Construction Method Statement CRMMS014 Warrington Cenotaph

Document Authoriser: Mike Carter Uncontrolled when printed or downloaded Date of Issue: 23/01/2017 Page 1 of 3 Version: 1.0 A Balfour Beatty Document

Construction Method Statement Details

Project Name: Warrington Cenotaph

Project Number: CRMMS014

Principal Contractor: Balfour Beatty Civil Engineering

Responsible Contractor: Balfour Beatty Civil Engineering

Programme Dates: Start: January 2019 Finish: November 2019

DOCUMENT APPROVAL

Prepared By: Name: Daniel Reynolds

Title: Section Engineer

Signed: D. Reynolds

Appraised By: Name: Adam Liu

Title: Sub Agent

Signed:

Approved By Warrington Borough Council: Name:

Title:

Signed:

Date:

REVISION STATUS DETAILS

Rev No Date Description

001 December 2018 Prepared to Discharge Planning Condition 3 (App No. 2018/32535)

Construction Method Statement CRMMS014 Warrington Cenotaph

Document Authoriser: Mike Carter Uncontrolled when printed or downloaded Date of Issue: 23/01/2017 Page 2 of 3 Version: 1.0 A Balfour Beatty Document

Introduction The Project comprises strengthening of the failing embankment of the River Mersey with a sheet pile retaining wall. The Cenotaph monument will be deconstructed and removed to storage to create space for plant to operate on site, and after a series of off-site repair works the Cenotaph monument will be returned to site and reconstructed. Landscaping and lighting improvements will be provided as part of the works. The below Construction Method Statement is to be read in conjunction with the ‘Cenotaph Target Cost Programme_Rev8.0’ and sketches ‘Warrington Cenotaph TM – Phase 1 and 2’, attached.

Construction Method Statement Phase 1 – Site Clearance and Deconstruction Initial mobilisation will begin in early January 2019, with establishment of the site compound and welfare off Wharf Street. The first construction activity will be to create a vehicular access to the site, existing flags and kerbs will be removed from the footpath and we will excavate to a depth of 280mm below the existing ground level. A concrete slab will then be poured which will act as protection for the underground services located in the footpath (electric cables), and a ramp for vehicles to gain access to the site. Site clearance will then commence with removal of the bollards and chain links from around the front grassed areas, the low stone walls to the front of the Cenotaph will then be dismantled, catalogued and removed to the Warrington Borough Council storage depot at Sandy Lane. The 1st stage of earthworks will then commence, the central tarmac footpath and surrounding grassed areas will be excavated to a depth of 650mm below the existing ground level and stoned up with 6F5 granular material to provide a crane mat which will be used for the dismantling of the Cenotaph monument. An area of contaminated ground to the front left of the Cenotaph identified during the Site Investigation will also be excavated and removed from site at this stage; again the excavation will be backfilled with 6F5 granular material. A mobile crane (approx. 55T) will be brought to site under weekend TM; the main obelisk will be dismantled, protected and removed to the Warrington Borough Council storage depot at Sandy Lane. Following that, a telescopic handler and lifting device will be brought to site to dismantle the remainder of the high stone walls and plaques to the rear of the Cenotaph; they will also be catalogued and removed to the Warrington Borough Council storage depot at Sandy Lane. The 2nd stage of earthworks will then commence, which involves creating a piling mat for the crawler crane which will be used to install the sheet piles to the river embankment. An area through the centre of site will be excavated to a depth of 1000mm below the existing ground level and stoned up with 6F5 granular material. Phase 2 – Retaining Wall Installation A crawler crane (approx. 120T) will be brought to site under a weekend TM closure to install a sheet pile retaining wall to the river embankment. Sheet pile installation will commence from the existing clutch on the Warrington New Bridge abutment, round to the tie-in point past the failing embankment. Spud piles and piling gates will be required to ensure the correct alignment of the sheet pile retaining wall is maintained. Following completion of the sheet piling and removal of the temporary works, the crawler crane will be removed from site, again under a weekend TM closure.

Construction Method Statement CRMMS014 Warrington Cenotaph

Document Authoriser: Mike Carter Uncontrolled when printed or downloaded Date of Issue: 23/01/2017 Page 3 of 3 Version: 1.0 A Balfour Beatty Document

The 3rd stage of earthworks will then commence, which involves backfilling behind the sheet pile retaining wall with 6B and 6F5 granular material to create a new embankment to support the Cenotaph monument. Following this a reinforced concrete capping beam is to be constructed to tie-in with the existing sheet pile retaining wall. A proprietary falsework system will be installed on the river face of the new sheet pile wall to support formwork, reinforcement and concrete. Following a period of curing this will be dismantled and removed from site. Phase 3 – Off-Site Repairs (If Required) Prior to, and during the dismantling of the walls, plaques and Cenotaph monument the stonework will be catalogued and examined to identify any pre-existing damage. A schedule of repairs will be agreed with Warrington Borough Council and any repairs required will be carried out while the stonework is off-site during installation of the sheet pile retaining wall. Phase 4 – Reconstruction Following completion of the reinforced concrete capping beam the 4th stage of earthworks will commence. This will involve removal of the piling mat used for the crawler crane and excavation for the new foundations for the walls, plaques and Cenotaph monument, as well as excavation to formation level and importing of sub-base for the higher level paving. The installation of drainage and ducting systems will then commence which includes new catchpits, gullies, pipework and a tideflex outfall valve through the new sheet pile retaining wall. Fixing of reinforcement and placement of concrete will follow for the new foundations for the walls, plaques and Cenotaph monument, prior to the stonework being returned to site from the Warrington Borough Council storage depot at Sandy Lane. The walls, plaques and Cenotaph monument will be reconstructed in the reverse order of which they were deconstructed. A telescopic handler and lifting device will be brought to site to reconstruct the high stone walls and plaques to the rear of the Cenotaph, before a mobile crane (approx. 55T) is brought back to site, again under weekend TM to reconstruct the main obelisk. Finally, the low stone walls to the front of the Cenotaph will be reconstructed. The 5th and final stage of earthworks will then commence, which involves removal of the crane mat used for the dismantling and reconstruction of the Cenotaph monument, as well as excavation to formation level and importing of sub-base for the lower level paving and coloured surfacing. Hard landscaping will follow, firstly with the installation of reconstituted kerbs and sandstone paving to the higher level around the Cenotaph monument, followed by the installation of reconstituted kerbs, granite paving, lighting and street furniture to the ramps and lower level. The road kerbs will be reinstalled and the coloured surfacing to the perimeter of the site laid before the soft landscaping works inclusive of topsoiling, turfing and planting are carried out. Finally, the site compound and welfare off Wharf Street will be demobilised in early November 2019.

Activity ID Activity Name OriginalDuration

Start Finish TotalFloat

Cenotaph Target Cost Programme_Rev8.0Cenotaph Target Cost Programme_Rev8.0 304 20-Aug-18 A 10-Nov-19 0

KEY MILESTONESKEY MILESTONES 225 07-Dec-18 10-Nov-19 0

KM_1020 Award Stage 4 Contract - Star ng Date 0 07-Dec-18 0KM_1050 Onsite Period (Calendar 5 x 8hrs No Hols) 200 07-Jan-19 11-Oct-19 0KM_1040 Access Date 0 07-Jan-19* 0KM_1030 Contractor's Start on Site 0 07-Jan-19 0KM_1110 Hold Point to Review Remaining Works to Comple on (Date TBC with WBC) 0 02-Sep-19* 49KM_1070 Cenotaph Avai lable for bringing back into use for the Ceremony 0 11-Oct-19 0KM_1060 Planned Comple on 0 11-Oct-19 0KM_1080 Contractor's Terminal Float 20 14-Oct-19 08-Nov-19 0KM_1090 Comple on Date 0 08-Nov-19* 0KM_1100 REMEMBRANCE DAY 0 10-Nov-19* 0

STAGE 3: PRE-CONSTRUCTIONSTAGE 3: PRE-CONSTRUCTION 179 20-Aug-18 A 15-May-19 92

DesignDesign 104 20-Aug-18 A 25-Jan-19 33

Planning ConditionsPlanning Conditions 104 20-Aug-18 A 25-Jan-19 33

Balfour Beatty/Stone MasonBalfour Beatty/Stone Mason 104 20-Aug-18 A 25-Jan-19 33DES_1010Close Out Planning Condi ons 30 20-Aug-18 A 21-Dec-18 23DES_1020Planning Condi ons Acceptance Period 25 24-Dec-18 25-Jan-19 33

Target CostTarget Cost 0 07-Dec-18 07-Dec-18 0

TC _1130 Award Stage 4 Contract - WBC 0 07-Dec-18* 0ProcurementProcurement 100 10-Dec-18 15-May-19 92

SubcontractorsSubcontractors 15 10-Dec-18 11-Jan-19 18

Civils PackageCivils Package 10 10-Dec-18 21-Dec-18 0PR_1140 Finalise Contracts & Place Order With Contractor 10 10-Dec-18* 21-Dec-18 0PR_1160 Lead Time For Construc on Works 10 10-Dec-18 21-Dec-18 0

Stone MasonStone Mason 15 10-Dec-18 11-Jan-19 18PR_1120 Finalise Contracts & Place Order With Stone Mason 10 10-Dec-18* 21-Dec-18 15PR_1130 Lead TIme Preconstruc on Works 10 10-Dec-18 21-Dec-18 23PR_1150 Lead Time For Construc on Works 15 10-Dec-18 11-Jan-19 15

MaterialsMaterials 90 07-Jan-19 15-May-19 92

PR_1170 Procurement Of Materials 30 07-Jan-19 15-Feb-19 78PR_1180 Lead Time - Yorkstone Paving 60 18-Feb-19 15-May-19 90PR_1190 Lead Time- Marshalls Paving 40 18-Feb-19 12-Apr-19 78PR_1200 Lead Time - Street Furniture 40 18-Feb-19 12-Apr-19 112

STAGE 4: CONSTRUCTIONSTAGE 4: CONSTRUCTION 205 10-Dec-18 11-Oct-19 0

Documentation & MobilisationDocumentation & Mobilisation 10 10-Dec-18 21-Dec-18 0

CON_1000 Balfour Bea y Mobi lisa on Period 10 10-Dec-18 21-Dec-18 0Site Clearance & DeconstructionSite Clearance & Deconstruction 50 07-Jan-19 15-Mar-19 0

CON_1010 Install Welfare Cabin / Store 2 07-Jan-19 08-Jan-19 0CON_1030 Remove Kerbs, Stone & Form Entrance 5 07-Jan-19 11-Jan-19 0CON_1050 Deconstruct bollards and low walls 5 14-Jan-19 18-Jan-19 0CON_1060 Site Clearance (Bollards, Paving, Street Furniture) 5 21-Jan-19 25-Jan-19 0CON_1070 Earthworks Stage 1 - Remove Contamina on & Form Crane Pla orm (Off Peak) 5 28-Jan-19 01-Feb-19 0CON_1100 Scaffold Access to Exis ng Sheet Pile Wall 5 04-Feb-19 08-Feb-19 25CON_1080 Deconstruct Plaques, Walls & Cenotaph 20 04-Feb-19 01-Mar-19 0CON_1090 Deconstruct TRA 5 04-Mar-19 08-Mar-19 0CON_1120 Earthworks Stage 2 - Construct Crane Pla orm For Piling 5 11-Mar-19 15-Mar-19 0

Retaining WallRetaining Wall 70 28-Jan-19 08-May-19 0

CON_1020 Install Pollu on Boom to R iver 2 28-Jan-19 29-Jan-19 33CON_1130 Piled Wall to R iver 15 18-Mar-19 05-Apr-19 0CON_1160 Piling TRA 5 08-Apr-19 12-Apr-19 5CON_1360 Earthworks Stage 3 - Backfill Sheet Pile Wall 10 08-Apr-19 23-Apr-19 0CON_1170 Construct Capping Beam to Sheet Piled Wa ll 10 24-Apr-19 08-May-19 0

Off Site Repairs (if required)Off Site Repairs (if required) 50 11-Mar-19 22-May-19 10

CON_1110 Compile Schedule Of Stone Repairs 5 11-Mar-19 15-Mar-19 10CON_1140 Agree & Approve Stone Repa irs 10 18-Mar-19 29-Mar-19 10

Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec2019

Cenotaph Target Cost Programme_Rev8.0

KEY MILESTONES

Award Stage 4 Contract - Star ng DateOnsite Period (Calendar 5 x 8hrs No Hols)

Access DateContractor's Start on Site

Hold Point to Review Remaining Works to Comple on (Date TBC with WBC)Cenotaph Avai lable for bringing back into use for the CeremonyPlanned Comple on

Contractor's Terminal FloatComple on DateREMEMBRANCE DAY

STAGE 3: PRE-CONSTRUCTION

Design

Planning Condi ons

Balfour Bea y/Stone MasonClose Out Planning Condi ons

Planning Condi ons Acceptance PeriodTarget Cost

Award Stage 4 Contract - WBCProcurement

Subcontractors

Civils PackageFinalise Contracts & Place Order With ContractorLead Time For Construc on Works

Stone MasonFinalise Contracts & Place Order With Stone MasonLead TIme Preconstruc on Works

Lead Time For Construc on WorksMaterials

Procurement Of MaterialsLead Time - Yorkstone Paving

Lead Time- Marshalls PavingLead Time - Street Furniture

STAGE 4: CONSTRUCTION

Documenta on & Mobilisa on

Balfour Bea y Mobi lisa on PeriodSite Clearance & Deconstruc on

Install Welfare Cabin / StoreRemove Kerbs, Stone & Form Entrance

Deconstruct bollards and low wallsSite Clearance (B ollards, Paving, Street Furniture)

Earthworks Stage 1 - Remove Contamina on & Form Crane Pla orm (Off Peak)Scaffold Access to Exis ng Sheet Pile Wall

Deconstruct Plaques, Walls & CenotaphDeconstruct TRA

Earthw orks Stage 2 - Construct Crane Pla orm For PilingReta ining Wall

Install Pollu on Boom to R iverPiled Wall to R iver

Piling TRAEarthworks Stage 3 - Backfill Sheet Pile Wall

Construct Capping Beam to Sheet Piled WallOff Site Repairs (if required)

Compile Schedule Of Stone RepairsAgree & Approve Stone Repairs

CRMM0444_TC_Rev8Cenotaph Target Cost Programme_Rev8.0

Actual Work

Remaining Work

Critical Remaining Work

Milestone

Remaining Level of Effort

Summary

Cenotaph Target Cost Programme_Rev8.0Data Date 30-Nov-18

Page No. 1 of 2Print Date & Time:- 03-Dec-18 ~ 14:40

Activity ID Activity Name OriginalDuration

Start Finish TotalFloat

CON_1150 Procure / Call Off Stone 15 01-Apr-19 23-Apr-19 10CON_1180 Dress Replacement Stone 10 24-Apr-19 08-May-19 10CON_1200 Replacem ent Stone TRA 10 09-May-19 22-May-19 10

ReconstructionReconstruction 110 09-May-19 11-Oct-19 0

CON_1190 Earthworks Stage 4 - Remove Crane Piling / Excavate Founda ons & Remove Paving 5 09-May-19 15-May-19 0CON_1220 Install Drainage, Gul lies, Catchpits & Ou alls 10 16-May-19 30-May-19 5CON_1210 Construct Founda ons 12 21-May-19 06-Jun-19 0CON_1240 Ducts & Chambers 3 31-May-19 04-Jun-19 32CON_1230 Reconstruct Plaques, Walls & Cenotaph 60 07-Jun-19 30-Aug-19 0CON_1250 Stage 5 Earthworks - Remove Crane Pla orm , Dig & Sub Base For Kerbs & Paving 15 19-Jul-19 08-Aug-19 0CON_1260 Install Conserva on Kerbs 5 07-Aug-19 13-Aug-19 0CON_1270 Install Sandstone & Recons tuted Paving 15 14-Aug-19 04-Sep-19 0CON_1280 Reconstruct Plaques, Walls & Cenotaph TRA 10 02-Sep-19 13-Sep-19 0CON_1290 Electrical Works To Ligh ng 4 05-Sep-19 10-Sep-19 0CON_1300 Remove Cabins & Boarding 3 11-Sep-19 13-Sep-19 0CON_1310 Replace Kerbs & Surfacing 5 16-Sep-19 20-Sep-19 0CON_1320 Lay ' Mul colour' Natural Quartzite Paving 2 23-Sep-19 24-Sep-19 0CON_1330 Street Furniture 4 25-Sep-19 30-Sep-19 0CON_1340 Topsoil, Turf & Plan ng 4 01-Oct-19 04-Oct-19 0CON_1350 Weather TRA 5 07-Oct-19 11-Oct-19 0

Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec2019

Procure / Call Off StoneDress Replacement Stone

Replacem ent Stone TRAReconstruc on

Earthworks Stage 4 - Remove Crane Piling / Excavate Founda ons & Remove PavingInstall Drainage, Gul lies, Catchpits & Ou alls

Construct Founda onsDucts & Chambers

Reconstruct Plaques, Walls & CenotaphStage 5 Earthworks - Remove Crane Pla orm , Dig & Sub Base For Kerbs & Paving

Install Conserva on KerbsInstall Sandstone & Recons tuted Paving

Reconstruct Plaques, Walls & Cenotaph TRAElectrical Works To Ligh ng

Remove Cabins & BoardingRepl ace Kerbs & Surfacing

Lay ' Mul colour' Natural Quartzite Pavi ngStreet Furniture

Topsoil, Turf & Plan ngWeather TRA

Actual Work

Remaining Work

Critical Remaining Work

Milestone

Remaining Level of Effort

Summary

Cenotaph Target Cost Programme_Rev8.0Data Date 30-Nov-18

Page No. 2 of 2Print Date & Time:- 03-Dec-18 ~ 14:40

CRMM0444 Cenotaph

Traffic Management Plan

Legend

70 mN

➤➤

N© 2018 Google

© 2018 Google

© 2018 Google

CRMM0444 Cenotaph

Traffic Management Plan

Legend

70 mN

➤➤

N© 2018 Google

© 2018 Google

© 2018 Google