THE CORPORATION OF THE TOWNSHIP OF CENTRE WELLINGTON CLASS ENVIRONMENTAL ASSESSMENT ST. DAVID STREET BRIDGE (STRUCTURE No. 2-F) REHABILITATION ST. DAVID STREET (HIGHWAY No. 6) OVER GRAND RIVER, FERGUS M.T.O. SITE No. 35-210 PUBLIC INFORMATION CENTRE MEETING No. 2
OPPORTUNITY STATEMENT STRUCTURE 2-F, A SINGLE SPAN STRUCTURE THAT CROSSES THE GRAND RIVER ON ST. DAVID STREET (HIGHWAY No. 6 CONNECTING LINK) IN THE FORMER TOWN OF FERGUS, IS DETERIORATING IN TERMS OF ITS STRUCTURAL INTEGRITY. THIS PROJECT PROVIDES AN OPPORTUNITY TO MAINTAIN AND IMPROVE THE CONNECTION ALONG THE ST. DAVID STREET HWY No. 6 CONNECTING LINK BY ADDRESSING THE BRIDGE'S ADVANCED STATE OF DISREPAIR AND DEGENERATION.
MUNICIPAL CLASS EA PLANNING AND DESIGN PROCESS NOTE: This flow chart is to be read in conjunction with Part A of the Municipal Class EA PHASE 1 PHASE 2 PHASE 3 PHASE 4 PHASE 5 ALTERNATIVE DESIGN PROBLEM OR ALTERNATIVE ENVIRONMENTAL IMPLEMENTATION CONCEPTS FOR OPPORTUNITY SOLUTIONS STUDY REPORT PREFERRED SOLUTION 1 1 1 IDENTIFY ALTERNATIVE 1 COMPLETE IDENTIFY ALTERNATIVE 1 IDENTIFY PROBLEM DESIGN CONCEPTS APPROVED- COMPLETE CONTRACT ENVIRONMENTAL SOLUTIONS TO PROBLEM OR OPPORTUNITY FOR PREFERRED MAY PROCEED DRAWINGS AND STUDY REPORT (ESR) OR OPPORTUNITY SOLUTION TENDER DOCUMENTS 2 ENVIRONMENTAL 2 DETAIL INVENTORY 2 DISCRETIONARY PUBLIC STUDY REPORT (ESR) 2 OF NATURAL, SOCIAL SELECT SCHEDULE PLACED ON PROCEED TO SCHEDULE A/A+ AND ECONOMIC CONSULTATION TO REVIEW (APPENDIX I) PUBLIC RECORD CONSTRUCTION AND ENVIRONMENT PROBLEM OR OPPORTUNITY OPERATION NOTICE OF COMPLETION IF NO TO REVIEW AGENCIES *, ORDER AND PUBLIC 2 INVENTORY NATURAL, MAY PROCEED 3 IDENTIFY IMPACT OF DETERMINE APPLICABILITY SOCIAL, ECONOMIC ALTERNATIVE DESIGNS COPY OF OF MASTER PLAN APPROACH ENVIRONMENT 3 MONITOR FOR ON ENVIRONMENT, AND NOTICE OF COMPLETION (See Section A.2.7) ENVIRONMENTAL MITIGATING MEASURES TO MOE-EA BRANCH * ORDER PROVISIONS AND GRANTED, COMMITMENTS PROCEED WITH 3 IDENTIFY IMPACT OF INDIVIDUAL ALTERNATIVE SOLUTIONS E.A. 4 ON THE ENVIRONMENT, OR ABANDON EVALUATE ALTERNATIVE AND MITIGATING MEASURES PROJECT DESIGNS: IDENTIFY OPPORTUNITY TO 3 RECOMMENDED DESIGN REQUEST MINISTER WITHIN 30 DAYS OF NOTIFICATION * TO REQUEST AN ORDER OPPORTUNITY 4 * EVALUATE ALTERNATIVE FOR ORDER SOLUTIONS: IDENTIFY REQUEST TO 5 CONSULT REVIEW RECOMMENDED SOLUTIONS MINISTER AGENCIES & PREVIOUSLY WITHIN INDICATES POSSIBLE EVENTS INTERESTED & DIRECTLY 30 DAYS OF OPTIONAL AFFECTED PUBLIC NOTIFICATION INDICATES MANDATORY EVENTS FORMAL MEDIATION (See section A.2.8.2) INDICATES PROBABLE EVENTS 5 CONSULT REVIEW AGENCIES AND PUBLIC NOTICE OF MANDATORY PUBLIC CONTACT POINTS re:PROBLEM OR OPPORTUNITY COMPLETION (See Section A.3 Consultation) AND ALTERNATIVE SOLUTIONS TO REVIEW 6 AGENCIES & * DECISION POINTS ON CHOICE OF SCHEDULE ORDER SELECT PREFERRED PUBLIC * DISCRETIONARY GRANTED, ORDER DESIGN PUBLIC MATTER PROCEED DENIED OPTIONAL CONSULTATION REFERRED AS PER WITH OR TO REVIEW MINISTER'S TO WITHOUT 6 PREFERRED DIRECTION MEDIATION MINISTER'S * SCHEDULE B PART II ORDER (See Section A.2.8) SELECT PREFERRED DESIGN OR ABANDON CONDITIONS SOLUTION PROJECT PUBLIC MEETING DECEMBER 14th, 2016 REVIEW ENVIRONMENTAL SCHEDULE C SIGNIFICANCE & CHOICE OF SCHEDULE MUNICIPAL CLASS EA REVIEW AND CONFIRM INDIVIDUAL PLANNING & DESIGN PROCESS CHOICE OF SCHEDULE E.A. 7 PRELIMINARY FINALIZATION OF PREFERRED DESIGN FIGURE 1
DESCRIPTION OF ALTERNATIVE SOLUTIONS 1. DO NOTHING NO ACTIONS WOULD BE TAKEN LEAVING THE STRUCTURE IN A DETERIORATING CONDITION - EVENTUAL LOAD RESTRICTIONS AND CLOSURE 2. CONCRETE DECK REPLACEMENT - ON EXISTING GIRDERS COMPLETE DECK REPLACEMENT WITH REINFORCED CONCRETE DECK ON THE EXISTING GIRDERS MAINTAINING THE EXISTING CONFIGURATION OF THE STRUCTURE INCLUDING EXPANSION JOINTS. 3. SUPERSTRUCTURE REPLACEMENT AND CONVERSION TO SEMI-INTEGRAL ABUTMENT COMPLETE REMOVAL OF CONCRETE DECK, GIRDERS, CANTILEVER DECK AND PART OF THE BUTTRESSES MAINTAINING ONLY THE ABUTMENTS. THE ABUTMENTS WILL BE MODIFIED TO A SEMI-INTEGRAL TYPE. 4. REPLACE EXISTING STRUCTURE WITH CONCRETE BOWSTRING STRUCTURE COMPLETE REMOVAL OF CONCRETE DECK, GIRDERS, CANTILEVER DECK AND ABUTMENTS. PREFERRED ALTERNATIVE
ANALYSIS/EVALUATION OF ALTERNATIVES CRITERIA ALTERNATIVE 1 ALTERNATIVE 2 ALTERNATIVE 3 ALTERNATIVE 4 Do Nothing Concrete Deck Replacement Superstructure Replacement and Conversion Replace Existing Structure with Concrete to Semi-Integral Abutment Bowstring Structure TRANSPORTATION Operational Safety - No change - No change - No change - No change Structural - Poor condition of existing bridge will eventually - Deck replacement on existing girder maintaining - New girders and concrete deck with semi- - New girders and concrete deck with semi- require posting load limits the existing configuration integral abutment with at least a 50 year service integral abutment with at least a 50 year service life life - Eventual closure to Highway No. 6 (connecting - Expansion joints with a 50 year service life link) Road Geometry - No change - No change - No change - No change Capacity - No change - No change - No change - No change Construction Impact - No construction, no immediate impacts - Approximately 7 to 9 months construction - Approximately 7 to 9 months construction - Approximately 11 to 12 months construction - Construction requires bridge closure - Construction requires bridge closure - Construction requires bridge closure NATURAL ENVIRONMENT - Construction impacts will be negligible with - Construction impacts will be negligible with - Construction impacts will be negligible with Vegetation, Fish Habitat and Wildlife - No change proper mitigation proper mitigation proper mitigation HYDRAULICS Hydraulic Analysis - No change, existing configuration meets - No change, existing configuration meets - No change, existing configuration meets - No change, existing configuration meets current codes/standards current codes/standards current codes/standards current codes/standards SOCIO-ECONOMIC IMPACT Property Purchase Required - None - None - None - Additional property may be required for wider abutments Impacts to Public Traffic and Businesses - Eventual load restrictions and closure will - Road closure during construction - Road closure during construction - Road closure during construction restrict truck and business access - Access to businesses will be maintained but - Access to businesses will be maintained but - Access to businesses will be maintained but restricted during construction restricted during construction restricted during construction - Increased noise pollution during construction - Increased noise pollution during construction - Increased noise pollution during construction - Preliminary heritage screening assessment - Preliminary heritage screening assessment Heritage - Preliminary heritage screening assessment - Preliminary heritage screening assessment has been completed has been completed has been completed has been completed - No impacts anticipated - No impacts anticipated Archaeological Assessment - No impacts anticipated - No impacts anticipated CONSTRUCTABILITY & COST Utility Impacts - None - Bell relocation prior to construction is - Bell relocation prior to construction is - Bell relocation prior to construction is required - will require minor short term road required - will require minor short term road required - will require minor short term road closures closures closures Costs - No immediate cost $2,366,000 $2,544,000 $3,500,000 - New girders and deck will have a useful - New girders, deck and abutments will have a Long-Term Maintenance Costs - Monitoring and ongoing repairs including - Rehabilitation of existing design features will service life of 50 years useful service life of 50 years plus deferred cost of rehabilitation or replacement remain difficult to monitor - Does not meet today's standards for durability and safety PREFERRED ALTERNATIVE
EVALUATION OF PROS AND CONS - STRUCTURE 2-F, ST. DAVID STEET ALTERNATIVE PROS CONS DO NOTHING - Low immediate cost - Does not address problem statement - Postpones major capital expenditure 1 - Eventual load restrictions and closure to Highway No. 6 - Retains design detail that is not acceptable by CONCRETE DECK REPLACEMENT ON - Nominal cost savings over alternative 3 today's standards for durability, safety and EXISTING GIRDERS maintenance 2 - Comparable cost to Alternative 3 - Unknown issues that may arise during construction SUPERSTRUCTURE REPLACEMENT AND - Semi-integral abutments enhance performance - Comparable cost to Alternative 2 - Provincially funded CONVERSION TO SEMI-INTEGRAL and durability of structure 3 ABUTMENT Provincial funding REPLACE EXISTING STRUCTURE WITH - Aesthetically pleasing - High cost - Additional time for construction CONCRETE BOWSTRING STRUCTURE - Narrower travel lanes on bridge to accommodate arches, alternatively widen/replace substructure 4 - Eliminates 1 sidewalk limiting pedestrian access - Visual issues from entrances close to bridge (diminished sight lines) - Higher maintenance cost and restricted access - No provincial funding PREFERRED ALTERNATIVE
PRELIMINARY PRELIMINARY PRELIMINARY SCALES NOTES TOWNSHIP OF CENTRE WELLINGTON CONTRACT No PROJECT No HORIZONTAL VERTICAL DRAWN BY: CHECKED BY: DRAWING 01 APPROVED BY: NUMBER No DATE REVISION INITIAL DATE:
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