PERT — Bridge Deck Replacement
Critical-path network for a weekend motorway bridge deck replacement, from possession handover through demolition and beam lift to trafficking, with the concrete cure dictating the float everywhere else.
Make it your own.
title "M6 overbridge deck replacement — 96-hour possession"
unit hours
task A "Take possession and close carriageway" duration 3
task B "Erect temporary works and edge protection" duration 6 after A
task C "Divert services on the deck" duration 8 after A
task D "Saw-cut and demolish existing deck" duration 14 after B,C
task E "Prepare bearing shelves" duration 6 after D
task F "Deliver and stage precast beams" duration 5 after A
task G "Lift and land beams" duration 10 after E,F
task H "Stitch pours and waterproofing" duration 9 after G
task I "Concrete cure and strength gain" duration 20 after H
task J "Surfacing and joints" duration 8 after I
task K "Parapets and safety barriers" duration 7 after G
task L "White lining and signing" duration 4 after J,K
task M "Handback inspection" duration 3 after L
milestone N "Carriageway open to traffic" after M