Blowing grass clippings into the street is dangerous and against City ordinance. City Ordinance Section 215.020: Nuisances Affecting Health (p) All ashes, cinders, slops, filth, excrement, sawdust, stones, rocks, dirty, straw, dead grass, grass clippings, dead limbs, leaves, brush, logs, weeds, foliage, shrub cuttings, clippings, soot, sticks, shavings, eggshells, oyster shells, cans, dust, brush, logs, … More Keep Grass Clippings Off the Streets