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 5 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
Denver Water’s[2][5] own milestone account states June 3, 2026 in the body, but captions its June 2 photograph as the final day of RCC placement. June 3 is retained as the operator’s reported milestone with estimated confidence pending reconciliation of this one-day inconsistency; topping out does not complete remaining work.Denver Water finished raising Colorado's Gross Dam by 131 feet, topping out the concrete work that will nearly triple the reservoir's storage capacity.
$602M
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