installation of concrete curbs with gaps that let water into the park into the ditch, where it seeps into the grass and does not d

architecture cobblestone color concrete curb curbs curved ditch does drain drainage environment gap gaps garden gardening granite grass gray green gutter industrial installation kerb kerbs kerbside landscape landscaping let light line natural nature new not outdoor park path paving permeability permeable perspective place plant road seepage seeps separation sewer sewing side sidewalk square stone street surface that town view walkway water where