Roof gardens, porous pavement: Kansas City plans green sewer system

Kansas City and federal officials are collaborating to turn the sewer project looming in the city's future into a showcase for ways to make a sewer system environmentally friendly.

Instead of $2.3 billion of concrete, they're talking about using such things as pocket wetlands, vegetative median strips, rooftop gardens and porous pavement.

All that could turn Kansas City into the kind of national role model it hasn't been since the boulevard and parks systems were designed at the turn of the 20th century, said John Franklin, assistant city manager.

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