Engineers wanted to double the artery's width, a task complicated by the 131,000 people a day who still needed to use it and the nonstop parade of trains overhead.
It's a nonstop parade of puns ("I'm my brother's bleeper"), tweaked aphorisms ("You think, therefore I scam") and linguistic gymnastics.
Anyone standing on a Ginza street corner today would see some of the world's most chic and expensive shops and a nonstop parade of stylishly dressed and well-heeled customers, despite 10 years of recession.
The Zucker-Abrahams-Zucker team, those eternal sophomores, have assembled a delirious nonstop parade of silly gags, the majority of which manage to hit home.
She cited bathroom floors covered in urine, a lack of supplies, and a nonstop parade of janitors.
Awards shows sometimes seem like nonstop parades of lip-synched gimmickry, but according to Ken Ehrlich, the producer of next week's Grammy Awards, that show will feature only live vocals.
A nonstop parade of office patients ever since.
Others, like "Trauma" or "Paramedics" on TLC, feature a nonstop parade of tragedies while also taking time out to get to know some of the medical personnel.
Jannie and Rosie the cat cuddled with me on the couch as we watched the nonstop parade of news features on the assassination and the subsequent capture of the real Jack and Jill.
A nonstop parade of longhaired valets, nannies, neighbors and the occasional stray dog wander through the maze of Moroccan-style rooms situated on four separate floors.