Disney World solved a problem that could save America billions every year

Buried beneath every American city is a mysterious jumble of cables, pipes, and gas lines, entangled like a pair of wired headphones the moment you pull them out of your pocket. Every time a contractor sticks a shovel in the asphalt, they embark on a high-risk excavate-by-dots obstacle course, dodging color-coded clusters of spaghetti-like power lines, gas mains, sewers, and fiber-optic cables. A line of blue spray paint means water. Red means power. Yellow is gas. Orange is telecom. 

About 700,000 times a year — that’s once every 47 seconds — something goes wrong. 

A backhoe slices into a cable and cuts off a 911 call center, or a woman comes home to find her dryer and hot water heater on fire after a contractor pierced her electrical line. Just last week, a contractor accidentally severed a single telecommunication cable that proved critical enough to ground flights at some of the nation’s largest airports on the eve of the UN General Assembly, ensnaring even world leaders like Canadian Prime Minister Mark Carney in delays. 

The ground beneath our city streets has never been so crowded, driven by a furious race to lay fiber optic cables carrying the data that fills your social media feeds and transmits your ChatGPT queries. Nor have the systems we use to find out where it’s safe to dig — namely, a hotline and all that colorful spray paint — ever felt so catastrophically insufficient. 

“If the locator mismarked the line, if the line wasn’t marked, if there was no map that even said the line was there,” said Sarah Magruder Lyle, president of the Common Ground Alliance, a trade association focused on underground damage prevention, “there are a variety of issues that could happen before the excavator even puts a shovel or a backhoe in the ground.”

According to Common Ground, such incidents cost the US about $83.2 billion per year, roughly as much as we invest in public transit annually nationwide. But the actual financial toll may be even higher, because every time a crew stumbles across a mislabeled power line or a gas pipe everyone else forgot about, it can delay construction for months on end. As Magruder Lyle put it, “if they get out there and they find something that they’re not supposed to, you have to go back and reengineer the whole project.” 

Such surprises can also lead to tragedy. A 5-year-old named Alistair Lamb was killed in Missouri last spring after a contractor drilled into a gas line near his home, spewing fumes that leveled his house when his unsuspecting father flipped a light switch. And just this May, another unmarked gas line killed three people when contractors struck it, leading an apartment complex in Dallas to explode.

Yet the messy underbelly of our cities remains largely invisible, with accountability for issues foisted upon and at times evaded by a hodgepodge of finger-pointing private utility companies, agencies, and contractors. And that’s a shame because there is, in fact, a better way to bury the cables and pipelines that our modern lives depend on, and a multitude of better ways that we can find the ones we’ve already buried. 

What Disney World gets right about the stuff we bury

To understand one utopian vision for how all this could work, look no further than the happiest place on Earth. That’s a moniker Disney World has earned, in my mind, not for its Mickey Mouse waffles (though my niece may disagree), but for its world-class utility corridors, also known as utilidors.

Directly beneath the Magic Kingdom is a sprawling network of tunnels. Initially designed to shepherd around Mickey and his friends, the system now also serves as one of the largest utility corridors ever created. Unlike the rest of America, where cables are typically dumped in ditches before being covered with dirt, the electrical lines that power Cinderella’s castle quite literally get the princess treatment. 

Alongside water pipes, sewers, and animatronic control systems, these power lines lace the walls and ceilings of the utilidors, meaning they’re protected from weather and changes in the soil. They are also easy to monitor, catalog, and access if something needs fixing. While the cost of building a controlled system like this is much higher upfront than burying directly in the ground, the practice virtually eliminates the risk of accidentally rupturing a gas main or slicing a fiber optic cable during routine maintenance. Once they’re built, they can also drastically reduce costs in the long run because you no longer need to tear up a street every time a utility needs fixing. 

“Obviously, it’s expensive,” said Debra Laefer, a professor of civil and urban engineering at New York University, “but in the long term, it would be hugely cheaper,” especially “in areas where we are digging all the time, there’s a direct business case for moving towards these utilidors.”

As fantastical as Disney World’s imagineered system may seem — and it was, to be clear, predicated on a not-easily-reproducible master plan — the idea of storing utility lines in easy-to-access tunnels is not just for amusement parks. It is possible even in places where most of those lines are currently lying in the dirt, as Prague proved back in the 1970s, when the city decided it was fed up with destroying its precious cobblestone streets every time a buried pipe or cable needed fixing. The city now boasts a sprawling utility tunnel network, occasionally patrolled, evidently, by a couple of robot dogs tasked with mapping out every cable. 

Singapore has also spent years building out walkable utility corridors that operate much like the Magic Kingdom’s, transmitting water, data, and energy from the safety of well-organized underground tunnels. Some of Tokyo’s largest districts store their cables and gas lines in huge concrete utility ducts, and many Parisian water lines and fiber optics are kept across the city’s centuries-old sewer system, a catacombs of waste made easily navigable by blue-and-white street signs that correspond to the avenues above. Many university campuses across the US also boast their own sprawling utilidors.

In most cases, cities chose not to relocate utilities all at once, a feat that would probably be financially prohibitive and deeply disruptive. Rather, they took advantage of all the times they’ve needed to relocate utility lines anyway, a standard (and expensive) practice for big building projects like the Wallis Annenberg Wildlife Crossing or the Second Avenue Subway, a major transportation project in New York City that’s been consistently delayed by unmapped utility lines. A group of graduate students found that building such a tunnel in parts of NYC would likely cost at least twice as much as dropping a utility line in the ground, but could recoup the costs within 47 years. 

“There are streets in New York City that have been excavated at least once a year, every year for the past 30 years,” Laefer said. If you just prioritize those streets, gathering the piping in a “big concrete box” underground, you could allow workers to complete most repairs without needing to disturb the streets or sidewalks above at all.

But building new utility tunnels would require that we first come to better understand the wires and piping already entangled under our cities, which if you recall, we have only a surprisingly flimsy picture of in most cities today. But if every surprise utility line is an opportunity to move it somewhere better, it is also an opportunity, at the very least, to map out where it is.

To that end, a few years ago, Laefer led a $1.2 million pilot funded by the National Science Foundation to create a test case for 3D-mapping New York City’s underground utilities, a project that’s since been adopted into a citywide initiative. The city says it plans to roll out the spruced up utilities locating system in 2028. The UK debuted a similar digital map of over 3 million kilometers of underground pipes and power, owned by hundreds of utilities and agencies a few years ago. The nation projects that it could help save over $500 million per year by minimizing delays and accidental damage. In places where Singapore has not yet stuffed its utilities into walkable tunnels, the city’s own mapping and utilities coordination has already saved it an estimated $230 million in avoided clashes since 2024. Not bad for an intervention that doesn’t even require any physical rebuilding.

So why hasn’t every American city copied London or Singapore?

Well, US cities tend to be plagued by even more private utilities and patchwork local and state norms and regulations than a nation like the United Kingdom. Getting them to pool together what they often consider proprietary underground data is challenging, and few local officials have opted to prioritize such efforts. But this may well change as more and more fiber optics go into the ground, more flights get canceled, more apartment complexes explode, more power lines flicker off, more sinkholes form, and more Americans come to be all too acquainted with the perils lurking just beneath our feet. 

“I think at this point, it’s more about political will and money than any technical obstacle,” Laefer said. “Technically, we’re there. It’s just a matter of doing it.”