How green is your alley?

An innovative groundwater recharge scheme in Chicago will save taxpayers money and reduce flooding. Kathy Shandling investigates.

With 1,900 miles of public alleys, Chicago is indisputably the alley capital of the United States. The city has historically had a flooding issue in its alleys owing to the fact that they were built without a connection to the combined sewer and stormwater system. While one solution would have involved installing expensive connections to the existing sewer system ...

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