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HomeMy WebLinkAbout6.1. Presentation - Waterfront TO - 05.24.19May 24, 2019 TRCA Board of Directors Meeting: Port Lands Flood Protection Project Overview LANDS Canada ir'Ontario NTORONTO r David Kusturin, Chief Project Officer, Waterfront Toronto Kenneth Dion, Project Director, Port Lands Integration, Waterfront Toronto Overview Purpose of Presentation: Inform the Board for their future decision-making over next 4 years What is Waterfront Toronto What is the PLFP and TRCA's Role in PLFP Project Background PLFP is 23 Projects in 1 Environmental Management River Valley Design & Construction River Ecologies and Habitat Questions What is Waterfront Toronto? Waterfront Toronto is working to revitalize the lands by Lake Ontario, transforming past industrial sites into thriving neighbourhoods that support economic vitality and enhance quality of life. Our mandate comes from the three orders of government; our resources come from both public and private sources. As we work on behalf of Torontonians, Ontarians, and all Canadians, every decision we make is guided by our vision of one vibrant waterfront that belongs to everyone. Designated Waterfront Area i441,111,11 L 44 ®. West Outer Harbour i kl. is WATERFRONTomnto Nr, Creating parks & public spaces s Building sustainable communities i tll � I I ma ublic transit i iY � I y I� t �U �• �Cf Increasing affordable • r � - "ik �a•t Mi�W ova 01- y� Driving economic competitiveness a Reducing urban sprawl t t L, s_ ,.eyk rRS.tfr Nr, Creating parks & public spaces s Building sustainable communities i tll � I I ma ublic transit i iY � I y I� t �U �• �Cf Increasing affordable • r � - "ik �a•t Mi�W ova 01- y� Driving economic competitiveness What is the Port lands Flood Protection Project? Don Mouth Naturalization and Port Lands Flood Protection EA TRCA with Waterfront Toronto and the City of Toronto Objective: "Establish and sustain the form, features, and functions of a natural river mouth within the context of a revitalized City environment while providing flood protection up to the Regulatory Flood." Lower Don Lands (LDL) Class EA Waterfront Toronto with the City of Toronto and Toronto Transit Company Used the DMNP EA as baseline to determine footprint for naturalization and developable lands Identified location and type of roads, bridges, servicing and transit infrastructure required in LDL area. Due Diligence Port Lands Flood Protection and Enabling Infrastructure Due Diligence Study: 2015-2016 Merged the results of two EAs into a single project Confirmed costs, constructability considerations and schedule Cherry Street Lakefilling received tri -government funding in October 2016 Tri -government funding for the remainder of the project announced in June 2017 Roles of TRCA • Eligible Receipt —TRCA identified by Levels of Government in 2001 • DMNP EA - Lead and Co -Proponent with Waterfront Toronto, City of Toronto • Floodplain Regulator—Construction permits • Technical expertise - Water resource engineering, subsurface engineering / hydrogeology, ecological restoration and EA project management ' Monitoring - Environmental, ecological and archaeological • Potential future landowner/operator - components of the design • Annual EA Compliance Reporting ' Project Support to Waterfront Toronto throughout the Project implementation Project Background 00 Jgii, c _ip man w i .�*_ Looking east during construction of the Keating Channel in 1914. ■ ` }err 1� ` ?� .4�f L:' "'i'Y K 4•� � � ■ 411 r C�+' �°dF +y t ri earl i ' y � �'�� �� � in K � � y�d 9' � ai # ,�,• i r � . `� � � i !+' . � I .4 .+a e i � d �C"'� � „'� X95..•—fi IK _ y. i. r' �a��4 R i i� ` � Iry -P 111 .. � i ♦ ': Industrial uses like the oil storage tanks seen in this photo in the ilr 1920s have left a legacy of contamination in the Port Lands. x wn :N _ --- ;l,ST c+W..vxr 7" 7aae+ fi VOW 7 " 7-1 rX 7-1 Regulatory Flood — Future Conditions 3 -F ? I �jK.J lkf V d oma"" a , f ri r Ati fir_ - P 1 5 'F Flood Protection Design I L=7 Flood Remediation Design 4-f AL -r A �_ —.-�-- Don Hall yard W— o _ i r Exp Way P oVe Sod r S II ' Keating el Eas[ Marl St ea ont, r Precincl lnc[ � � PRem �� '� k_s urenvulo 'eatlng chainel i �` MCCI2d vilGers island d _ Dnric Toronto f A r, 11 ars.- ■ Y..i� 9� �C�.�i+'c ! Inner ♦♦ : Harbour °" -` a�' Media city m assn, oon never �. sj 1,n,"2ay n - ci I a .nmw.aa�v _ Yh( i_t nne' l ( r f 1 w 23 Projects in 1 PUP Coordination with Other Major Public Initiatives 1 Don Yard / Wilson Yard 1 u �II IIf VS�IIU© I Port Lands Hood Protection 3. East Harbour Inke Sha .' 4_Gardmar /lake Share � - �� �. MMM = b. &o=W'-mm FP 6. Undever Preciw1 & Feet Guff f 7 Enbridge Pipeline Relocation 9 8 Hydro .. p _ 9. TTC Relief Line 10_ Metroli Rail ntil O fSSRCI nw1 JDan 11. Conwell Byy pass Tunnel & Shafts — J 12. 3C Develapmem 'a 13. 6madvieW/Commissioners MGEA ��� , 3 14. Watedrant Sinmery Servicing ..w i �At � Master Plan /Land Plumping Station II :J11 •� \ 11 1�- J4 • -000 1�08kd191g'11g,P,dr-- .• _ •• 14 q_ 8 F 12 �:p 13 Fl \s Cvmt` s+r as . .8 O t aN _ ship Cha What are we building? Cherry Street Stormwater and Lakefllling i O Polson Slip Naturalization III 1 OFlood Protection - River Valley SII ODon Greenway (Spillway B Wetland) II I © Don Roadway Valley Wall Feature 'Dflp I OEast Harbour Flood Protectlon Land Form ae= OSediment and Debris Management Area © Flow Control Weirs �•r�� ;,_--_.___c ___- ___' _;�%� 1 OEastern Avenue Flood Protection I I OVilliers Island Grading I I _________•__ I ©__�____.___� ___ r © Keating Channel Modifications I p I Promontory Park South � r I River Park I Q ©Lake Share Road and Rall Bridge Modifications 1 1 O I OCherry Street Bridge North I I Commiuiolrers Slreal I O' Cherry Street Bridge South r ,ria r, I \ I OCommissioners Street Bridge Port Lands Flood Protection and ©I ' Did Cherry Street Bridge Demolition •--' Enabling Infrastructure Boundary F Municipal lnfrastruure Site Wide MuniInfrastructure Protection • © wit; ODon Roadway Parks s _ _ HydraOneOne Integration Bridges& Structures • i s –––– – – –– - - ---' – – _ – OCommissioners Street 1 – – and Municipal ©Roads Cherry Street Re -alignment • Infrastructure Full Vision Plan ake SM1ve GIVE East Keating Channel `\ Prom i" Pat k North Park leers Is,ai d 4it District as YYY��� PPF r. �yq�y5$ M `y r Qaa 1� o f9g9ya�y,����i1ly sr�__ oto, Promo Men w Polson Silo Is,.� a '• • - - £a1 xtinl �t '�i �i South Paver -- Poison � Precinct Prec nc[ noel V --� - Ship Cha Funded Project Areas I i Toronto Inner Harbour Don River Polson Precinct Don Rail Yard Lake Shore Boulevard East Keating channel Villiers St; Villiers McCleary Villiers Island Park �' q District Precinct w o Centre St 3 gg � O ¢ 0 s- ........ Media City "River Valle Basin s[ o �__�'' aolwn SC East yy� IY Don Greenway South River Precinct Ship channel I I OO j0 IOCM r Ir Three Streets for the Port lands A�p1+�..+tt�eX d _'•:t�A 4 L._ .. ._ ''T�v�^.'n Y. �- �9S "1 �' W meq � 1 _ 1 1 Keating Precinct 1 -,x rake Shore Boulevard fas- Z i Keating channel y i� 1 7p McCleary 1 1 Villiers Island Precinct py District ' 1 1 Park -_ r--- Commissioners Stireet `4 fFl —r-r���r;� Media s %\ RiwerVaUeyPark city — ♦Don Ri % % A I ' G reeway Palso9l. Precinct f SoLth River Precinct Three Bridges for the Port Lands Environmental Management Historical Site Use • Historical infilling • Crude Oil/Petroleum Refining and Storage • Explosives and Ammunition Manufacturing • Metal Treatment and Fabrication • Concrete and Cement Manufacturing Images from http://www.blogto.com/city/2012/02/what th e_po rt_la nds_used_to_look_like/ Contaminant Extent aAsl3m aw za aan,an �i 4.01. Total PHC(VgJg) Correlated LIF to Total PHC(Pglg) 6000 Dooa 1500 1 Is00 • Boring with analytical dsna • Boring with LIF data Peat Assessment former marshland of the Don River has left a legacy of peat deposits Peat Contour Map Assessing Risk No current environmental approval process in Ontario for a project of this nature Community -Based Risk Assessment allows us to: Identify and evaluate the risks to human health and the environment Develop effective measures to mitigate or remove those risks Develop a comprehensive strategy for treating and reusing soil within the project area (1.5M m3 to be excavated) Support the creation of the new landmasses 0!: River Valley Design Construction Overview Cutoff Wall Installation Multiple construction methods available: secant pile wall, slurry wall Specifications will included performance requirements during installation and post installation Also provides constructability benefits: minimizes dewatering and permits drier excavation Example Cross -Section Six Steps to Construction Step 1— Shallow Excavation Step 2 — Cut-off Wall Installation Step 3 — Deep Excavation Step 4 — Install Underdrain and Horizontal Barriers Step 5 — Install Clean Grading and River Finishes Step 6 — Connecting to the Lake 00 96 70 60 _ _ - -s - 46 "M 20 o.00 0-25 0150 U-75 1.00 1.25 1.50 1.75 2+00 2+: DISTANCE (METRES) 9 6ECTON CRO65 SECTION 6 -RIVER VALLEY STA 6.50 00 90 00 ]0 50 50 / \� 40 NUINPNBWE®XM'R 20 0.00 0.25 0.50 0.75 1+00 1.25 1.50 DISTANCE(MEfRES( B ..T.. %FAqVCRO65 6EGTIOH 6-RNER VALLEY.6-E0 4.75 2.00 2.2 Flood Protection Landform & Valley Wall Feature Wet SlopeC+e= 8m 3m 1.5m Plant Soil Protile Combi Wall - H Pile! Steel Sheet, No Treback Ica Management Shelt & Armour Stone FPL Dry Slope - No Dry Slope s or other ponetratinns 33m HR NI Qvorhe� i 6m Typ FG 79.30 W r r, , —78.00 i p � i L, Existing Grade \— Street Utility Corridor, To Be Designed Armour Stone L FPC_ With Restrictions - Low Hydraulic Conductivity Fill i i i IC Development Parcel lom 194m Service Road bm I �I EG (76.90) E I E>asting Property JFence _ -- ' — -' —�r�•-----------------_-- Existing HONI It derground bne lN onderground must be moved In order to place a ewalk or al building in this area. River Ecologies and Habitat Seasonal Water Fluctuations Influence on Plant Community Distribution 75 5 JapEP UPPER AVER,4GF ,an 74.2 74 LOWER IATRFMF Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Winter Spring Summer Fall Meadow Marsh Emergent Marsh Mean Lake Level Submergent Marsh Plant Communities - Section PFR Parkland I TRCA FLoodplain E i � �I m of al ti Upland Forest > Top of Bank Floodplain Forest 75.0 - Top of. Bank 1 � rt I Thicket Meadow Swamp Marsh 74.7-7575 75.0-75.5 Emergent Marsh 74.2-75.0 Submergent Marsh 72.5-74.2 IEmergentl Floodplain Elmergelnt I Marsh I Forest IMarsH 174.2-75.01.- 75.0- 714.2-7b.0 1 1 Top of Bank I I I I open Water River Ecology: Plant Communities and Habitat Submergent Marsh: Keating Channel 72.5-742 Precinct Lake Shore Boulevard East Emergent Marsh: Keating Channel 74,2-75,0 I , Meadow Marsh: 75-75-50 Villiers St Villiers McCleary Thicket Swamp: park 74.7 -7575 Z District T `m ° a Villiers Island Floodplain Forest; Promonmryu m Precinct Centre St 75.0 -TOB Park Upland Forest: Toronto 0 > TOB Inner Commissioners St Harbour ,- - Planted Armour Stone i r / ®\ .. ..,�.,� Meda Vernal Pool I \ _.__. ` _...__ Cit • Nest boxes � /// • Turtle Bank Habitat Don River ,-' 1 .River all= Basin St D Anchored Wood Habitat- ■ Nesting Platform --- Top of Ba nk(TO B) poison Si East j6eenw Polson South River Precinct Precinct shrp Channel O to IOOM Questions