One agency, the airport, the islands, and the waterfront
Toronto Harbour
The Toronto Harbour Commissioners, formed in 1911, built both of the city's airports before the modern port authority took over — a single agency's fingerprints are on more of Toronto's infrastructure than most people realize.
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Toronto Harbour splits into two distinct bodies of water — the original, sheltered Inner Harbour, reached through the Western and Eastern Gaps, and the more exposed Outer Harbour further along the Leslie Street Spit. Managing both has been the job of a surprisingly small number of agencies over the past century.
The Toronto Harbour Commissioners (1911)
Formed in 1911 as a joint federal-municipal agency, the Toronto Harbour Commissioners took on responsibility for the harbour and waterfront at a moment of genuine ambition — the same agency that, by 1939, had built both Malton Airport (now Toronto Pearson) and the Toronto Island Airport (now Billy Bishop). Very few single agencies anywhere in Canada can claim to have built two airports outright.
A modern port authority
The Canada Marine Act established the Toronto Port Authority on June 8, 1999, part of a broader federal modernization of Canadian port administration. In 2015 it rebranded as PortsToronto, reflecting its dual role running both the marine Port of Toronto and Billy Bishop Airport, before reverting to its original legal name in the 2020s.
What it runs today
PortsToronto (Toronto Port Authority) continues to operate Billy Bishop Airport, the Port of Toronto's marine shipping operations, the 636-slip Outer Harbour Marina on the Leslie Street Spit, and a range of waterfront real estate holdings — the direct institutional descendant of a 1911 agency whose original mandate was simply "figure out what to do with the harbour."
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