Subway expansion in New York

In the mid-1960s, $600600,000,000 was made available to the Metropolitan Transit Authority (MTA) of New York City for the purposes of subway expansion. $1,230,000,000 was spent to create three tunnels and a half-dozen holes. Construction would cease in 1975 on account of the city's severe fiscal crisis. None of the sections were usable by the time federal payments were suspended in 1985.

Source: Harrison Rainie: Tunnels to Nowhere: Washington Monthly, March 1986.