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.
Streetsblog's[3] report of 24 August 2026 on the new mayoral plan - 'Construction will start in 2030, wrap up in 2040', a 10-year $4 billion rebuild - is newer than the NYC[2] DOT project page's 2029 start, which is where the pin's earlier date came from. No day is given, so it is dated to the last day of 2030.
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Proposed; construction not started
“Construction will start in 2030”
The triple-cantilevered stretch of the Brooklyn-Queens Expressway is deteriorating.
How: Rebuild the segment over 10 years using a temporary two-tiered bypass highway beside the cantilever along Furman Street.
The published cost is $4 billion: Mayor Mamdani's decade-long rebuild of the BQE Central triple-cantilever with a temporary bypass.[3]