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1 Tatham Engineering Reinbird Street Bridge Public Information Centre (PIC) Schedule ‘B’ Class EA April 17, 2019

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Page 1: Class EA R1 - Severn Street Bridge EA... · Public Information Centre (PIC) Schedule ‘B’ Class EA April 17, 2019. ... Identify alternative solutions & potential environmental

1Tatham Engineering 

Reinbird Street Bridge

Public Information Centre (PIC) S c h e d u l e   ‘ B ’   C l a s s   E A

April 17, 2019

Page 2: Class EA R1 - Severn Street Bridge EA... · Public Information Centre (PIC) Schedule ‘B’ Class EA April 17, 2019. ... Identify alternative solutions & potential environmental

2Tatham Engineering 

This Public Information Centre will:

Establish channels of communicationwith public & stakeholders

Detail the study area, study purpose& objective

Present the need & justification forthe study and issues to be resolved

Identify alternative solutions &potential environmental impacts

Identify a recommended solution forpublic review

Seek input & comments forconsideration in the selection of thefinal preferred solution

Welcome

Public & Stakeholders should:

Sign the registry

Review the presentation material

Ask questions of the Townshipand/or Consultant

Submit a comment sheet & indicatewhether or not you want to be keptinformed of the process

Page 3: Class EA R1 - Severn Street Bridge EA... · Public Information Centre (PIC) Schedule ‘B’ Class EA April 17, 2019. ... Identify alternative solutions & potential environmental

3Tatham Engineering 

The objective of the study is to:

Undertake a review of bridgereplacement alternatives & improvevehicular access to Reinbird Street

The purpose of the study is to:

Develop alternative solutions toimproving vehicular access

Identify the location, extent &sensitivity of affected environments

Assess the alternatives givenpotential environmental impacts

Identify a preferred solution

Establish measures to mitigateadverse impacts

Study Purpose & Study Area Municipal Class EA Process

The study follows the Schedule B  Class EA guidelines to include:

Phase 1 Phase 2

Includes opportunity for public input: PIC (today) 30-day review of final report &

findings

Following completion, the Township may proceed to implementation:

Phase 5

Page 4: Class EA R1 - Severn Street Bridge EA... · Public Information Centre (PIC) Schedule ‘B’ Class EA April 17, 2019. ... Identify alternative solutions & potential environmental

4Tatham Engineering 

We Are Here

Finish Here

Page 5: Class EA R1 - Severn Street Bridge EA... · Public Information Centre (PIC) Schedule ‘B’ Class EA April 17, 2019. ... Identify alternative solutions & potential environmental

5Tatham Engineering 

Existing conditions:

The existing Reinbird StreetBridge is a 5.5 metre (18’)wide, 15 metre (50’) spanbailey truss bridge installed in1994 and located over theColdwater River. The structurewas repurposed from atemporary structure crossingBayou Canal / WestshoreCrescent

Items identified during the bridge inspection for replacement in 1‐5 years include: Overall structure hand rails,

wingwalls, abutment walls,girder, bracing, coating

Full replacement recommended

Problem Identification

Page 6: Class EA R1 - Severn Street Bridge EA... · Public Information Centre (PIC) Schedule ‘B’ Class EA April 17, 2019. ... Identify alternative solutions & potential environmental

6Tatham Engineering 

Existing conditions:

Load limit prohibits:• Fire trucks• Fuel delivery• School buses• Garbage trucks• Construction

equipment• Access for Sewage

Pump Station

Hydraulics assessment: Isolated flooding impacts

at 5 year storm levels.

Low potential for ice ordebris blockage.

Problem Identification Is a 9 tonne load limit appropriate?

In 2018 an Evaluation of theexisting bridge wasundertaken based on 2017bridge inspection and siteinvestigations and measures.A load posting evaluation wascompleted in accordance withthe Canadian Highway BridgeDesign Code (CHBDC). Thetransom (floor beams) are thelimiting factor in load limitsfor the bridge.

Based on the evaluation, the 9tonne load limit is consideredappropriate for single axlevehicles. However, this can beincreased to 17 tonnes for a 2axle vehicle and 24 tonnes fora 3 axle vehicle (recognizingthat the effective load isdistributed over the vehicleaxles).

However, these loads remainrestrictive to heavy vehicles asthey typically exceed thepermitted limits.

Problem statement:

An improved and/oralternative means ofvehicular access isrequired to ReinbirdStreet to ensure safe andefficient access for allresidents, whilstminimizing impacts tothe surroundingenvironments.

BRIDGE LOAD LIMIT

SINGLE AXLE 9tTANDEM AXLE 17tTRI-AXLE 24t

Page 7: Class EA R1 - Severn Street Bridge EA... · Public Information Centre (PIC) Schedule ‘B’ Class EA April 17, 2019. ... Identify alternative solutions & potential environmental

7Tatham Engineering 

Key elements of Alternative 1

The load limit remains – onlycars & light trucks can legallycross the bridge.

Safety issues/concerns nototherwise addressed.

Full replacement of thebridge likely needed in 8+/-years

• Bridge abutmentswould be 100 yearsold

• Replace with “fullload” bridge

Do nothing is consideredwhen financial and/orenvironmental costs of otheralternatives outweigh thebenefits.

Alternative 1: Do Nothing

Page 8: Class EA R1 - Severn Street Bridge EA... · Public Information Centre (PIC) Schedule ‘B’ Class EA April 17, 2019. ... Identify alternative solutions & potential environmental

8Tatham Engineering 

Key elements of Alternative 2

The existing bridge would berehabilitated to remedy theload limit and support heavyvehicles.

The continued deteriorationof remaining elements maywarrant full replacement in10-30 years

A temporary access road orcrossing would be requiredduring construction.

The character of the bridgeremains unchanged (untilreplacement).

Alternative 2: Rehabilitate Bridge

Page 9: Class EA R1 - Severn Street Bridge EA... · Public Information Centre (PIC) Schedule ‘B’ Class EA April 17, 2019. ... Identify alternative solutions & potential environmental

9Tatham Engineering 

Key elements of Alternative 3

Bridge superstructure to bereplaced to support heavyvehicles.

Existing abutments to bemaintained to avoid works inthe Coldwater River.

A temporary access roadwould be required duringconstruction.

Alternative 3: Replace Bridge in Same Location

Page 10: Class EA R1 - Severn Street Bridge EA... · Public Information Centre (PIC) Schedule ‘B’ Class EA April 17, 2019. ... Identify alternative solutions & potential environmental

10Tatham Engineering 

Key elements of Alternative 4

Reinbird Road to be extended toconnect to Charles Street.

Some property & natural environmentimpacts will result.

Minor road realignment may be required.

The existing bridge would remain duringconstruction to serve traffic thus noneed for a detour.

New access point benefits residents,service & emergency vehicles.

Minimal work on existing propertiesrequired (driveways, etc.)

Alternative 4: Road Extension Along River

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11Tatham Engineering 

Key elements of Alternative 5

New access road to be constructed toWest Street to serve all traffic.

New access point benefits residents,service and emergency vehicles.

Some property & natural environmentalimpacts will result.

Minimal work on existing properties –driveway, water and sanitary services;

Alternative 5: Road Extension Between 2 & 4 Reinbird Street

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12Tatham Engineering 

Key elements of Alternative 6

New access road to beconstructed to West Street.

New access point benefitsresidents, service andemergency vehicles.

Property & naturalenvironment impacts willresult.

Disturbance to existinghomes include:

need new driveways disturb yards

New servicing to allproperties including newSPS connecting to newROW.

Existing SPS to bedecommissioned & replacedalong new road ORplacement of easement.

Alternative 6: New Road Along Rear of Reinbird Street Lots

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13Tatham Engineering 

Additional Options for Alternatives for 5 & 6:

Extend Reinbird Street northerly to access 4 & 6 River

Street

Extend road & new servicing down Uhthoff Trail,

connecting to Sturgeon Bay Road

The options including construction of a new road down

Uhthoff Trail were not assessed further as their construction

included connecting to West Street which met the needs of

the problem statement

Assessment of Alternatives

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14Tatham Engineering 

Evaluation of Alternatives 

Weighted scoring evaluation has been employed to reflect relative importance of

evaluation criteria & environments.

Evaluation based on impacts to:

• Physical environment

• Natural environment

• Social environment

• Cultural/heritage environment

• Economic environment

• Climate change

• Future community opportunities

• Review Agency

Page 15: Class EA R1 - Severn Street Bridge EA... · Public Information Centre (PIC) Schedule ‘B’ Class EA April 17, 2019. ... Identify alternative solutions & potential environmental

15Tatham Engineering 

Evaluation of Alternatives Continued

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Remainder of Study to:

Review/address stakeholders comments

Identify preferred alternative for Township review & endorsement

Complete the Phase 1 & 2 Report for public review period (30-day)

Prepare Notice of Study Completion

Before You Leave:

Have all of your questions been addressed?

Have you signed the registry?

Have you completed a comment sheet?

For Further Information:

Contact Information

Derek BurkeDirector of Public WorksTownship of Severn1024 Hurlwood LaneOrillia, ON L3V [email protected]

Brad Laking, P.Eng.Senior Engineer, Project ManagerTatham Engineering Limited50 Andrew Street South, Suite 100Orillia, ON L3V [email protected] x 2046