Key Takeaways

  • The New York City Department of Sanitation collects and exports 24 million pounds of waste every day without rear alleys to stage it.
  • The Commissioners' Plan of 1811 laid out Manhattan's street grid without utility alleys, maximizing buildable lot space while forcing refuse onto curbs.
  • Chicago avoided curbside trash by building rear alleys behind almost all buildings, which is why Hollywood shoots New York alley chase scenes on Chicago streets or soundstages.
  • Mayor John Lindsay created the Committee on the Black Bag after the 1968 sanitation strike, New York's last major sanitation labor action, overwhelmed metal trash cans.
  • The plastics industry sold plastic trash bags as rodent-resistant, a false claim published uncritically in contemporary press reports that locked the city into fifty years of sidewalk bags.

Manhattan Built Out Alleys in 1811

New York City runs on a strict spatial deficit. Joshua Goodman points out that municipal operations run headfirst into a fixed physical boundary: “In New York City, the only non-renewable resource is public space, right? There is a finite amount of room. And so when the streets were laid out in the 1811 master plan, the city was built without alleyways.” (play from 9:17)

When state commissioners drew Manhattan's street grid in 1811, they prioritized private real estate over utility lanes. Every square foot went toward buildable plots and public avenues. That decision separated New York from peer cities. Chicago planned rear alleys behind almost all buildings to store and collect refuse. Manhattan left no rear access points. Hollywood directors still run into this historical quirk when filming crime thrillers; if a movie features an alley chase in New York, the production crew shot the sequence in Chicago or on a Los Angeles soundstage.

Without alleys behind private buildings, residential waste had nowhere to sit except public sidewalks. For more than a century, property owners staged heavy metal cans directly along the pedestrian curb. The arrangement crowded sidewalks, but it contained the waste within metal walls that local pests could not easily breach.

The Plastics Industry Sold Lindsay a Rat Myth in 1968

The shift from metal cans to black bags happened because of a municipal labor crisis. In February 1968, New York sanitation workers walked off the job for nine days. Refuse piled up across all five boroughs, far beyond what existing metal cans could contain.

When the strike ended, Mayor John Lindsay needed an immediate way to clear the backlog and speed up daily collection runs. Goodman explains that Lindsay turned to an experimental packaging product: “Mayor Lindsay put together a group to study a number of after-effects of the issues the city had faced during that time, one of which was a task force called the Committee on the Black Bag. It studied plastic trash bags, which were basically new at that time.” (play from 10:05)

The plastics industry saw an opening to secure municipal scale. Goodman notes the aggressive sales pitch: “The plastics industry pushed them as rodent resistant, which obviously we know they're not. And you can easily find New York Times coverage from that time of people proudly stating that the transition from metal garbage cans to black bags will reduce rats while freeing up public space.” (play from 10:18)

City hall accepted the vendor pitch without independent testing. Thin polyethylene bags solved the immediate labor bottleneck because sanitation crews could throw lightweight sacks into compactor trucks far faster than lifting heavy metal barrels. But trading rigid metal for soft plastic created a fifty-year rat feeding frenzy on city sidewalks. DSNY is now spending millions of dollars to reverse that 1968 decision, deploying custom automated side-loader trucks and containerized street bins to take waste off the curb.

What to Do With This

Audit your operational infrastructure for vendor quick fixes adopted during past emergencies. Pull your team's runbook and identify any third-party tool adopted under pressure more than twelve months ago to bypass a capacity bottleneck. If your team accepted a vendor's claim that their tool would eliminate downstream bugs without requiring architectural changes, review your incident reports from the last ninety days. You will likely find an unaddressed operational debt that creates more daily drag than the crisis you bought it to solve.