References 470% CONFIDENCEOverall confidence: 70%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

The first entry is always the pin's source. Overall confidence is a weighted average of how firmly each reference supports the start and end times used above; a reference counts half as much for every 180 days older than the newest.

• [1]50%
  thefrisc.com/ocean-beach-plan-to-replace-an-eroding-stretch-of-great-highway-is-delayed-again

  thefrisc.com· Posted Sep 24, 2026· Starts Dec 31, 2029 ✓· 47% of score

  SFPUC’s^[2] current narrative anticipates major construction in late 2029, while an older sidebar still says 2027. Retains December 31, 2029 as an estimated late-year anchor, not an announced day; latest narrative controls the superseded sidebar.

• [2]90%
  Ocean Beach Climate Change Adaptation Project

  sfpuc.gov· Added Sep 24, 2026· 47% of score

  The SFPUC's own project page: major construction 'now anticipated for late 2029', about four years long, with the project elements, phasing and parking changes. Construction research 2026-10-24: SFPUC explicitly lists Ocean Beach adaptation in Design and says major construction is now anticipated in late 2029. Proposed applies to that future main-build milestone, not In Progress because unrelated coastal work exists. The retained US$175m approval-era project estimate comes from opened November 2024 reporting; a revised budget after the schedule/design changes remains a follow-up. December 31, 2029 is only an estimated late-year anchor. Source quote: “anticipated for late 2029”

• [3]80%
  California regulators approve huge Ocean Beach seawall to avert prospect of 'major emergency' for S.F.

  sfchronicle.com· Published Nov 12, 2024· 3% of score

  Coastal Commission's unanimous approval of the $175 million project, the 3,200-foot buried seawall and the Lake Merced Tunnel it protects. Construction research 2026-10-24: SFPUC^[2] explicitly lists Ocean Beach adaptation in Design and says major construction is now anticipated in late 2029. Proposed applies to that future main-build milestone, not In Progress because unrelated coastal work exists. The retained US$175m approval-era project estimate comes from opened November 2024 reporting; a revised budget after the schedule/design changes remains a follow-up. December 31, 2029 is only an estimated late-year anchor. Source quote: “$175 million” Approval-era total; not a newly published 2026 final account.

• [4]75%
  A portion of S.F.'s Great Highway will be permanently closed to cars. Here's what will replace it

  sfchronicle.com· Published Apr 30, 2024· 2% of score

  The earlier promise: the Great Highway Extension between Sloat and Skyline to close to cars by early 2026, with Sloat Plaza and the trail.^[1]

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