng.
Manager, Infrastructure
407 ETR
6300 Steeles Avenue West
Woodbridge, ON L4H 1J1
tel: 905-266-2167
GBY
FNBJMQCBMEBTBSP!FUSDPN
Mr. Frank Martins, P.Eng.
Contract Management Engineer
Strategic Highways Management Office
1201 Wilson Avenue, 7th Floor, Building D
Toronto, ON M3M 1J8
UFM
GBY
FNBJMGSBOLNBSUJOT!POUBSJPDB
November 12, 2012
16.12040.001
EXAMPLE OF AGENCY LETTER
NAME
ADDRESS BLOCK
Dear CONTACT NAME,
Subject:
Notice of Detail Design Study and Public Information Centre
Highway 407 East/Brock Road Interchange
MMM Group Limited (MMM) has been retained by 407 ETR Concession Company Limited
(407ETR) to undertake the Detail Design of the new Highway 407 East/Brock Road interchange on
behalf of the Ministry of Transportation (MTO). This interchange is located at the west end of the
approved Highway 407 East Transportation Corridor from Brock Road in Pickering to Highway
35/115 in Clarington. The proposed interchange is shown in the attached notice.
Under the Class Environmental Assessment (Class EA) for Provincial Transportation Facilities
(2000) this project is identified as a ‘Group A’ project. Subsequent to the Highway 407/Brock Road
Interchange preliminary design presented in the approved 407 East – Environmental Assessment
Report (2009), the MTO has modified the interchange by shifting the realigned Brock Road
alignment to the west, to avoid the Ludger Gros-Louis archaeological site. The purpose of this
study is to complete the Detail Design of the Highway 407 East/Brock Road interchange. The work
will include:





The separation of the existing eastbound and westbound lanes of Highway 407 from
approximately 1.2 km west of the existing Highway 407 / Brock Road intersection to the
existing Highway 7 / Sideline 16 Road intersection;
The new Highway 407 East mainline from the Highway 7 / Sideline 16 Road, easterly 850m;
The realignment of Brock Road on behalf of the Region of Durham to accommodate the new
interchange;
A new Highway 407 East/ realigned Brock Road Interchange
The realignment of Highway 7 within the limits of the new interchange
We invite you to attend an advance viewing of Public Information Centre (PIC) displays for review
ministries and agencies prior to the opening of the PIC for the general public:
Location:
Brougham Hall – 3545 Brock Road, Brougham, Ontario
Date & Time: Wednesday November 21, 2012 – 3:00 pm to 4:00 pm
Please refer to the attached copy of the newspaper notice for additional detail about the project,
including components of the detail design and contact persons for the project.
This study is following an approved planning process with the opportunity for public input. In
accordance with the Class EA, a Design and Construction Report (DCR) will be prepared and made
available for a 30-day public review period with public notice advising of the start of the review
period. The DCR is not eligible for a Part II Order (‘bump-up’ opportunity).
We look forward to your attendance at this session of the PIC and to receiving your comments on
this project. If you would like additional information, please contact the undersigned at (905) 8827212 extension, or by email at [email protected].
Yours truly,
MMM Group Limited
SIGNATURE
Partner
C.C.
Paul Ruttan (407ETR)
Peter Baldasaro (407ETR)
Frank Martins (MTO)
Darlene Proudfoot (MTO)
Jeff Warren (MMM)
Encl.
Notice of Study Commencement and Public Information Centre
2
Ministry of
Transportation
Ministère des
Transports
Strategic Highways
Management Office
1201 Wilson Avenue
7th floor, Building “D”
Downsview, ON M3M 1J8
Bureau de gestion
des routes stratégiques
1201 avenue Wilson
7e étage, édifice D
Downsview ON M3M1J8
Tel:
Fax:
Tél:
(416) 235-4216
Téléc: (416) 235-4267
(416) 235-4216
(416) 235-4267
November 12, 2012
16.12040.001
EXAMPLE OF FIRST NATION LETTER
ADDRESS BLOCK
Dear CONTACT NAME,
Subject:
Highway 407 Brock Road Interchange Detail Design
MMM Group Limited has been retained to undertake the detailed design of the Highway 407
Brock Road interchange. This interchange is located at the west end of the approved Highway
407 East from Brock Road in Pickering, to Highway 35/115 in Clarington.
(2000) this project is identified as a ‘Group A’ project. Subsequent to the Highway 407/Brock
Road Interchange preliminary design presented in the approved 407 East – Environmental
Assessment Report (2009), the MTO has modified the interchange by shifting the realigned
Brock Road alignment to the west, to avoid the Ludger Gros-Louis archaeological site. The
purpose of this study is to complete the Detail Design of the Highway 407 East/Brock Road
interchange. The work will include:





approximately 1.2 km west of the existing Highway 407 / Brock Road intersection to
the existing Highway 7 / Sideline 16 Road intersection;
The new Highway 407 East mainline from the Highway 7 / Sideline 16 Road, easterly
850m;
The realignment of Brock Road on behalf of the Region of Durham to accommodate
the new interchange;
We have scheduled a Public Information Centre (PIC) to present the design for public review
and comment. MTO, 407 ETR and MMM Group staff will be available to answer questions and
receive your input at that time. We invite you to attend an advance viewing of PIC displays for
review ministries and agencies prior to the opening of the PIC for the general public:
Location:
Date:
Time:
Brougham Hall – 3545 Brock Road, Brougham, ON
Wednesday November 21, 2012
3:00 pm to 4:00 pm
Please refer to the attached copy of the newspaper notice for additional detail about the project,
including components of the detail design and contact persons for the project.
This study is following an approved planning process with the opportunity for public input. In
accordance with the Class EA, a Design and Construction Report (DCR) will be prepared and
made available for a 30-day public review period with public notice advising of the start of the
review period. The DCR is not eligible for a Part II Order (‘bump-up’ opportunity).
We look forward to your attendance at this session of the PIC and to receiving your comments
on this project. If you would like additional information, please contact Ms. Alla Dinnerman of
MMM Group Ltd. at (905) 882-7212, or by email at [email protected].
Sincerely,
SIGNATURE
C.C.
Alla Dinnerman (MMM)
Jeff Warren (MMM)
Encl.
Notice of Study Completion
MMM Group Limited (MMM) has been retained by 407ETR Concession Company Limited (407ETR) to undertake the Detail Design of the new
Highway 407 East/Brock Road Interchange on behalf of the Ministry of Transportation (MTO). This interchange is located at the west end of the
approved Highway 407 East Transportation Corridor from Brock Road in Pickering to Highway 35/115 in Clarington.
Project History / Approvals
The 407 East Environmental Assessment (EA) Study was
conducted as an Individual EA, in accordance with the Ontario
Environmental Assessment Act and was approved by the Minister of
the Environment on June 3, 2010, allowing the project to proceed,
subject to certain conditions. The project also underwent a review
under the Canadian Environmental Assessment Act (CEAA) and a
decision statement was issued by the federal Minister of the
Detail Design
The purpose of this study is to complete the Detail Design of the
Highway 407 East/Brock Road interchange. Under the Class
Environmental Assessment (Class EA) for Provincial Transportation
Facilities (2000) this project is identified as a ‘Group A’ project. The
work will include:
x
x
x
x
x
The separation of the existing eastbound and westbound lanes
of Highway 407 from approximately 1.2 km west of the existing
Highway 407 / Brock Road intersection to the existing Highway
7 / Sideline 16 intersection;
The new Highway 407 East mainline from the Highway 7 /
Sideline 16, easterly 850 m;
The realignment of Brock Road on behalf of the Region of
Durham to accommodate the new interchange;
A new Highway 407 East/ realigned Brock Road Interchange;
The Process
In accordance with the Class EA, a Design and Construction Report (DCR) has been prepared to document the detail design and will be available for
a 30-day public review period beginning on Wednesday February 6, 2013. Interested persons are encouraged to review this document and provide
comments in writing to the Consultant, 407ETR or MTO Project Managers listed below by Thursday March 7, 2013. The DCR is not eligible for a
Part II Order (‘bump-up’ opportunity).
How to Comment
The DCR is available for review online at www.highway407east.com/project-info/project-background/reports/ and at the following locations
beginning on Wednesday February 6, 2013 during regular business hours:
The Corporation of the City of Pickering
Clerk’s Office
1 the Esplanade South
Pickering, ON
407ETR
Customer Service Centre
6300 Steeles Ave. West
Woodbridge, ON
Pickering Public Library,
Greenwood Branch
3540 Westney Rd
South of 6th Concession
Greenwood, ON
The Ministry of the Environment
Central Region Office
5775 Yonge St.
8th floor
North York, ON
The Ministry of Transportation
Central Region
7thFloor, Building ‘D’
1201 Wilson Avenue
Downsview, ON
Greenwood Branch Open:
Tuesday, Wednesday & Saturday
We are interested in hearing your comments regarding the study. With the exception of personal information, all comments will become part of the
public record in accordance with the Freedom of Information and Protection of Privacy Act. Written comments are to be sent to the MMM, 407ETR,
or MTO project managers as follows:
MMM Group Limited
100 Commerce Valley Drive West
Thornhill, ONL3T 0A1
Tel: (905) 882-7212
Fax: (905) 882-0055
E-mail: [email protected]
Mr. Peter Baldasaro, P. Eng.
Manager, Infrastructure
407ETR
6300 Steeles Avenue W
Woodbridge, ONL4H 1J1
Tel: (905) 266-2167
Fax: (905) 264-5315
Mr. Frank Martins, P.Eng.
Ministry of Transportation Ontario
1201 Wilson Avenue
7thFloorBuilding D
Toronto, ONM3M 1J8
Tel: (416) 235-4077
Fax: (416) 235-4267
January 29, 2013
16.12040.001
EXAMPLE OF AGENCY LETTER
NAME
ADDRESS BLOCK
Dear CONTACT NAME,
Subject:
Highway 407 East/Brock Road Interchange Detail Design
MMM Group Limited (MMM) has been retained by 407 ETR Concession Company Limited
(407ETR) to undertake the Detail Design of the new Highway 407 East/Brock Road interchange on
behalf of the Ministry of Transportation (MTO). This interchange is located at the west end of the
approved Highway 407 East Transportation Corridor from Brock Road in Pickering to Highway
35/115 in Clarington. The location of the proposed interchange is shown in the attached notice.
Report (2009), MTO modified the interchange by shifting the realigned Brock Road alignment to the
west, to avoid the Mr. Ludger Gros-Louis archaeological site.
The purpose of this study is to complete the Detail Design of the Highway 407 East/Brock Road





The realignment of Brock Road on behalf of the Region of Durham to accommodate the new
interchange;
In accordance with the Class EA, a Design and Construction Report (DCR) has been prepared to
document the detail design and will be available for a 30-day public review period beginning on
Wednesday February 6, 2013. The DCR is not eligible for a Part II Order (“bump-up” opportunity).
Please see the enclosed copy of the notice of study completion for details on where hard copies
and a digital copy of the report are available for review.
We look forward to receiving your comments on this project in writing by Thursday March 7, 2013.
If you would like additional information, please contact the undersigned at (905) 882-7212
extension, or by email at [email protected].
Yours truly,
MMM Group Limited
SIGNATURE
Partner
C.C.
Frank Martins (MTO)
Chris Brown (MTO)
Jeff Warren (MMM)
Encl.
2
Ministry of
Transportation
Ministère des
Transports
Strategic Highways
Management Office
1201 Wilson Avenue
7th floor, Building “D”
Downsview, ON M3M 1J8
Bureau de gestion
des routes stratégiques
1201 avenue Wilson
7e étage, édifice D
Downsview ON M3M1J8
Tel:
Fax:
Tél:
(416) 235-4216
Téléc: (416) 235-4267
(416) 235-4216
(416) 235-4267
January 30, 2013
16.12040.001
EXAMPLE OF FIRST NATION LETTER
ADDRESS BLOCK
Dear CONTACT NAME,
Subject:
Highway 407 Brock Road Interchange Detail Design
The Ministry of Transportation (MTO) and 407 ETR Concession Company Limited retained MMM
Group Limited to undertake the detailed design of the Highway 407 Brock Road interchange. This
interchange is located at the west end of the approved Highway 407 East from Brock Road in
Pickering, to Highway 35/115 in Clarington.
Report (2009), MTO modified the interchange by shifting the realigned Brock Road alignment to the
west, to avoid the Mr. Ludger Gros-Louis archaeological site.
The purpose of this study is to complete the Detail Design of the Highway 407 East/Brock Road





The realignment of Brock Road on behalf of the Region of Durham to accommodate the
new interchange;
In accordance with the Class EA, a Design and Construction Report (DCR) has been prepared to
document the detail design and will be available for a 30-day public review period beginning on
Wednesday February 6, 2013. The DCR is not eligible for a Part II Order (“bump-up” opportunity).
Please see the enclosed copy of the notice of study completion for details on where hard copies
and a digital copy of the report are available for review.
../2
Page 2
We look forward to receiving your comments on this project in writing by Thursday March 7, 2013.
If you would like additional information, please contact Ms. Alla Dinnerman of MMM Group Ltd. at
(905) 882-7212, or by email at [email protected].
Sincerely,
SIGNATURE
C.C.
Chris Brown (MTO)
Alla Dinnerman (MMM)
Jeff Warren (MMM)
Encl.
Highway 407E / Brock Road Interchange
Name
Agency Contact List
Position / Affiliation
Company / Nation
Habitat Team Leader Environmental Assessment Officer Regional Environmental Assessment Coordinator Senior Environmental Officer Regional Manager Strategic and Studies
Regional Manager Strategic and Studies
Aboriginal Affairs and Northern Development Canada Department of Fisheries and Oceans Eastern Ontario District Prescott Office
Environment Canada Ontario Region Environmental Policy and Assessment Division
Health Canada Transport Canada Pickering Lands Transport Canada Pickering Lands Branch
Pickering Lands Transport Canada Pickering Lands Branch
Environmental Assessment Coordination Consultation and Accommodation Unit (CAU)
Supervisor Project Coordination
District Planner Archaeology Review Officer Transportation Planner Associate Ministry of the Environment Environmental Approvals Branch Environmental Assessment Services
Ministry of Natural Resources Aurora District Ministry of Tourism and Culture Programs & Services Branch GO Transit Ontario Growth Secretariat Ministry of Public Infrastructure and Renewal OPP – Whitby Detachment OPP Whitby Project Manager Transportation Design
Manager Transportation Design
Senior Planner Transportation Planning
Division Head Engineering Services Division Planner II Region of Durham Region of Durham Region of Durham The Corporation of the City of Pickering Toronto Region Conservation Authority Vice President Seaton Lands
Senior Planner Enbridge Gas Enbridge Pipelines Rogers Cable Communications Inc. Veridian Hydro Bell Canada Infrastructure Ontario Infrastructure Ontario Associate General Counsel, Legal Elder Legal Council Barrister & Solicitor Coordinator for William Treaties First Nation
Chippewas of Georgina Island Chippewas of Georgina Island Curve Lake First Nation Curve Lake First Nation Kawartha Nishnawbe First Nation Mississaugas of Scugog Island Chippewas of Beausoleil Christian Island
Alderville First Nation Alderville Administrative Office
Ministry of Aboriginal Affairs Hiawatha First Nation Hiawatha First Nation Chippewas of Rama First Nation Mississaugas of Scugog Island Alderville First Nation Huron‐Wendat Huron‐Wendat Donnelly Barrister & Solicitor Centre for Social Innovation Williams Treaty First Nations Federal Agencies
Mr. Thomas Hoggarth
Ms. Denise Fell
Ms. Kitty Ma
Mr. David Zeit
Mr John Connolly
Mr John Connolly
‐‐‐‐
Provincial Agencies Mr. Jason Ryan
Ms. Jackie Burkart
Mr. Norbert Stanchly
Mr. Jeff Bateman
Mr. Mike Kim
Mr. Greg Sweeney
Mr. Jeff Edwards
Regional/Municipal Agencies Mr. Mike Hubble, P. Eng.
Mr. Paul Gee
Mr. Chris Leitch
Mr. Richard Holborn
Ms. Sharon Lingertat
Utilities/Other Agencies Mr. Andrew Smith
Ms. Ann Newman
Mr. Glen Thompson
Mr. Ken Gallen
Ms. Kimberly MacLellan
Mr. Graham Martin
Ms. Magdalena Sabat
First Nations
Chief Donna Big Canoe
Ms. Sheri Wilson
Chief Phyllis Williams
Councillor Ted Coppaway
Chief Kris Nahrgang
Ms. Rhonda Coppaway
Chief Roland Monague
Councillor Pam Crowe
Ms. Heather Levecque
Chief Sandra Moore
Councillor Lorne Paudash
Chief Sharon Stinson Henry
Chief Tracy Gauthier
Chief James Marsden
Ms. Heather Bastien
Chief Konrad Sioui
Mr. David Donnelly
Ms. Karry Sandy‐Mackenzie
Appendix B: Design and Construction Staging Plans

Highway 407 East, Brock Road Interchange

Transcription

Similar documents

Gauldin Flyer.indd - Retail Specialists

Yateem Legacy Shopping Center

Map of Site 1 – Lyndale Farmstead Park

zoning map - Town of Kaukauna

Coastal Highway from Tmn Perling to Horizon Hills is Opened!

sales gallery location map

the art of table setting

april golf auto sale rev5

VACANT LAND – 339 ACRES M/L State Highway 45/County

Hoover Dam Bypass: History in the Making