Timeline — Sellafield Decommissioning Programme
Century-scale decommissioning programme for the legacy ponds and silos, separating retrievals milestones from site-wide end-state phases across a horizon no Gantt chart can hold.
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title "Sellafield legacy retrievals and site end state, 1950-2125"
axis 1950 2130
era 1950 2003 "Operational era" color slate
era 2003 2045 "Legacy retrievals" color amber
era 2045 2085 "Facility demolition" color teal
era 2085 2130 "Site end state" color green
lane "Facilities"
event 1952 "Pile fuel storage pond commissioned"
event 1964 "Magnox swarf storage silo built"
event 2003 "Retrievals programme established"
event 2015 "First waste retrieved from the pile fuel cladding silo"
event 2022 "Magnox swarf silo retrievals begin"
event 2030 "First generation Magnox storage pond emptied"
event 2050 "Legacy ponds and silos declared retrieved"
lane "Site-wide"
event 1994 "THORP begins operation"
event 2018 "Magnox reprocessing ends"
event 2022 "THORP receipts cease"
event 2075 "Final structures demolished"
event 2120 "Interim end state achieved"