Dirt Dogs Excavating has been grading dirt roads for Douglas County, Colorado for over 7 years. In fact, we recently graded about 7 miles of dirt road (with a granite road base) in Parker making it nice and smooth. Those dirt roads and back roads in Douglas County need regular repair and maintenance so they stay in good shape. Other dirt roads that aren’t maintained will probably rattle the teeth out of your head if you’re driving around out there. So next time you drive on those back roads and notice how nice and smooth your ride is…you can thank Dirt Dogs!