Parliament Hill, Ottawa, Ontario, Canada
ESTIMATEDDate confidence: ESTIMATEDA target, not a fixed dateHow firmly the source words the date: confirmed, scheduled, estimated, delayed or unverified.Show all ESTIMATED pins65% CONFIDENCEOverall confidence: 65%How well the pin's source and references back up its dates.Weighted average of how firmly 4 references, the source included, support the pin's start and end times; a reference counts half as much for every 180 days older than the newestShow all pins from 50% to 74% confidence
Happened as dated, per the source[1]: "controlled explosives use and rock removal activities" began in front of Centre Block on Parliament Hill on July 30, 2020. Completion: PSPC Centre Block quarterly progress report (April 1 to June 30, 2026): "We aim to complete main construction between 2030 and 2031. The Centre Block will reopen about 1 year later" (end uses the later year, 2031).Crews began blasting a 23-metre-deep pit in front of Canada's Centre Block to make way for a new underground Welcome Centre and earthquake base isolation system.
≈$3.6B
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