THE CORPORATION OF THE TOWNSHIP OF CENTRE WELLINGTON CLASS - - PDF document

the corporation of the township of centre wellington
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THE CORPORATION OF THE TOWNSHIP OF CENTRE WELLINGTON CLASS - - PDF document

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


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SLIDE 1
  • ST. DAVID STREET BRIDGE

MEETING No. 2

THE CORPORATION OF THE TOWNSHIP OF CENTRE WELLINGTON (STRUCTURE No. 2-F)

OVER GRAND RIVER, FERGUS M.T.O. SITE No. 35-210 CLASS ENVIRONMENTAL ASSESSMENT

  • ST. DAVID STREET (HIGHWAY No. 6)

REHABILITATION

PUBLIC INFORMATION CENTRE

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SLIDE 2

THIS PROJECT PROVIDES AN OPPORTUNITY TO

IS DETERIORATING IN TERMS OF ITS STRUCTURAL INTEGRITY.

OPPORTUNITY STATEMENT

STRUCTURE 2-F, A SINGLE SPAN STRUCTURE THAT CROSSES

THE GRAND RIVER ON ST. DAVID STREET (HIGHWAY No. MAINTAIN AND IMPROVE THE CONNECTION ALONG THE

BY ADDRESSING THE BRIDGE'S ADVANCED STATE

OF DISREPAIR AND DEGENERATION. 6 CONNECTING LINK) IN THE FORMER TOWN OF FERGUS,

  • ST. DAVID STREET HWY No. 6 CONNECTING LINK
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SLIDE 3

MUNICIPAL CLASS EA PLANNING AND DESIGN PROCESS

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

IDENTIFY PROBLEM OR OPPORTUNITY 1 2 DISCRETIONARY PUBLIC CONSULTATION TO REVIEW PROBLEM OR OPPORTUNITY DETERMINE APPLICABILITY OF MASTER PLAN APPROACH (See Section A.2.7) 1 2 3 4 5 6 1 2 3 4 5 6 7 1 2 3 1 2 3 IDENTIFY ALTERNATIVE SOLUTIONS TO PROBLEM OR OPPORTUNITY SELECT SCHEDULE (APPENDIX I) INVENTORY NATURAL, SOCIAL, ECONOMIC ENVIRONMENT IDENTIFY IMPACT OF ALTERNATIVE SOLUTIONS ON THE ENVIRONMENT, AND MITIGATING MEASURES EVALUATE ALTERNATIVE SOLUTIONS: IDENTIFY RECOMMENDED SOLUTIONS CONSULT REVIEW AGENCIES AND PUBLIC re:PROBLEM OR OPPORTUNITY AND ALTERNATIVE SOLUTIONS SELECT PREFERRED SOLUTION REVIEW AND CONFIRM CHOICE OF SCHEDULE INDIVIDUAL E.A. SCHEDULE C SCHEDULE B NOTICE OF COMPLETION TO REVIEW AGENCIES & PUBLIC OPPORTUNITY FOR ORDER REQUEST TO MINISTER WITHIN 30 DAYS OF NOTIFICATION ORDER GRANTED, PROCEED WITH INDIVIDUAL E.A. OR ABANDON PROJECT IF NO ORDER MAY PROCEED SCHEDULE A/A+ APPROVED- MAY PROCEED IDENTIFY ALTERNATIVE DESIGN CONCEPTS FOR PREFERRED SOLUTION DETAIL INVENTORY OF NATURAL, SOCIAL AND ECONOMIC ENVIRONMENT IDENTIFY IMPACT OF ALTERNATIVE DESIGNS ON ENVIRONMENT, AND MITIGATING MEASURES EVALUATE ALTERNATIVE DESIGNS: IDENTIFY RECOMMENDED DESIGN CONSULT REVIEW AGENCIES & PREVIOUSLY INTERESTED & DIRECTLY AFFECTED PUBLIC SELECT PREFERRED DESIGN REVIEW ENVIRONMENTAL SIGNIFICANCE & CHOICE OF SCHEDULE PRELIMINARY FINALIZATION OF PREFERRED DESIGN COMPLETE ENVIRONMENTAL STUDY REPORT (ESR) ENVIRONMENTAL STUDY REPORT (ESR) PLACED ON PUBLIC RECORD NOTICE OF COMPLETION TO REVIEW AGENCIES AND PUBLIC COPY OF NOTICE OF COMPLETION TO MOE-EA BRANCH OPPORTUNITY TO REQUEST MINISTER WITHIN 30 DAYS OF NOTIFICATION TO REQUEST AN ORDER OPTIONAL FORMAL MEDIATION (See section A.2.8.2) DISCRETIONARY PUBLIC CONSULTATION TO REVIEW PREFERRED DESIGN ORDER GRANTED, PROCEED AS PER MINISTER'S DIRECTION OR ABANDON PROJECT MATTER REFERRED TO MEDIATION ORDER DENIED WITH OR WITHOUT MINISTER'S CONDITIONS COMPLETE CONTRACT DRAWINGS AND TENDER DOCUMENTS PROCEED TO CONSTRUCTION AND OPERATION MONITOR FOR ENVIRONMENTAL PROVISIONS AND COMMITMENTS INDICATES POSSIBLE EVENTS INDICATES MANDATORY EVENTS INDICATES PROBABLE EVENTS MANDATORY PUBLIC CONTACT POINTS (See Section A.3 Consultation) DECISION POINTS ON CHOICE OF SCHEDULE OPTIONAL PART II ORDER (See Section A.2.8)

*

NOTE:

SOLUTIONS ALTERNATIVE PROBLEM OR OPPORTUNITY

CONCEPTS FOR ALTERNATIVE DESIGN PREFERRED SOLUTION

ENVIRONMENTAL STUDY REPORT IMPLEMENTATION

* *, * * * *

PUBLIC MEETING DECEMBER 14th, 2016

PLANNING & DESIGN PROCESS MUNICIPAL CLASS EA FIGURE 1

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SLIDE 4
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SLIDE 5

DECK AND PART OF THE BUTTRESSES MAINTAINING ONLY THE COMPLETE REMOVAL OF CONCRETE DECK, GIRDERS, CANTILEVER

  • 3. SUPERSTRUCTURE REPLACEMENT AND CONVERSION TO

THE STRUCTURE INCLUDING EXPANSION JOINTS. COMPLETE DECK REPLACEMENT WITH REINFORCED CONCRETE DECK ON

  • 2. CONCRETE DECK REPLACEMENT - ON EXISTING GIRDERS

THE EXISTING GIRDERS MAINTAINING THE EXISTING CONFIGURATION OF CONDITION - EVENTUAL LOAD RESTRICTIONS AND CLOSURE NO ACTIONS WOULD BE TAKEN LEAVING THE STRUCTURE IN A DETERIORATING

  • 1. DO NOTHING

DESCRIPTION OF ALTERNATIVE SOLUTIONS

SEMI-INTEGRAL ABUTMENT

  • ABUTMENTS. THE ABUTMENTS WILL BE MODIFIED TO A SEMI-INTEGRAL

TYPE. DECK AND ABUTMENTS. COMPLETE REMOVAL OF CONCRETE DECK, GIRDERS, CANTILEVER

  • 4. REPLACE EXISTING STRUCTURE WITH CONCRETE

BOWSTRING STRUCTURE

PREFERRED ALTERNATIVE

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SLIDE 6

ANALYSIS/EVALUATION OF ALTERNATIVES

CRITERIA ALTERNATIVE 1 ALTERNATIVE 2

Do Nothing Concrete Deck Replacement

  • No change

TRANSPORTATION

Operational Safety

  • No change
  • Poor condition of existing bridge will eventually

Structural

  • Deck replacement on existing girder maintaining

require posting load limits the existing configuration Road Geometry Capacity Construction Impact

  • No construction, no immediate impacts
  • Approximately 7 to 9 months construction
  • Construction requires bridge closure
  • No change

NATURAL ENVIRONMENT

Vegetation, Fish Habitat and Wildlife

  • Construction impacts will be negligible with
  • No change, existing configuration meets

HYDRAULICS

Hydraulic Analysis current codes/standards

  • No change, existing configuration meets

current codes/standards

SOCIO-ECONOMIC IMPACT

Property Purchase Required

  • None
  • None

Impacts to Public Traffic and Businesses

  • Eventual load restrictions and closure will
  • Road closure during construction

restrict truck and business access

  • Access to businesses will be maintained but

restricted during construction

  • Increased noise pollution during construction

Heritage

  • Preliminary heritage screening assessment
  • Eventual closure to Highway No. 6 (connecting

has been completed proper mitigation Archaeological Assessment

  • No impacts anticipated

link)

  • Expansion joints with a 50 year service life
  • No change
  • No change
  • No change
  • No change
  • Preliminary heritage screening assessment

has been completed

  • No impacts anticipated

CONSTRUCTABILITY & COST

Utility Impacts

  • None
  • Bell relocation prior to construction is

Costs Long-Term Maintenance Costs

  • Monitoring and ongoing repairs including

deferred cost of rehabilitation or replacement

  • Rehabilitation of existing design features will

remain difficult to monitor

  • Does not meet today's standards for durability

required - will require minor short term road closures and safety

ALTERNATIVE 3

Superstructure Replacement and Conversion

  • No change
  • New girders and concrete deck with semi-

integral abutment with at least a 50 year service to Semi-Integral Abutment life

  • No change
  • None
  • Road closure during construction
  • Access to businesses will be maintained but

restricted during construction

  • Increased noise pollution during construction
  • Preliminary heritage screening assessment

has been completed

  • No impacts anticipated
  • New girders and deck will have a useful

service life of 50 years

  • Bell relocation prior to construction is

required - will require minor short term road closures

  • Approximately 7 to 9 months construction
  • Construction requires bridge closure
  • Construction impacts will be negligible with
  • No change, existing configuration meets

current codes/standards proper mitigation

  • No change

ALTERNATIVE 4

Replace Existing Structure with Concrete

  • No change
  • New girders and concrete deck with semi-

integral abutment with at least a 50 year service Bowstring Structure life

  • No change
  • Additional property may be required
  • Road closure during construction
  • Access to businesses will be maintained but

restricted during construction

  • Increased noise pollution during construction
  • Preliminary heritage screening assessment

has been completed

  • No impacts anticipated
  • Bell relocation prior to construction is

required - will require minor short term road closures

  • Approximately 11 to 12 months construction
  • Construction requires bridge closure
  • Construction impacts will be negligible with
  • No change, existing configuration meets

current codes/standards proper mitigation

  • No change

for wider abutments

  • No immediate cost

$2,366,000 $2,544,000 $3,500,000

  • New girders, deck and abutments will have a

useful service life of 50 years plus

PREFERRED ALTERNATIVE

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SLIDE 7
  • Comparable cost to Alternative 3

EVALUATION OF PROS AND CONS - STRUCTURE 2-F, ST. DAVID STEET

ALTERNATIVE PROS CONS

  • Low immediate cost

DO NOTHING

  • Does not address problem statement
  • Postpones major capital expenditure
  • Eventual load restrictions and closure to Highway
  • Nominal cost savings over alternative 3

CONCRETE DECK REPLACEMENT ON

  • Retains design detail that is not acceptable by
  • Semi-integral abutments enhance performance

SUPERSTRUCTURE REPLACEMENT AND

  • Comparable cost to Alternative 2

and durability of structure CONVERSION TO SEMI-INTEGRAL ABUTMENT

1 2 3

EXISTING GIRDERS

  • No. 6

Provincial funding today's standards for durability, safety and maintenance

  • Unknown issues that may arise during construction

REPLACE EXISTING STRUCTURE WITH

  • High cost

CONCRETE BOWSTRING STRUCTURE

4

  • Aesthetically pleasing
  • Narrower travel lanes on bridge to accommodate

arches, alternatively widen/replace substructure

  • 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
  • Provincially funded
  • Additional time for construction

PREFERRED ALTERNATIVE

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SLIDE 8

NOTES

No DATE

INITIAL REVISION

DRAWN BY: APPROVED BY: CHECKED BY: DATE: HORIZONTAL

NUMBER DRAWING

SCALES

VERTICAL PROJECT No CONTRACT No

TOWNSHIP OF CENTRE WELLINGTON

01

PRELIMINARY PRELIMINARY

PRELIMINARY

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SLIDE 9

PLAN

CURRENT / EXISTING SUPERSTRUCTURE REPLACEMENT - TECHNICALLY PREFERRED ALTERNATIVE

CROSS SECTION PLAN ELEVATION ELEVATION CROSS SECTION

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SLIDE 10

Township hopes to minimize the duration of construction. It is anticipated that the Through construction sequencing and the use of prefabricated components, the

How long will reconstruction of the bridge take?

Construction Mitigation

  • St. David Street bridge will be closed to traffic in early 2018 and re-open to traffic

by the end of September 2018. Grading of approach areas using bulldozers, excavators, dump trucks, graders and Reconstruction will generally include:

What activities will reconstruction of the bridge include?

soil compactors Removal of existing features using excavators, rock breakers, trucks, cranes, concrete breakers and asphalt milling machines Reconstruction of bridge using excavators, trucks, cranes, concrete pumps and concrete finishing machines Road construction and paving using excavators, graders, trucks and asphalt and concrete paving machines Reconstruction activities will cause noise impacts. Noise mitigation measures to be

Reconstruction Noise Mitigation

implemented during reconstruction of the bridge include: using construction equipment that is in good repair and complying with the noise emission standards outlined in MOECC guidelines limiting reconstruction activities to daytime hours where possible and adhering to municipal noise by-law requirements. Noise by-law exemptions may be required under unique circumstances maximizing the distance between the reconstruction staging areas and nearby receptors where possible Dust mitigation measures to be implemented during reconstruction include:

Dust Control

periodic watering or stabilization of disturbed and exposed soils sweeping and/or water flushing of asphalt accesses to construction zones using calcium chloride to suppress dust on gravel areas

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SLIDE 11
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NEXT STEPS

RESPOND TO COMMENTS/SUGGESTIONS FROM THE PUBLIC AND AGENCIES POST NOTICE OF COMPLETION AND PROJECT FILE ON PUBLIC RECORD FOR 30 CALENDAR DAY REVIEW - WINTER 2017 COMPLETE CONTRACT, DRAWINGS, AND TENDER DOCUMENTS

  • 2017

UTILITY RELOCATION - 2017 BRIDGE AND ROAD CONSTRUCTION - COMMENCEMENT JAN/FEB 2018

  • COMPLETION FALL 2018