The U.S. Has Over 700,000 Miles of Public Sewers

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The U.S. sewer system is a sprawling network of over 700,000 miles — enough to circle the Earth 28 times! But beyond the jaw-dropping scale, these underground lifelines are essential to public health, environmental protection, and daily life. Here’s what makes this system so vital:

  1. Moving Mountains of Waste: Every day, sewers transport billions of gallons of wastewater to treatment plants, keeping homes and cities clean and safe.
  2. Protecting Waterways: Properly functioning sewers prevent untreated wastewater from polluting rivers, lakes, and oceans, preserving ecosystems and drinking water supplies.
  3. Aging Infrastructure: With many sewer systems built over 50 years ago, upgrades and maintenance are critical to avoid costly failures.
  4. Job Creation: The industry supports thousands of jobs, from construction crews to treatment plant operators.
  5. Adapting to Climate Change: Modernizing sewer systems helps cities prepare for heavier storms, flooding, and other extreme weather events.

America’s vast sewer network is a marvel of engineering, but it’s also a reminder of the importance of investments to keep things flowing for generations to come.



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