Billions needed to upgrade America’s leaky water infrastructure

At first glance, the pizza-size hole that popped open when a heavy truck passed over a freshly paved District street seemed fairly minor.

Then city inspectors got on their bellies with a flashlight to peer into it. What they discovered has become far too common. A massive 19th-century brick sewer had silently eroded away, leaving a cavern beneath a street in Adams Morgan that could have swallowed most of a Metro bus.

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Robert Barnes 03 Jan, 2012
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Source: http://feeds.washingtonpost.com/click.phdo?i=266e799ffdcb8eba4537c355210c639f
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