(Portland, OR) -- Portland's leaf collection service starts this Saturday. Thirty-thousand new addresses have been added. The Portland Bureau of Transportation sent brochures to nearly 100-thousand businesses and residences to explain how the program works. Residents need to check the Leaf Day website to find out what day their street will be cleared. Leaves should be raked into the street the day before, leaving one foot at the curb for rain runoff. Residents in Northwest Portland, Goose Hollow or Sullivan's Gulch need to keep vehicles off the street to avoid being towed.