New York City's Sewer Enigma
Videos show groups repeatedly entering NYC sewers, baffling officials and residents.
Anonymous
Security cameras have caught groups of people sneaking into New York City's sewer system at night — at least three times in the span of a month. NBC New York reported that one group of eight emerged from a manhole in Brooklyn's Gravesend neighborhood around 2:00 AM on May 29, changing out of soiled gear into fresh clothes at parked cars before driving away.
The NYC Department of Environmental Protection confirmed the sewer infrastructure was not damaged. But officials warn that entering the sewers is, in the words of DEP spokesperson Rob Wolejsza, "not only illegal but extremely dangerous" due to "noxious and potentially deadly gases, unstable surfaces, and flooding risks." No arrests have been made.
Three Nighttime Incursions Caught on Camera
The first incident happened on May 5 in Astoria, Queens. Three people wearing waterproof hip waders pried open a manhole cover and went underground. A fourth person pulled the cover shut behind them. The whole thing was captured by cameras at a nearby auto shop. Owner Aki Jakupovic said the group looked professional but worried they were "up to no good," according to KSL News.
Then, on the night of May 28, two separate groups — each with eight people — entered manholes in Brooklyn. One group went into a tunnel near McDonald Avenue in Gravesend around 11:00 PM. Another entered near Heyward Street in Williamsburg around 1:00 AM. Both groups spent roughly two to three hours underground before surfacing. One person nearly got hit by a passing car while climbing out, according to KSHB.
Scavengers or Explorers? Investigators Weigh the Motives
The leading theory from law enforcement is that the groups are searching the sewers for valuables. Senior officials told NBC New York the groups may be "scouring the system" for jewelry and coins that wash into the system through street drains. This practice is sometimes called "drainage scavenging" and is more common in older European cities.
Not everyone buys the treasure-hunter theory. Urban historian Steve Duncan told the Associated Press that some people are drawn underground simply to "experience the city in a different way." But he also called sewer tunnels "terrifying places" that take immense planning to navigate safely. Williamsburg resident Anthony Purdie was blunter: "They look like they were looking for something important, like money," he told CTV News.
NYC's Sewer System Is 7,500 Miles of Hidden Danger
New York City's sewer system stretches 7,500 miles and treats an average of 1.3 billion gallons of wastewater every day, according to NYC DEP official statistics. Some of the brick-lined tunnels still in use in Brooklyn are more than 150 years old. About 60% of the system combines sewage and stormwater, meaning a sudden rainstorm can instantly flood tunnels with millions of gallons of water.
On June 1, the DEP and NYPD Emergency Services Unit swept the tunnels at both Brooklyn locations. They found no damage and no suspicious materials. Still, NYC Council Member Susan Zhuang called the activity "dangerous, illegal, and cannot be dismissed," according to WKBW. Under city law, unauthorized sewer entry can result in fines up to $10,000 and potential burglary charges if criminal intent is proven.
Residents Demand Answers and Better Safeguards
Neighbors in Gravesend and Williamsburg have raised fears that the groups could have been planting devices or tampering with infrastructure. The NYPD has officially said there is "no threat to public safety," according to Fox 13. Still, the incidents have sparked calls from council members for better surveillance in residential areas.
One proposed fix is sensors on manhole covers that alert authorities when a cover is lifted without permission. Locking covers — already used near sensitive sites like City Hall — could cost millions if rolled out city-wide. This is not the first time people have been caught. In April 2025, three men were arrested in Brooklyn for similar sewer entries and charged with burglary and criminal mischief, according to WCPO.
Sentiment
NeutralNEGATIVENEUTRALPOSITIVE
Publishers
10
Articles
10
Reach
10
Topics
A
AnonymousAuthor
