Royal Rouge Trail Erosion Control Project - Toronto and Region ...

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30 to 32 Royal Rouge Trail Evaluation of Remedial Alternative Options “Do Nothing Scenario” Mandatory component of the Class EA process to demonstrate that remedial works are justified If no remedial works are undertaken for Royal Rouge Trail: ● Slope will eventually stabilize to a stable inclination ● Not necessarily at LTSSC as defined by FS = 1.5, but by an inclination defined by a lower FS ● Pools, sheds, and a significant portion of tableland are within the erosion hazard limit Terraprobe Ltd. • Pros “Do Nothing” Scenario Pros • Very low cost • Very low effort • No construction impacts to slope or vegetation • Cons • Estimated loss of tableland, loss of use, risk to structures • Loss of vegetation / habitat in areas of failure or slumping • Unknown timeframe Terraprobe Ltd. “Do Nothing” Scenario – Typical Section “Do Nothing” Scenario – Typical Section Terraprobe Ltd. 7
Remediation Options • Site divided into two sections • Site “A” – from #30 to #40 Royal Rouge Trail • Site “B” – from #42 to #48 Royal Rouge Trail • Two preliminary concepts for each section Site A – Preliminary Concept 1 • Intense Re-Vegetation • No structures at risk in Site A – only portions of tableland at risk • Increased planting and / or seeding • Could involve placement of perforated cellular confinement system – topsoil & vegetation • Other options: live staking, bio-fascines • Remove all debris from slope face prior to re- vegetating • Some long term loss of tableland is possible Terraprobe Ltd. Terraprobe Ltd. Site A – Plan of Preliminary Concept 1 Site A – Plan of Preliminary Concept 1 Terraprobe Ltd. Terraprobe Ltd. Site A – Preliminary Concept 2 Site A – Plan of Preliminary Concept 2 • Slope Trimming & Intense Re-Vegetation • Trim the upper, over-steepened areas to a more stable inclination – Use FS of 1.25 – generally acceptable engineering FS for slopes to establish more stable trimmed inclination – More stable inclination of 1.3 H : 1 V • Intensely re-vegetate areas of trimming • Intensely re-vegetate other areas on the upper slope area that have less-dense or no vegetative cover • Little long term loss of tableland is anticipated Terraprobe Ltd. Terraprobe Ltd. 8
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Royal Rouge Trail Erosion Control P
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Executive Summary Toronto and Regio
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5.1.2 Biological Environment.......
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1.0 INTRODUCTION Toronto and Region
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Almost twenty years of experience h
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Canadensis), Eastern white pine (Pi
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Figure 7. Active erosion behind Nos
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1.5 Rationale for Undertaking In 20
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The results of the adoption of the
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danger to the existing dwelling, so
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A Rouge Watershed Task Force was fo
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Toronto Transit Commission (TTC) we
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were involved in long range exchang
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four of which are interrupted by th
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Three sites of potential importance
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Conduct Archaeological Exploration
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The primary purpose of the Stage 3
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2.4.3 Corvese Site (AKGs-046) The C
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during the Stage 4 excavation, whic
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Toronto Field Naturalists Toronto O
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20-Oct-09 6:00 AM 10 Ozone (O3) 20-
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L4 Generally secure; may be a conse
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Flora Species of Concern Rouge Vall
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Fauna Species of Concern Rouge Rive
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Table 8. Bird Species observed with
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Figure 17. General area of Rouge Ri
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5) Six Nations of the Grand River T
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42 14 3 5 44 14 6 9 46 14 9 11 48 1
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2. Concept 2 - Extended Retaining W
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As this option does not address, re
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Figure 21. Proposed Preliminary Con
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Table 13 provides a comparison of t
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5.0 ENVIRONMENTAL SCREENING 5.1 Det
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Rating of Potential Effects Screeni
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Habitat Linkages or Corridors The p
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Existing Infrastructure, Support Se
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Comment forms were distributed by T
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the options presented, to select th
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Government of Canada. Committee on
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APPENDIX A Criteria & Implementatio
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APPENDIX C Design Drawings of the P
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28 SCARBOROUGH MIRROR | Friday, Mar
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onserRvaoon for The Living City 1 E
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onserRvaNiiOn for The Living City 1
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Patricia Newland/MTRCA 04/29/2009 0
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onserRvaoon for The Living City 1 E
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onserRvaNfiOn for The Living City 1
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[attachment "TALL PINES_CLC Map.pdf
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onservaNuon for The Living City 1 E
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If you have any questions or would
Page 118 and 119: If you have any questions or would
Page 120 and 121: onservaoon for The Living City 1 Ea
Page 128 and 129: This document has been prepared exc
Page 130 and 131: emedial works are required to provi
Page 132 and 133: • Remedial measures shall be desi
Page 134 and 135: TRCA remedial erosion control works
Page 136 and 137: The following is an outline of the
Page 138 and 139: 10 CLC Information Package Toronto
Page 146 and 147: Christopher M. Reid Barrister & Sol
Page 148 and 149: 3 factors. These divisions into new
Page 150 and 151: communities to gather evidence of t
Page 152 and 153: The Williams Treaties of 1923 Once
Page 154 and 155: 9 The duty of the Crown to consult
Page 156: n CON{CLTJSION fhe commlrnity.ol-Ka
Page 159 and 160: 28 SCARBOROUGH MIRROR | Friday, Mar
Page 161 and 162: TORONTO AND REGION CONSER' ROYAL RO
Page 163 and 164: Step 1: Notify Public • “Notice
Page 165 and 166: Geology of the Area BH1 BH2 BH3 Ter
Page 167: 48 to 44 Royal Rouge Trail 42 Royal
Page 171 and 172: Site B - Preliminary Concept 1 Typi
Page 173 and 174: Site B - Preliminary Concept 2 Typi
Page 175 and 176: CFN 39382.1 B3-33-2 MINUTES ROYAL R
Page 177 and 178: CFN 39382.1 B3-33-2 ‣ Mike Tanos
Page 179 and 180: ‣ JB & MM explain further about t
Page 188 and 189: TORONTO AND REGION CONSERVATION AUT
Page 194 and 195: danielle giggie 06/30/2009 12:42 A
Page 196: Thank you kindly, Kyle Reyes Enviro
Page 200 and 201: find attached the questionnaire in
Page 202 and 203: NOTICE OF PUBLIC MEETING ROYAL ROUG
Page 204 and 205: Lindsay Prihoda/TRCA 11/25/2009 03:
Page 209 and 210: Outline of Work Subsurface and Slop
Page 211 and 212: Potential Impact Site A - Evaluatio
Page 213 and 214: Example of a Vegetated SierraScape
Page 215 and 216: Site Access Points Between #32 & #3
Page 217 and 218: CFN 38392 B3-33-2 MINUTES CLC Meeti
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CFN 38392 B3-33-2 crest will be bey
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CFN 38392 B3-33-2 • Attendee inqu
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CFN 38392 B3-33-2 ‣ JB explains t
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deborag@rogers.com 02/12/2010 10:11
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TORONTO AND REGION CONSERVATION AUT
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17 th century Seneca Village 19 th
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CFN 38392 B3-33-2 MINUTES Meeting w
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CFN 38392 B3-33-2 and the Archaeolo
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CFN 38392 B3-33-2 • Attendee inqu
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CFN 38392 B3-33-2 Investigation 3.
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Moranne McDonnell/MTRCA 06/28/2010
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Cell : +1 (416) 917-8315 ADVS korah
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approvals needed to commence constr
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Toronto and Region Conservation Aut
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We are currently in the process of
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Envirolok Retaining Wall Systems En
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CFN 38392 B3-33-2 the property at #
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CFN 38392 B3-33-2 approximately 1 m
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NOTICE OF FILING 30 - 48 ROYAL ROUG
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Ministry of Tourism and Culture Min
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"Susan Hughes" 06/29/2011 02:58 PM
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"Susan Hughes" 06/14/2011 12:49 P
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Hi Janice I will put it back on the
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