KC tests new 'green' solution for sidewalks, sewer overflows

Concrete doesn’t usually act like a sponge, but that’s exactly what the pervious concrete sidewalk did when the Kansas City water department tested it Tuesday.

“It was very successful,” said Rich Johannes, engineer with URS Corp. and project manager for Kansas City’s “green solutions” pilot project on sewer and stormwater management in south Kansas City.

As part of its $2.5 billion sewer overhaul project, Kansas City is testing environmentally progressive ways of managing sewer overflows. The methods include landscaping and using pervious concrete for sidewalks.

Crews poured a block of pervious sidewalk last week at 77th Street and Holmes Road, and on Tuesday, they tested whether the concrete sidewalk absorbed a large bucket of water. It did, while the water flowed off an adjacent section of regular concrete.

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