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A) Preliminary Works -) Rental Of Adjacent Land, -) Clearing And Preparation Of The Access Path To The Bridge (Via The Path Along The Iwoigne And The Road To Neufchâteau N94 And/Or Via Houyet), -) Preparation Of The Access Area In And Around The Lesse And The Construction Ford, B) For The Reinforcement Of The Pier In Lesse. -) Bringing And Placing The Materials And The Cofferdam Around The Pile In Phase (And Moving If Necessary), -) Clearing The Foot Of The Pile In Phase (Clearing And Excavations), -) Creating Anchors In The Ground And In The Masonry, -) Formwork, Reinforcement And Concreting Of The Reinforcement In Phase, -) Removal And Evacuation Of The Cofferdam. C) For The Replacement Of The Metal Decks With A Reinforced Concrete Frame Bridge (Tracks A And B). -) Preparatory Earthworks, -) Installation Of The Bypass And Safety Device For Pedestrians, -) Construction Of The New Reinforced Concrete Framework Bridge Under The Active Decks Of Tracks A And B, Or Next To It For Later Pushing, -) Partial Backfilling Between The Old Abutment And The New Frame. -) Restoration Of The Path Within The Framework, -) Masonry Of Rubble And Various Re-Rigging, -) During The Ctl (Decommissioning Of Tracks A And B) - Preparatory Work And In Particular The Installation Of Cable To Ensure The Continuity Of The Return Current, - Removal Of Tracks A And B And Evacuation Of The Two Metal Decks, - Removal And Evacuation Of The Two Metal Decks, - Adaptation Of The Bases With Demolition And Small Concrete Construction. - Additional Backfilling Of Abutments And Various Adaptations, - Refitting Of Ballast And Tracks, - Track Work Before Return To Service, -) After Return To Service Of The Track(S), Finishing Work On The Side Walkways And The Masonry Connecting To The Existing Infrastructure, -) Removal Of Temporary Devices. D) For The Replacement Of Metal Decks With Mixed Steel-Concrete Decks (Path B Only). -) Preparatory Work And In Particular The Removal Of Track B On The Two Metal Decks (By The Successful Bidder) And The Shifting Of The Catenary By Infrabel, -) Preparatory Work And In Particular The Installation Of Cable To Ensure The Continuity Of The Return Current, -) Preparatory Work And In Particular The Temporary Support Of The Infrabel Cables By A Particular Device Which Will Not Interfere With Future Work, -) Preparatory Work And In Particular The Prior Removal Of The Supports By Jacking, -) The Removal Of The Two Decks Of 120 Tonnes Each Is Done By A 500 Tonne Telescopic Crane Placed On A Platform Created In The Lesse. The Apron Must Be Cut Partially And Also In Two Parts Along Its Entire Length. Metal Support Reinforcements Must Be Placed As The Deck Must Be Cut Before Lifting. The Evacuation Of Steel Is Also Done By Road. This Phase Takes Place Protected From A Total Line Cut On Both Tracks (Ctl). -) Installation Of The Between-Track Armoring, -) Careful Demolition Of The Abutment Bed Bases And The Pier In Order To Prepare The Area To Be Concreted, -) Drilling Of The Vertical And Horizontal Anchors Between The Old Abutment And The New Part, -) Manufacturing Of The New Bed Bases, -) The Installation Of The 8 Beams (Of 3 To Tons Each) Brought To Track A By Rail (By An Infrabel Convoy Provided Free Of Charge). Arrangement) Is Done By A Single Crane Placed On A Platform Laid Out In The Lesse -) The Sealing Of The Supports And The Temporary Blocking Of The Beams, -) The Formwork And The Reinforcement Of The Slab On Site, -) The Installation Of Waterproofing And Bridge Joints, -) The Installation Of Finishes Such As For Example The New Catenary Post And The Side Walkways, -) The Ballasting And Refitting Of Track B. -) The Reinstallation Of The Catenary By Infrabel. E) For The Maintenance Of Infrastructure. -) Bringing The Necessary Equipment, -) Setting Up Access Scaffolding, -) Setting Up Protective Devices, -) Sanding And Repairing Masonry And Joints, -) Cleaning The Site. F) For The Rectification Of The Banks Of The Lesse. -) Access And Earthworks, Including The Evacuation Of Products In Accordance With Current Legislation, -) Laying Of Riprap With Possible Installation Of A Dike To Protect Against The Lesse, -) Various Finishes.
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